Canon QY8-1360-000 Printer User Manual

REVISION 0
OCT. 1998
QY8-1360-000
COPYRIGHT  1998 CANON INC. CANON BJC-7100 1098 AB 5.00-0 PRINTED IN JAPAN (IMPRIME AU JAPON)
1098 AB 5.00-0
Target Readers
This manual is published by Canon Inc. for qualified persons and contains the necessary technical
information for technical theory, installation, maintenance, and repair of products. This manual covers
all localities where the products are sold. For this reason, it may contain information that does not
apply to your locality.
Revisions
This manual may include technical inaccuracies or typographical errors due to improvements or
changes in the products. When amendments are made to the content of this manual, Canon will issue
technical information as the need arises. In the event of major alterations to the content of this manual
over a long or short period, Canon will publish a revised version of the manual.
The following paragraph does not apply to any countries where such provisions are
inconsistent with the local law.
Trademarks
The product names and company names appearing in this manual are the registered trademarks or
trademarks of the individual companies.
Copyright
This manual is copyrighted and all rights reserved. Under the copyright laws, this manual may not be
copied, reproduced, or translated into other languages, in whole or in part, without the express written
consent of Canon Inc. except in the case of internal business use.
Copyright  1998 by Canon Inc.
CANON INC.
BJ Products Quality Support Dept.
16-1, Shimonoge 3-chome, Takatsu-ku, Kawasaki, Kanagawa 213, Japan
This manual was produced on an Apple Macintosh Power Mac 7300/180 personal computer and Apple
LaserWriter II NTX-J laser beam printer; final pages were printed on Agfa SelectSet Avantra 25.
A YANO 640MO drive system NJ640MO with MITSUBISHI MO disk cartridge MR230M1 were used for
storing large volumes of page layout and graphic data for this manual.
All graphics were produced with MACROMEDIA FREEHAND 7.0J.
All documents and all page layouts were created with QuarkXPress 3.3J.
I. ABOUT THIS MANUAL
This manual is divided into five parts containing the information required for servicing the BJC7100 printer.
Part 1: Safety and Precautions
This part contains information on how to service the unit safely. It is very important, and
must be read.
Part 2: Product Specifications
This part outlines the product and its specifications.
Part 3: Operating Instructions
This part explains how to operate the unit properly, how it is installed, and how to use
the service mode.
Part 4: Technical Reference
This part outlines the unit operation giving a technically.
Part 5: Maintenance
This part explains maintenance of the unit. It includes details of disassembly/assembly,
adjustments required when assembling, troubleshooting procedures, and wiring/circuit
diagrams, etc.
This manual does not contain complete information required for
disassembling and assembling the BJC-5500 printer. Please also refer to the
separate Parts Catalog.
I
II. TABLE OF CONTENTS
Part 1: SAFETY AND PRECAUTIONS
Page
1- 1
1- 1
1- 2
1- 3
1- 3
1- 4
1- 5
1- 6
1- 7
1- 7
1- 7
1- 7
1- 8
1- 8
1- 9
1- 9
1- 9
1- 9
1 -10
1 -10
1 -10
1 -11
1 -11
1 -12
1 -12
1 -13
1 -13
1 -14
1 -15
1 -15
1 -15
1 -15
1. SAFETY PRECAUTIONS
1.1 Moving Parts
1.2 Front Cover
1.3 Ink Stains
1.3.1 Ink path
1.3.2 Ink mist
1.4 Live Parts
1.5 BJ Cartridge Metal Plate
2. MACHINE PRECAUTIONS
2.1 BJ Cartridge Handling
2.1.1 Unpacking the BJ cartridge
2.1.2 BJ cartridge protection
2.1.3 Power on/off
2.1.4 When not using the printer
2.1.5 Ink electroconductivity
2.2 Ink Tank Handling
2.2.1 Unpacking the ink tank
2.2.2 Preventing clogging
2.3 Printer Handling
2.3.1 Spurs
2.3.2 Damage due to static electricity
2.3.3 Ink Leakage and dry-out
2.3.4 Carrying the printer
3. NOTES ON SERVICING
3.1 EEPROM Data
3.2 Service Mode of Printer Driver
3.3 Protecting the Power Supply
3.4 Static Electricity
3.5 Disassembly and Assembly
3.5.1 Parts that cannot be disassembled
3.5.2 Parts requiring careful attention during disassembly and assembly
3.6 Self-Diagnosis
2- 1
2- 1
2- 2
2- 3
2- 3
2- 4
2- 5
2- 5
2- 6
2- 6
2- 6
2- 6
2- 7
2- 7
2 -10
2 -10
Part 2: PRODUCT SPECIFICATIONS
1. PRODUCT OUTLINE
1.1 Outline
1.2 Features
1.3 BJ Cartridge
1.3.1 Black BJ cartridge (BC-60)
1.3.2 Photo BJ cartridge (BC-62e Photo)
1.3.3 Color BJ cartridge (BC-61)
1.3.4 BJ cartridge vs print mode
1.4 SB-60 BJ Cartridge Container
1.5 Consumables
1.5.1 BJ cartridge
1.5.2 Ink tank
2. SPECIFICATIONS
2.1 General Specifications
2.2 Paper Specifications
2.2.1 Paper types
II
Page
2 -11
2 -12
2.2.2 Printing range
2.3 Interface Specifications
Part 3: OPERATING INSTRUCTIONS
3- 1
3- 1
3- 2
3- 3
3- 3
3- 3
3- 4
3- 6
3- 7
3- 8
3- 8
3- 8
3- 9
3 -10
3 -12
3 -12
3 -13
3 -14
3 -14
3 -14
3 -15
3 -16
3 -17
3 -17
3 -18
3 -19
3 -19
3 -20
3 -20
3 -21
3 -22
3 -22
3 -23
3 -23
3 -24
1. PRINTER SETUP
1.1 Unpacking
1.2 Installation Location
1.3 Installation
1.3.1 Connecting the interface cable
1.3.2 Connecting the power supply
1.3.3 Installing the BJ cartridge
1.3.4 Replacing the ink tanks
1.3.5 Cartridge container [SB-60]
1.4 Turning Printer Power On and Off
1.4.1 Turning the power on
1.4.2 Turning the power off
1.5 Loading Printer Paper
1.6 Names of Parts and Their Functions
2. TRANSPORTING THE PRINTER
2.1 Transporting the Printer
2.2 Manual Capping
3. PRINTER SERVICING FUNCTIONS
3.1 Error Indications
3.1.1 Operator call errors
3.1.2 Service calls
3.2 Warning Indications
3.3 Function Settings
3.3.1 Items set by control function
3.3.2 Service mode of printer driver
3.4 EEPROM
3.5 Cleaning the BJ Cartridge
3.6 Test Printout
3.7 Pickup Roller Cleaning Function (HR-101)
3.8 Service Mode
3.8.1 Final factory test pattern
3.8.2 Resetting EEPROM data
3.8.3 Printing EEPROM data
3.8.4 Setting destination country
3.8.5 Other Function
444444444444-
1. OVERVIEW
1.1 Printer Block Diagram
1.2 Initial Flowchart
1.3 Print Signal Sequence
1.4 BJ Cartridge Drive
1.4.1 Print drive control
1.5 Power-Off Sequence Flowchart
2. FIRMWARE
2.1 Interface
2.1.1 Compatible mode
2.1.2 Nibble mode
2.1.3 ECP mode
Part 4: TECHNICAL REFERENCE
1
1
2
3
4
4
5
6
6
6
7
7
III
Page
4- 8
4- 9
4- 9
4- 9
4- 9
4 -10
4 -11
4 -11
4 -11
4 -11
4 -11
4 -12
4 -13
4 -13
4 -14
4 -15
4 -15
4 -19
4 -21
4 -22
4 -24
4 -28
4 -29
4 -29
4 -30
4 -33
4 -33
4 -34
4 -36
4 -36
4 -38
4 -39
4 -39
4 -40
4 -40
4 -41
4 -45
4 -45
4 -45
4 -46
4 -46
4 -48
4 -48
4 -48
4 -48
2.2 Print Modes
2.2.1 Plain paper optimized printing mode (P-POP)
2.2.2 Economy print mode (Draft mode)
2.2.3 Standard mode
2.2.4 High quality and fine mode
2.2.5 Print mode settings
2.3 Smoothing Function
2.4 Print Optimization Controls
2.4.1 Power monitor
2.4.2 Head sticking prevention
2.4.3 Ink smear prevention
2.5 Head Overheat Protection
3. PRINTER'S MECHANICAL SYSTEM
3.1 Overview
3.1.1 Structure of printer's mechanical system
3.2 BJ Cartridge
3.2.1 BJ Cartridge structure
3.2.2 Structure of BJ head unit
3.2.3 Nozzle arrays
3.2.4 Signal contacts
3.2.5 Drive circuit
3.2.6 BJ cartridge detection
3.3 Purge Unit
3.3.1 Function of purge unit
3.3.2 Structure of purge unit
3.4 Carriage
3.4.1 Carriage functions
3.4.2 Carriage structure
3.5 Paper Feed/Sheet Feeder Mechanism
3.5.1 Paper feed/sheet feeder mechanism functions
3.5.2 Paper feed/sheet feeder mechanism structure
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
4.2 Logic
4.2.1 Logic block diagram
4.2.2 Logic components
4.3 Electrical System
4.3.1 Input power supply (AC adaptor)
4.3.2 Output voltages
5. DETECTION FUNCTIONS
5.1 Sensor-based Detection Functions
5.2 Miscellaneous Detection Functions
5.2.1 Waste-ink amount detection
5.2.2 BJ cartridge detection
5.2.3 Ink-out detection
Part 5: MAINTENANCE
555555-
1
1
1
1
1
2
1. MAINTENANCE
1.1 Parts for Periodic Replacement
1.2 Consumable Parts
1.3 Consumables
1.4 Periodic Maintenance
2. SERVICING TOOLS
IV
Page
5- 2
5- 3
5- 4
5- 4
5- 4
5- 4
5- 4
5- 5
5- 5
5- 5
5- 6
5- 7
5- 8
5- 8
5- 8
5- 8
5 -13
5 -13
5 -13
5 -13
5 -14
5 -14
5 -16
5 -37
5 -37
5 -39
5 -44
5 -44
5 -44
5 -45
5 -47
5 -47
2.1 List of Tools
3. APPLYING GREASE
4. DISASSEMBLY AND REASSEMBLY
4.1 Disassembly and Reassembly
4.2 Notes on Disassembly and Reassembly
4.2.1 Main cover
4.2.2 Carriage unit
4.2.3 Bearings at ends of support shaft
4.2.4 Purge unit and bottom case assembly
4.2.5 Securing idler pulley assembly screw
4.3 Waste Ink Absorbers
4.4 Assembling the Chassis
5. ADJUSTMENTS
5.1 Adjustment Locations
5.1.1 Adjusting registration
5.1.2 Checking and adjusting the head gap
6. TROUBLESHOOTING
6.1 Troubleshooting Overview
6.1.1 Overview
6.1.2 Troubleshooting cautions
6.2 Diagnosis
6.2.1 Diagnostic flow
6.2.2 Action
7. CONNECTOR LAYOUT AND SIGNAL ASSIGNMENT
7.1 Logic Board
7.2 Carriage Board
8. CIRCUIT DIAGRAMS
8.1 Parts Layout
8.1.1 Logic board
8.1.2 Carriage board
8.2 Circuit Diagrams
8.2.1 Logic board
V
III. ILLUSTRATION INDEX
Part 1: SAFETY AND PRECAUTIONS
Page
1- 1
1- 2
1- 3
1- 4
1- 4
1- 5
1- 6
1- 7
1- 8
1- 9
1- 9
1 -10
1 -10
1 -11
1 -11
1 -13
1 -14
1 -15
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
2- 1
2- 3
2- 4
2- 5
2- 6
2- 6
2 -11
2 -18
2 -18
2 -18
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
3- 1
3- 2
3- 3
3- 3
3- 4
3- 4
3- 5
3- 6
3- 6
3- 7
3- 8
3- 9
3 -10
3 -11
3 -12
3 -13
3 -14
3 -17
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
1- 1
1- 2
1- 3
1- 4
1- 5
1- 6
1- 7
1- 8
1- 9
1 -10
1 -11
1 -12
1 -13
1 -14
1 -15
1 -16
1 -17
1 -18
The Printer's Moving Parts
Front Cover
Ink Path
BC-62e Photo and BC-61
Ink Mist
AC Adapter
BJ Cartridge Metal Plate
Removing the BJ Cartridge Cap and Tape
BJ Cartridges
Removing the Ink Tank Cap
The Ink Outlets on Ink Tank
Spurs
Contacts
Capping Position
Carrying the Printer
Protecting the Power Supply
Electrical System of Printer
Parts that Cannot be Disassembled
Part 2: PRODUCT SPECIFICATIONS
2- 1
2- 2
2- 3
2- 4
2- 5
2- 6
2- 7
2- 8
2- 9
2 -10
Printer Appearance
Black BJ Cartridge (BC-60)
Photo BJ Cartridge (BC-62e Photo)
Color BJ Cartridge (BC-61)
BJ Cartridge (SB-60)
Ink Tanks
Printing Area
Compatible Mode
Nibble Mode
ECP Mode
Part 3: OPERATING INSTRUCTIONS
3- 1
3- 2
3- 3
3- 4
3- 5
3- 6
3- 7
3- 8
3- 9
3 -10
3 -11
3 -12
3 -13
3 -14
3 -15
3 -16
3 -17
3 -18
Packaging
Printer Dimensions
Connecting the Interface Cable
Connecting the Power Supply
Removing Cap and Tape from BJ Cartridge
Installing BJ Cartridges
Checking Print Head Alignment
Replacing the Ink Tank
Removing Protective Cap from Ink Tank
Cartridge Container SB-60
Incorrect Method of Powering Off
Paper Settings
Names of Parts and Their Functions (1)
Names of Parts and Their Functions (2)
Transporting the Printer
Manual Capping Method
Control Panel
Windows 95 Driver Control Sheet (Sample)
VI
Page
3 -18
3 -20
3 -22
3 -23
Figure
Figure
Figure
Figure
4- 1
4- 2
4- 3
4- 5
4- 6
4- 6
4- 7
4- 7
4- 9
4 -10
4 -11
4 -13
4 -15
4 -16
4 -17
4 -19
4 -19
4 -20
4 -21
4 -22
4 -24
4 -25
4 -32
4 -33
4 -35
4 -36
4 -37
4 -38
4 -39
4 -40
4 -43
4 -44
4 -45
4 -46
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
55555555555-
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
3 -19
3 -20
3 -21
3 -22
Hidden Control Sheet (Sample)
Nozzle Check Pattern (Sample)
Service Mode Test Print (Sample)
EEPROM Data Print (Sample)
Part 4: TECHNICAL REFERENCE
4- 1
4- 2
4- 3
4- 4
4- 5
4- 6
4- 7
4- 8
4- 9
4 -10
4 -11
4 -12
4 -13
4 -14
4 -15
4 -16
4 -17
4 -18
4 -19
4 -20
4 -21
4 -22
4 -23
4 -24
4 -25
4 -26
4 -27
4 -28
4 -29
4 -30
4 -31
4 -32
4 -33
4 -34
Printer Block Diagram
Flowchart of Initialization Sequence
Print Signal Sequence
Power-Off Sequence Flowchart
Bidirectional Centronics Specifications Selection Sequence
Interface Timing (Compatible Mode)
Interface Timing (Nibble Mode)
Interface Timing (ECP Mode)
Photo Print Mode (Image)
Print Mode Main Sheet (Sample)
Print Mode Detail Quality Sheet (Sample)
Printer's Mechanical System
Structure of BC-60
Structure of BC-61
Structure of BC-62e Photo
Structure of BC-60 BJ Head Unit
Structure of BC-61 BJ Head Unit
Structure of BC-62e Photo BJ Head Unit
Nozzle Arrays
Signal Contacts
Block Diagram of BC-60 Drive Circuit
Block Diagram of BC-61/BC-62e Photo Drive Circuit
Purge Unit
Carriage
Paper Feed Motor Drive Switching
Auto Platen-Head Gap Adjustment
Paper Feed Mechanism
Paper Separator
Printer Electrical System
Logic Board Block Diagram
Printer Block Diagram
Motor Drive Circuit
AC Adaptor Output Voltages
Sensor Positions
Part 5: MAINTENANCE
3
4
4
5
5
5
6
7
8
9
9
5- 1
5- 2
5- 3
5- 4
5- 5
5- 6
5- 7
5- 8
5- 9
5 -10
5 -11
Grease Points
Main Cover and Connector Cover
Releasing the Carriage Lock
Bearings at Ends of Support shaft
Purge Unit and Bottom Case Assembly
Tightening Idler Pulley Assembly Screw
Maintenance Jet and Waste Ink Absorbers
Tightening the Chassis Fixing Screws
Screws Influencing Head Gap
Measuring Sheet Setting 1
Measuring Sheet Setting 2
VII
Page
5 -10
5 -10
5 -11
5 -12
5 -37
5 -39
5 -44
5 -44
5 -45
5 -45
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
Figure
5 -12
5 -13
5 -14
5 -15
5 -16
5 -17
5 -18
5 -19
5 -20
5 -21
Thickness Gauge Setting
Check the Head Gap
Adjust the Head Gap 1
Adjust the Head Gap 2
Logic Board
Carriage Board
Logic Board (Face)
Component Board (Back)
Carriage Board (Face)
Carriage Board (Back)
VIII
IV. TABLE INDEX
Part 2: PRODUCT SPECIFICATIONS
Page
2- 5
2 -10
2 -12
2 -13
2 -13
Table
Table
Table
Table
Table
3- 9
3 -14
3 -15
3 -21
Table
Table
Table
Table
22222-
1
2
3
4
5
BJ Cartridge vs Print Mode
Paper Specifications
IO Signals Compatible Mode
IO Signals in Nibble Mode
IO Signals in ECP Mode
Part 3: OPERATING INSTRUCTIONS
3333-
1
2
3
4
Printer Paper Settings
Operator Calls
Service Calls
Service Mode
Part 4: TECHNICAL REFERENCE
4- 8
4 -10
4 -22
4 -27
4 -27
4 -28
4 -28
4 -30
4 -48
Table
Table
Table
Table
Table
Table
Table
Table
Table
5 -39
Table
444444444-
1
2
3
4
5
6
7
8
9
Number of Passes vs Number of Operational Head Nozzles
Main Default Print Mode Settings
BJ Head Input and Output Signals
AND Gate Contacts and IDATA Order
Electrode Connection Pins
Index Connections
Index Sensor Signals and BJ Cartridge Detection
Cleaning Conditions and Ink Consumption (Average)
Ink-out Detection Timing
Part 5: MAINTENANCE
5- 1
Contacts (DARK COL and LIGHT COL)
IX
Part 1
SAFETY AND
PRECAUTIONS
Page
1- 1
1- 1
1- 2
1- 3
1- 5
1- 6
1- 7
1- 7
1- 9
1 -10
1 -12
1 -12
1 -13
1 -13
1 -14
1 -15
1 -15
1. SAFETY PRECAUTIONS
1.1 Moving Parts
1.2 Front Cover
1.3 Ink Stains
1.4 Live Parts
1.5 BJ Cartridge Metal Plate
2. MACHINE PRECAUTIONS
2.1 BJ Cartridge Handling
2.2 Ink Tank Handling
2.3 Printer Handling
3. NOTES ON SERVICING
3.1 EEPROM Data
3.2 Service Mode of Printer Driver
3.3 Protecting the Power Supply
3.4 Static Electricity
3.5 Disassembly and Assembly
3.6 Self-Diagnosis
Part 1: Safety and Precautions
BJC-7100
1. SAFETY PRECAUTIONS
1.1 Moving Parts
Be careful not to let your fingers, hair, clothing, accessories, etc., become caught up in
the moving parts of the printer.
There are moving parts associated with the carriage motor and paper feed motor.
Carriage motor
Carriage belt, idler pulleys, and carriage
Paper feed motor
Paper feed roller, pressure rollers, spurs, pick-up roller, slow down gear, paper output
guide, and purge unit.
Be sure that the front cover is closed so that there is no risk of contacting the moving
parts, except when checking operation during servicing.
Note that the spurs are made of metal with a sharp edge. Be careful not to touch the
spurs with your bare hands.
Pickup Roller
Carriage
Carriage Belt
Idler Pulley
Paper Feed Motor
Slow Down Gear
Carriage Motor
Purge Unit
Spur Unit
Page Eject Roller
Feed Roller
Pressure Roller
Figure 1-1 The Printer's Moving Parts
1-1
Part 1: Safety and Precautions
BJC-7100
1.2 Front Cover
Hold the front part of the front cover to open and close the cover.
Be careful not to pinch your fingers between the front and main cover when closing the
front cover.
Figure 1-2 Front Cover
1-2
Part 1: Safety and Precautions
BJC-7100
1.3 Ink Stains
1.3.1 Ink path
Be careful not to touch the ink path as it may stain your hands, clothes, printer, work
table etc., during servicing.
The ink path consists of the BJ cartridge nozzles, head cap, waste ink tube, head
wiper, cleaner unit, maintenance jet receiving section, and waste ink absorber.
CAUTION
Although the ink and ink optimizer for plain paper are not harmful to the
human body, they contain organic solvents indicated on the package.
Avoid getting the ink into your mouth and eyes, and store out of reach of
children.
If ink does get into your eyes, wash with plenty of water and consult a
doctor. If for some reason a large amount of ink is swallowed, consult a
doctor immediately.
Give the doctor the information on the BJ cartridge package.
This ink contains dyes, that cannot be removed from clothing, etc.
BJ Cartridge
Carriage
Wiper for Plain Paper
Ink Optimizer
Color: Photo Head (Nozzles)
Black: Ink Optimizer Head (Nozzles)
Maintenance Jet Receiving
Section for Plain Paper
Ink Optimizer
Cleaner Unit
Head Cap
Maintenance Jet
Receiving Section
for Ink
Purge Unit
Maintenance Jet Absorber
for Plain Paper Ink Optimizer
Waste Ink Tube
Head Wiper
Maintenance Jet
Absorber for Ink
Waste Ink & Waste Ink Optimizer Absorber
Figure 1-3 Ink Path
1-3
Part 1: Safety and Precautions
BJC-7100
The joints and ink outlets of the respective ink tanks of the photo BJ cartridge [BC62e Photo] and color BJ cartridge [BC-61] are also part of the ink path and must be
handled with care.
Unless absolutely necessary, do not remove the ink tanks from a BJ cartridge, since
air may enter the ink path and have a negative effect on print quality.
Ink Outlets
Ink Outlets
Joints
Joints
Head (Nozzles)
Head (Nozzles)
BC-62e Photo
BC-61
Figure 1-4 BC-62e Photo and BC-61
The BJC-7100 uses a variety of inks and an ink optimizer for printing on
plain paper. The ink optimizer is an almost colorless, transparent fluid.
We will refer to the ink optimizer for plain paper simply as ink optimizer or
just optimizer for simplicity purposes. We will also refer to the various
colored inks and the ink optimizer for plain paper simply as "inks".
1.3.2 Ink mist
The BJ cartridge ejects ink onto the paper. After prolonged or heavy-duty use of the
printer, a small amount of ink mist splattered during printing can dirty the printer
such as the platen.
Turn off the power, open the front cover, and clean the dirty parts with a soft moist
cloth. This is to prevent dirtying the paper, your hands, and clothing from touching
these parts.
Front Cover
Platen
Paper Output
Figure 1-5 Ink Mist
1-4
Part 1: Safety and Precautions
BJC-7100
1.4 Live Parts
When the plug of the printer's AC adapter is plugged into a live power outlet, the power
supply unit of the printer is live regardless of the power being set to ON or OFF using
the POWER button.
Be careful not to get on electric shock if you are checking the printer operation with the
covers off.
CAUTION
Do not attempt to dismantle the AC adapter. The mains AC voltage is
supplied to the primary side of the AC adapter. To prevent risk of electric
shock, do not attempt to dismantle the AC adapter to check its operation,
etc.
Figure 1-6 AC Adapter
If faulty, the AC adapter must be replaced as one unit (service part). The
structural components, including the case, are not available individually
as service parts. Do not attempt to dismantle the AC adapter.
1-5
Part 1: Safety and Precautions
BJC-7100
1.5 BJ Cartridge Metal Plate
Do not touch the BJ cartridge's metal plate as it may be very hot. The metal plate
heats up during printing and becomes particularly hot during heavy duty printing.
CAUTION
Danger! High Temperature!
Do not touch.
Metal Plate
Figure 1-7 BJ Cartridge Metal Plate
The printer has the following protective mechanisms to detect overheating:
1. Overheat detection when replacing cartridge
If overheating is detected, a beeper sounds four times and the carriage
does not return to the replacement position. This is to prevent the user
from touching the BJ cartridge's metal plate.
Resume the cartridge replacement after leaving the cartridge to cool for
several minutes.
2. Overheat detection during normal printing
The carriage movement and the paper eject operation are continued
while the printing is stopped. Depending on the outcome of the ink-out
detection after completion of printing a page, a beeper sounds to
indicate the status of the error.
Ink available: BJ cartridge overheat error (beeper sounds 7 times)
Ink out: Ink-out error (beeper sounds 3 or 4 times)
When a BJ cartridge overheat error occurs, leave the cartridge to cool
for several minutes then press the RESUME button.
These protective mechanisms are based on the temperatures detected by
the sensors in the BJ head.
If the protective mechanism is activated and normal operation cannot be
resumed after cooling the head for several minutes, see "Part 5: 6.
TROUBLESHOOTING" (page 5-13).
For details of ink-out detection, see "Part 4: 5.2.3 Ink-out detection" (page 4-48).
1-6
Part 1: Safety and Precautions
BJC-7100
2. MACHINE PRECAUTIONS
2.1 BJ Cartridge Handling
2.1.1 Unpacking the BJ cartridge
Do not unpack the BJ cartridge until you are ready to use it.
Before installing the BJ cartridge in the printer, remove the cap protecting the nozzles
and gently peel off the protective tape.
Do not attempt to reuse the cap or the tape after they have been removed, as doing so
may cause faulty printing.
BC-60
BC-62e Photo
BC-61
Protective Tape
Head Cap
Figure 1-8 Removing the BJ Cartridge Cap and Tape
If you replace the cap on the color BJ cartridge or photo BJ cartridge, the
sponge in the cap may cause the colors to bleed into each other. The
nozzles may also become clogged.
Always move the carriage to the BJ cartridge replacement position before
attempting to remove or install a cartridge. Failure to do so may result in
damage to the BJ cartridge.
2.1.2 BJ cartridge protection
To prevent the nozzles from clogging, never touch or wipe the nozzles, joint pipes, or
ink tank outlets with your bare hands or with tissue paper, etc. After removing the
cap and peeling off the protective tape from a BJ cartridge, promptly install the
cartridge in the printer or store it in the cartridge holder. If the BJ cartridge is not
capped or stored in the cartridge holder, the nozzles may clog due to dried out ink or
dust, etc.
Do not attempt to leave color BJ cartridges or photo BJ cartridges with their ink tanks
removed.
BJ cartridges cannot be disassembled, reassembled, or washed.
Clogged nozzles cause faulty printing. If this problem persists even after
the nozzles are cleaned, replace the BJ cartridge.
1-7
Part 1: Safety and Precautions
BC-60
BJC-7100
BC-61
BC-62e Photo
Ink Outlets
Ink Outlets
Joints
Joints
Figure 1-9 BJ Cartridges
2.1.3 Power on/off
When the printer is turned off with the POWER button, the printer automatically caps
the BJ cartridge's nozzles for protection and to prevent ink leakage.
If the AC adapter is unplugged before the printer is turned off with the POWER
button, the nozzles may not be capped. In this case, plug the AC adapter again, start
up the printer and turn off the printer with the POWER button before unplugging the
power cord. Note that, if you unplug the power during the recovery operation and
then leave the printer, the purge unit may be damaged.
If the nozzles are not capped, the ink might dry out and clog the nozzles or
leak from the cartridge.
2.1.4 When not using the printer
Keep the BC-60 BJ cartridge installed in the printer even when the printer is not in
use. The BC-62e Photo and BC-61 BJ cartridges can be left installed in the printer or
stored in the cartridge holder. This also applies when carrying, transporting, or
storing the printer.
If the BJ cartridge is taken out of the printer, dried ink or dust may clog
the nozzles, resulting in inconsistent printing.
If the printer is moved or transported with no cartridge installed, ink may
leak from the cap mechanism.
1-8
Part 1: Safety and Precautions
BJC-7100
2.1.5 Ink electroconductivity
The ink used in the BJ cartridge can conduct electricity. If any ink leaks into the
printer's mechanical parts, use paper towels, etc., to wipe clean. If the ink leaks onto
the printer's electrical components, use tissue paper, etc., to wipe clean. If the ink
gets to the IC chips on the PCB, or if it is too difficult to thoroughly clean off the ink,
replace the respective parts.
Never connect the printer's power cord if ink has leaked inside the printer.
It may damage the circuitry.
2.2 Ink Tank Handling
2.2.1 Unpacking the ink tank
Do not unpack the ink tank until you are ready to use it.
Before installing it in the color BJ cartridge, remove the cap covering the ink outlets.
Figure 1-10 Removing the Ink Tank Cap
2.2.2 Preventing clogging
To prevent poor ink suction due to clogging of the joints in the BJ cartridge, never
touch the ink tank's ink outlets. After removing the cap from the ink tank, promptly
install the ink tank in the BJ cartridge to prevent the nozzles from clogging due to
dried-out ink, dust, etc. Do not remove an ink tank from a BJ cartridge unless you
are replacing it.
BCI-62 Photo
BCI-61 Color
Photo Cyan Ink Outlet
Photo Magenta Ink Outlet
Photo Yellow Ink Outlet
Cyan Ink Outlet
Magenta Ink Outlet
Yellow Ink Outlet
Yellow Ink Outlet
Magenta Ink Outlet
Cyan Ink Outlet
Figure 1-11 The Ink Outlets on Ink Tank
1-9
Part 1: Safety and Precautions
BJC-7100
2.3 Printer Handling
2.3.1 Spurs
Take care not to bend the tips of the spurs.
The spurs that transport and eject the paper after printing are very small and can
easily be deformed.
If a spur is deformed, its contacting surface with the printed paper increases, creating
a dotted line.
Double Spurs
Spur Cleaner
Spurs
Figure 1-12 Spurs
2.3.2 Damage due to static electricity
The static charge accumulated by your body from clothing can damage electrical
components and alter their electrical characteristics.
Never touch the carriage contacts or BJ cartridge contacts.
Contacts
Figure 1-13 Contacts
1-10
Part 1: Safety and Precautions
BJC-7100
2.3.3 Ink leakage and dry-out
Make sure a BJ cartridge is installed before turning off the power, using the POWER
button.
When you turn off the printer using the POWER button, the printer automatically
performs the following operations:
Cleaning
Any ink left in the purge unit or in the nozzles of the BJ cartridge is removed.
Capping
To prevent ink dry-out, the BJ cartridge's nozzles are capped automatically and the
carriage is locked in position.
If you unplug the AC adapter by mistake, plug the power cord again, turn the power
on and then off again using the POWER button, then unplug the AC adapter.
If you turn the power off or unplug the AC adapter when the BJ cartridge has been
removed, the nozzles will not be automatically capped or the carriage locked in
position, and hence there is a risk of ink leaking or dry-out.
BJ Cartridge
Head Cap
Figure 1-14 Capping Position
If the power cannot be turned on due to some failure, manually move the
carriage belt or the carriage itself to the capping position. For details, see
"Part 3: 2.2 Manual Capping" (page 3-13).
2.3.4 Carrying the printer
Hold both sides of the bottom of the printer to carry it. Note that inserting your hand
into the paper outlet may dislodge or damage the paper guides.
Figure 1-15 Carrying the Printer
1-11
Part 1: Safety and Precautions
BJC-7100
3. NOTES ON SERVICING
3.1 EEPROM Data
The printer stores the function settings and keeps track of various information
including the total sheets printed, the number of cartridge replacements, the total
waste ink amount, and the head position adjustment values. The data is stored in the
EEPROM on the logic board.
Note the following precautions during servicing:
1) Before servicing
You can check the EEPROM data with a test print. The total sheets printed can give
you an idea of how much the printer has been used.
2) During logic board replacement
Always replace the waste ink absorber when replacing the EEPROM.
If you do not replace the waste ink absorber, the data on waste ink amount will differ
from the amount of ink that can be absorbed by the waste ink absorber. There is
therefore a risk of ink leaking.
When replacing the logic board, be sure to reset all the data. Because the data on
new EEPROMs is undefined, they cannot be used until they are reset. For details of
handling EEPROMs, see "Part 3: 3.4 EEPROM" (page 3-19).
3) After waste ink absorber replacement
After replacing full waste ink absorbers, reset the EEPROM's waste ink counter.
4) If you accidentally reset the EEPROM's waste ink amount data or all data
Once reset, the EEPROM data cannot be restored. If you accidentally reset the
EEPROM, you must take the same steps as when replacing the logic board.
After the EEPROM is reset, the data it contained cannot be printed out
with a test print. If you want to check the stored data, be sure to make a
test print before resetting the EEPROM.
Note that you cannot reenter the data from the printer's control panel or
by using a computer.
If the EEPROM is faulty, or all data is reset, all data is lost. Whenever
possible, restore all data such as the head alignment to the user's
settings.
During operation, the waste ink amount (EEPROM data) is automatically
updated. An error message is displayed and operation halted when the
waste ink absorber is nearly full. If this occurs, refer to "Part 5: 6.
TROUBLESHOOTING" (page 5-13).
See "Part 3: 3.8.3 Printing EEPROM data" (page 3-23) for how to make a test
print of the stored data.
You can choose to either reset the waste ink counter or all data. See "Part
3: 3.8.2 Resetting EEPROM data" (page 3-22) for details.
1-12
Part 1: Safety and Precautions
BJC-7100
3.2 Service Mode of Printer Driver
There are certain printer driver control functions, described below, that are, in
principle, hidden from the end user. These service mode functions, which must be
used with caution, are provided for service purposes only.
See "Part 3: 3.3.2 Service mode of printer driver" (page 3-18) for details.
3.3 Protecting the Power Supply
The power supply for the BJC-7100 printer consists of an AC adapter and a power supply
circuit on the logic board. Provided the AC supply is connected, the printer power supply
is live whether or not the power is set ON or OFF using the POWER button.
Always unplug the AC adapter from the power outlet before connecting it to or
disconnecting it from the printer. Ignoring this warning can result in damage and
failure of the printer power supply.
STEP 1-1
USA Only
or
STEP 2
STEP 1-2
Figure 1-16 Protecting the Power Supply
When moving the carriage by hand when, for example, manually capping the
ink nozzles or releasing the carriage lock, do so slowly while paying attention
to the operation of the carriage motor; the back electromotive force generated
by moving the carriage horizontally may damage the motor control board.
If it is necessary to move the carriage horizontally fairly frequently, such
as when replacing or adjusting the carriage, temporarily disconnect the
carriage motor connector from the control board.
1-13
Part 1: Safety and Precautions
BJC-7100
3.4 Static Electricity
The electrostatic charge accumulated in clothing can damage electrical components
and alter their electrical characteristics.
Before disassembling the printer to service it, use a wriststrap or other grounded metal
object to discharge the static electricity. The following parts must not be touched
before you have discharged the static electricity from your body:
• Logic board, carriage board
• Motor control board
• Cable connectors and contacts
• BJ cartridge signal contacts
Static Damage!
Carriage Board
Carriage Motor
BJ Cartridge Signal Contacts
Logic Board
Paper Feed Motor
Figure 1-17 Electrical System of Printer
1-14
Part 1: Safety and Precautions
BJC-7100
3.5 Disassembly and Assembly
3.5.1 Parts that cannot be disassembled
Do not disassemble the ribbon cable to the head on the carriage unit. The position in
relation to the contacts with the BJ cartridge is factory adjusted, and cannot be
readjusted during printer servicing.
In addition, do not attempt to disassemble the AC adapter, BJ cartridge, or ink tanks.
In principle, do not loosen any of the screws painted red in the printer mechanism
(except when adjusting the head gap using the jig). The red screws hold the adjustable
plate that determines the gap between the nozzles of the BJ cartridge and the platen.
This gap is adjusted to the optimal value when the printer leaves the factory.
AC Adapter
Red Screw
Head Alignment Adjuster Plate
Carriage Unit
Red Screw
BJ Cartridge
Head Alignment Adjuster Plate
Ink Tank
Figure 1-18 Parts that Cannot be Disassembled
In addition to the above, do not attempt to disassemble any parts not
shown disassembled in the exploded diagrams in the parts catalog.
Failure to observe this warning may result in those parts not functioning
as originally intended after they are reassembled.
3.5.2 Parts requiring careful attention during disassembly and assembly
The printer has many parts that can be damaged during disassembly and assembly.
For details, see "Part 5: 4. DISASSEMBLY AND REASSEMBLY" (page 5-4). Please read
this section carefully before attempting to disassemble and assemble the printer.
The printer also has many plastic parts. When disassembling the printer, take care
not to break or bend the plastic hooks.
Some plastic parts contain glass fibers for extra rigidity and precision, but
since their viscosity is low, the plastic hooks can break easily when
excessive force is used. Do not pull a plastic hook with excessive force
while unhooking it.
3.6 Self-Diagnosis
The printer has a self-diagnosis feature to detect hardware defects. The results of the
self-diagnosis are indicated on the LED on the control panel, and by the beeper. For
details, see "Part 3: 3.1 Error Indications" (page 3-14).
1-15
Part 1: Safety and Precautions
BJC-7100
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1-16
Part 2
PRODUCT
SPECIFICATIONS
Page
2- 1
2- 1
2- 2
2- 3
2- 6
2- 6
2- 7
2- 7
2 -10
2 -12
1. PRODUCT OUTLINE
1.1 Outline
1.2 Features
1.3 BJ Cartridge
1.4 SB-60 BJ Cartridge Container
1.5 Consumables
2. SPECIFICATIONS
2.1 General Specifications
2.2 Paper Specifications
2.3 Interface Specifications
Part 2: Product Specifications
BJC-7100
1. PRODUCT OUTLINE
1.1 Outline
The BJC-7100 is a personal desktop color bubble-jet printer that uses a new 600dpi BJ
cartridge and technology to achieve outstanding print quality and photographic
realism. The printing process uses an ink optimizer to enable water resistance printing
on plain paper.
The BJC-7100 printer uses new accurate photo BJ cartridge BC-62e Photo and new
paper eject mechanisum to achieve high speed printing with high quality print.
The BJC-7100 printer, which is easy to operate under Microsoft Windows, and is
compatible with the Internet and multimedia tools such as digital cameras, is targeted
at a wide range of users in the small-office and personal-computer environments who
require high-quality full color printing.
POWER Indicator
ERROR Indicator
REPLACE Button
Paper Guide
Paper Rest
Auto Sheet Feeder
RESUME Button
POWER Button
Paper Output Tray
Cover
BJ Cartridge Container
Manual Feed Guide
Manual Feed Slot
AC Adapter
Figure 2-1 Printer Appearance
The ink optimizer is an almost colorless, transparent fluid. For simplicity
in this manual, we refer to the ink optimizer for plain paper simply as ink
optimizer or just optimizer. We also refer to the various colored inks and
the ink optimizer for plain paper simply as "inks".
2-1
Part 2: Product Specifications
BJC-7100
1.2 Features
1. The new 600dpi BJ cartridge provides high-resolution printing at up to 1200 (H) ×
600 (V) dpi when using the exclusive printer driver.
There are three types of new BJ cartridge: BC-60, BC-62e Photo, and BC-61. (Note
that the BJ cartridge configuration differs according to the country.)
2. The printer is equipped with two BJ cartridges.
The BC-60 is normally installed in the printer and either the BC-62e Photo or BC-61
is installed as required for the type of printing to be carried out.
3. The print process uses an ink optimizer to enable maximum water resistance when
printing on plain paper (and envelopes).
In this new printing process, the surface of the paper is coated with the ink optimizer
prior to being printed. The ink optimizer is discharged from the special BJ head of
the BC-60.
4. The straight manual insertion path allows printing on a wide variety of papers.
In addition, the automatic platen-head adjustment mechanism obviates the need for
levers for selecting papers and platen-head gap.
5. The printer performs high speed print; HQ: 5.8ppm, HS: 7.6ppm (BK; PC magazine)
6. The printer is equipped with an ink-out detection function based on the conduction
of static electricity.
An electrical signal is input to the ink path in the BJ cartridge. This signal is picked
up by the electrode on the carriage, and the signal level is used to determine the
existence or absence of ink.
7. The printer is equipped with an IEEE1284-compatible bidirectional parallel interface.
This interface is compatible with nibble mode and ECP mode.
8. The built-in control mode is the Canon extended mode.
The host computer sends print signals in Canon extended mode, generated by the
special printer driver.
9. The printer is supplied with Windows 3.1, Windows 95 and Windows 98 special
printer driver.
10. The printer is powered by an AC adaptor, installed by manufucturing.
The ink optimizer printing process can be used in both monochrome and
color printing when the printer driver is set to plain paper (including
postcards and envelopes) in all but Draft mode. It cannot be used if the
driver is set to other than plain paper (special papers and film, etc.).
The ink-out detection mechanism confirms that the BJ cartridge is out of
ink. The mechanism does not measure the amount of ink remaining in
the cartridge and therefore does not necessarily indicate an error at the
point where print quality deteriorates as the ink runs out.
2-2
Part 2: Product Specifications
BJC-7100
1.3 BJ Cartridge
1.3.1 Black BJ cartridge (BC-60)
The BC-60 BJ cartridge is used for monochrome printing and for printing using the
ink optimizer. It is a head and ink tank integrated type, disposable BJ cartridge
consisting of a unified BJ head and ink tanks for black ink and ink optimizer.
There are two parallel BJ heads, each with 304 nozzles. One head supplies ink while
the other supplies the ink optimizer.
Replace the BJ cartridge if either the black ink or ink optimizer runs out, or if
satisfactory printing cannot be achieved even after the stipulated cleaning operations
have been performed. Also replace the cartridge if more than 12 months has elapsed
after the seal is broken.
The BC-60 BJ cartridge will print approximately 870 pages of a standard 1500character print pattern (Default setting of Text mode).
1
2 N.C.
3
5
25 23 24
9
6
19 22 2021
11 10 12
18 16 17
14 15 13
13 15 14
17 16 18
12 10 11
2021
, 22 19
24 23 25
27 26 N.C.
View
Figure 2-2 Black BJ Cartridge (BC-60)
2-3
N.C. 26 27
4
7,8
6
9 7,,8
5
3
N.C. 2
1
4
Part 2: Product Specifications
BJC-7100
1.3.2 Photo BJ cartridge (BC-62e Photo)
The BJ head for the BC-62e Photo has been modified to considerably improve the ink
jet emission precision.
The BC-62e Photo BJ cartridge is used for photo-realism (super photo mode) (when
printing photographs with substantial numbers of half-tones and light colors). The
cartridge consists of a main unit that separates the BJ heads, and disposable ink
tanks (BCI-62 photo).
There are two parallel BJ heads, each with 240 nozzles. One head supplies color inks
while the other supplies photo inks. Both BJ heads have three vertical rows of 80
nozzles each for yellow, magenta, and cyan.
The total 6 ink tanks for color and photo inks are integrated.
The BC-62e Photo BJ cartridge works by layering the photo inks, which are about
1/3rd the density of the color inks, thereby enabling pale colors and halftones to be
printed. The color inks are used to print denser colors and fill larger areas with one
color.
Replace the ink tanks if any of the 6 inks runs out, or if satisfactory printing cannot
be achieved even after the stipulated cleaning operations have been performed. If you
still cannot obtain satisfactory print quality, replace the BJ cartridge. Also replace the
cartridge if more than 12 months has elapsed after the seal is broken. (Replace the
ink tank 6 months after the seal is broken.)
The BC-62e Photo BJ cartridge will print approximately 90 pages per tank of a
standard photo print pattern (Reference data).
1
2 N.C.
N.C. 26 27
4
3
5
7,8
9
6
19 22 2021
,
11 10 12
18 16 17
14 15 13
13 15 14
17 16 18
12 10 11
2021
, 22 19
24 23 25
27 26 N.C.
25 23 24
6
9 7,8
5
3
N.C. 2
1
4
View
Figure 2-3 Photo BJ Cartridge (BC-62e Photo)
2-4
Part 2: Product Specifications
BJC-7100
1.3.3 Color BJ cartridge (BC-61)
The BC-61 BJ cartridge is used for color printing (denser colors and filling larger
areas with color). The cartridge consists of a main unit that separates the BJ heads,
and disposable ink tanks (BCI-61 Color).
The BJ head has 240 nozzles supplying the color inks. There are three vertical rows
of 80 nozzles each for yellow, magenta, and cyan. The 3 ink tanks are integrated.
Replace the ink tanks if any of the 3 inks runs out, or if satisfactory printing cannot
be achieved even after the stipulated cleaning operations have been performed. If you
still cannot obtain satisfactory print quality, replace the BJ cartridge. Also replace the
cartridge if more than 12 months has elapsed after the seal is broken. (Replace the
ink tank 6 months after the seal is broken.) The BC-61 BJ cartridge will print
approximately 275 pages per tank of a standard color print pattern.
1
2 N.C.
4
3
5
7,8
9
6
11 10 12
14 15 13
17 16 18
2021
, 22 19
24 23 25
27 26 N.C.
View
Figure 2-4 Color BJ Cartridge (BC-61)
1.3.4 BJ cartridge vs print mode
The inks are used in different ways according to the selected print mode, as shown in
the table below.
TABLE 2-1 BJ CARTRIDGE VS PRINT MODE
BC-60
BC-62e Photo
BC-61
Black Ink Ink Optimizer Color Ink Photo Ink Color Ink
Fast
●
✕
●
✕
●
Standard (Fast)
●
▲
●
✕
●
Standard (High Quality)
●
▲
●
✕
●
High Quality
●
▲
●
●
●
Fine
●
▲
●
●
●
●: Used
▲: Used only for plain paper, envelopes
✕: Not used
Print Mode
When you use the BC-62e Photo BJ cartridge to print in color using only the normal
color inks and not the photo inks, the normal color inks will run out and the ink
tanks will have to be replaced before the photo inks are used up.
The estimated print quantity for the BC-60 (approximately 870 pages in
monochrome) is for printing only in monochrome and assumes that the
ink optimizer is not used up by color printing. If the ink optimizer is used
in color printing, the cartridge may not print as many pages and it may be
necessary to replace the BC-60 even if you do not print in monochrome at all.
When handling BJ cartridges and ink tanks, observe the notes in "Part 1:
2.1 BJ Cartridge Handling" (page 1-7).
2-5
Part 2: Product Specifications
BJC-7100
1.4 SB-60 BJ Cartridge Container
The SB-60 cartridge container is for storing the BC-62e Photo or BC-61 BJ cartridge—
whichever is not currently being used.
The SB-60 cartridge container is supplied with the printer, and can also be bought as
optional equipment.
After placing a cartridge in the holder, be sure to close the lid securely. Failure to do so
may result in the nozzles clogging due to dried ink.
The SB-60 cartridge container can be used to store either the BC-62e Photo or BC-61
BJ cartridge. Store either of the cartridges in the holder if you have removed the
protective caps and tape.
The cartridge container can be installed on the printer.
Figure 2-5 BJ Cartridge (SB-60)
Note that the BC-60 cartridge cannot be stored in the SB-60 cartridge
container, and is always installed in the printer.
1.5 Consumables
1.5.1 BJ cartridge
The BJ cartridges (BC-60, BC-62e Photo, and BC-61) used in the BJC-7100 printer
are supplied as consumables. Except for the packaging, these consumables are
identical to the BJ cartridges supplied with the new printer.
The BC-62 Photo used in the BJC-700J Printer cannot be used on this printer. If the
BC-62 Photo is installed on BJC-7100, printing is carried out, however, print quality
may deteriorate drastically.
1.5.2 Ink tank
The BCI-62 Photo ink tank for the BC-62e Photo cartridge, and the BCI-61 Color ink
tank for the BC-61 cartridge are both supplied as consumables.
Always replace the ink tanks if one of the colors runs out, or satisfactory print quality
cannot be achieved even after the stipulated cleaning operations. If, after replacing
the ink tanks, you still cannot obtain satisfactory print quality, replace the BJ
cartridge. Note that the ink tanks can only be used for 6 months after the seal is
broken.
BCI-62 Photo
BCI-61 Color
Figure 2-6 Ink Tanks
2-6
Part 2: Product Specifications
BJC-7100
2. SPECIFICATIONS
2.1 General Specifications
1. Type
Desktop serial color bubblejet printer
2. Operating mode
Canon extended mode
3. Print resolution
1200 (H) × 600 (V) dpi max.
4. Printing speed
Burst (BC-60 monochrome)
HQ: 480cps, HS: 720cps
Throughput
Monochrome printing: HQ: Approx. 5.8ppm, HS: Approx. 7.6ppm
Color printing: HQ: Approx. 0.5 to 2.1ppm, HS: Approx. 1.3 to 4.4ppm,
FINE: Approx. 0.26 to 0.9ppm
HQ:
Default setting of Text mode
HS:
Default setting of Draft mode
FINE:
Default setting of Auto mode
5. Printing width
218mm max. (Maximum print width when Letter+ size is selected)
6. Line pitch
n/600inch (where n is programmable)
7. Print direction
Select either of Unidirectional or BIdirectional as the printing mode. (See "Part 4: 2.2
Print Mode" (page 4-8))
8. Bit image printing
Data matrix: Canon extended mode: Raster image format
Resolution:
Canon extended mode: 300, 600, and 1200dpi
9. Buffer
256KB
10. Interface
IEEE1284-compatible parallel interface
11. Interface cable
Material: AWG28 or thicker
Type:
Twisted pair shielded cable
Length: 2.0m max.
12. Interface connectors
Printer: Amphenol 57-40360 or equivalent
Cable: Amphenol 57-30360 or equivalent
2-7
Part 2: Product Specifications
BJC-7100
13. Paper Feeding method
ASF and manual feed: Plain paper, high-resolution paper, envelopes,
transparencies, back print film, glossy photo paper,
fabric sheets, high-gloss photo film and T-shirts transfer
Manual feed only:
Other papers
14. Sheet feeder capacity
Plain paper:
130 max.
High-resolution paper: 100 max.
Envelopes:
15 max.
Transparencies:
30 max.
Back print film:
10 max.
Glossy photo card:
10 max.
Glossy photo paper:
1
High-gloss photo film: 1
Fabric sheets:
1
T-shirts transfer
1
15. Paper sizes
Cut sheets:
Size:
A4, B5, A5, Letter, Legal, A4+, Letter+
Weight: 64g/m2 to 105g/m2 [17 to 28 lbs] (auto sheet
feeder),
64g/m2 to 550g/m2 [17 to 146 lbs] (manual feed)
Thickness: 0.8mm max. (manual feed)
Envelopes:
COM#10 and DL-size
Recommended plain paper: Canon bubble jet paper
LC-301
High-resolution paper:
High-resolution paper for color BJ
HR-101
Glossy photo paper:
Glossy photo paper for color BJ
GP-301
High-gloss photo film:
High-gloss photo film for color BJ
HG-201
Glossy photo card:
Glossy photo card for color BJ
FM-101
Transparencies:
Transparencies for color BJ
CF-102
Back print film:
Back print film for color BJ
BF-102
Fabric sheets:
Fabric sheets for color BJ
FS-101
T-shirts transfer:
T-shirts transfer for color BJ
TR-201
16. BJ cartridge
Black BJ cartridge BC-60
Nozzles:
Two rows of 304 nozzles × 1 color
Ink colors:
Black ink and ink optimizer (semi-transparent)
Service life:
Approx. 870 pages per cartridge (when printing standard
1500-character pattern)
Photo BJ Cartridge BC-62e Photo
Nozzles:
Two rows of 80 nozzles × 3 colors
Ink colors:
Yellow, magenta, and cyan
Photo yellow, photo magenta, and photo cyan
Service life (Reference data): Approx. 90 pages per tank (when printing standard
photo pattern)
Head service life: Approx. 2000 pages (when printing standard photo pattern)
2-8
Part 2: Product Specifications
BJC-7100
Color BJ cartridge BC-61
Nozzles:
One row of 80 nozzles × 3 colors
Ink colors:
Yellow, magenta, and cyan
Service life:
Approx. 275 pages per tank (when printing standard color pattern
at 7.5% duty per color)
Head service life: Approx. 2000 pages (when printing standard color pattern at 7.5%
duty per color)
17. Acoustic noise level
Approx. 48dB (based on ISO9296 sound pressure level)
18. Operating environment
During operation:
Temperature:
Humidity:
During storage:
Temperature:
Humidity:
5°C to 35°C
10% to 90% (no condensation)
0°C to 35°C
5% to 90% (no condensation)
19. Power supply
USA/Canada: 120VAC, 60Hz
UK/Australia: 240VAC, 50Hz
Europe/China: 220VAC, 50Hz
20. Power consumption
During soft-power off mode:
During idle:
During printing:
Approx. 7W max.
Approx. 8W max.
Approx. 45W max.
21. External dimensions
467mm (w) × 313mm (d) × 218mm (h)
(with paper output tray in storage position)
22. Weight
Approx. 6.4kg (with AC adaptor installed)
23. Sensor functions
Paper out detection:
BJ cartridge installation detection:
Waste ink amount detection:
Paper width detection:
BJ cartridge identification:
Ink-out detection:
Yes
Yes
Yes
No
Yes
Yes
2-9
Part 2: Product Specifications
BJC-7100
2.2 Paper Specifications
2.2.1 Paper types
TABLE 2-2 PAPER SPECIFICATIONS
Plain paper
Type
Name
Class 1
Canon PB (NSK)
Canon PB (NDK)
Canon NP (Kangas)
Canon NP (Neusiedler)
Canon NP (BoiseCascade)
Canon BJ Paper LC-301
Class 2
Xerox 4024 (75g/m2)
Xerox 4024 (95g/m2)
Plover Bond
Special Papers
Type
Coated Paper
High-Resolution Paper
Transparency
BPF
Glossy Photo Paper
High-Gloss Photo Film
Envelopes
Fabric Sheets
Other Paper
T-Shirts transfer
Size
A4, B5, A5
A4, B5, A5
A4, B5, A5
A4, B5, A5
LTR, LGL
A4, B5, LTR, LGL
LTR, LGL
LTR, LGL
LTR, LGL
Sheet Feeder Manual Feed
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
Name
LC-301
HR-101
CF-102
BF-102
GP-301
HG-201
COM#10
DL
FS-101
Size
A4, LTR
A4, LTR
A4, LTR
A4, LTR
A4, LTR, A4+*1, LTR+*1
A4, LTR
241 × 105mm
220 × 110mm
241 × 356mm
TR-201
A4, A3
Sheet Feeder Manual Feed
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
✕
●
●
●
● : OK
✕: NG
*1: A4+ size paper is a Canon original size paper that, measuring 222.7 × 355.6mm, is
slightly larger than A4 size paper. The A4+size paper allows you to print to the full A4
size. The LTR+ size, measuring 228.6 × 337.8mm, similarly allows you to print to the
full LTR size.
2-10
Part 2: Product Specifications
BJC-7100
2.2.2 Printing range
A4, A5 and B5 Sizes
Letter (LTR) and Legal (LGL) Sizes
(1) 12.0mm
3mm
(1) 12.0mm
3mm
(2) 21.0mm
(2) 21.0mm
(1) 22.6mm
7.0mm
(2) 21.6mm
3.4mm
3.4mm
(1) 22.6mm
7.0mm
(2) 21.6mm
6.4mm
A4+and Letter (LTR+) Sizes
6.4mm
Fabric Sheets
29.3mm
25.4mm
28.0mm
5.1mm
43.6mm
A4+ 5.9mm
Letter+ 5.1mm
31.4mm
6.4mm
Envelopes
(1) 12.0mm
3.0mm
(2) 21.0mm
: Recommended Printing Area
: Printable Area
(1) Monochrome Printing
(2) Color or Photo Printing
(1) 22.6mm
7.0mm
(2) 21.6mm
6.4mm
COM#10: 31.4mm
DLsize: 10.4mm
Figure 2-7 Printing Area
2-11
Part 2: Product Specifications
BJC-7100
2.3 Interface Specifications
1) Interface type
Bidirectional parallel interface (IEEE1284 compatible)
2) Signal level
Input
TTL level: Input signals other than to data bus
"Low" level: +0.0V to +0.6V "High" level: +2.4V to +5.0V
TTL level: Data bus
"Low" level: +0.0V to +0.8V "High" level: +2.2V to +5.0V
Output
"Low" level: +0.0V to +0.4V
"High" level: +2.4V to +5.25V
3) IO
Each signal is pulled up to +5V.
4) Interface cable
Material: AWG No. 28 or thicker (American Wire Gauge)
Type:
Shielded twisted pair cable
Length: 2.0m max.
5) Interface connectors
Printer: Amphenol 36-pin 57-40360 or equivalent
Cable: Amphenol 36-pin 57-30360 or equivalent
6) IO signals and pin configuration
TABLE 2-3 IO SIGNALS IN COMPATIBLE MODE
Pin No.
Signal
I/O
Pin No.
Signal
1
Date-Strobe
IN
19
Data Strobe-RET*2
2
Data 1
IN
20
Data 1-RET
3
Data 2
IN
21
Data 2-RET
4
Data 3
IN
22
Data 3-RET
5
Data 4
IN
23
Data 4-RET
6
Data 5
IN
24
Data 5-RET
7
Data 6
IN
25
Data 6-RET
8
Data 7
IN
26
Data 7-RET
9
Data 8
IN
27
Data 8-RET
10
Acknlg
OUT
28
Acknig-RET
11
Busy
OUT
29
Busy-RET
12
PE
OUT
30
PE-RET
13
Select
OUT
31
Init
14
Auto Feed XT
IN
32
Fault
15
N.C.*1
...
33
Gnd
16
Gnd
...
34
N.C.*1
17
Gnd
...
35
Peripheral Logic High*4
3
18
Peripheral Logic High*
...
36
Select in
*1: N.C.: No Connection *2: -RET are All Connected to Gnd.
*3: Connected to +5.0V Through 390 Resistance.
*4: Connected to +5.0V Through 3.3k Resistance.
2-12
I/O
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
...
...
...
IN
Part 2: Product Specifications
BJC-7100
TABLE 2-4 IO SIGNALS IN NIBBLE MODE
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Signal
Symbol on
Circuit Diagram
HostClk
[STROBE]
Data 1
[DATA 1]
Data 2
[DATA 2]
Data 3
[DATA 3]
Data 4
[DATA 4]
Data 5
[DATA 5]
Data 6
[DATA 6]
Data 7
[DATA 7]
Data 8
[DATA 8]
PtrClk
[ACK]
PtrBusy
[BUSY]
AckDataReq
[PE]
Xflag
[SELECT]
[AFXT]
HostBusy
1
[N.C.]
N.C.*
Gnd
[GND]
Gnd
[GND]
Vcc
[Peripheral Logic High]
I/O
Pin No.
Signal
IN
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
OUT
OUT
OUT
OUT
IN
...
...
...
...
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Init
DataAvail
N.C.*1
N.C.*1
N.C.*1
1284 Active
Symbol on
Circuit Diagram
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[INIT]
[FAULT]
[GND]
[N.C.]
[Peripheral Logic High]
[SELECT IN]
I/O
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
...
...
...
IN
*1: N.C.: No connection
TABLE 2-5 IO SIGNALS IN ECP MODE
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Signal
Symbol on
Circuit Diagram
HostClk
[STROBE]
Data 1
[DATA 1]
Data 2
[DATA 2]
Data 3
[DATA 3]
Data 4
[DATA 4]
Data 5
[DATA 5]
Data 6
[DATA 6]
Data 7
[DATA 7]
Data 8
[DATA 8]
PeriphClk
[ACK]
PeriphAck
[BUSY]
AckReverse
[PE]
Xflag
[SELECT]
HostAck
[AFXT]
1
N.C.*
[N.C.]
Gnd
[GND]
Gnd
[GND]
Vcc
[Peripheral Logic High]
I/O
Pin No.
Signal
IN
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
IN/OUT
OUT
OUT
OUT
OUT
IN
...
...
...
...
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
Signal Gnd
ReverseReq
PeriphReq
N.C.*1
N.C.*1
N.C.*1
1284 Active
*1: N.C.: No connection
2-13
Symbol on
Circuit Diagram
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[GND]
[INIT]
[FAULT]
[GND]
[N.C.]
[Peripheral Logic High]
[SELECT IN]
I/O
...
...
...
...
...
...
...
...
...
...
...
...
IN
OUT
...
...
...
IN
Part 2: Product Specifications
BJC-7100
7) Description of input/output signals
Compatible Mode
Data Strobe [Input]
This signal is used to read DATA1 to DATA8. The signal becomes valid after the
BUSY signal goes Low and the printer outputs an ACKNLG signal. This signal is
normally High. After it goes Low, the printer receives data. When the signal
remains Low, the printer does not operate until it goes High.
Data1 to 8 [Input]
The printer receives data with the DATA STROBE signal.
The state of each bit of the signal must be maintained for at least 0.5µs from the
rising edge of the DATA STROBE signal.
Acknlg [Output]
This signal is a response signal to the DATA STROBE signal.
The host computer does not send the next DATA STROBE signal until this signal is
sent.
When the power is turned on or the BUSY signal goes Low for the input of the INIT
signal, this signal is sent regardless of the DATA STROBE signal.
Busy [Output]
When this signal is High, the printer is BUSY; when Low, the printer is READY.
The printer receives data at least 1 Byte when Data Stobe signal is input in the case
Busy signal goes to "H" regardless of receiving data.
The signal is High in the following cases:
• When receiving data
• When input buffer is full
• When INIT signal is input
• When carriage is in cartridge replacement position
• During manual cleaning
• When an error occurs (paper-out, paper jam, etc.)
• During soft power on/off sequence
• During internal initialization
PE [Output]
This signal goes High when the printer cannot feed paper. The BUSY signal goes
High and the SELECT and FAULT signals go Low.
This signal goes Low when the reset key was pressed and paper is loaded and fed.
The FAULT and SELECT signals then go from Low to High.
If paper is not ejected (paper jam) after an eject operation, this signal and the BUSY
signal go High, and the SELECT and FAULT signals go Low. In this case, the signals
do not change even if the paper is removed manually.
Select [Output]
The printer is READY when this signal is High.
This signal goes Low when an error occurs (paper-out, paper jam, etc.) or when the
carriage is in the cartridge replacement position.
Fault signal goes to low 50ms after Busy signal goes to high.
Auto Feed XT [Input]
This signal is only used for the transition from compatible mode to negotiation mode.
2-14
Part 2: Product Specifications
BJC-7100
Init [Input]
When it changes to Low, this signal sets the printer in the BUSY state, then resets
the printer by changing from Low to High.
The pules width of this signal is requiired longer than 5 micro seconds.
On completion of initialization, the head retreats to the home position and the
default print mode is selected.
Fault [Output]
This signal changes to Low when the printer detects an error and when the carriage
is in the cartridge replacement position to inform the host computer of the error
state.
Select in [Input]
This signal is only used for the transition from compatible mode to negotiation mode.
Nibble Mode
HostClk [Input]
This is the STROBE signal to read DATA 1 to DATA 8. When in negotiation phase
this is the trigger signal to send the protocol confirmation to the printer.
In nibble mode, this signal is always High so that the printer does not fetch data.
Data 1 to 8 [Input]
The data bus is not used in nibble mode.
Ptr Clk [Output]
The printer requests the host computer to read the data by making the Ptr Clk
signal Low in the reverse data transmission phase. After finishing reading, the host
computer notifies the printer of completion of data receiving by making the Host
Busy AUTO FEED XT signal High.
Ptr Busy [Output]
This signal outputs the data to be sent to the host computer in the reverse data
transmission phase. First, bit 3 of the transmission byte data is output, followed by
bit 7.
Ack Data Req [Output]
This signal outputs the data to be sent to the host computer in the reverse data
transmission phase. First, bit 2 of the transmission byte data is output, followed by
bit 6.
This signal is used as the trigger signal to inform the host computer of the printer’s
condition in the negotiation phase.
Xflag [Output]
This signal outputs the data to be sent to the host computer in the reverse data
transmission phase. First, bit 1 of the transmission data is output, followed by bit
5.
This signal informs the host computer whether the printer supports nibble mode in
the negotiation phase.
The printer supports nibble mode when this signal level changes to Low at the same
time the Ack Data Req (PE) signal rises.
2-15
Part 2: Product Specifications
BJC-7100
Host Busy [Input]
Indicates that the host is ready to receive the data from the printer by making the
Host Busy signal Low in the reverse data transmission phase. After that, it goes
High when data is received from the printer to verify receiving data.
This signal changes to High in response to the PtrClk (ACKING) signal changing to
Low to change to the reverse data transmission phase.
Init
This signal is not used in nibble mode.
DataAvail [Output]
This signal outputs the data to be sent to the host computer in the reverse data
transmission phase. First, bit 0 of the transmission data is output, followed by bit
4.
Informs the host computer if there is reverse transmission data or not in the
negotiation phase. If data is ready to be sent to the host computer, this signal
changes to Low.
1284 Active (Input)
This signal confirms that the printer is an IEEE 1284-compatible device. This signal
goes High at the start of the negotiation phase and remains High in nibble mode to
indicate that the printer is operating in bidirectional mode. It changes to Low in the
termination phase.
ECP mode
HostClk [Input]
This is the signal used in handshaking with PeriphAck (BUSY) signal when data is
sent from the host computer to the printer.
This signal changes to Low when data has been output to the data bus (Data1 to 8)
This signal changes to High in response to the PeriphAck (BUSY) signal rising. It
remains High in the reverse data transmission phase.
Data 1 to 8 [Input/Output]
These are input data signals when data is sent from the host computer to the
printer.
In the reverse data transmission phase, these are output signals, and the printer
outputs data to the host computer using this data bus.
Periph Clk [Output]
This signal is always High when data is sent from the host computer to the printer.
In the reverse data transmission phase, this signal changes to Low to indicate that
data is output to the host computer. This signal changes to High in response to the
HostAck (AUTO FEED XT) signal changing to High.
Periph Ack [Output]
When data is sent from the host computer to the printer, this signal changes to Low
when the printer is ready to receive data.
When the data has been received from the host computer, this signal changes to
High.
In the reverse data transmission phase, this signal indicates if the information
output from the printer to the data bus is command information or data (Low:
Command information; High: data).
2-16
Part 2: Product Specifications
BJC-7100
Ack Reverse [Output]
This signal remains High when data is sent from the host computer to the printer. It
remains Low in the reverse data transmission phase.
When switching from the forward to reverse data transmission phase, this signal
changes to Low, to indicate that a request to switch modes has been received, in
response to the fall of the Reverse Request (INIT) signal, which is sent by the host
computer to request the switch.
This signal changes to High, to indicate that the request to switch modes has been
received, when the Reverse Request (INIT) signal rises.
Xflag [Output]
This signal is always High in ECP mode.
Host Ack [Input]
When data is sent from the host computer to the printer, this signal indicates
whether the signal information on the data bus is data or command information
(Low: Command information; High: data).
In reverse data transmission, this signal is used for handshaking with the Periph
Clk (ACKNLG) signal.
When the host is ready to receive data from the printer, this signal changes to Low,
then changes to High when the data has been received.
Reverse Req [Input]
This signal changes to Low during the recovery phase (resending data) when data is
sent from the host computer to the printer.
This signal changes to High in response to the lowered Ack Reverse (PE) signal.
This signal changes to Low on transition from the idle state in the forward data
transmission phase to the reverse data transmission phase (when data is sent from
the printer to the host computer).
When Low, this signal indicates reverse data transmission.
The signal changes to High on transition from reverse data transmission to forward
data transmission.
Periph Req [Output]
This signal changes to Low when, during forward data transmission, the printer
requests reverse data transmission.
When the host computer changes from forward data transmission to reverse data
transmission, this signal changes to High at the same time as the Ack Reverse (PE)
signal in response to the fall in the Reverse Request (INIT) signal, which requests the
switch in modes by the host computer.
1284 Active (Input)
This signal goes High at the start of the negotiation phase and remains High in ECP
mode to indicate that the printer is operating in bidirectional mode. It changes to
Low in the termination phase on exiting ECP mode.
2-17
Part 2: Product Specifications
BJC-7100
0.5µs 0.5µs 0.5µs
Min. Min. Min.
Data 1-8
STROBE
Min.0.8µs
BUSY
ACKNLG
4µs (When HS mode is invalid)
Figure 2-8 Compatible Mode
1284 Active
Ack Data Req
Data (1 to 8)
0000 0000
Bit2
Bit6
Bit3
Bit7
Bit0
Bit4
Bit1
Bit5
Invalid
Host Busy
Host Clk
Ptr Clk
Ptr Busy
Printer Busy
nData Avail
Ptr
Host
With data
Xflag
Nibble mode
Support
TP
TP
TP
TP: minimum set up
Figure 2-9 Nibble Mode
1284 Active
nAck Reverse
Data (1 to 8)
0001 0000
Host Ack
Byte0
Byte1
nCmd
nCmd
Host Clk
Periph Clk
Periph Ack
nPeriph Req
Xflag
ECP mode Support
TP
TP
TP
TP
TP: minimum set up
Figure 2-10 ECP Mode
2-18
Part 3
OPERATING
INSTRUCTIONS
Page
3- 1
3- 1
3- 2
3- 3
3- 8
3- 9
3 -10
3 -12
3 -12
3 -13
3 -14
3 -14
3 -16
3 -17
3 -19
3 -19
3 -20
3 -20
3 -21
1. PRINTER SETUP
1.1 Unpacking
1.2 Installation Location
1.3 Installation
1.4 Turning Printer Power On and Off
1.5 Loading Printer Paper
1.6 Names of Parts and Their Functions
2. TRANSPORTING THE PRINTER
2.1 Transporting the Printer
2.2 Manual Capping
3. PRINTER SERVICING FUNCTIONS
3.1 Error Indications
3.2 Warning Indications
3.3 Function Settings
3.4 EEPROM
3.5 Cleaning the BJ Cartridge
3.6 Test Printout
3.7 Pickup Roller Cleaning Function (HR-101)
3.8 Service Mode
Part 3: Operating Instructions
BJC-7100
1. PRINTER SETUP
1.1 Unpacking
After unpacking, make sure the items below have been included:
Instruction Manual
Instructions/
Driver Software
BJ Cartridge
BJ Cartridge Container
Packing
Packing
Packing
Packing
Carton
Packing
Packing
Tapes
Tapes
Tapes
Tapes
Figure 3-1 Packaging
3-1
Part 3: Operating Instructions
BJC-7100
1.2 Installation Location
To ensure optimum performance, install the printer where there is adequate space.
It is also important that you install the printer where the vibration caused by the
carriage movements will not cause problems.
The figure illustrates the printer dimensions.
Approx. 300mm Max.
Approx. 600mm Max.
467mm
Figure 3-2 Printer Dimensions
Use the printer where the ambient temperature is between 5°C and 35°C
and the ambient humidity is between 10% and 90% (no condensation).
Do not install the printer where it is subject to direct sunlight or where it
may be subject to rapid fluctuations in temperature, such as close to air
conditioners, etc. Also, do not leave the printer in motor vehicles, etc.,
where it may be subject to a rapid rise in temperature.
Do not install the printer where it may be subject to excessive amounts of
dust, or subject to sea breezes or other sources of salinity.
Do not install close to TV, speakers, or other sources of storing magnetic
fields.
Install the printer on a level and stable surface.
Avoid locations subject to vibration.
If you install the printer on a standard PC rack, make sure the rack itself
is well secured to avoid excessive vibration during printing.
3-2
Part 3: Operating Instructions
BJC-7100
1.3 Installation
Set up the printer as follows.
1.3.1 Connecting the interface cable
1) Make sure both the printer and host PC are OFF.
2) Connect the interface cable to the interface connector on the printer. Lock the
connector clips.
3) Connect the other end of the interface cable to the host PC.
1. Connect the cable to the printer
2. Connect the cable to the computer
Figure 3-3 Connecting the Interface Cable
1.3.2 Connecting the power supply
1) Connect the power cord to the AC adaptor, then plug the AC power plug into a wall
outlet.
2) Press the printer POWER button. The printer beeper sounds and the power lamp
blinks.
3) After the printer has initialized itself, the carriage moves to the left for the BJ
cartridge to be installed.
2. Plug the power plug
into a wall outlet.
3. Press the POWER button
1. Connect the
power cord to
the AC adaptor.
Figure 3-4 Connecting the Power Supply
3-3
Part 3: Operating Instructions
BJC-7100
1.3.3 Installing the BJ cartridge
1) Removing the BJ cartridge protectors
Remove the BJ cartridge from the package, then remove the cap and tape on the
nozzles, as shown in the figure.
Head Cap
Protective Tape
Figure 3-5 Removing Cap and Tape from BJ Cartridge
Do not reuse the cap and tape. It can clog the nozzles or mix the ink
colors.
Do not touch the nozzles when removing the tape as doing so may result
in the head becoming scratched and dirt adhering to the head, resulting in
poor printing.
Do not shake the BJ cartridge after removing the cap and tape as doing so
may result in ink spillage.
2) Installing the BJ cartridge
Open the printer’s front cover and install the BJ cartridge on the carriage.
Install the BC-60 on the left holder and the BC-62e Photo (or BC-61) on the right
holder.
After installing the cartridge, press the REPLACE button. The beeper sounds once
and, after about 15 seconds, the carriage returns to the capping position.
REPRACE Button
BC-60
BC-62e Photo
or BC-61
Figure 3-6 Installing BJ Cartridges
3-4
Part 3: Operating Instructions
BJC-7100
3) Aligning the print heads
Because two BJ cartridges are installed in the printer, differences in how they are
secured and in the cartridges themselves can shift the way ink is ejected onto the
paper. To even out any differences and ensure satisfactory print quality, follow the
procedure below for adjusting the relative positions of the print heads after
completing the setup procedure on the PC.
1) Load two or more sheets of standard A4-size plain paper into the sheet feeder.
2) Following the instructions on the Printer Driver's control sheet, print a Print Head
Alignment Pattern.
3) Check the printed patterns to select the optimum A (vertical), B (horizontal), C
(bidirectional 1) and D (bidirectional 2) alignment values.
4) Following the instructions on the Printer Driver's control sheet, print a HighResolution Adjustment Pattern.
5) Check the printed pattern to select the optimum E (horizontal 1), F (bidirectional
1), G (horizontal 2) and H (bidirectional 2) adjustment.
6) Following the instructions on the Printer Driver's control sheet, quit the print
head alignment procedure.
7) You can print the nozzle check pattern to check the print head alignment values
after completing this procedure. To print the nozzle check pattern, refer to 3.8
Service Mode (Page 3-21).
(C) Bidirectional 1
alignment value
(-7 to +7) (D) Bidirectional 2
(A) Vertical alignment
value (-3 to +3)
Standard Mode
Fast Mode
(B) Horizontal alignment
value (-7 to +7)
alignment value
(-7 to +7)
(E) Horizontal 1
(G) Horizontal 2
alignment value
alignment value
(-3 to +3) (F) Bidirectinal 1 (-3 to +3) (H) Bidirectional 2
alignment value
(-3 to +3)
alignment value
(-3 to +3)
Figure 3-7 Checking Print Head Alignment
3-5
Part 3: Operating Instructions
BJC-7100
1.3.4 Replacing the ink tanks
You can replace the ink tanks of the BC-61 and BC-62e Photo BJ cartridges (not the
BC-60 BJ cartridge). Replace the ink tanks as described below.
1) When to replace the ink tank
Replace the ink tank in any of the following cases: the ink runs out, the ink tank is
out of its package for over six months, and the printing quality does not improve
even after the head is cleaned.
The color ink tanks of the BC-61 and BC-62e Photo contain multiple colors; if one
ink color runs out, the entire color ink tank must be replaced.
2) Removing an ink tank
Press the REPLACE button to move the carriage to the cartridge replacement
position (you can also use the printer driver).
As shown in Figure 3-8, lift the front of the ink tank to remove the ink tank from the
holder. Do not touch or let your clothing come in contact with the ink feeds on the
ink tank.
REPLACE Button
Figure 3-8 Replacing the Ink Tank
3) Installing an ink tank
Remove a new ink tank from its box, then remove the cap from the ink feeds as
shown in Figure 3-9. Install the ink tank in the holder in the reverse procedure from
that described above.
After installing the ink tank in the holder, press the REPLACE button to return the
carriage to the capping position.
Figure 3-9 Removing Protective Cap from Ink Tank
3-6
Part 3: Operating Instructions
BJC-7100
1.3.5 Cartridge container [SB-60]
The printer is supplied with a container for storing the BC-61 or BC-62e Photo BJ
cartridges for users who are using both the BC-61 and BC-62e Photo. (Note that the
BC-60 cannot be stored in the container.)
When the BC-61 is installed in the printer, the BC-62e Photo is stored in the
container, and vice versa.
The container can be mounted on the back of the printer.
When storing the BC-61 or BC-62e Photo in the container, make sure the
ink tanks are installed in the BJ cartridge holder.
Make sure that the cartridge faces the correct way in the container.
Do not shake or drop the container, as ink may spill.
BC-62e Photo or BC-61
Container
Push here
Printer
Figure 3-10 Cartridge Container SB-60
The BJC-7100 use a range of inks and, when printing on plain paper, an
ink optimizer for plain paper is used. The ink optimizer is an almost
colorless, transparent fluid.
For simplicity in this manual, we refer to the ink optimizer for plain paper
simply as ink optimizer or just optimizer. We also refer to the various
colored inks and the ink optimizer for plain paper simply as "inks".
3-7
Part 3: Operating Instructions
BJC-7100
1.4 Turning Printer Power On and Off
1.4.1 Turning the power on
When the printer is connected to a power supply, press the POWER button to turn it
ON. The beeper sounds once and the printer initializes itself.
If no BJ cartridge has been installed, the POWER indicator blinks to show that the
printer is waiting for the cartridge to be installed.
If a BJ cartridge has already been installed when the power is turned on, the POWER
indicator lights to show that the printer is in standby mode.
When the printer is first turned on after leaving the factory, it automatically performs
a cleaning operation. This operation takes about 2 minutes during which the POWER
indicator blinks to show that cleaning is being performed.
1.4.2 Turning the power off
If the printer is ON, press the POWER button to turn the printer OFF.
When you turn the printer off, the printer automatically caps the BJ cartridge.
During this sequence, the POWER indicator continues to blink. The POWER indicator
turns off on completion of the power off sequence.
Before unplugging the power cable from the wall outlet, make sure that the POWER
indicator is off.
Do not unplug the power cable from the wall outlet before turning off the
printer using the POWER button.
If you unplug the power cable to disconnect the power, the BJ cartridge
capping will not be performed and ink may leak and dry on the nozzles,
deteriorating the print quality.
If you press the POWER button to turn off the power during a cleaning operation, the
POWER indicator will continue to blink until the cleaning operation has been
completed. The power turns off after the cleaning operation has been completed and
the nozzles have been capped. Note that any errors occurring after the start of the
power off sequence are ignored.
Figure 3-11 Incorrect Method of Powering Off
3-8
Part 3: Operating Instructions
BJC-7100
1.5 Loading Printer Paper
To obtain optimum print quality, either use the auto sheet feeder or the manual feed on
the back of the printer, depending on the type of print paper you are using. Because
this printer automatically adjusts the platen-head gap according to the paper being
used, there are no paper selection or head gap levers. Note that the paper rest can also
be extended to support larger paper sizes.
TABLE 3-1 PRINTER PAPER SETTINGS
Paper Type
Plain Paper
Plain Paper for
Color BJ
Coated Papers
Glossy Photo Paper
High-Gloss
Photo Film
Transparencies
Back-Print Film
Fabric Sheets
T-Shirts Transfer
Glossy Photo Card
Envelopes
Other Papers
Size
Feed Method
A4/A5/B5/LTR/LGL Auto/Manual
Sheet Feeder Capacity
Approx. 13mm Max.
A4/A5/B5/LTR/LGL Auto/Manual
Approx. 13mm Max.
HR-101*
GP-301*
HG-201*
A4/A5/B5/LTR
Auto/Manual
A4/LTR/A4+/LTR+ Auto/Manual
A4/LTR
Auto/Manual
100 Max.
1
1
CF-102*
BF-102*
FS-101*
TR-201
FM-101
COM#10
DL-size
106g to 450g/m2
Ream Weight
(0.8mm thick max.)
A4/LTR
A4/LTR
241 (v) × 356 (h) mm
A4/A3
219.5 (v) × 119.6 (h) mm
241.3 (v) × 105 (h) mm
220 (v) × 110 (h) mm
150 to 297 (v) ×
150 to 241.3 (h) mm
30
10
1
1
10
15
15
64g to 105g/m
Ream Weight
LC-301*
2
Auto/Manual
Auto/Manual
Auto/Manual
Auto/Manual
Auto/Manual
Auto/Manual
Auto/Manual
Manual
Max.
Max.
Max.
Max.
Max.
Auto:
100 to 355.6 (v) × 100 to 241.3 (h) mm
Manual:
150 to 297 (v) × 150 to 241.3 (h) mm
Ream weight: Auto sheet feeder: 64 to 105g/m2
Manual feed:
64 to 450g/m2 (0.8mm thick, max.)
* Indicates papers designed for use in bubble jet printers.
A4+ and LTR+ are Canon original paper sizes.
Paper sizes:
Paper Guide
Paper Rest
Manual Feed Guide
Paper Output Tray
Figure 3-12 Paper Settings
3-9
Part 3: Operating Instructions
BJC-7100
1.6 Names of Parts and Their Functions
The different parts of the printer and their functions are shown below.
FRONT
Paper Rest
Supprots the stack of paper loaded in the
sheet feeder.
Sheet Feeder
Print paper is loaded in the sheet feeder.
Note that the sheet feeder capacity deffers
according to the type of paper loaded.
Paper Guide
The left edge of the print paper is supported
by the paper guide so that the paper remains
straight as it is fed through the printer
Cover
Open the cover whenever it is necessary to
replace a BJ cartridge, replace an ink tank,
or remove jammed paper.
Paper Output Tray
Receives the printed paper.
When printing large paper sizes, you can
extend the tray to support them.
Operator Panel
OPERATOR PANEL
POWER Button
Turns the printer on and off.
POWER Indicator
Indicates when the printer is on. The POWER
indicator blinks when the printer is receiving
data and when an error occurs.
ERROR Indicator
When an error occurs, the ERROR indicator
lights or blinks and the buzzer sound. The
number of blinks indicates the type of error
that has occurred.
RESUME Button
Use the RESUME button to reset the printer
if a paper jam or other trouble occurs.
Also use the RESUME button when manually
cleaning the nozzles or cleaning the pickup
roller with a cleaning sheet within HR-101.
Figure 3-13 Names of Parts and Their Functions (1)
3-10
Part 3: Operating Instructions
BJC-7100
INSIDE
REPLACE Button
The REPLACE button moves the carriage
from the cartridge replacement position to
the home position or vice versa.
BACK
Parallel Interface Connector
Connects the parallel interface to the PC.
Manual Feed Slot
Insert sheets through this slot when
manually feeding paper. Lightly support
the paper while feeding it straight into this
slot.
Manual Feed Guide
Adjust the manual feed guide sothat it is
slighty in contact with the edge of the paper
being manually fed. This ensures that the
paper is fed correctly.
AC Adaptor and Power Cable
Once installed on the printer, the user does
not need to remove the AC adaptor when
disconnecting the power cord.
Plug the power cable into a wall outlet.
Figure 3-14 Names of Parts and Their Functions (2)
3-11
Part 3: Operating Instructions
BJC-7100
2. TRANSPORTING THE PRINTER
When carrying or transporting the printer, keep the BJ cartridge installed in the printer
or stored in the cartridge container.
This prevents the ink from leaking and drying out in the nozzles.
Also when both BC-61 and BC-62e Photo are in use, keep one cartridge installed in the
printer and the other in the container.
2.1 Transporting the Printer
When transporting the printer, follow the procedure below:
1) Press the POWER button to turn off the printer.
2) Disconnect the interface cable.
3) Unplug the AC adaptor power cable from the wall outlet.
4) Open the front cover and check that the carriage is locked in the capping position
(right side of printer). If a fault has occurred and the carriage is not in the capping
position, move it manually to the capping position. (See below: Operations performed
only by service personnel)
If a fault has occurred and the user has moved the printer without the carriage being
locked in the capping position, tape the carriage to the opposite side (left side) of the
printer as an emergency measure.
5) Close the front cover
6) Pack the printer in its original packing materials. Be sure to use cushioning
materials.
Capping Position
Emergency Measure
Figure 3-15 Transporting the Printer
3-12
Part 3: Operating Instructions
BJC-7100
2.2 Manual Capping
The BJ cartridges of the BJC-7100 printer can be capped manually only by service
personal.
1) Insert a tweezers into the hole for manual capping positioning and rotate the gears
slowly counterclockwise.
2) When the cap and carriage lock lever are in the lowest position, slowly move the
carriage to the capping position. *
3) Next, use the tweezers to slowly rotate the gears counterclockwise. Stop rotating the
gears when you can see that capping has been completed.
4) The print head is capped and the carriage is locked.
* : See "CAUTION" on page 1-13.
Figure 3-16 Manual Capping Method
3-13
Part 3: Operating Instructions
BJC-7100
3. PRINTER SERVICING FUNCTIONS
3.1 Error Indications
The indicators in combination with the beeper indicate the nature of any error.
There are two types of errors: operator call errors, which can be corrected by the user,
and service call errors, which cannot be corrected by the user. The indicators show
which type of error has occurred. If an operator call error occurs, the indicators light; if
a service call error occurs, the indicators repeatedly blink a specific number of times,
depending on symptoms.
Figure 3-17 Control Panel
3.1.1 Operator call errors
The error is displayed on the computer screen via the printer driver, and you can
check the status of the error as shown in the table below by the number of times that
the beeper on the main unit sounds. If the error is not corrected by the apparent
means, as indicated by the error display, the fault may be elsewhere. In this case,
refer to "Part 5: 6. TROUBLESHOOTING" (page 5-13).
TABLE 3-2 OPERATOR CALLS
Error
Error
Beeper Description (User Correction)
Indicator
Paper-Out or
ON
Twice No paper loaded for feeding
Paper-Jam
(Load the printer with paper, then press the RESUME button.)
Paper Jam
(Remove the jammed paper, then press the RESUME button.)
Ink-Out Error ON
3
Black ink or ink optimizer has run out.
times (Replace BJ cartridge [BC-60].)
Ink-Out Error ON
4
Color or photo ink has run out.
times (Replace appropriate BJ cartridge or ink tank.)
BJ Cartridge
ON
5
BJ cartridge not installed correctly.
Error
times (Install BJ cartridge correctly, then press REPLACE button.)
Waste Ink
ON
6
Waste ink or waste ink optimizer exceeds 95% printer
Alarm *1
times capacity. (Press RESUME button.)
BJ Cartridge
ON
7
Temperature sensed by diode sensor of print head
Overheat Error
times exceeds prescribed temperature.
(Leave printer idle for a moment, then press RESUME button.)
*1: A waste ink error (service call) will occur if you continue to use the printer.
When using a bidirectional parallel interface (Nibble or ECP Modes), a
description of the error is displayed on the host computer’s screen.
3-14
Part 3: Operating Instructions
BJC-7100
3.1.2 Service calls
In the case of service calls, "service personnel call error messages" are displayed on
the host computer’s screen via the printer driver, and you can check the details of the
error as shown in the table below by the number of times that the beeper on the main
unit sounds.
If a service call occurs, refer to "Part 5: 6. TROUBLESHOOTING" (page 5-13).
TABLE 3-3 SERVICE CALLS
Error
Error
Indicator*1
Print Position Blinks
Alignment
2 times
Error
repeatedly
Home
Blinks
Position Error 3 times
repeatedly
Purge Error
Blinks
4 times
repeatedly
Sheet Feeder Blinks
Error
5 times
repeatedly
Printer
Blinks
Temperature 6 times
Error
repeatedly
Waste Ink
Blinks
Full Error
7 times
repeatedly
EEPROM
Blinks
Error
9 times
repeatedly
2
ROM Error * Blinks
10 times
repeatedly
RAM Error *2 Blinks
11 times
repeatedly
Carriage
Blinks
Motor Error
12 times
repeatedly
Paper Feed
Blinks
Motor Error
13 times
repeatedly
Miscellaneous Blinks
Hardware
14 times
Error *2
repeatedly
Beeper Description (User Correction)
Reference
Page
5-16
8
times
Home position not detected during print
position alignment operation.
8
times
Home position not detected other than
during print position alignment operation.
5-18
8
times
Initial position of purge gear not detected.
5-18
8
times
Initial position of pickup roller not detected. 5-19
8
times
Printer temperature sensor on carriage
board has detected abnormal temperature.
8
times
Waste ink amount or waste ink optimizer
5-21
amount has reached 100% printer capacity.
8
times
EEPROM data abnormality.
5-21
8
times
Abnormality in sum check of control ROM.
5-21
8
times
Abnormality in DRAM read/write check.
5-21
8
times
Abnormal carriage motor driver
temperature.
5-22
8
times
Abnormal paper feed motor driver
temperature.
5-22
8
times
Other hardware error (detected by head
5-23
temperature sensor, pickup roller sensor, or
purge sensor)
5-20
*1: The error indicator blinks the number of times indicated in the table, then repeats
the same number of blinks.
*2: The error may not be detected correctly.
3-15
Part 3: Operating Instructions
BJC-7100
3.2 Warning Indications
The printer warns the operator of less serious error states by printing out messages
and sounding the beeper. Printing is not forcibly stopped while warnings are displayed.
BJ cartridge mismatch warning
If you select the photo ink system using the printer driver controls and start printing
with a color BJ cartridge [BC-61] installed, the printer functions as described below.
If you select the standard color ink system using the printer driver controls and start
printing with a photo BJ cartridge [BC-62e Photo] installed, it is possible to print, but
a message is displayed indicating that it would be preferable to replace the BC-62e
Photo cartridge with the BC-61 cartridge.
1) Windows 95/98
After the printer has received the print data, it displays a warning message on the
host computer’s screen. Printing does not start. Replace the BC-61 with the BC-62
Photo, then start the print operation.
2) Windows 3.1
Only the data that can be printed with the color BJ cartridge is printed. By checking
the printed page, the operator can see that there has been a BJ cartridge mismatch.
Replace the BC-61 with the BC-62e Photo, then start the print operation.
BJ cartridge overheat warning (cartridge replacement-inhibited temperature)
This warning message is displayed when you press the REPLACE button or you select
BJ cartridge or ink tank replacement via the printer driver’s controls but the head
temperature sensor has registered a temperature greater than that prescribed for the
head.
When this warning is displayed, the printer beeper sounds 4 times and cartridge
replacement is halted.
The printer resumes operating when the head temperature has dropped to the
prescribed value, or the head has been left for a minimum of 60 seconds without
further heating.
3-16
Part 3: Operating Instructions
BJC-7100
3.3 Function Settings
This printer has no function selector for setting functions. Use the Windows driver to
make the respective settings. For details, see the Windows Driver Guide included with
the printer.
3.3.1 Items set by control function
Procedure
1) Open the printer driver control dialog box.
2) Select "Custom Setting" to open the custom setting dialog box.
3) Change the parameter of the appropriate setting. (The item is ON when a check
mark appears in the checkbox.)
Settings
a) ECP mode
This setting selects whether or not to be used ECP mode when printing.
"OFF": No ECP mode (default)
"ON": ECP mode
b) High speed printing
This setting specifies whether or not to print at high speed by reducing the
response of the printer.
"OFF": Normal speed printing
"ON": High speed printing (default)
c) Pause page
This setting specifies whether or not to use the function to prevents ink transfer
between sheets by specifying a fixed waiting time after printing each page.
"OFF": No pause after printing each page (default)
"ON": Pause after printing each page
Figure 3-18 Windows 95 Driver Control Sheet (Sample)
3-17
Part 3: Operating Instructions
BJC-7100
3.3.2 Service mode of printer driver
There are certain printer driver control functions as service mode. These service
mode functions, which must be used with caution, are provided for service
purposes only.
Procedure
1) Open the printer driver control dialog box.
2) Select "Custom Setting" while pressing down the shift key to open the custom
setting dialog box. The dialog box contains the normal and service mode control
settings.
3) Change the parameter of the appropriate setting. (The item is ON when a check
mark appears in the checkbox.)
Settings
a) Pause scan
This setting specifies whether the carriage pauses between scans (the horizontal
travel of the carriage) during printing.
It takes ink longer to dry on transparencies and other special papers than on plain
paper, and there is therefore a risk under certain ambient conditions of a drop in
print quality. If the pause is set ON under such circumstances, the ink has a
chance to dry between scans. However, printing takes much longer.
b) Economy cleaning (skip first power-on cleaning)
This setting determines if cleaning is performed when the power is first turned on
after the power is connected.
"OFF": First power-on cleaning performed (default)
"ON": First power-on cleaning not performed
If the AC power supply is frequently disconnected (such as when the printer is
linked to a computer’s power supply), setting economy cleaning ON reduces ink
consumption and minimizes the startup time by omitting the first power-on
cleaning. When economy cleaning is set ON, the power-on cleaning using the 72hour timer is also omitted, and there is a serious risk of a drop in print quality if
the printer is left unused for a relatively long time.
c) Ink-out detection
This setting determines if the ink out detection function is on or off.
"ON": Ink out detection function on (default)
"OFF": Ink out detection function off
Make sure the ink out detection function is on unless dealing with a user who does
not want this function or you are checking for malfunctions in the detection system.
Figure 3-19 Hidden Control Sheet (Sample)
3-18
Part 3: Operating Instructions
BJC-7100
3.4 EEPROM
The EEPROM stores data such as the total page count, BJ cartridge
installation/removal count, total waste ink amount, and customsettings. The page
count and waste ink amount indicate the frequency with which the printer is used.
The EEPROM must be reset when the logic board, EEPROM, or waste ink absorbers are
replaced. See "Part 5: 4.3 Waste Ink Absorbers" (page 5-6) for details of replacing the waste
ink absorbers.
3.5 Cleaning the BJ Cartridge
If the printed page shows faults such as white lines or fragmentation, print a nozzle
check pattern to see if the print head nozzles are clogged. If they are, operate cleaning
function for the BJ cartridge to clear the nozzles, as described below.
In addition to cleaning the print heads using online operations via the printer driver,
the BJC-7100 also allows you to manually clean the heads using the RESUME button.
Note, however, that if you perform manual cleaning, the heads of both BJ cartridges
installed in the printer are cleaned. (You can clean just one of the heads if you use the
printer driver.)
Manual Print Head Cleaning
1) With the printer power ON, press the RESUME button until the beeper sounds
once.
2) The POWER indicator blinks. (Any paper in the printer is ejected.)
3) Both BJ cartridges installed in the printer are cleaned.
4) On completion of cleaning, the beeper sounds and the POWER indicator lights
continuously.
Deep Cleaning
If after performing normal cleaning, the print quality is still not satisfactory, perform
deep cleaning.
Deep cleaning uses more ink than normal cleaning.
1) With the printer power ON, press the RESUME button until the beeper sounds
twice.
2) The POWER indicator blinks. (Any paper in the printer is ejected.)
3) Both BJ cartridges installed in the printer are deep cleaned.
4) On completion of deep cleaning, the beeper sounds and the POWER indicator lights
continuously.
The printer also automatically performs cleaning operations at the following times:
1) The first time the power is turned on with the POWER button after the AC power is
connected when the heads are not capped;
2) When a BJ cartridge or ink tank is replaced;
3) When an ink-out error is detected (ink-out detection → cleaning → ink-out
detection → display)
4) The first time the power is turned on with the POWER button after 72 hours or
more has elapsed since the last cleaning or deep cleaning operation;
5) When the dot count exceeds the prescribed value during printing.
3-19
Part 3: Operating Instructions
BJC-7100
3.6 Test Printout
This printer has a built-in self-test function that can be executed without any
connection to a computer.
With the power off, press and hold the POWER button until the beeper has sounded
twice. Release the POWER button to start the test print.
If you print the nozzle check pattern on plain paper, you will not be able to check the
printing of the ink optimizer, which is semi-transparent.
In this case, check the checker pattern at the top right of the nozzle check pattern for
ink smears to see the general status of ink optimizer jetting.
If you need to check each nozzle for ink optimizer, print the nozzle check pattern on
transparency material for bubble jet printers. Check the reflected light from the
pattern to check the status of the nozzles. If it is difficult to see, coat the back surface
with black ink, etc., or position the transparency on black paper. If you print a nozzle
check pattern with the BC-61 cartridge installed, the part printed by the photo head
shown in Figure 3-20 will not be printed.
Black Ink
+
Ink Optimizer
+
Color Ink
Black Ink
+
Ink Optimizer
+
Photo Ink
Black Head
Color Head
Photo Head
(Only When BC-62e Photo
is installed)
(Ink Optimizer Head)
Figure 3-20 Nozzle Check Pattern (Sample)
3.7 Pickup Roller Cleaning Function (HR-101)
Use this function to clean the pickup roller when using the pickup roller cleaning sheet
supplied with the high-resolution paper (HR-101).
1) Insert a sheet of cleaning sheet into the printer.
2) With the printer power ON, press the RESUME button until the beeper sounds four times.
3) The POWER indicator blinks. (Any paper in the printer is ejected.)
4) Paper loading and ejecting operations are performed.
5) On completion of roller cleaning, the beeper sounds and the POWER indicator lights
continuously.
3-20
Part 3: Operating Instructions
BJC-7100
3.8 Service Mode
Use the control buttons to select printer service mode.
In Service Mode, you can, in addition to resetting the EEPROM data, execute the
functions shown in Table 3-4.
1) While holding down the RESUME button, press the POWER button to turn on the
printer.
2) Holding down the POWER button, press the RESUME button twice before the printer
completes its initialization sequence (while the POWER indicator is blinking).
3) On completion of the initialization sequence, press the RESUME button the number
of times required to select the desired function.
4) Press the POWER button to execute the selected function.
TABLE 3-4 SERVICE MODE
Function
Change Country of
Destination.
Print Durability
Pattern for plain
paper.
Print Durability
Pattern for glossy
photo paper.
Print LF Check
Pattern.
5 times
ERROR Remarks
Indicator
OFF
ON
Prints continuous A4-wide pattern.
Stops printing when you turn off
the power.
OFF
Power is automatically turned off
on completion.
ON
Power is automatically turned off
on completion.
OFF
Power is automatically turned off
on completion.
ON
See section 3.8.4.
6 times
OFF
7 times
ON
8 times
ON
Quit Service Mode
9 times or
more
OFF
Quit Service Mode
Print Final Factory
Test Pattern.
RESUME
Button Count
none
Once
Reset EEPROM All
Twice
Service Data.
Reset EEPROM Waste 3 times
Ink Amount Data.
Print EEPROM Data. 4 times
Reference
Page
—
3-22
3-22
3-22
3-23
3-23
Prints continuous A4-wide pattern. 3-24
Stops printing when you turn off
the power.
Power is automatically turned off
3-24
on completion.
Prints continuous A4-wide pattern. 3-24
Stops printing when you turn off
the power.
Restores normal mode.
—
Use when cancelled.
3-21
Part 3: Operating Instructions
BJC-7100
3.8.1 Final factory test pattern
Print out printing pattern as Figure 3-21.
See that "BJC-7100 Vx.xxx" is printed at left top on the final factory test pattern.
"BJ F800 Vx.xxx" is printed if the machine is set as model for Japan.
1) Enter to a service mode. See "3.8 Service Mode" (page 3-20).
2) Press the RESUME button once (ERROR indicator turns on).
3) Press the POWER button to print the final factory test pattern.
4) To quit printing the test pattern, press POWER button.
Figure 3-21 Service Mode Test Print (Sample)
3.8.2 Resetting EEPROM data
1) Total waste ink amount data reset
The data on total waste ink amount stored in the EEPROM is used for detecting
when the waste ink absorbers are full. This data must therefore be reset when you
replace the waste ink absorbers.
1) Enter to a service mode. See "Part 3: 3.8 Service Mode" (page 3-21) for details of
replacing the waste ink absorbers.
2) Press the RESUME button twice (ERROR indicator turns off).
3) Press the POWER button to reset the total waste ink amount recorded in the
EEPROM.
4) After resetting the total waste ink amount, the printer automatically turns off.
2) All service data reset
If, when you replace the logic board, you do not intend to continue using the existing
EEPROM data, reset all the service data in the EEPROM on the new logic board, and
replace the waste ink absorbers and maintenance jet absorbers.
1) Enter to a service mode. See "Part 3: 3.8 Service Mode" (page 3-20).
2) Press the RESUME button three times. (the ERROR indicator turns on).
3) Press the POWER button to reset all service data recorded in the EEPROM.
4) After resetting the data, the printer automatically turns off.
The following data are reset:
• Waste ink amount
• Page count
• Cartridge installation/removal count
• Number of recovery operations
• BJL command settings (to factory settings)
3-22
Part 3: Operating Instructions
BJC-7100
3.8.3 Printing EEPROM data
You can use the following self-print test to check the data recorded in the EEPROM.
Printing EEPROM Data
1) Enter to a service mode. See "Part 3: 3.8 Service Mode" (page 3-21).
2) Press the RESUME button four times. (The ERROR indicator turns off.)
3) Press the POWER button to print the EEPROM data on completion of the printer
initialization sequence. All EEPROM data is printed in hexadecimal dump format.
Total Waste Ink Amount
Waste Ink Optimizer Amount
Page Count
Cleaning Operaion Count
Head Installation/Removal Count
(BC-60)
Head Installation/Removal Count
(BC-61 or BC-62e Photo)
Figure 3-22 EEPROM Data Print (Sample)
3.8.4 Setting destination country
This printer has functions designed for use domestic model BJ F800 and international
model BJC-7100. The destination country flag is set in the EEPROM to select the
relevant function set.
Check that "BJC-7100 Vx.xx Vx.xx x" is displayed at the top left of the test pattern.
When set to the Japanese function set, "BJ F800 Vx.xx Vx.xx x" is displayed.
If the printer has been set for the BJ F800 set, reselect the overseas function set as
follows:
1) Enter to a service mode. See "Part 3: 3.8 Service Mode" (page 3-21).
2) Press the RESUME button five times. (The ERROR indicator turns on.)
3) Press the POWER button to select the destination setting.
4) Press the POWER button. (If the printer has been set for BJ F800, the ERROR
indicator turns off. If set for BJC-7100, the ERROR indicator turns on. If the
ERROR indicator turns off, skip to 6.)
5) Press the RESUME button once to change the destination setting and to turn the
printer off automatically. (Skip to 7.)
6) Press the POWER button to turn the printer off.
7) Make a test print in service mode to check the destination country setting.
After resetting the EEPROM data or writing data to the EEPROM after it
has been reset, be sure to print and check the data settings.
3-23
Part 3: Operating Instructions
BJC-7100
3.8.5 Other Function
The following functions are provided in addition to the functions described above.
These functions are for carrying out special tests, and are not used during normal
servicing.
They are described here for reference only.
1. Print Durability pattern for plain paper
This function continuously prints patterns one sheet at a time for checking the head
alignment accuracy, skew feed and overall scaling on plain paper.
2. Print Durability pattern for glossy photo paper
This function continuously prints patterns one sheet at a time for checking the head
alignment accuracy, skew feed and overall scaling on glossy photo paper.
3. Print LF check pattern
This function continuously prints patterns one sheet at a time for checking line feed
accuracy.
3-24
Part 4
TECHNICAL
REFERENCE
Page
4- 1
4- 1
4- 2
4- 3
4- 4
4- 5
4- 6
4- 6
4- 8
4 -11
4 -11
4 -12
4 -13
4 -13
4 -15
4 -29
4 -33
4 -36
4 -39
4 -39
4 -40
4 -45
4 -46
4 -46
4 -48
1. OVERVIEW
1.1 Printer Block Diagram
1.2 Initial Flowchart
1.3 Print Signal Sequence
1.4 BJ Cartridge Drive
1.5 Power-Off Sequence Flowchart
2. FIRMWARE
2.1 Interface
2.2 Print Modes
2.3 Smoothing Function
2.4 Print Optimization Controls
2.5 Head Overheat Protection
3. PRINTER'S MECHANICAL SYSTEM
3.1 Overview
3.2 BJ Cartridge
3.3 Purge Unit
3.4 Carriage
3.5 Paper Feed/Sheet Feeder Mechanism
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
4.2 Logic
4.3 Electrica System
5. DETECTION FUNCTIONS
5.1 Sensor-based Detection Functions
5.2 Miscellaneous Detection Functions
Part 4: Technical Reference
BJC-7100
1. OVERVIEW
1.1 Printer Block Diagram
Paper Feed Motor
Carriage Motor
Purge Unit
• Purge Sensor
Carriage (left) Carriage (right)
• Black
BJ Cartridge
• Home Position
Sensor
CNLF
CNHED 1
• Color/Photo
BJ Cartridge
• Ink-out Detection
Circuit
CNHED 2
CNPGS
Carriage Motor
Driver
Vcc (+5VDC)
VH (+20VDC)
CNIF
AC Adapter
CNPWR
Paper Feed
Motor Driver
CNCR
Printer
Controller
MPU
VM (+27.6VDC)
Indicator
Paper-end
Sensor
Pickup Roller
Sensor
Control
Buttons
EEPROM
Reset
Circuit
Control ROM
Figure 4-1 Printer Block Diagram
4-1
DRAM
I/F
Part 4: Technical Reference
BJC-7100
1.2 Initial Flowchart
The following flowchart shows the steps in the initialization sequence that takes place
when the power is turned on and before the printer enters the online state.
Start
A
Connect power cable of
AC adaptor to wall outlet.
(Hard power ON)
Paper output operation
ROM check
RAM check
EEPROM check
OK?
No
Yes
Paper-out/paper-jam error
Waste ink check
Turn power ON.
(Soft power ON)
OK?
OK?
No
No
Yes
Waste ink-full error
Yes
Purge unit initialization
EEPROM error
Paper check
(Paper-end sensor)
ROM error
OK?
RAM error
Is paper-out?
No
Yes
No
Purge error
BJ cartridge check
Printer temperature check
Yes
Paper-out/paper jam error
Purge unit decapping
OK?
No
Yes
OK?
BJ cartridge error
No
Auto cleaning operation
Printer temperature error
Yes
Purge error
Detection fo carriage
in home position
OK?
Ink-out check
No
Is there any ink?
No
Yes
Yes
Ink-out error
Home position error
Waste ink check
Sheet feeder initialization
OK?
Print position
correction error
OK?
No
No
(Displayed during paper
feed operation after the
printer has been in
standby mode)
Yes
Yes
Waste ink alarm
Sheet feeder error
Waste ink-full error
A
END
Figure 4-2 Flowchart of Initialization Sequence
4-2
Part 4: Technical Reference
BJC-7100
1.3 Print Signal Sequence
The following describes the sequence of signals from the time the host PC sends the
print signals to the printer up to the point at which printing is performed.
a) The host PC sends print signals to the printer.
The print signals consist of print data and control commands.
b) The printer controller receives the print signals and temporarily stores them in the
DRAM receive buffer.
c) The MPU fetches the print signals from the receive buffer and separates the print
data from the control commands based on the program in the control ROM.
The MPU processes the control commands based on the program in the control ROM.
d) The MPU expands the print data in the DRAM print buffer.
e) The printer controller receives the request to start printing from the MPU and the
print data is sent from the DRAM by DMA to the printer controller.
f) The printer controller converts the print data into serial data for the respective BJ
heads and outputs this data to the BJ heads with control signals.
The drive circuits in the BJ heads convert the serial data to parallel format and
control the output of inks onto the print paper as indicated by the control signals.
g) The MPU and printer controller sense the status of the BJ heads and printer and
control the printer as a whole, including the motor drivers, etc.
a
b
Host PC
c
DRAM
Receive
Buffer
Printer
Controller
d
f
Print Buffer
e
Drive
Circuits
c
d
g
c
g
BJ Head
• Black Head
• Ink Optimizer Head
• Color Head
• Photo Head
e
g
MPU
g
: Print Data
: Control
Commands and
Signals
Control ROM
Motor Driver
Sensors
Logic Board
Figure 4-3 Print Signal Sequence
The BJC-7100 supports the Canon extended (native) mode, but not
emulation. The print signals sent from the host PC are therefore Canon
extended mode signals converted by the printer driver.
4-3
Part 4: Technical Reference
BJC-7100
1.4 BJ Cartridge Drive
The BJ cartridges are driven according to the print data and control signals output by
the logic board. The control signals determine the timing with which ink is ejected from
the nozzles in the BJ heads and the amount of ink. These are optimized by the printer
controller according to the conditions shown bellow. The control signals also stabilize
the amount of ink by keeping the BJ heads at the optimum temperature.
The drive frequency is changed to 14.4kHz, 10.56kHz or 9.6kHz by print modes.
• BJ head temperature (heater board) and printer temperature
• Fluctuations in the heater characteristics of the BJ heads (head rank)
• Print mode and media being printed on
1.4.1 Print drive control
In the BJC-7100, printing is achieved by block dispersal drive, in which the three
vertical rows of nozzles fire sequentially and driven alternately odd/even to minimize
the concurrent firing of neighbouring nozzles.
The heat enable signal consists of a pre-pulse and main pulse. To keep the ink jetting
in the optimum state, the pulse width is varied according to the internal state of the
printer, such as the head rank, printer temperature, and head temperature.
The BJC-7100 uses a range of inks and, when printing on plain paper or
envelopes in other than draft mode, an ink optimizer for plain paper. The
ink optimizer is an almost colorless, transparent fluid.
For simplicity in this manual, we refer to the ink optimizer for plain paper
simply as ink optimizer or just optimizer. We also refer to the various
colored inks and the ink optimizer for plain paper simply as "inks".
4-4
Part 4: Technical Reference
BJC-7100
1.5 Power-Off Sequence Flowchart
The following flowchart indicates the steps in the sequence between turning the printer
power off by pressing the POWER button until the printer stops.
Soft power-off by pressing the
POWER button or using the
printer driver control sheet.
*
POWER button pressed while replacing
BJ cartridge or ink tank.
OR
Print left 10 min. or more in BJ
cartridge replacement position.
POWER indicator blinks.
POWER indicator blinks.
No
Has paper
been fed?
Yes
No
Are BJ cartridge
installed?
Eject paper
Yes
Carriage returns to home position
(without capping).
Has
any printing been
performed?
No
Black BJ
cartridge only
(BC-60)
Yes
Purge operation
What types
of BJ cartridge are
installed?
Carriage returns to
home position.
Either color (BC-61)
or
Photo (BC-62e)
BC cartridge
No
Are caps open?
Black and color,
or
black and Photo
No
Is ink out?
Yes
(Ink-out)
Carriage returns to
home position.
Yes
Capping operation
Cleaning operation
POWER indicator OFF
Capping operation
Printer stops.
POWER indecator OFF
Printer stops.
* : If the power is turned off using the POWER button or the printer driver control sheet (soft power
off) during cleaning or capping operations, this sequence starts on completion of that operation.
Figure 4-4 Power-Off Sequence Flowchart
If the power cord or AC adaptor is disconnected before the printer is
turned off with the POWER button, the power-off sequence may be
interrupted without the nozzles being capped. In this case, reconnect the
power cord or AC adaptor, press the POWER button to start up the printer
as normal, then turn off the printer with the POWER button before
disconnecting the power cord or AC adaptor.
4-5
Part 4: Technical Reference
BJC-7100
2. FIRMWARE
2.1 Interface
The printer is equipped with an IEEE1284-compatible bidirectional parallel interface.
This interface supports compatible mode, nibble mode, and ECP mode.
Compatible Mode:
In compatible mode, signals are sent in one direction only, from
the host PC to the printer, as with the standard Centronics interface.
This is the default mode when the printer is turned on.
Negotiation:
Negotiation is the procedure by which the printer interface adjusts
to bidirectional mode.
Compatible Mode
Selectin=High
Autofd=Low
Negotiation
1000 0000 *
Extensibility
request analysis
Extensibility Link
0001 0000 *
0000 0000 *
Nibble Mode
ECP Mode
Selectin=Low
Termination
Rejection
* Value of extensibility
request
Extensibility Link:
This is a part of the negotiation phase, entered when the value
of the received extensibility request is (1000 0000). The bidirectional
mode and device ID, etc., are exchanged in this phase.
Termination:
The interface returns from nibble mode or ECP mode to compatible
mode in this phase.
Figure 4-5 Bidirectional Centronics Specifications Selection Sequence
2.1.1 Compatible mode
In compatible mode, the parallel interface sends data in 8-bit units.
Data is sent using handshaking based on the DATA STROBE, BUSY, and ACKNLG
signals.
When data (Data 1 to 8) and the DATA STROBE signal are input from the host PC, the
printer controller, which controls the parallel interface, outputs a BUSY signal and
latches the data signals as DATA STROBE falls. After the BUSY signal has been
output, the printer controller fetches the latched data via the DRAM bus to the receive
buffer in the DRAM. After writing the data to the receive buffer in the DRAM, the
printer controller outputs an ACKNLG signal, sets the BUSY signal "Low", and waits
to receive the next data from the host PC.
The BJC-7100 can reduce the response time by the operation in the printer driver.
This achieves faster printing, however, this may not work with some host computers.
0.5µs 0.5µs 0.5µs
Min. Min. Min.
Data 1-8
STROBE
Min.0.8µs
BUSY
ACKNLG
4ms (When HS mode is invalid)
Figure 4-6 Interface Timing (Compatible Mode)
4-6
Part 4: Technical Reference
BJC-7100
2.1.2 Nibble mode
In nibble mode, 8-bit data is sent from the printer to the host PC in two 4-bit blocks.
The printer lowers the DataAvail signal when it is ready to send data to the host PC.
After confirming the fall in the HostBusy signal, the printer prepares 8 bits of data
and outputs the low 4 bits on the control signal line on the fall in the PtrClk signal.
When the PtrClk signal drops, the host PC fetches the data and raises the HostBusy
and PtrClk signals.
Next, when the printer has confirmed the second drop in the HostBusy signal, it
outputs the high 4 bits of data to the control signal line. If, after the HostBusy signal
has risen, there is no more data to be sent to the host PC, the DataAvail signal rises
and the printer enters a standby state until there is more data to be sent.
1284Active
(Selectin)
High
Bit2
AckDataReq
(PE)
HostBusy
(Autofd)
35msMax
HostClk
(Strobe)
35msMax
500msMax
PtrClk
(Ack)
PtrBusy
(Busy)
Bit6
35msMax
Status maintained.
Bit3
Bit7
DataAvail
(Fault)
Data Available
Bit0
Bit4
Xflag
(Select)
Nibble Mode Support
Bit1
Bit5
Figure 4-7 Interface Timing (Nibble Mode)
2.1.3 ECP mode
Because data is sent and received in both directions on the data bus in ECP mode,
data can be received at high speed. Because control signals can be used to separate
data from commands, and bidirectional communication can be established within this
mode, there is no need to switch to other modes when switching the direction in
which data is being sent.
The data bus switches direction from forward to reverse data transmission in
response to a fall in the AckReverse (PE) signal from the printer.
The data bus switches direction from reverse to forward data transmission in
response to a rise in the ReverseRequest (Init) signal.
1284Active
(Selectin)
AckReverse
(PE)
Input
Data 1-8
Output
Valid
Valid
Input
HostAck
(Autofd)
HostClk
(Strobe)
0MIN
35msMax
PeriphClk
(Ack)
Data=High
PeriphAck
(Busy)
PeriphRequest
(Fault)
XFlag
(Select)
Command=Low
35msMax
35msMax
ReverseRequest
(Init)
Foward Phase
Foward to
Reverse
Reverse Phase
Figure 4-8 Interface Timing (ECP Mode)
4-7
Foward
Phase
Part 4: Technical Reference
BJC-7100
2.2 Print Modes
The printer selects the carriage operation and bubblejet drive method on the basis of
the media and print quality selected by the driver, and the print data that is received
from the host PC. This enables the printer to achieve optimum print quality, free of
smears and fragmentation.
To improve the quality of images, the printer is designed to print the data using
multiple passes of the carriage.
By increasing the number of passes for the data as a whole, the time required for the
ink for each piece of data to dry is split up, making ink smears less likely.
The printer selects the optimum print mode according to the type of BJ cartridge(s)
installed, the ink system being used, and the various settings, such as print media and
print quality, selected using the printer driver.
TABLE 4-1 NUMBER OF PASSES VS NUMBER OF OPERATIONAL HEAD NOZZLES
Quality
BJ
Cartridge
Direction
Dithering
Media
Plain
Paper
Draft
Standard
(HS)
Bi-directional
Auto
Fine(fast) / Fine / Auto
300 X 300 dpi
600 X 600 dpi
1 p 24
1p 16 POP
Standard
(HQ)
HQ
Uni-directional
Diffusion (* Auto is selectable)
300 X 300 dpi 300 X 300 dpi
3 p 17 POP 4 p 17 POP
Transparancy
Black
+
Photo
Fine
300 X 300 dpi
3 p 17
300 X 300 dpi
4 p 17
BPF
600 X 600 dpi
4 p 17
Fabric
sheet
300 X 300 dpi
3 p 16
Glossy
photo
paper
Glossy
photo
film
High
Resolution
paper
Plain
Paper
600 X 600 dpi
3 p 17
300 X 300 dpi
1 p 24
600 X 600 dpi 300 X 300 dpi 600 X 600 dpi
1 p 16 POP 3 p 17 POP 3 p 17 POP
*
600 X 600 dpi
4 p 17
600 X 600 dpi
4+ p 17 POP
Transparancy
Black
+
Color
300 X 300 dpi
3 p 17
BPF
Fabric
sheet
600 X 600 dpi
4 p 17
300 X 300 dpi
3 p 16
Glossy
photo
paper
Glossy
photo
film
High
Resolution
paper
600 X 600 dpi
3 p 17
600 X 600 dpi
4 p 17
600X1200 dpi
8 p 17
1. 7-color (photo ink used) printing is carried out only for shaded in modes
.
4-color printing is used for all other modes. The ink optimizer is used only for items marked "POP."
2. The number of passes is each mode and the paper feed amount per pass are as follows:
1P: During 1 pass printing/Bk printing only, 304 nozzles. Otherwise, 60 nozzles
3P: 3-pass printing/always 24 nozzles
4P: 4-pass printing/always 16 nozzles
8P: 8-pass printing/always 8 nozzles
4&3P: Bk 4-pass and color 3-pass printing/Bk printing only, 40 nozzles. Otherwise, 24 nozzles
4+P: 4-pass printing/24 nozzles and 16 nozzles alternately repeated
3. Carriage Speed
24: 24 inch/sec
16: 16 inch/sec
17: 17.5 inch/sec
4. The Black + Color mode is operable even if the photo BJ cartridge is attached on the printer.
4-8
Part 4: Technical Reference
BJC-7100
2.2.1 Plain paper optimized printing mode (P-POP)
Only when you select plain paper (in other than draft mode) using the printer driver,
the BJC-7100 ejects ink optimizer from the BC-60's ink optimizer head.
The printer jets the ink optimizer onto the plain paper, followed by the normal ink to
minimize smearing and improve the ink's water resistance.
2.2.2 Economy print mode (Draft mode)
Economy print mode is the fastest print mode of the BJC-7100. Printing is performed
in single passes in bidirectional mode. Because of the speed and bidirectional passes,
no ink optimizer is used in this mode, which also cannot be selected when using the
photo ink system. Because less ink is used in this mode, the printed image is lighter.
2.2.3 Standard mode
The standard mode is further divided into two modes, "speed priority mode" and
"quality priority mode." The speed priority mode is suitable for printing text and
simple illustrations, whereas the quality priority mode is suitable for printing originals
that contain mainly images.
In the speed priority mode, the carriage makes a single pass per line at all times.
This mode is basically unidirectional printing. When only black is being printed, the
printing speed is improved by detecting parts of the original to be printed that do not
contain print data on each horizontal line, and printing in both directions taking
those lines as the threshold between unidirectional and bi-directional printing.
In the quality priority mode, the carriage makes three passes per line to print at
higher quality. In this mode, the printing speed decreases, and photo ink cannot be
used.
2.2.4 High quality and fine mode
Photo print mode uses the thinner inks of the Photo BJ cartridge (BC-62e Photo) to
suppress granularity when printing images with multiple halftones and high contrast.
By combining color and photo inks to achieve nine halftones, not only is the BJC7100 able to print high-contrast images, but also the subtle differences in
intermediate tones.
The photo inks are used in the low-density portions to minimize granularity.
600 × 1200 dpi (8pass) printing process achieves high quality printing without the
photo inks.
: Photo inks
: Color ink
Figure 4-9 Photo Print Mode (Image)
4-9
Part 4: Technical Reference
BJC-7100
2.2.5 Print mode settings
The following table shows the default print mode settings in the printer driver. Select
the Print Mode parameters to change the settings.
TABLE 4-2 MAIN DEFAULT PRINT MODE SETTINGS
Print mode
Text
Super Photo
Ink
system
Color
Photo
color
Auto
Draft
Photo
Color
Color
Color
Graphics
Color
Camera
Photo
color
Dither
Print media
settings
Fine (fast) Plain paper
Diffusion Highresolution
papers
Auto
Plain paper
Fine (fast) Plain paper
Diffusion Highresolution
papers
Diffusion Highresolution
papers
Diffusion Highresolution
papers
Ink
Print direction
optimizer
Yes
Unidirectional
No
Unidirectional
Yes
No
No
Unidirectional
Bidirectional
Unidirectional
No
Unidirectional
No
Unidirectional
Figure 4-10 Print Mode Main Sheet (Sample)
4-10
Part 4: Technical Reference
BJC-7100
Figure 4-11 Print Mode Detail Quality Sheet (Sample)
2.3 Smoothing Function
The BJC-7100 has two methods of smoothing black print data.
The printer driver can convert 600 × 600dpi data into data equivalent to 1200dpi (h) ×
600dpi (v). The printer itself can also convert 300 × 300dpi data into data equivalent to
600 × 600dpi.
2.4 Print Optimization Controls
2.4.1 Power monitor
When, due to high-duty printing, etc., the total head drive power exceeds the power
supply capacity, the consumption is automatically reduced.
2.4.2 Head sticking prevention
To prevent ink mist dispersion caused by high-duty printing, a one pass-worth of data
is splitted and printed as a 2 pass data.
2.4.3 Ink smear prevention
Printed pages ejected from the printer dry naturally in the paper output tray. If,
before a page has dried, the next printed page is ejected onto it, there is a risk that
the ink on the first page will be smeared.
When printing high-density images, etc., the BJC-7100 pauses the carriage between
printing scans and/or delays the ejection of the printed page, to prevent smearing.
4-11
Part 4: Technical Reference
BJC-7100
2.5 Head Overheat Protection
If the temperature of the print heads of the BJ cartridges is allowed to rise beyond a set
temperature, not only is there a risk of burns in the event that the heads are touched,
but it becomes increasingly difficult to achieve optimum print quality. The printer is
therefore equipped with an overheat protection function that uses thermal sensors in
the heads to prevent the temperature rising above the set temperature.
Print head temperature detection is effected by independent sensors in the black head,
optimizer head, color head, and photo head.
Protection level 1:
This protection level prevents the operator from touching the metal plate of a hot print
head when changing the BJ cartridge. If, when replacing a head, the head
temperature is higher than the temperature at which replacement is prevented, the
printer displays a BJ cartridge overheat warning (and the beeper sounds 4 times).
While the protection function is operating, the printer temporarily will not allow BJ
cartridge or ink tank replacement.
Protection level 2:
The carriage returns to the home position after printing each line and waits for a
maximum of 3 seconds to allow the print head to cool. This overheat protection
mechanism continues for a minimum of 20 seconds.
Protection level 3:
If the head temperature continues to rise, the printer stops printing; the carriage
continues to move and the paper is fed through the printer. The printer then discards
any further data sent from the host PC, and performs cleaning operations, ink-out
detection, and checks for failure of the head temperature sensor. If the printer
determines that the ink or ink optimizer has run out, it displays an ink-out error
when data is next received from the host PC. If the head temperature sensor is found
to be faulty, the printer displays a BJ cartridge overheat error.
If the BJ cartridge head temperature sensor is faulty, the above overheat
protection controls may not function correctly.
If it detects a fault in the head temperature sensor, the BJC-7100 printer
displays other hardware error messages (the head temperature sensor
error message may not be displayed correctly).
If the printer cannot recover from the overheat protection control
operations to normal printing, or if other hardware error messages are
displayed, replace the BJ cartridge. For details of how to recover from the
respective error states, see Part 5, Section 6, "TROUBLESHOOTING" (page 513).
4-12
Part 4: Technical Reference
BJC-7100
3. PRINTER'S MECHANICAL SYSTEM
3.1 Overview
This section provides an overview of the printer's mechanical system.
Carriage
Black BJ Cartridge
Sheet Feeder
Color/Photo
Ink Tank
Color/Photo
BJ Cartridge
Page Output Guide
and Tray
Purge Unit
Paper Feed Mechanism
Page Output Unit
Manual Feed Slot
Figure 4-12 Printer's Mechanical System
4-13
Part 4: Technical Reference
BJC-7100
3.1.1 Structure of printer's mechanical system
1) BJ Cartridge/Ink Tank
The printer is shipped with the BC-60 BJ cartridge, which contains black ink and
ink optimizer, and the BC-62e Photo BJ cartridge, which contains three color inks
and three photo inks. The BC-61 color BJ cartridge which contains three color inks
may be shipped instead of the BC-62e Photo.
The BC-60 has a unified print head and ink tank, while the BC-62e Photo has
separate head and ink tanks that can be replaced.
The user can decide whether to use the combination of BC-60 and BC-62e Photo or
BC-60 and BC-61 according to the type of data being printed.
2) Purge Unit
To ensure high-quality printing, the purge unit, which is driven by the paper feed
motor, caps and wipes the face of the BJ cartridge print head to make sure that the
ink can be ejected cleanly from the nozzles when printing.
Functionally, the purge unit consists of a pump and wiper.
The pump draws ink from the BJ cartridge and removes the ink from inside the cap.
The wiper wipes the face of the head. When not printing, the nozzles of the BJ
cartridge are capped to protect them.
3) Carriage
The carriage travels horizontally across the print paper driven via the carriage belt
by the carriage motor. Print signals output by the logic board are sent via the
carriage ribbon cable to the two BJ cartridges mounted on the carriage.
The wiping hook on the bottom of the carriage trips the latch lever and wiper lever so
that the ink optimizer head is wiped.
By controlling the position of the slide lock lever of the purge unit, the carriage
switches between paper feed/sheet feed drive and purge unit drive.
4) Paper Feed/Sheet Feeder
The built-in sheet feeder is driven by the paper feed motor and transports the print
paper to the paper feeder.
The paper feed, which is driven by the paper feed motor, rotates the feed rollers so
that the print paper is transported vertically.
5) Paper Output
The paper output unit prevents smearing and dirtying by ink by providing a time
interval up to when the paper being printed is stacked on top of the already printed
paper on the output tray. This unit feeds printed print paper to the output tray as
each sheet is printed.
Print paper is fed to the output tray by the power of the paper feed roller. This
power is transferred via the paper feed roller gear to the paper output roller inside
the paper output unit to rotate the paper output roller.
Paper end guides are located at both ends of the paper passage path in the paper output
unit. When the paper is being output, both ends of the print paper are lifted up to
slightly warp the paper, and the leading edge of the print paper being printed is made to
hang down so that it does not contact the already printed paper on the output tray.
6) Manual Feed Slot
Paper can be fed into the printer manually from the manual feed slot on the back.
Paper fed manually into the printer takes precedence over any print paper already in
the sheet feeder.
4-14
Part 4: Technical Reference
BJC-7100
3.2 BJ Cartridge
3.2.1 BJ cartridge structure
1) BC-60
In the BC-60, the BJ head is unified with the ink tank.
Cartridge Label
Air Paths
Cartridge Cover
Ink Sponge (Ink Optimizer)
Ink Sponge (Black Ink)
Ink Filters
Ink Pipes
Cartridge Body
Head Packing
BJ Head Unit
Head Clip
Screws
Figure 4-13 Structure of BC-60
Cartridge body
The cartridge body houses the ink sponges and is the base for the BJ head unit.
Ink sponges
The two ink sponges hold the ink and ink optimizer that are fed to the BJ head unit.
Ink pipes
The ink pipes transport the ink from the ink sponges to the BJ head unit.
Cartridge cover
The cartridge cover is welded to the cartridge body to prevent inks leaking from the
body.
Air paths/Cartridge label
Air vents or paths are created between the inside and outside of the BJ cartridge
through the holes and grooves in the cover and the label that is applied to it.
The air vents prevent pressure fluctuations inside the BJ cartridge due to ink
consumption and atmospheric conditions, and help stabilize the supply of inks to
the print head.
Ink filters
The inks are filtered to prevent foreign objects getting into the ink paths.
4-15
Part 4: Technical Reference
BJC-7100
BJ head unit
The BJ head unit receives the ink from the ink pipes and ejects the ink at the print
media according to the print signals from the signal contacts.
Head clip/Screws
The BJ head unit is fastened to the cartridge body using head clip and screws.
Head packing
The head packing ensures that the ink pipes and BJ head unit are in close contact
to prevent ink leaking.
2) BC-61 and BC-62e Photo
The BC-61 and BC-62e Photo consist of a main unit made up of the BJ head unit
mounted on the BJ cartridge body plus the ink tank, which can be removed and
replaced.
BC-61
Tank Lable
Air Paths
Ink Filter
Tank Packing
Tank Cover
Cartridge Body
Ink Sponges
Cyan
Ink Pipes
Magenta
Yellow
Ink Guide
Head Packing
BJ Head Unit
Ink Supply Piece
Screws
Head Clip
Tank Body
Figure 4-14 Structure of BC-61
4-16
Part 4: Technical Reference
BJC-7100
BC-62e Photo
Tank Label
Air Paths
Ink Filter
Tank Cover
Tank Packing
Ink Sponges
Cyan
Cartridge Body
Magenta
Yellow
Ink Pipes
Photo Cyan
Ink Guide
Photo Magenta
Photo Yellow
Head Packing
Ink Supply
Pieces
BJ Head Unit
Screws
Head Clip
Tank Body
Figure 4-15 Structure of BC-62e Photo
Tank body
The tank body houses the ink sponges.
Ink sponges
The ink sponges hold the inks that are fed to the BJ head unit.
The BC-61 has three sponges for yellow, magenta, and cyan color inks. The BC-62e
has six sponges for yellow, magenta, and cyan color inks, and yellow, magenta, and
cyan photo inks.
Ink supply pieces
The ink supply pieces lead the ink from the ink sponges to the ink pipes.
Tank cover
The tank cover is welded to the tank body to prevent inks leaking from the body.
Cartridge body
The cartridge body is the base for the BJ head unit, from which it is separated by
the ink guide.
4-17
Part 4: Technical Reference
BJC-7100
Air paths/Tank label
Air vents or paths are created between the inside and outside of the BJ cartridge
through the holes and grooves in the cover and the label that is applied to it.
The air vents prevent pressure fluctuations inside the BJ cartridge due to ink
consumption and atmospheric conditions, and help stabilize the supply of inks to
the print head.
Ink pipes
The ink pipes transport the ink between the ink tank and ink guides.
Ink filters
The inks are filtered to prevent foreign objects from getting into the ink paths.
Tank packing
The tank packing ensures that the ink tank and ink pipes are in close contact to
prevent ink leakage.
BJ head unit
The BJ head unit receives the ink from the ink guides and ejects the ink at the print
media according to the print signals from the signal contacts.
Head clip/Screws
The BJ head unit is fastened to the cartridge body using head clip and screws.
Ink guides
These form the ink path between the ink pipes and BJ head unit.
Head packing
The head packing ensures that the ink guides and BJ head unit are in close contact
to prevent ink leaking.
4-18
Part 4: Technical Reference
BJC-7100
3.2.2 Structure of BJ head unit
The structure of the BJ head unit is different for each type of BJ cartridge.
1) BC-60
The BC-60 has two identical print heads, each with 310 nozzles, mounted side by
side. One head ejects black ink, while the other ejects the ink optimizer.
Aluminum Plate
Heater Board
Head Stoppers
BJ Head
Black Head
Ink-Eject Direction
Ink Optimizer
Head
Flexible Cable
Head Holder
Figure 4-16 Structure of BC-60 BJ Head Unit
2) BC-61 and BC-62e Photo
The BC-61 print head has 240 nozzles, which eject color inks.
The BC-62e Photo has two print heads, each the same as the BC-61 print head,
mounted side by side. One ejects color inks while the other ejects photo inks.
BC-61
Alminum Plate
Heater Board
Head Stopper
Ink-eject Direction
Color Head
BJ Head
Flexible Cable
Not Used
Head Holder
Figure 4-17 Structure of BC-61 BJ Head Unit
4-19
Part 4: Technical Reference
BJC-7100
BC-62e Photo
Head Stoppers
Heater Board
Aluminum Plate
BJ Head
Black Head
Ink-eject Directions
Photo Head
Flexible Cable
Head Holder
Figure 4-18 Structure of BC-62e Photo BJ Head Unit
3) Description of parts
BJ Print Head (black head, ink optimizer head, color head, and photo head)
The heater board and aluminum plate are connected to the flexible cable.
Flexible Cable
The signal contacts are connected to the heater board by printed pattern wiring.
The contacts are in contact with the signal contacts on the carriage, and are used for
the input and output of print signals and sensor signals between the printer and BJ
print head (heater board).
Heater Board
The heater board has a built-in drive circuit, and is set against the ink room of the
head holder and the nozzles.
The electrode for the ink-out detector is located at the ink room.
The heater is aligned with the rows of nozzles against the nozzles.
Aluminum Plate
The aluminum plate supports the heater board and flexible cable.
Head Holder
The head holder supports the BJ print head.
The ink room stores the inks that are supplied to the nozzles. The ink-out detection
pulse is applied from the heater board electrode.
The nozzles are formed by aligning the ink ejection grooves with the heater array on
the heater board.
Head Stopper
The head stopper attaches the BJ print head to the head holder.
The heater board uses semiconductor technology, in which the heaters
and ICs, etc., of the drive circuit are mounted on a silicon plate.
When the heater drive starts, the ink in the nozzles gets hot, causing the
formation of many bubbles. These finally form one bubble which, as it
heats up, forces the ink to be ejected from the nozzle. Even when the
heater is stopped, the residual heat causes bubbles to continue to form
and ink to be ejected from the nozzle tips. The nozzle is replenished with
ink after the ink has been ejected.
4-20
Part 4: Technical Reference
BJC-7100
3.2.3 Nozzle arrays
In each of the BJ print heads, the nozzles are arranged in vertical rows at a pitch of
1/600-in.
BC-60
Nozzle 310
Nozzle 2
Nozzle 1
Ink optimizer nozzle
Black nozzle
BC-62e Photo
Nozzle 240
Cyan: 80 nozzles
Magenta: 80 nozzles
Yellow: 80 nozzles
Photo nozzle
Nozzle 161
Nozzle 160
Nozzle 81
Nozzle 80
Nozzle 2
Nozzle 1
Color nozzle
BC-61
Nozzle 240
Cyan: 80 nozzles
Magenta: 80 nozzles
Yellow: 80 nozzles
Nozzle 161
Nozzle 160
Nozzle 81
Nozzle 80
Nozzle 2
Nozzle 1
Color nozzle
Print direction forword
(Direction in which carriage travels)
Paper feed direction
Figure 4-19 Nozzle Arrays
In addition to the nozzles shown in Figure 4-19, all BJ print heads have
dummy nozzles at the top and bottom edges.
Also, the color head and photo head have 16 nozzles separating each
color, and designed to prevent neighboring colors mixing. The dummy
nozzles and color separation nozzles are not used for printing.
In the black head and ink optimizer head, up to 304 nozzles are used for
printing.
Nozzles 1 to 3 and 308 to 310 are for adjusting the print head alignment
(between the color head and photo head). According to the alignment
value, the 304 nozzles actually used in printing may shift up or down
within this range of 6 nozzles.
Because the black head and ink optimizer head, and the color head and
photo head, are arranged symmetrically around a center point, the nozzle
arrays are reversed.
For details of alignment, see Part 3, section 1.3.3, "Installing the BJ cartridge"
step 3) "Aligning the print heads" (page 3-5).
4-21
Part 4: Technical Reference
BJC-7100
3.2.4 Signal contacts
The signal contacts on the flexible cable are in contact with the signal contacts on the
carriage, and are used to input and output print signals and sensor signals between
the printer and BJ print head (heater board).
Direction of paper feed
BC-60
BC-62e Photo
BC-61
1
2 N.C.
1
2 N.C.
4
3
5
25 23 24
4
3
5
25 23 24
4
3
5
7,8
9
6
,
19 22 2021
7,8
9
6
19 22 2021
,
7,8
9
6
N.C. 26 27
1
N.C. 26 27
2 N.C.
11 10 12
18 16 17
11 10 12
18 16 17
11 10 12
14 15 13
13 15 14
14 15 13
13 15 14
14 15 13
17 16 18
12 10 11
17 16 18
12 10 11
2021
, 22 19
24 23 25
27 26 N.C.
Black Head
Contacts
6
9 7,8
5
3
N.C. 2
1
4
Ink Optimizer
Head Contacts
2021
, 22 19
24 23 25
27 26 N.C.
Color Head
Contacts
6
9 7,8
5
3
N.C. 2
1
4
Photo Head
Contacts
17 16 18
2021
, 22 19
24 23 25
27 26 N.C.
Color Head
Contacts
Figure 4-20 Signal Contacts
Table 4-4 shows the signals input and output by each print head.
TABLE 4-3 BJ HEAD INPUT AND OUTPUT SIGNALS
Pin No. BJ print head*
Signal
IN/OUT
1
ALL
VH
IN
2
OM
TSAOM
IN
BK
TSABK
IN
PH
TSAPH
IN
CL
TSACL
IN
3
OM
ID2OM
OUT
BK
ID2BK
OUT
PH
ID2PH/ELYPH OUT/IN
CL
4
5
OM
BK
PH
CL
OM
BK
PH
CL
6
ALL
Function
Head drive voltage (20.0VDC ±0.3V)
Temperature sensor (diode) drive voltage
Index 2 detection
Index 2 detection
Index 2 detection/yellow ink-out
detection pulse
ID2CL/ELCCL OUT/IN Index 2 detection/cyan ink-out detection
pulse
SUBHOM
IN
Heater drive
SUBHBK
IN
SUBHPH
IN
SUBHCL
IN
ID1OM
OUT Index 1 detection
ID1BK
OUT Index 1 detection
ID1PH/ELMPH OUT/IN Index 1 detection/magenta ink-out
detection pulse
ID1CL/ELMCL OUT/IN Index 1 detection/magenta ink-out
detection pulse
VDDH
IN
Head logic drive voltage
4-22
Part 4: Technical Reference
BJC-7100
Pin No. BJ print head
7,8
ALL
9
OM
BK
PH
CL
10
OM
BK
PH
CL
11
ALL
Signal
GND
HEATEOM
HEATEBK
HEATEPH
HEATECL
INVOM
INVBK
INVPH
INVCL
ODDE
IN/OUT
...
IN
IN
IN
IN
IN
IN
IN
IN
IN
12
ALL
EVENE
IN
13
14
15
16
ALL
ALL
ALL
OM
BK
PH
CL
ALL
ALL
ALL
ALL
OM
BK
PH
CL
OM
BK
PH
CL
ALL
OM
BK
PH
CL
ALL
BE0
VH
BE1
IDATAOM
IDATABK
IDATAPH
IDATACL
BE2
DCLK
GND
LTCLK
ELOM
ELBK
ELCPH
ELYCL
RANKOM
RANKBK
RANKPH
RANKCL
LTRST
TSKOM
TSKBK
TSKPH
TSKCL
VH
IN
IN
IN
IN
IN
IN
IN
IN
IN
...
IN
IN
IN
IN
IN
OUT
OUT
OUT
OUT
IN
OUT
OUT
OUT
OUT
IN
17
18
19-21
22
23
24
25
26
27
Function
GND
Heat enable
Inversion of output sequence of print
data lock output signal, black and color
heads locked OFF, ink optimizer head
and photo head locked ON.
Heat enable for odd black head and color
head nozzles and even ink optimizer and
photo head nozzles.
Heat enable for even black head and
color head nozzles and odd ink optimizer
and photo head nozzles.
Generation of print data block output signal 1
Head drive voltage (20.0VDC ±0.3V)
Generation of print data block output signal 2
Print data
Generation of print data block output signal 3
Print data transmission clock
GND
Specification of print data latch timing
Optimizer-out detection pulse
Black ink-out detection pulse
Cyan ink-out detection pulse
Yellow ink-out detection pulse
Rank resistance detection
Latch reset
Temperature sensor (diode) output
voltage
Head drive voltage (20.0VDC ±0.3V)
*: Symbols in the BJ print head columns are as follows:
ALL: Signals input to all heads
OM: IO signals for ink optimizer head only
BK: IO signals for black head only
PH: IO signals for photo head only
CL: IO signals for color head only
4-23
Part 4: Technical Reference
BJC-7100
3.2.5 Drive circuit
The drive circuit built into the heater board controls the ejection of inks. The drive
circuit differs according to the type of BJ cartridge.
1) BC-60
The black head and ink optimizer head are each equipped with the drive circuit
shown in Figure 4-21.
VH
RANK
Rank Resistance
GND
SUBH
Sub-heater
HEATE
ODDE
EVENE
Block
Enable
Decoder
BE0
BE1
BE2
1
2
Heater
1
1
6
2
INV
7
8
310
310-bit
Latch
310-bit
Shift Register
IDATA
1
2
25
7
8
80
25
99
80
100
99
100
119
119
120
120
137
137
310-bit
Transistor Array
192
192
211
212
211
231
232
212
249
231
304
232
310
DCLK
LTRST
LTCLK
249
VDDH
VDDH
EL
ID1
ID2
304
See diagrams below.
310
Heater
310
TSK
Head Temperature Sensor
TSA
Black Head
EL
Ink Optimizer Head
Contact
EL
ID1
ID1
ID2
ID2
Contact
Figure 4-21 Block Diagram of BC-60 Drive Circuit
4-24
Part 4: Technical Reference
BJC-7100
2) BC-61 and BC-62e Photo
The color head and photo head are equipped with the drive circuit shown in Figure
4-22.
VH
RANK
Rank Resistance
GND
SUBH
Sub-heater
HEATE
ODDE
EVENE
Block
Enable
Decoder
BE0
BE1
BE2
1
2
6
Heater
1
1
INV
2
6
Yellow
(80 nozzles)
1
2
61
6
80
Heater
80
81
Heater
81
61
80
81
84
84
85
85
102
102
240
240-bit
Latch
240-bit
Shift Register
IDATA
240-bit
Transistor Array
Magenta
(80 nozzles)
157
157
160
161
180
181
160
Heater
160
161
Heater
161
198
180
235
181
240
DCLK
LTRST
LTCLK
VDDH
VDDH
EL
ID1
ID2
Cyan
(80 nozzles)
198
235
See diagrams below.
240
Heater
240
TSK
Head Temperature Sensor
TSA
Color Head
EL
Contact
Yellow
Photo
Contact
EL
Yellow
ID1
Magenta
ID1
Magenta
ID2
Cyan
ID2
Cyan
Figure 4-22 Block Diagram of BC-61/BC-62e Photo Drive Circuit
4-25
Part 4: Technical Reference
BJC-7100
3) Description of block diagram
Block enable decoder *1
Generates BLOCK1 to 6 according to BE0 to 2 from the logic board.
The output sequence of BLOCK1 to 6 is inverted according to whether INV is High or Low.
310-/240-bit shift register
Converts IDATA *1 from the logic board into parallel print data for output.
310-/240-bit latch
Latches and outputs the parallel print data using the LTCLK timing.
AND gate *1
Outputs the part of the parallel print data specified by BLOCK1 to 6, EVENE, and ODDE.
310-/240-bit transistor array *1
Turns on the heaters according to the print data from the AND gate.
The heaters, which are pulled up to VH, are turned ON by setting the heater
connection Low.
Heaters 1 to 310, or 1 to 240
The heater temperature rises when turned on to pre-heat and main-heats the nozzles.
The heaters are aligned with the nozzle array against the nozzles in the head holder.
Rank resistance
Differences in the heater characteristics of the various BJ heads are ranked and
marked using their resistance, which is detected by the printer. The resistance is read
by the A/D board of the MPU as a voltage and converted to digital format to detect the
rank, allowing the BJ print heads to be controlled for optimum print quality.
Sub-heater
This heater adjusts the temperature of the heater board to stabilize the ejection of inks.
The printer drives the sub-heater according to the temperatures detected by the
head temperature sensor and printer temperature sensor, which is mounted on the
carriage board, and the print mode, etc.
Head temperature sensor
The head temperature sensor outputs the temperature of the heater board to the printer.
The voltage output by the head temperature sensor is read by the A/D board of the
MPU as a voltage and converted to digital format to detect the temperature. The
print quality is controlled and the head prevented from overheating on the basis of
the detected temperature.
Electrode *2
The ink-out detection pulse is output to the ink room on the head holder to detect
ink-outs in the ink-path.
Index *2
The type of BJ cartridge mounted in the printer is output to the printer.
*1: The connection and order of IDATA differs according to the type of BJ cartridge.
*2: Some of the electrodes of the color and photo heads are connected to contacts
that are shared with the index.
4-26
Part 4: Technical Reference
BJC-7100
TABLE 4-4 AND GATE CONTACTS AND IDATA ORDER
INV
Output sequence
of BLOCK1 to 6
BLOCK1
BLOCK2
BLOCK3
BLOCK4
BLOCK5
BLOCK6
Order of IDATA*1
ODDE*2
EVENE*2
BC-60
Ink optimizer head
Black head
VDDH (High)
GND (Low)
BLOCK6→1
BLOCK1→6
1–7
100–119
8–25 120–137
26–43 138–155
44–61 156–173
62–79 174–191
80–99 192–211
Reverse order
2, 4, 6–310
1, 3, 5–309
212–231
232–249
250–267
268–285
286–303
304–310
Forward order
1, 3, 5–309
2, 4, 6–310
BC-61/BC-62e Photo
Photo head
Color head
VDDH (High)
GND (Low)
BLOCK6→1
BLOCK1→6
81–84
1–6
85–102
7–24 103–120
25–42 121–138
43–60 139–156
61–80 157–160
Reverse order
2, 4, 6–240
1, 3, 5–239
161–180
181–198
199–216
217–237
235–240
Forward order
1, 3, 5–239
2, 4, 6–240
*1: Forward order refers to serial data in the same order as the image being printed.
Reverse order refers to serial data in the reverse order to the image being printed.
*2: The ODDE and EVENE signals from the logic board are input to the black head and
ink optimizer head, and to the color head and photo head, in reverse order.
The black head and ink optimizer head, and the color head and photo head, are the
same BJ heads arranged symmetrically about a center point. The nozzle arrays are
therefore reversed.
For this reason, the order in which BLOCK1 to 6 are output, the arrangement of
IDATA, and the connections of ODDE and EVENE are reversed in order to align the
ejection of ink at the print media.
In the BC-60 and BC-61/BC-62 Photo, the odd nozzles and even nozzles correspond
because of the arrangement of the nozzles in respect to the print media. Therefore,
the ODDE and EVENE signal connections are reversed to align the ejection of ink at
the print media.
TABLE 4-5 ELECTRODE CONNECTION PINS
BC-60
Ink optimizer head
Black head
Black ink
...
ELBK*1
Ink optimizer
ELOM*1
...
Yellow ink
...
...
Magenta ink
...
...
Cyan ink
...
...
Photo yellow ink
...
...
Photo magenta ink
...
...
Photo cyan ink
...
...
Ink-out ink
*1: Electrode pin
*2: Pin shared with index
4-27
BC-61/BC-62e Photo
Photo head
Color head
...
...
...
...
...
ELYCL*1
...
ID1CL/ELMCL*2
...
ID2CL/ELCCL*2
2
ID2PH/ELYPH*
...
ID1PH/ELMPH*2
...
1
ELCPH*
...
Part 4: Technical Reference
BJC-7100
3.2.6 BJ cartridge detection
The sensor signal from the index on the drive circuit is used to detect whether a BJ
cartridge is installed and, if so, what type it is.
The index is either open or pulled down via the resistor on the heater board.
TABLE 4-6 INDEX CONNECTIONS
ID1
(signal name)
ID2
(signal name)
BC-60
Ink optimizer head
Black head
Open
Pulled down
(ID1OM)
(ID1BK)
Pulled down
Pulled down
(ID2OM)
(ID2BK)
BC-61/BC-62e Photo
Photo head*
Color head*
Open
Open
(ID1PH/ELMPH) (ID1CL/ELMCL)
Pulled down
Pulled down
(ID2PH/ELYPH) (ID2CL/ELCCL)
*: Pins shared with electrodes.
The detection signals are pulled up to VCC on the logic board and are read by the IO
board of the MPU as Low when pulled down and High when open to detect the BJ
cartridge.
With combinations of index sensor signals other than above, all print operations are
disabled. When print operations are disabled, a BJ cartridge error is displayed.
TABLE 4-7 INDEX SENSOR SIGNALS AND BJ CARTRIDGE DETECTION
Index sensor
signals
BJ cartridge
detection
Print
operation
1
N.C.
Low
Low
Low
High
High
High
Low
Yes
Yes
None
Enabled
2
N.C.
Low
Low
Low
High
Low
High
Low
Yes
None
Yes
Enabled
3
N.C.
Low
Low
Low
High
High
High
High
Yes
None
None
Disabled
4
N.C.
High
High
High
High
High
High
Low
Yes
Yes
None
Disabled
5
N.C.
High
High
High
High
Low
High
Low
Yes
Yes
None
Disabled
6
N.C.
High
High
High
High
High
High
High
Yes
Yes
None
Disabled
ID1OM*
ID2OM
ID1BK
ID2BK
ID1PH
ID2PH
ID1CL
ID2CL
BC-60
BC-61
BC-62 Photo
Monochrome
printing
Color printing Enabled Enabled*2 Disabled Disabled Disabled Disabled
Photo printing Disabled Enabled Disabled Disabled Disabled Disabled
1
*1: ID1 of the ink optimizer head is not detected by the printer.
*2: The operator uses the printer driver to select whether printing is continued using
only the color ink system, or whether printing is interrupted.
4-28
Part 4: Technical Reference
BJC-7100
3.3 Purge Unit
3.3.1 Function of purge unit
The purge unit of the BJC-7100 printer has four caps: two for cleaning and capping,
and two for capping only.
The cap for the ink optimizer head is designed for use with the ink optimizer only so
that the ink optimizer does not get mixed with and react with the ink to block the
nozzles. Maintenance jets and wipers for the ink optimizer head only are also
provided.
1) Capping function
The capping function presses the caps of the purge unit against the face of the print
head to prevent the nozzles drying and the inks leaking.
When the cap is open and the printer is idle (waiting for data), the maintenance jets
are operated at 15 second intervals if paper is being fed. If no data is received for
120 seconds, the nozzles are capped. If no paper is being fed, the maintenance jets
are operated and the nozzles capped after a set time from the last data received. The
actual time depends on the ambient conditions and the number of times ink is
ejected, etc.
The nozzles are also capped when the POWER button is used to turn of the power.
2) Cleaning function
The cleaning function cleans the nozzles under the conditions shown below to
maintain the print quality.
In cleaning, paper fragments adhering to the face plate of the print head, ink
residue, and ink optimizer and ink aggregates, are wiped away and the nozzles are
replenished with fresh ink by purging the old ink. In addition, maintenance jets
remove any ink with higher viscosity, air bubbles, mixed inks, and other foreign
objects from inside the nozzles and prevent printing irregularities from unused
nozzles.
4-29
Part 4: Technical Reference
BJC-7100
TABLE 4-8 CLEANING CONDITIONS AND INK CONSUMPTION (AVERAGE)
Conditions for cleaning
Print Head
• RESET button pressed *2
• Printer controlled online
using printer driver *2
• After BJ cartridge
replaced
• After ink tank replaced
•
•
•
•
•
•
•
All heads
Can be
specified
Applicable
heads
Applicable
heads
After ink-out detection
Applicable
heads
RESET button pressed *3 All heads
Printer controlled online All heads
using printer driver *2
First time printer turned All heads
on after connecting AC
power *4
When printer turned on All heads
after 72 hours or more
elapsed from last
cleaning (3-day timer)
At prescribed printed dot Applicable
count
heads
When printer turned off All heads
after printing *5
*1:
*2:
*3:
*4:
*5:
Purged ink amount (for reference)
BC-60
BC-61
BC-62e Photo
Black
Three
Three normal colors *1
Ink optimizer colors *1
Three photo colors *1
0.23g approx. 0.23g approx.
0.23g approx.
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
0.46g approx. 0.46g approx.
↓
↓
0.46g approx.
↓
0.15g approx. 0.31g approx.
0.31g approx.
↓
↓
↓
↓
↓
↓
(Not purged) 0.23g approx.
0.23g approx.
Total amount for yellow, magenta, and cyan color and photo inks.
Standard manual cleaning.
Deep cleaning.
Excluding when BJ cartridge installed and capped in the printer.
Executed only when printing is performed after turning on the printer.
3.3.2 Structure of purge unit
1) Purge drive gear
The purge drive gear is driven via the transmission arm gear by the feed roller,
which is, in turn, driven by the paper feed motor. The purge drive gear operates the
cam that controls the pump operation and wiping. The cam position is sensed by
the purge sensor.
The purge drive gear switches between purging and wiping depending on its
direction of rotation.
4-30
Part 4: Technical Reference
BJC-7100
2) Wiper
After the purge operation, the rotation of the purge drive gear is switched so that,
when the cap lowers, wiping is performed. The wiper of the BJC-7100 printer's
purge unit operates in the direction of the rows of nozzles to wipe any ink from the
head face plate.
The ink removed by the wiper from the head face plate is absorbed by the cleaner
unit on the back face of the platen chassis and the cleaner on the cap unit.
In addition to vertical wiping by the purge unit, there is an additional wiper on the
left of the printer for the ink optimizer head. This special wiper operates horizontally
in relation to the rows of nozzles.
The wiper for the ink optimizer head is operated by the carriage travelling back and
forth. The effect of removing ink optimizer and ink aggregates is improved by
combining the operations of the purge unit wiper and the wiper for the ink optimizer
head.
3) Caps
The purge unit of the BJC-7100 printer has four caps: two for ink purging and
capping, and two for capping only.
After the carriage moves to the capping position, the caps are pressed against the
print head faces.
The two caps for ink absorption and capping are attached to the pump and purge
ink from the BJ cartridge in the cleaning operation.
The purged ink is sent to the ink absorber on the bottom cover unit.
After the ink has been purged, the carriage moves to the left of the capping position
to absorb any waste ink stuck in the cap. So that this waste ink does not mix in the
waste ink absorber with the ink optimizer and form aggregates, the absorber is
equipped with a wall to separate the ink and ink optimizer.
4) Pump
The pump is a tube pump in which a rotating roller is pressed against the ink tube
to create a negative pressure so that the ink is purged. The ink and ink optimizer
ink tubes are, respectively, attached to the caps.
5) Slide lock lever
The slide lock lever is linked to the transmission arm and switches the power from
the paper feed motor.
After the carriage moves further to the right of the capping position, the hook on the
back of the carriage slides the slide lock lever to the right to release the transmission
arm lock. Depending on the direction of rotation of the paper feed motor when the
transmission arm lock is released, the driving force of the transmission arm gear
drives either the purge unit or the sheet feeder.
6) Carriage lock lever
The carriage lock lever is unified with the cap unit and locks the carriage in the
capping position to prevent it from moving horizontally when the caps are pressed
against the faces of the print heads.
4-31
Part 4: Technical Reference
BJC-7100
Purge Unit
Waste Ink Tube
Ink: Lower Tube
Ink Optimizer: Upper Tube
Carriage Lock Lever
Slide Lock Lever
Cap
(For Capping)
Purge Drive
Gear
Pump
Section
Cap
(For Purging and Capping)
Wiper
Figure 4-23 Purge Unit
4-32
Part 4: Technical Reference
BJC-7100
3.4 Carriage
3.4.1 Carriage functions
1) Attachment of print heads
The carriage mechanically attaches the BJ cartridges, which are connected to the
logic board by ribbon cables.
2) Carriage drive
The carriage moves horizontally across the print media driven by the carriage motor
via a carriage belt.
3) Paper feed motor drive switching
When the carriage moves further to the right of the capping position, it moves the
slide lock lever of the purge unit right to release the transmission arm lock and
switch the drive from the paper feed motor to the sheet feeder and purge unit.
4) BJ cartridge maintenance
In the BJC-7100 printer, the ink optimizer head wiper is operated according to the
position of the carriage.
When the carriage moves left, the side of the ink optimizer head presses against the
wiper lever on the left of the printer to set the wiper. When the carriage then moves
right, the hook on the bottom of the carriage pulls the latch lever so that the ink
optimizer head wiper wipes the face of the ink optimizer head.
Carriage Drive
Home Position Sensor
Carriage Belt
Carriage Shaft
Home Position Edge
Carriage Motor
Ink Optimizer Head
Wiper Mechanism
Latch Lever
Wiper Lever
Wilper
Paper Feed Motor Drive
Switching Mechanism
BJ Cartridge Mount
Carriage Ribbon Cable
Slide Lock Lever
Transmission Arm/Gear
Cartridge Hook/Plate Spring
Figure 4-24 Carriage
4-33
Part 4: Technical Reference
BJC-7100
3.4.2 Carriage structure
1) Print head mount
The cartridge hook secures the BJ cartridge to the carriage with a plate spring.
When the BJ cartridge is locked on the carriage, the signal contacts of the ribbon
cable are pressed against those of the bubblejet head so that the print signals are
transferred from the logic board to the BJ cartridge.
2) Carriage drive mechanism
The stepping-type carriage motor moves the carriage horizontally across the print
media, the drive being transmitted by the carriage belt. The home position sensor
(photo-interrupter) on the carriage board detects the home position edge of the
chassis as the initial position, then the stepping pulse is applied to the carriage
motor to control the carriage. The carriage motor is current-controlled by the motor
drive control from the carriage motor driver. The excitation signals that drive the
carriage motor are controlled to the optimum drive pulse width by the printer
controller. Mechanical print aberrations during bidirectional printing are
automatically corrected by software adjustment of the timing based on home
position edge detection.
3) Paper feed motor drive switching mechanism
The paper feed motor drive switching mechanism switches the paper feed motor
drive to the purge unit, paper feed, or sheet feeder according to the position of the
carriage.
Except when the carriage is at the right edge of the printer, the slide lock lever of the
purge unit locks the operation of the transmission arm.
When the carriage is moved further to the right of the capping position (the right
edge of the printer), the slide lock lever is released. While the lock is released, the
direction of paper feed motor rotation is switched to select either purge operation or
sheet feeder operation. If the feed roller is rotated in the direction of feed while the
slide lock lever is released, the transmission arm gear moves to the sheet feeder
drive gear to drive the sheet feeder.
If the feed roller rotates against the direction of feed while the slide lock lever is
released, the transmission arm gear moves to the purge drive gear to drive the purge
unit.
4) Ink optimizer head wiper drive mechanism
The ink optimizer head wiper wipes the rows of ink-optimizer nozzles horizontally
when a page is printed using the ink optimizer (when printing on plain paper in
other than draft mode). The movement of the carriage operates the latch lever and
wiper lever.
By combining the ink optimizer head wiper with the purge unit wiper, it is possible
to improve the removal of the hard-to-eliminate ink optimizer and ink aggregates in
one wiping operation.
4-34
Part 4: Technical Reference
BJC-7100
Top View
Sheet Feeder Gear
Slide Lock Lever
Transmission Arm
Driving Sheet Feeder
Paper Feed Roller Gear
Platen Side
Paper Output Roller
Paper Output Side
Paper Output Roller
Sheet Feeder
Drive Gear
Transmission
Arm Gear
Platen Unit Gear
Idler Gear
Purge Drive Gear
Sheet Feeder Unit
Purge Unit
Feeding Paper
Sheet Feeder Unit
Driving Purge Unit
1) Wiping/Capping Release
Purge Unit Gear
Cam Transmission Gear
2) Purge/Dummy Purge
Pump Transmission Gear
Figure 4-25 Paper Feed Motor Drive Switching
4-35
Part 4: Technical Reference
BJC-7100
3.5 Paper Feed/Sheet Feeder Mechanism
3.5.1 Paper feed/sheet feeder mechanism functions
1) Paper feed function
The paper feed mechanism has two paths: the path taken by sheets fed
automatically from the sheet feeder mechanism and sheets fed manually through
the manual feed slot. The built-in sheet feeder is driven by the paper feed motor,
and loads and automatically feeds the print media. Even envelopes are
automatically fed without the need to operate mechanical paper select levers, etc.
When pages are fed manually, the manually fed page takes precedence over any
media loaded in the sheet feeder.
When the print paper is detected by the paper end sensor (photointerrupter), it is
automatically fed to the top-of-page position on the platen by the paper feed roller.
During printing, the page feed is controlled by controlling the rotation of the paper
feed roller.
On completion of printing, the page is ejected by the paper output roller.
2) Auto platen-head gap adjustment function
The BJC-7100 printer can print without switching the carriage position according to
the thickness of the media being printed on.
The paper feed roller is pressed up by coil springs toward the pressure roller while
the paper output roller is also pressed up by coil springs toward the spurs. The gap
between the head face and the printed media is therefore kept constant regardless of
the thickness of the print media.
Carriage Shaft
Pressure Roller
Platen
Paper Feed Roller
Carriage
Spurs
Coil Spring
Paper Output Roller
Paper Feed Roller Bearing
Paper Output Roller
Spur Cleaner
Paper Output Unit
Figure 4-26 Auto Platen-Head Gap Adjustment
4-36
Part 4: Technical Reference
BJC-7100
Auto Sheet Feeder (ASF)
Print Media
Pickup Roller Sensor
Pickup Roller
Pressure Roller
BJ Cartridge
Paper Output
Unit
Paper End Sensor
Sensor Flag
Spurs
Paper Feed Roller
Manual Feed
Paper Output Rollers
Pickup Guide
Figure 4-27 Paper Feed Mechanism
4-37
Part 4: Technical Reference
BJC-7100
3.5.2 Paper feed/sheet feeder mechanism structure
The sheet feeder of the BJC-7100 printer has no mechanical paper selection lever.
Provided the print media is within the specifications, the media is fed without having
to adjust the carriage position, etc., for the paper thickness.
The print media is loaded into the sheet feeder with the two points of the leading edge
and the left corner picked up by the pickup corners and pickup hooks. When the
drive from the paper feed motor is transferred to the sheet feeder gear, the pickup
roller turns and the printer starts printing.
Print media such as plain paper are fed while pressed against the pickup corners and
pickup hooks and fed into the paper feed mechanism. When feeding stiffer materials
such as envelopes, the rigidity of the paper is sufficient that the pickup hooks and
pickup corners are pressed down and the material can be fed.
The initial position of the pickup roller is determined by the pickup roller sensor
(photointerrupter) on the logic board sensing the flag.
When the print media is detected by the paper end sensor, it is automatically fed to
the top-of-page position. If no print media is detected even after a feed operation, a
paper-out or paper-jam error message is displayed. When manually feeding paper,
the user manually inserts the print media via the manual feed slot until it reaches the
paper end sensor.
Because manually fed print media are fed through a different path than media
automatically fed from the sheet feeder, print media can be manually fed even when
media are loaded in the sheet feeder.
Print media that has been fed to the paper feed mechanism are fed to the top-of-page
position when the paper end sensor has sensed their existence for two or more
seconds.
Pickup Roller
Print Media
Pickup Fook
Pickup Guide
Pickup Corner
Media Loaded
Plain Paper Feed
Manual Feed
Envelope Feed
Figure 4-28 Paper Separator
4-38
Part 4: Technical Reference
BJC-7100
4. PRINTER ELECTRICAL SYSTEM
4.1 Overview of Printer Electrical System
The printer's electrical system can functionally be split into the logic (logic board and
carriage board) and the power supply.
The logic converts the data received from the interface into print signals and printer
command signals, and drives the BJ cartridge and motors while monitoring the various
sensors.
The power supply distributes the DC input power from the AC adaptor into power
supplies to drive the logic board, motors, and print heads, etc.
When the AC adaptor is connected to a power outlet and a DC supply is therefore input
to the BJC-7100 printer (and the printer has not yet been turned on using the POWER
button), all buttons except the POWER button are inactive, the photointerrupter
sensors are inactive, and any signals input from the interface are ignored. In all other
respects, the hardware is active.
EEPROM
RESUME Switch
CNHEAD2
Error Indicator
POWER Switch
POWER Indicator
Cartridge REPLACE Switch
MPU
Control ROM
Printer Controller
CNHEAD1
Pickup Roller Sensor
Carriage Motor
CNCR
Carriage Motor Driver
Paper Feed Motor Driver
Purge Sensor
Paper End Sensor
AC Adaptor
CNLF
Paper Feed Motor
CNPWR
DRAM
CNPGS
Regulator
Reset IC
Figure 4-29 Printer Electrical System
4-39
Part 4: Technical Reference
BJC-7100
4.2 Logic
4.2.1 Logic block diagram
Address Bus
Address Data Bus
DBUS0
to
DBUS15
ABUS1
to
ABUS20
D0
to
RD
D15
INIT0 to INIT3
RD
INIT0 to INIT3
RESET
Parallel
Interface
Error Indicator
Power Indicator
Printer
Controller
(IC2)
IP0
A0
to
A9
IP1
PWMA,
PWMB
RAMB0
to
RAMB15
DRAM
Data
Bus
DRAM
Address
Bus
I/O0
to
I/O7
A0
to
A9
DRAM (IC6)
4-Mbit
Paper End
Sensor
P104
Pickup Roller
Sensor
P103
Purge Sensor
P102
D0
to
D15
A0
to
A18
OE
CE
Control
ROM
(IC3)
MPU
(IC1)
2kbit
Driver IC
P137,
TA12 to TA15
TA04,TA05
TA10,TA11
EEPROM
Transistor
4-Mbit
I/O0
to
I/O7
RD
CS0
RESET
20MHz
LED0
to
LED2
DRAM (IC5)
Reset IC
A11
to
A30
Paper Feed
PM
Motor
Driver IC
Carriage
Motor
BZ
P155
POWER button
P156
RESUME button
P157
REPLACE button
T00 to T03
PM
P144 to P147
P73 to P75,T0
RAMA0
to
RAMA9
RANKOM
RANKBK
RANKPH
RANKCL
Buzzer
P105
AN6
AN7
P101
BE0 to 2
IDATAOM
IDATABK
IDATAPH
IDATACL
EVENE
ODDE
HEATEOM
HEATEBK
HEATEPH
HEATECL
LTCLK
LTRST
INKOUT
Ink-out
Detection
Circuit
Printer
Temperature
Sensor
ANT,PHANT
Home
Position
Sensor
ID1OM
ID1BK
ID1PH
ID1CL
ID2OM
ID2BK
ID2PH
ID2CL
Carriage Board
BJ Cartridge
Figure 4-30 Logic Board Block Diagram
4-40
Part 4: Technical Reference
BJC-7100
4.2.2 Logic components
1) MPU (IC1)
The MPU accommodates a 32-bit CPU, 25-bit address bus, 2KB work RAM, and nine
peripheral IO ports (interrupt controller, DMAC, timers, IO ports, AD converter,
DRAM controller, chip select controller, monitor timer, clock & power manager).
Internal CPU
The 32-bit CPU has 16 32-bit general-purpose registers and operates in sync with a
20MHz external clock input.
Address bus
The 25-bit address bus port is connected to the printer controller.
Data bus
The 16-bit data bus port for external devices is connected to the 8Mbit control ROM
and printer controller.
Internal RAM
The MPU has 2KB of internal RAM with 32-bit access.
Interrupt controller
The MPU has 21 interrupt request factors and 5 external interrupt factors, each
triggering interrupt processing.
Direct memory access (DMA) controller
The MPU has a 4-channel DMA controller that supports a 64MB address space.
Timer (stepping motor controller/sense signal controller)/monitor timer
The timer has two realtime port timer channels and seven multifunction timer
channels, which are connected to the respective sensors and motor drivers.
The stepping motor controller outputs double 1-2 phase excitation drive signals for
the carriage motor and 2-phase excitation drive signals for the paper feed motor.
The monitor timer monitors the signals at the realtime port timer terminals.
IO ports
The IO ports input receive data, output send data, input and output send requests, input
and output transmission clock requests, and input and output the transmission clock.
AD converter
The following analog signals are detected via the internal AD converter.
AN0: Ink optimizer head temperature detection from the head temperature sensor in
the BJ cartridge.
AN1: Black head temperature detection from the head temperature sensor in the BJ
cartridge.
AN2: Photo head temperature detection from the head temperature sensor in the BJ
cartridge.
AN3: Color head temperature detection from the head temperature sensor in the BJ
cartridge.
AN4: VH voltage detection from the AC adaptor via the printer controller.
AN5: Head rank detection from the rank resistor in the BJ cartridge via the printer
controller.
AN6: Ink-out detection from the antenna on the carriage.
AN7: Printer temperature detection from the thermistor on the control board.
4-41
Part 4: Technical Reference
BJC-7100
DRAM controller
The DRAM controller controls the 10-bit addressing, reading/writing, RAS/CAS, and
refresh of the 8Mbit DRAMs (4Mbit ×2).
Chip select controller
The chip select controller shows that a valid address has been output for the set
area. The chip select controller is connected to the CARTRIDGE button, RESUME
button, POWER button, and printer controller.
Clock & power manager
The clock and power manager controls the transition to low power-consumption
mode. The WAKE UP pin is connected to the reset IC, and inputs the request to
wake up from low power-consumption mode.
2) Printer controller (IC2)
The printer controller includes the CPU interface, DRAM interface, Centronics interface
controller, print head controller, data processing controller, and IO ports, etc.
CPU interface
The CPU interface controls the writing to and reading from the CPU in sync with a
20MHz external clock input.
DRAM interface
The DRAM interface controls the 10-bit address and 16-bit data bus, the reading
and writing, RAS/CAS, and refresh of the 8Mbit DRAM through the DRAM bus,
which is independent of the MPU bus.
Centronics interface controller
The Centronics interface controller uses handshaking using the BUSY and ACKNLG
signals to receive the 8-bit parallel data sent in sync with the data strobe (STROBE)
signal from the host PC. It also controls the other interface signals. The data
received from the interfaces is stored in the DRAM receive buffer. The MPU analysis
this data and, if deemed to be print data, it is processed by the DMA.
When the printer initialize (INIT) signal is input from the interface, the Centronics
interface controller outputs a BUSY signal. When INT0 is output to the MPU, the
printer is initialized after any print data in the print buffer has been printed.
Print head controller
To drive the print head, the print head controller outputs the block signal and heat
enable signal at the same time as the print data read from the DRAM print buffer is
sent as serial data to the print head.
The transfer of print data (IDATA OM, IDATA BK, IDATA PH, IDATA CL) to the print
head is synchronized to the 5MHz clock HDCLK signal. The block signals (BE0,
BE1, BE2, ODDE, and EVENE), the pulse signals (HEAT OM, HEAT BK, HEAT PH,
and HEAT CL), and the head temperature signals (SHON OM, SHON BK, SHON, PH,
and SHON CL) are output to drive the print head.
Data processing controller
The data processing controller processes the data in the print buffer by DMA.
The data processing controller performs palette expand processing of the print data
for photo printing, 1200dpi smoothing, and conversion of the raster print data into
column oriented print data
4-42
Part 4: Technical Reference
BJC-7100
IO ports
The BJ cartridge rank signals, etc., are input to the IO ports. The power indicator
and error indicator lighting control signals, etc., are output from the output ports.
3) Control ROM (IC3)
The 8Mbit control ROM contains the printer control program.
4) DRAMs (IC5 and IC6)
The 8Mbit DRAMs (4Mbit ×2), which are controlled by the printer controller, are
used as the receive buffer, download buffer, print buffer, and working area.
5) Reset IC (IC8)
The reset IC senses the supply voltage when the power is turned on or when it is
interrupted, and resets the MPU and printer controller.
6) EEPROM (IC7)
The 2Kbit EEPROM, which is controlled by the printer controller, stores the various
printer settings, total waste ink amount, page count, print head removal/
installation count, and resume count, etc.
7) Paper feed motor driver (IC14)
The paper feed motor driver, which is controlled by the MPU, performs constant
current bipolar drive of the paper feed motor, which is controlled using 2-phase
excitation. There are two drive circuits in the IC.
8) Carriage motor driver (IC13)
The carriage motor driver, which is controlled by the MPU, performs constant
current bipolar drive of the carriage motor, which is controlled using double 1-2phase excitation.
The carriage motor switches the peak current among 5 steps according to the
switching signals from the MPU to maintain optimum carriage motor drive. There is
one drive circuit in the IC.
Mechanical
System
Carriage
Feed Roller
Black
BJ Cartridge
Purge Unit
Home Position
Sensor
Purge Sensor
Sheet Feeder
Paper Feed
Motor
Electrical System
Pickup Roller
Sensor
Paper End
Sensor
CNPGS
CNLF
Carriage
Motor
CNCR
Printer
Temperature
Sensor
JENG1
CNHEAD1
Color/Photo
BJ Cartridge
Ink-out
Detection
Circuit
JENG2
CNHEAD2
AC Adaptor
AC Plug
CNPWR
DC Inlet
VCC
VH
VM
Mechanism
Control
(+5VDC)
(+20VDC)
(+27.6VDC)
Carriage
Control
Logic Board
Interface
Control
Indicator
Control
Switch
Detection
CNIF
Indicators
Control Buttons
Figure 4-31 Printer Block Diagram
4-43
Part 4: Technical Reference
BJC-7100
VCC
R23
1,1/4W
R24
1,1/4W
R13
1,1/4W
MPU
IC1
M31002S2HP
TA15
TA14
TA13
TA12
TA03
TA02
TA01
TA00
P137
5
6
7
8
13
14
15
16
147
LFPA
LFPB
LFIA0
LFIA1
CRPA
CRPB
CRAENA
CRBENA
LFPWMA
R20
1,1/4W
R21
1,1/4W
R14
1,1/4W
R19
10K,
1/16W
VCC
R18
10K,1/16W
CARRIAGE
MOTOR DRIVER
IC13
1
3
5
7
9
11
13
15
17
19
21
23
25
27
VsA
ALARM
PhaseA
LGA
N.C.
RsA
PG
N.C.
RsB
N.C.
LGB
PhaseB
Vcc
VsB
VrefA
CR
ENAA
VmmA
Out1
Out2
Out3
N.C.
Out4
VmmB
ENAB
Decay
VrefB
2
4
6
8
10
12
14
16
18
20
22
24
26
C61
R17 2.7K,
4700p,50V 0.5%,1/10W
FU2
ICP-N25
50V 1A
R37
1,1/4W
R38
1,1/4W
IP0
IP1
PWMB
PWMA
19
20
111
112
IP0
IP1
CRPWMB
CRPWMA
R39
1,1/4W
R40
1,1/4W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VmmA
N.C.
Out1
N.C.
RsA
N.C.
Out2
Out3
N.C.
RsB
N.C.
Out4
N.C.
VmmB
LGB
GND
GND
LGA
ENAA
PHAA
CR
ALARM
VrefA
VsA
VsB
VrefB
Vcc
Decay
PHAB
ENAB
MTD2005FB
R27 30K,
0.5%,1/10W
R33
10K,1/16W
FU1
ICP-N38
R32
10K,1/16W
VCC
R29 30K,
0.5%,1/10W
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
CRA
CRB
CRB
CRA
1
2
3
4
VCC
VCC
R251
R26
3.3K,1/10W 3.3K,1/10W
CNCR
VM
R15 2.7K,
0.5%,1/10W
VM
C68
0.01µ,50V
VCC
MTD2005B
PAPER FEED
MOTOR DRIVER
IC14
C69
0.01µ,50V
Approx.
8.3Ω/
phase
CARRIAGE MOTOR
R28
3.3K,1/10W
C70
0.01µ,
50V
R253
3.3K,
1/10W
C71
0.01µ,50V
R44
10K,1/16W
R46
10K,
1/16W
R43
10K,
1/16W
VCC
C72
4700p,50V
R45
10K,1/16W
M66361-0006FP
R241
16K,
0.5%,
1/10W
C74
0.01µ,
50V
C75
0.01µ,
50V
R242
3.3K,
1/10W
R252
3.3K,
1/10W
CNLF
1
2
3
4
PRINTER
CONTROLLER
IC2
R238
1.5K,
0.5%,
1/10W
LFA
LFB
LFB
LFA
Approx.
6.0Ω/
phase
PAPER FEED MOTOR
Figure 4-32 Motor Drive Circuit
4-44
Part 4: Technical Reference
BJC-7100
4.3 Electrical System
4.3.1 Input power supply (AC adaptor)
The AC adaptor supplies the voltages to the printer power supply circuit.
The AC adaptor outputs three DC voltages: Vcc: 5.0VDC, BJ head drive VH: 20VDC,
motor drive VM: 27.6VDC.
The AC adaptor is mounted on the back of the printer so that the DC output pins of
the AC adaptor align with the DC power cable of the printer.
1 3 5
7
2 4 6
8
1
2
3
4
20.0V
GND
27.6V
GND
5
6
7
8
5.0V
GND
VHON
GND
Figure 4-33 AC Adaptor Output Voltages
4.3.2 Output voltages
1) Vcc (5±0.25V)
The Vcc supplied from the input power supply is used as the pullup voltage for the
POWER button, and to drive the beeper. In addition, the Vcc is distributed as
+5VDC power to the MPU, printer controller, EEPROM, control ROM, DRAMs, motor
driver, and other ICs such as the reset IC, and for operating the ink-out detection
circuit. (VDDH, Vcc2, Vcc3, Vcc4, Vcc5, Vcc6)
2) VH (20±0.3VDC)
The VH is supplied to the print head.
The VH output voltage is supplied to the BJ cartridge subheater temperature driver
transistor and driver transistors in the nozzles.
3) VH (27.6±1.5VDC)
The VM is output as is and used to drive the carriage motor driver and paper feed
motor driver.
4-45
Part 4: Technical Reference
BJC-7100
5. DETECTION FUNCTIONS
5.1 Sensor-based Detection Functions
The BJC-7000 has the following sensors for detecting the printer status.
Head Temperature Sensor
No.26
No.2
Home Position Sensor
No.2
No.26
Pickup Roller Sensor (left)
Paper End Sensor (right)
Printer Temperature
Sensor
Purge Sensor
Figure 4-34 Sensor Positions
4-46
Part 4: Technical Reference
BJC-7100
Purge sensor
The purge sensor uses a transmission-type photointerrupter to detect the capping
position of the purge unit. When the flag on the cam gear in the purge unit interrupts
the purge sensor, the module phase is deemed to be in the capping position.
Paper end sensor
The paper end sensor uses a transmission-type photointerrupter to detect the presence
of paper in the paper feed system. When the paper presses against the paper end
sensor arm, the paper end sensor is interrupted, indicating that paper has been picked
up by the paper feed system.
Pickup roller sensor
The pickup roller sensor uses a transmission-type photointerrupter to detect the initial
position of the pickup roller of the sheet feeder. When the flag in the pickup roller
interrupts the pickup roller sensor, the pickup roller is deemed to be in the initial
position.
Home position sensor
The home position sensor uses a transmission-type photointerrupter to detect the
home position of the carriage. When the home position edge of the chassis interrupts
the home position sensor on the carriage board, the carriage is deemed to be in the
home position.
Printer temperature sensor
The thermistor on the carriage board detects the temperature inside the printer.
The printer fetches the voltage output by the printer temperature sensor. This voltage,
which varies according to the temperature, is converted from analog to digital to
determine the printer temperature. The temperatures detected by the printer
temperature sensor and the head temperature sensor are used to control the printer to
achieve optimum printing, and to prevent overheating.
The head temperature sensors are built into the heater boards of the
respective print heads. See Part 4, section 3.2.2, "Structure of BJ head unit"
(page 4-19) for details.
The printer decides if an error has occurred from the readings from the
various sensors. For details, see Part 3, section 3.1.2, "Service calls" (page 315).
The states of the purge sensor, paper end sensor, pickup roller sensor,
and home position sensor are detected by the MPU's input ports. The
detection signal is inverted according to whether the sensor is interrupted
or open.
4-47
Part 4: Technical Reference
BJC-7100
5.2 Miscellaneous Detection Functions
In addition to sensor-based detection functions, the BJC-7100 printer also has the
following detection functions.
5.2.1 Waste-ink amount detection
This function processes the amount of waste ink (and ink optimizer) in the waste ink
absorbers.
The printer stores the total waste ink amount absorbed by the waste ink absorbers
from cleaning and maintenance jet operations in the EEPROM on the logic board.
Post-absorption evaporation is taken into account when calculating the amount. The
total waste ink amount is updated when the power is turned off, on completion of
cleaning operations, and when a page is output. When the waste ink amount
approaches the absorber's capacity, the printer stops printing.
When the waste ink amount (or ink optimizer amount) reaches 95% of the
waste ink absorber capacity, the printer generates a waste ink alarm (operator
call). You can press the RESUME button to continue operating the printer.
When the waste ink amount (or ink optimizer amount) subsequently
reaches 100% absorber capacity, the printer outputs a waste-ink full error
(service call) to prevent ink leaks.
5.2.2 BJ cartridge detection
The detection signals from the index unit in the print head heater board are used to
detect the presence and type of BJ cartridge.
For details, see Part 4, section 3.2.6, "BJ cartridge detection" (page 4-28).
5.2.3 Ink-out detection
1) Detection operation
An ink-out detection pulse is output to the ink paths in the ink room in the head
holder. The pulse is transmitted via the ink path to the ink sponges and received by
the electrode on the carriage. It is then amplified by the carriage board and read by
the AD board of the MPU, and converted from analog to digital to detect the
existence of ink.
The electrode is located opposite the ink room in the head holder.
2) Timing processing
Ink-out detection is performed for all inks in a single sweep in the following order:
ink optimizer, black ink, color ink, and photo ink.
In the case of the color and photo inks, detection proceeds from yellow through
magenta to cyan. Post ink-out detection processing differs according to the timing.
TABLE 4-9 INK-OUT DETECTION TIMING
Detection timing
• When power turned on using
POWER button
• After page is output
• After all cleaning operations
• When head overheat is detected
Post ink-out detection processing
Cleaning *
Cleaning *
Transition to ink-out error (operator call)
See Part 4, section 2.5, "Head Overheat
Protection" (page 4-12) for details.
*: The cleaning operation differs according to which ink has run out.
See Part 4, section 3.3.1, "Function of purge unit" (page 4-29) for details.
4-48
Part 4: Technical Reference
BJC-7100
3) Ink-out error display
When an ink-out error occurs, replace either the BJ cartridge or ink tanks by either
pressing the REPLACE button on the printer or using the printer driver utility.
The cartridge or tank replacement procedure is as follows:
1) If the black ink or ink optimizer has run out, the ERROR indicator turns ON and
the beeper sounds 3 times. If the color or photo inks have run out, the beeper
sounds 4 times.
If you press the RESUME button, the beeper sounds again so that you can know
which ink has run out.
2) Press the REPLACE button to move the carriage to the cartridge replacement
position so that you can replace the appropriate BJ cartridge or ink tank.
If there is any print data in the receive buffer, the printer restarts printing.
An ink-out error message is displayed on the utility sheet of the printer driver to
indicate the ink that has run out.
Follow the instructions displayed on the host PC's screen to replace the BJ cartridge
or ink tank.
When using the bidirectional interface, the head alignment mode is automatically
selected after the BJ cartridge has been replaced. Follow the instructions on the PC
screen to align the print heads.
Ink-out detection is designed to inform the operator that the ink has run
out. This function does not automatically halt printing before the ink
actually runs out or before print faults develop due to bubbles in the ink
paths.
After replacing a BJ cartridge, be sure to align the BJ cartridges.
If you deal with the ink-out error at the printer rather than using the
printer driver, or if you use the printer driver utility, but the interface in
use is not bidirectional, head alignment mode is not automatically
selected. It is therefore necessary to manually select head alignment mode
and align the heads. See Part 3, section 1.3.3, "Installing the BJ cartridge"
(page 3-4) for details of head alignment.
Note that the ink-out detection can be disabled using the printer driver's
hidden functions.
See Part 3, section 3.3.2 "Service mode of printer driver" (page 3-18) for details
of the printer driver's service mode.
4-49
Part 4: Technical Reference
BJC-7100
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4-50
Part 5
MAINTENANCE
Page
5- 1
5- 1
5- 1
5- 1
5- 1
5- 2
5- 2
5- 3
5- 4
5- 4
5- 4
5- 6
5- 7
5- 8
5- 8
5 -13
5 -13
5 -14
5 -37
5 -37
5 -39
5 -44
5 -44
5 -47
1. MAINTENANCE
1.1 Parts for Periodic Replacement
1.2 Consumable Parts
1.3 Consumables
1.4 Periodic Maintenance
2. SERVICING TOOLS
2.1 List of Tools
3. APPLYING GREASE
4. DISASSEMBLY AND REASSEMBLY
4.1 Disassembly and Reassembly
4.2 Notes on Disassembly and Reassembly
4.3 Waste Ink Absorbers
4.4 Assembling the Chassis
5. ADJUSTMENTS
5.1 Adjustment Locations
6. TROUBLESHOOTING
6.1 Troubleshooting Overview
6.2 Diagnosis
7. CONNECTOR LAYOUT AND SIGNAL ASSIGNMENT
7.1 Logic Board
7.2 Carriage Board
8. CIRCUIT DIAGRAMS
8.1 Parts Layout
8.2 Circuit Diagrams
Part 5: Maintenance
BJC-7100
1. MAINTENANCE
1.1 Parts for Periodic Replacement
Level
User
Service personnel
Part
None
None
1.2 Consumable Parts
Level
User
Service personnel
Consumable
None
Spur/Spur cleaner/spur unit
Replacement Guide
When spur marks become evident
1.3 Consumables
Level
User
Service personnel
Consumable
Black BJ cartridge [BC-60]
Color BJ cartridge [BC-61]
Photo BJ cartridge [BC-62e Photo]
Ink tank for color BJ cartridge [BC-61 Color]
Ink tank for photo BJ cartridge [BCI-62 Photo]
None
1.4 Periodic Maintenance
Level
User
Service personnel
Location
None
None
The BJC-7100 uses a range of inks and an ink optimizer when printing on
plain paper in other than draft mode. The ink optimizer is an almost
colorless, transparent fluid.For simplicity in this manual, we refer to the
ink optimizer for plain paper simply as "ink optimizer" or just "optimizer".
We also refer to the various colored inks and the ink optimizer for plain
paper simply as "inks".
5-1
Part 5: Maintenance
BJC-7100
2. SERVICING TOOLS
2.1 List of Tools
Ordinary Tools
Phillips screwdriver
Blade screwdriver
Tweezers
Flat brush
Multimeter
For
For
For
For
For
Note
removing and replacing screws
removing plastic parts
removing and installing coil springs
applying grease (one per grease type)
troubleshooting
Special Tools (part No.)
Grease (MOLYKOTE PG-641)
(CK-0562)
Tension spring
(QY9-0046)
Gap gage 1.2mm
THICKNESS GAUGE KIT
(QY9-0030-000)
THICKNESS ADJUSTER
(QY9-0031-000)
Note
For application to specified locations (see Figure 5-1.)
For use when securing idler pulley (See Figure 5-9.)
For use when checking and adjusting plate-head gap
For use when checking and adjusting platen-head gap
(See Figure 5-15 to 5-20)
For use when checking and adjusting platen-head gap
(See Figure 5-15 to 5-20)
5-2
Part 5: Maintenance
BJC-7100
3. APPLYING GREASE
Apply the MOLYKOTE PG641 greases at the points shown below.
Smear a thin film of the appropriate amount of grease smoothly over the whole area to be
lubricated.
The BJC-7100 uses three types of grease. Only apply the specified grease
to the specified locations.
Never apply grease to locations other than those indicated. Also take care
that grease does not get onto parts neighboring the indicated locations.
MOLYKOTE PG641
Cam Gliding Surface
(approx. 24mg)
Rib Face (approx. 3mg)
Shaft Gliding Surface
(approx. 12mg)
Surfaces of Pinion
Gear Teeth
(approx. 30mg)
Gliding Surface
(approx. 24mg)
Around
Entire Shaft
(approx. 320mg)
Gear Teeth
(approx. 24mg
per gear)
Dubble Gear Side Surface
(approx. 10mg in each of 2 locations)
Bottom Shaft Gliding Surface
(approx. 20mg in each of 2 location)
Carriage Slider
Shaft
(approx. 12mg)
Inside of Shaft (approx. 12mg)
Between Gears and Transmission Arm
(approx. 30mg)
Figure 5-1 Grease Points
5-3
Part 5: Maintenance
BJC-7100
4. DISASSEMBLY AND REASSEMBLY
4.1 Disassembly and Reassembly
When disassembling or reassembling the printer, refer to the parts catalog.
The Figure No. of the illustrations in the parts catalog are in the order of the
disassembly sequence.
The parts catalog also contains close-up diagrams where additional care is required.
4.2 Notes on Disassembly and Reassembly
Note the following when disassembling or reassembling the printer.
4.2.1 Main cover
Before removing or installing the main cover, remove the connector cover. It is
extremely difficult to remove or reinstall the main cover, and parts can easily be
broken, when the connector cover is attached to it.
1
1
3
2
3
2
Figure 5-2 Main Cover and Connector Cover
4.2.2 Carriage unit
When the cartridges are installed and the power is OFF, the carriage is normally
locked in the capping position. The locking mechanism is in the purge unit and
prevents the carriage moving from the capping position exposing and potentially
damaging the print head while the printer is being shipped or moved.
When servicing the printer, you can manually release this lock using the following
procedure.
* : See CAUTION on page 1-13
Figure 5-3 Releasing the Carriage Lock
5-4
Part 5: Maintenance
BJC-7100
4.2.3 Bearings at ends of support shaft
The two bearings at the end of the support shaft are secured by fixing screws in placed
after being positioned at the factory. Never disassemble these bearings (except for head
gap adjustment). Red fixing screws are used to distinguish them form other screws.
The bearings need not be removed to remove the carriage.
Support Shaft
Red Screw
Head Alignment Adjuster Plate
Figure 5-4 Bearings at Ends of Support Shaft
4.2.4 Purge unit and bottom case assembly
When the purge unit is assembled with the bottom case, check that the two tubes from
the purge unit lead to the ink absorbers. Take care when assembling that the ends of
the tubes are clear; ink drying in the tubes would hinder purging.
Waste Ink Absorber
Upper: Ink Tube
Ink Optimizer Absorber
Red Marks
Lower: Ink Optimizer Tube
Figure 5-5 Purge Unit and Bottom Case Assembly
4.2.5 Securing idler pulley assembly screw
If you have loosened the idler pulley assembly screw, as when removing the carriage,
you must use the special tension spring (QY9-0046) when reassembling.
Before tightening the screw, move the carriage horizontally several times to equalize
the belt tension. *
After tightening the screws, remember to remove the tension spring.
Idler Pulley Assembly
Tension Spring
Screw
Carriage Belt
* : See CAUTION on Page 1-14.
a
Figure 5-6 Tightening Idler Pulley Assembly Screw
5-5
Part 5: Maintenance
BJC-7100
4.3 Waste Ink Absorbers
If you are replacing the waste ink absorber (and/or waste ink optimizer absorber)
because of a waste ink alarm or waste-ink full error, replace both top and bottom
absorbers together. Also replace the absorbers for the maintenance jets. In other
cases, replace both top and bottom absorbers if possible even when there is
comparatively little waste ink. For various manufacturing reasons, several different
materials are used for the waste ink absorbers. If you replace only one of the
absorbers, the top and bottom may be of different materials, which could result in
problems. (All service parts absorbers are of the same material. Differences in
materials are visually apparent.)
Clean the absorber cover if necessary.
Be sure to reset the EEPROM when you replace the waste ink absorbers. If you do not
reset the EEPROM, the waste ink alarm or waste ink full error will not be cancelled.
See "Part 3: 3.8.2 Resetting EEPROM data" (page 3-22) for details of how to reset the
EEPROM.
Maintenance Jet Absorber
for Ink Optimizer
Waste Ink and Waste Ink
Optimizer Absorber (Upper)
Maintenance Jet Absorber
for Ink
Waste Ink and Waste Ink
Optimizer Absorber
(Lower)
Figure 5-7 Maintenance Jet and Waste Ink Absorbers
5-6
Part 5: Maintenance
BJC-7100
4.4 Assembling the Chassis
Follow the procedure below to tighten the following screws (total 9 screws securing
front chassis unit and rear chassis) after you have replaced parts.
2
4
7
6
A
5
A
3
1
Rear Chassis
Bosses
Front Chassis Unit
Figure 5-8 Tightening the Chassis Fixing Screws
1) When both the front chassis unit and rear chassis have been removed from the body,
fit the rear chassis onto the body first.
2) After you have fitted the front chassis unit and rear chassis onto the body, attach the
nine screws. When you start attaching the screws, leave them in a loose state.
3) First, tighten two screws (A) on the front of the front chassis unit. Before you tighten
these screws, make sure that the bosses to the outside of these screws are properly
fitted in place.
4) Alternately tighten four screws (1) (2) (3) and (4) on both ends of the front chassis
unit.
5) Tighten three screws (5) (6) and (7) on the rear chassis in that order.
6) Firmly tighten all screws again.
5-7
Part 5: Maintenance
BJC-7100
5. ADJUSTMENTS
5.1 Adjustment Locations
5.1.1 Adjusting registration
Adjust the registration along the horizontal and vertical directions using the printer
driver. This adjustment is the same as the operation when the user installs the
printer or replaces the BJ cartridge. For details, see "Part 3: 1.3.3 3) Aligning the print
heads" (page 3-5).
5.1.2 Checking and adjusting the head gap
Check that the head gap is correct when you have loosened the following screws, for
example during replacement of parts, or when the printer has been strongly impacted
for example by its being dropped.
This check is also necessary if the paper scrapes against the head during printing or
when color drifts frequently.
The head gap must be adjusted if it has deviated out of the allowable range of 1.2 to
1.6 mm.
BJ Head
1.2mm to 1.6mm
Head Gap
Paper
Figure 5-9 Screws Influencing Head Gap
The following tools are required for checking and adjusting the head gap.
Thickness gauge 1.2 mm (QY9-0016-000)
Thickness gauge kit (QY9-0030-000)
Adjustment knob (QY9-0031-000)
BJ cartridges (tester)
Used for checking the head gap
Used for checking and adjusting the head gap
Used for adjusting the head gap
Prepare this as a special tool
You can substitute the above thickness gages, if not available, with commercially
available ones capable of measuring 1.2 mm, 1.4 mm and 1.6 mm gaps.
1. Checking the Head Gap
Follow the procedure below to check the head gap.
1) Remove the AC adapter, top case and sheet feeder unit from the printer, and
make sure that the cartridge is locked. Attach both service BJ cartridges.
Also, disconnect the CR motor connector from the logic board. If the carriage is
moved manually with the CR motor still connected to the logic board, the
electromotive force of the motor may damage the logic board.
5-8
Part 5: Maintenance
BJC-7100
2) Insert the measuring sheet into the manual paper feed slot. With the platen held
down in position, align the left of the measuring sheet with the paper guides on
the printer. Then, insert the measuring sheet until its leading edge is hooked on
the spurs (see figure below) taking care not to deform the spurs.
Measuring Sheet
Push here
Figure 5-10 Measuring Sheet Setting 1
3) Gently press down on both ends of the platen, and then quickly release your
hands. Repeat this two or three times to stabilize the platen position. Be sure to
carry out this step. Otherwise, the head gap cannot be measured correctly.
Push down gently
Release quickly
Figure 5-11 Measuring Sheet Setting 2
5-9
Part 5: Maintenance
BJC-7100
4) Place the thickness gage on the measuring sheet as shown in the figure below.
Figure 5-12 Thickness Gauge Setting
5) Move the carriage with your fingers gripping the carriage belt as shown in the
figure below. Follow the flowchart on the following page for details on the
checking order.
Figure 5-13 Check the Head Gap
5-10
Part 5: Maintenance
BJC-7100
2. Head Gap Check/Adjustment Flowchart
Check results are categorized into three types as follows:
A: The head clearly contacts the thickness gage, and the thickness gage is moved
pressed against the head.
B: The head barely contacts the thickness gage, and the thickness gage moves very
slightly.
C: The head does not contact the thickness gage at all, and the thickness does not
move at all.
START
Check head gap using
1.4mm gage.
A
B
Check head gap using
1.2mm gage
Result?
C
Result?
Check head gap using
1.7mm gage
C
Result?
A•B
B•C
A
Check head gap using
1.5mm gage
A•B
Adjustment required
Result?
C
No problem
(adjustment not required)
Adjustment required
3. Adjusting the Head Gap
Follow the procedure below to adjust the head gap if required.
1) Loosen the red screws, and turn the adjust plate so that the support shaft is at
the topmost position.
Figure 5-14 Adjust the Head Gap 1
5-11
Part 5: Maintenance
BJC-7100
2) Gently press down on both ends of the platen, and then quickly release your
hands. Repeat this two or three times to stabilize the platen position. Be sure to
carry out this step. Otherwise, the head gap cannot be measured correctly.
3) Place the 1.4 mm thickness gage on the measuring sheet.
4) Move the carriage with your fingers gripping the carriage belt as shown in the
figure below. Turn the adjust plate a little at a time by the adjustment knob as
you move the carriage to the left and right. Adjust the adjust plate so that the BJ
Head barely contacts the thickness gage, and then temporarily tighten the red
screws.
Figure 5-15 Adjust the Head Gap 2
5) Repeat the above procedure three times alternately on the left and right ends.
Last of all, firmly tighten the red screws to fix the adjust plate in place.
5-12
Part 5: Maintenance
BJC-7100
6. TROUBLESHOOTING
6.1 Troubleshooting Overview
6.1.1 Overview
This chapter consists of the following two sections: "Diagnosis" and "Action."
If you do not know the cause of a problem, consult the "Diagnosis" section. If you do
know the cause, follow the instructions in the "Action" section.
6.1.2 Troubleshooting cautions
1. Before starting diagnostic procedures, check that all connectors and cables are
correctly connected. This is especially important if faults occur randomly.
2. If you are diagnosing faults with the printer covers removed and the AC adaptor
connected, be extremely careful to avoid electric shock to prevent shorting the
boards.
3. Follow the flowcharts when troubleshooting.
4. When diagnosing faults concerning print quality and paper feed, first check that
Start/End
Operation
Judgement
Action/Replace
Jump
Stop
the installation location and print media satisfy the specifications, that the print
media is loaded correctly, and that the printer driver parameters are set correctly,
etc.
5. If you replace or service a part, be sure to make a test print to check that the fault
has been remedied.
6. The flowcharts may indicate a number of possible actions to be taken in
troubleshooting and correcting a fault. These actions are indicated in the order
required to remedy the problem.
After each step, make a test print to see if the fault has been corrected and, if not,
proceed to the next step.
Example 1
Countermeasure 1: After checking or replacing the carriage cable, make a test print
to check that the printer is functioning normally.
If the fault is not corrected, advance to step 2, "Replace carriage unit", and if the
problem is still not corrected, go to step 3, "Replace logic board."
7. On completion of troubleshooting, check that you have reconnected all connectors
1. Check/replace
carriage cable
2. Replace carriage unit
3. Replace logic board
and tightened any loosened screws, etc.
5-13
Part 5: Maintenance
BJC-7100
6.2 Diagnosis
6.2.1 Diagnostic flow
START
Connect power cable of
AC adaptor to wall outlet.
(Hard power ON)
ROM check
RAM check
EEPROM check
Turn power ON.
(Soft power ON)
OK?
No
Beeper
ERROR indicator
EEPROM error
8 times
Blinks 9 times
5-21
ROM error
8 times
Blinks 10 times
5-21
RAM error
8 times
Blinks 11 times
5-21
Reference page
Yes
Paper check
(Paper-end sensor)
Is paper loaded?
Reference page
No
Beeper
ERROR indicator
Twice
ON
Beeper
ERROR indicator
8 times
Blinks 4 times
Beeper
ERROR indicator
Home position error
8 times
Blinks 3 times
5-18
Print alignment error
8 times
Blinks twice
5-16
Beeper
ERROR indicator
8 times
Blinks 5 times
Yes
Paper-out/paper-jam error
5-24
Purge unit decapping
OK?
No
Yes
Purge error
Reference page
5-18
Detection of carriage
in home position
OK?
No
Yes
Sheet feeder initialization
OK?
Reference page
No
Yes
Sheet feeder error
A
5-14
Reference page
5-19
Part 5: Maintenance
BJC-7100
A
Paper output operation
OK?
No
Yes
Paper-jam error
Beeper
ERROR indicator
Twice
ON
Beeper
ERROR indicator
8 times
Blinks 7 times
Beeper
ERROR indicator
8 times
Blinks 4 times
Reference page
5-24
Waste ink check
OK?
No
Yes
Waste ink-full error
Reference page
5-21
Purge unit initialization
OK?
No
Yes
Purge error
Reference page
5-18
BJ cartridge check
Printer temperature check
OK?
No
Beeper
ERROR indicator
BJ cartridge error
5 times
ON
5-28
Printer temperature error
8 times
Blinks 6 times
5-20
Beeper
ERROR indicator
3 times
ON
BC-60
4 times
ON
BC-61
5-26
/BC-62e Photo
Yes
Reference page
Auto cleaning operation
Ink-out check
Is there any ink?
No
Yes
Ink-out error
Waste ink check
OK?
(Displayed during paper feed
operation after the printer
has been in standby mode)
Reference page
5-26
No
Beeper
ERROR indicator
Waste-ink alarm
6 times
ON
5-21
Waste ink-full error
8 times
Blinks 7 times
5-21
Yes
END
5-15
Reference page
Part 5: Maintenance
BJC-7100
6.2.2 Action
a) Error displays
1. Print Position
Correction Error
Buzzer: 8 times
ERROR indicator: Blinks twice
<Cause> During initialization, the carriage print position is not
corrected. (The differential between the carriage travel
in each direction is outside the correction range.)
<Suspected parts> Carriage unit, carriage belt,
carriage cable, carriage shaft,
guide rail, idler pulley, logic board
<Measure>
Visually check
carriage drive.
OK?
No
Yes
• Check for paper jams, wear and tear and removal of carriage belt;
• Carriage with faulty idler pulley assembly operation;
• Carriage shaft distortion, scratches, insufficient lubrication, etc.
• Does the carriage move smoothly when moved manually?
See "4. 2. 2 Carriage unit" (page 5-4) for how to release the carriage lock.
Service or replace
faulty part.
Reconnect power supply.
• Does the carriage motor run during initialization?
• Is the carriage drive out of sync?
• Are there any problems in the carriage belt or idler pulley?
• Are there any abnormal noises?
Check operation
of carriage drive.
OK?
No
Yes
A
*: See "CAUTION" on page 1-14.
Check home position
sensor.
OK?
Measuring point
Sensor
Normal value
IC1 (MPU)
Open
Low level
Pin No. 28
Closed
High level (sensing)
• Check the measuring point while manually moving
the carriage with the power ON. (This is easier with
the sheet feeder removed.)
No
Measuring point
Carriage ribbon cable (28pin)
Yes
Check carriage cable
conductivity.
Pin Nos. 6 and 7
28
1
7
6
No
OK?
Yes
Replace logic board.
Replace carriage unit.
• Faulty MPU
• Faulty PCB
soldering/conductivity
• Faulty carriage board.
5-16
Replace carriage cable.
Part 5: Maintenance
BJC-7100
A
Check motor drive voltage.
3
5
7
2
4
6
8
Measuring point
Normal value
Logic board CNPWR
27.6 ± 1.5VDC (no load max 33V)
Pin No. 3
OK?
1
No
Yes
• Check the connection and conductivity
of the power cable that links the logic
board with the AC adaptor.
Check power cable.
Logic board side
No
OK?
Yes
AC adaptor side
Replace AC adaptor.
Replace power cable.
Check carriage motor.
1
Red
Blue
Orange
Yellow
1
2
3
4
A
B
B
A
Approx.
8.3Ω/phase
4
Carriage motor
Measuring point
1-4
CNCR
2-3
OK?
Normal value
Approx. 8.3Ω
No
Yes
Replace logic board.
Replace carriage motor.
• Faulty motor driver IC
• Faulty MPU
• Faulty PCB
soldering/conductivity
5-17
Part 5: Maintenance
BJC-7100
<Cause> Cannot detect home position.
<Suspected parts> Carriage unit, carriage belt,
2. Home Position
Error
carriage cable, carriage shaft,
guide rail, idler pulley, logic board
Beeper: 8 times
ERROR indicator: Blinks 3 times
<Measure> 1. See Print Position Correction Error (page 5-17).
<Cause> Cleaning not performed normally.
<Suspected parts> Purge unit, purge sensor,
3. Purge Error
purge sensor cable,
paper feed motor drive transmission
gear, logic board
Beeper: 8 times
ERROR indicator: Blinks 4 times
<Measure>
• Check the connection of the purge sensor cable connector (purge
sensor and logic board ends), and the conductivity of the joint cable.
Check purge sensor cable.
OK?
No
Yes
Reconnect/replace
purge sensor cable.
Check purge sensor.
OK?
No
Measuring point
Sensor
Normal value
IC1 (MPU)
Open
Low level
Pin No. 27
Closed
High level
• With the power ON, remove the purge
unit and manually rotate the drive gear
to open and close the sensor, and check
the measuring point.
Yes
Replace purge sensor.
• With the purge unit removed, manually rotate the drive gear in
both directions to check that it moves smoothly.
Check purge unit
operation.
OK?
Yes
No
Service/replace
the purge unit.
Check and service platen
paper feed motor drive
transmission gear.
5-18
Part 5: Maintenance
BJC-7100
<Cause> Sheet feeder not initialized during printer initialization.
<Suspected parts> Sheet feeder unit, pickup roller,
4. Sheet Feeder
Error
sheet feeder drive gear,
paper feed motor drive transmission
gear, slide lock lever, logic board
Beeper: 8 times
ERROR indicator: Blinks 5 times
<Measure>
Turn on power again.
• Check the movements of the parts (gears, etc.) inside the sheet
feeder.
Visually check operation
of sheet feeder drive.
Does error recur?
No
Yes
Turn the power on and
off several times, and quit
if the error does not recur.
• Remove the sheet feeder unit and manually rotate the drive gears
to check that the pickup roller, etc., operates correctly and smoothly.
Check operation
of sheet feeder unit.
OK?
No
Yes
Service/replace
faulty parts.
• Visually check the appearance and operation of the paper feed
rollers and power switching gears, which transmit the power of
the paper feed motor.
• Simultaneously check the operation of the purge unit's slide lock
lever, which locks the power switching unit.
Check platen paper
feed motor drive
transmission gear.
OK?
Yes
No
Service/replace
faulty parts.
Replace logic board.
• Faulty pickup roller
sensor
• Faulty MPU
• Faulty PCB
soldering/conductivity
5-19
Part 5: Maintenance
BJC-7100
5. Printer
Temperature Error
<Cause> Thermistor (TH1) on carriage board detects higher
than prescribed temperature limit.
<Suspected parts> Carriage unit, carriage cable, logic board
Beeper: 8 times
ERROR indicator: Blinks 6 times
<Measure>
Turn OFF the power and
wait for several minutes.
Check the ambient
conditions.
Within specs?
No
Yes
Use the printer under
ambient conditions
within specifications.
Turn ON power.
Does error recur?
No
Yes
END
Check conductivity of
TEMP signal line.
Measuring point
Normal value
-
IC1 (MPU) Pin No. 154
TH1
OK?
Approx. 4Ω
No
Check contact and
conductivity of
carriage cable.
Yes
Check thermistor (TH1).
OK?
No
Yes
Measuring point Normal value
Reconnect/replace
carriage cable.
TH1 resistance 50 ± 2.5Ω (25˚C)
• Check the measuring point with
the carriage cable removed.
Check conductivity of
carriage board.
OK?
No
Yes
OK?
No
Yes
Replace carriage unit.
Replace logic board.
• Faulty MPU
• Faulty PCB
soldering/conductivity
5-20
Part 5: Maintenance
BJC-7100
<Cause> The waste ink absorbers are 95% full (alarm) or 100%
6. Waste Ink
Alarm/Full Error
full (full error).
<Suspected parts> Waste ink absorbers, logic board
(EEPROM)
Beeper: 6 times
ERROR indicator: ON (alarm)
Beeper: 8 times
ERROR indicator: Blinks 7 times
(full error)
<Measure>
Visually check
waste ink absorbers.
Full?
No
Yes
Replace logic board.
Replace waste ink
absorbers.
Replace waste ink
absorbers and
reset EEPROM.
• There is a risk of the EEPROM data
being incorrect. If you replace the
Logic Board, also replace the waste
ink absorbers.
• See "Part 3: 3.8.2 Resetting EEPROM data" (page 3-22) for details of
how to reset the EEPROM.
7. EEPROM Error
Beeper: 8 times
ERROR indicator: Blinks 9 times
<Cause> Contents of EEPROM cannot be read correctly during
initial check.
<Suspected parts> EEPROM (IC7) and logic board.
<Measure> Replace the logic board and waste ink absorbers (including the maintenance jet
absorbers).
8. ROM Error
<Cause> Contents of control ROM (IC3) cannot be read
normally during initial check.
<Suspected parts> Control ROM (IC3) and logic board.
Beeper: 8 times
ERROR indicator: Blinks 10 times
<Measure> Replace the control ROM (IC3), or logic board.
9. RAM Error
<Cause> Read/writing to DRAMs (IC5 and IC6) was not normal
during initial check.
<Suspected parts> DRAMs (IC5 and IC6) and logic board.
Beeper: 8 times
ERROR indicator: Blinks 11 times
<Measure> Replace the logic board.
5-21
Part 5: Maintenance
BJC-7100
<Cause> Overheating of carriage motor driver (IC13)
<Suspected parts> Carriage motor driver (IC13), logic board,
10. CR Motor Error
carriage motor
Beeper: 8 times
ERROR indicator: Blinks 12 times
<Measure>
1
Check carriage motor.
Red
Blue
Orange
Yellow
1
2
3
4
A
B
B
A
Approx.
8.3Ω/phase
4
Carriage motor
Measuring point
1-4
CNCR
2-3
OK?
Normal value
Approx. 8.3Ω
No
Yes
Replace carriage motor.
Replace logic board.
• Faulty motor driver IC
• Faulty MPU
• Faulty PCB
soldering/conductivity
<Cause> Overheating of paper feed motor driver (IC14)
<Suspected parts> Paper feed motor driver (IC14),
11. LF Motor Error
logic board, paper feed motor
Beeper: 8 times
ERROR indicator: Blinks 13 times
<Measure>
1
Check paper feed motor.
Red
Black
Brown
Orange
1
2
3
4
A
B
B
A
Approx.
6.0Ω/phase
4
Paper feed motor
Measuring point
1-4
CNLF
2-3
OK?
Normal value
Approx. 6.0Ω
No
Yes
Replace paper feed motor.
Replace logic board.
• Faulty motor driver IC
• Faulty MPU
• Faulty PCB
soldering/conductivity
5-22
Part 5: Maintenance
BJC-7100
12. Miscellaneous
Hardware
Errors
<Cause> 1. Error detected by paper feed sensor or purge
sensor during paper transport (other than pickup or
during initialization).
2. When the printer is idle, the head temperature
sensor has detected an overheat.
<Suspected parts> 1. Paper feed motor drive switching
Beeper: 8 times
mechanism, slide lock lever
ERROR indicator: Blinks 14 times
2. Carriage unit, BJ cartridge
<Measure> 1. When error occurs during transport operation:
Check and service or replace the paper feed motor drive switching mechanism and
slide lock lever.
2. When error occurs when the printer is idle:
Check and service or replace the BJ cartridge and carriage unit.
(Carefully check for dried ink and shorting of the BJ cartridge contacts.)
5-23
Part 5: Maintenance
BJC-7100
13. Paper-out and
Paper-jam Errors
<Cause> 1. No print media is picked up in pickup operation.
2. No print media is output in paper output operation.
<Suspected parts> Sheet feeder unit, paper edge guide,
pressure roller and holder, platen,
feed roller, paper output roller,
transfer roller, paper output unit,
paper end sensor, logic board
Beeper: 2 times
ERROR indicator: ON
POWER indicator: Blinks
<Measure> 1. Pickup error
Check the type of loaded
print media, the method
by which loaded, and the
printer's ambient conditions.
OK?
No
Yes
Use print media, loading
method, and ambient
conditions that satisfy
printer specifications.
Turn power ON again
and make test print.
• When power is turned OFF then ON again, press and hold POWER
button until buzzer sounds twice.
Check operation of
paper feed mechanism
and feed status.
• Do paper feed motor, pickup roller, feed roller, and page output roller
operate during initialization?
• Are there any abnormal sounds?
• Is the paper feed motor out of sync?
• Is paper picked up correctly when the sheet feeder unit operates?
OK?
Yes
No
Check sheet feeder unit.
• Remove the sheet feeder unit and check its operation
manually.
• Check for abnormal soiling or deterioration of feed roller
rubber and separation sheet. (Wipe away paper dust, etc.,
with ethanol to restore the ability to pick up
the paper.)
• Check for deformation, damage, and
insufficient lubrication of the gears.
• Check that the separation hooks
operate smoothly.
(Check especially when thick
sheets, postcards, and highgloss papers are not picked up.)
No
OK?
Yes
Service or replace
paper feed motor drive
switching mechanism.
Replace logic board.
• Faulty pickup roller sensor
• Faulty MPU
• Faulty PCB soldering/
conductivity
5-24
Service or replace
faulty parts.
• Check also the operation of the
purge unit's slide lock lever.
Part 5: Maintenance
BJC-7100
2. Paper jam
Visually check inside the
printer (especially around
paper end sensor).
OK?
• Check for paper and other foreign materials.
• Check paper end sensor lever is normal.
• Check for displaced parts (paper edge guide, pressure roller and
holder, platen, feed roller, paper output roller, transfer roller, paper
output unit, and spur unit, etc.)
No
Yes
1. Remove paper and
foreign objects.
2. Service or replace
faulty parts.
Turn on power again.
Does error recur?
No
Yes
END
Replace logic board.
• Faulty paper end sensor
• Faulty MPU
• Faulty PCB soldering/conductivity
5-25
Part 5: Maintenance
BJC-7100
14. Ink-out Error
<Cause> 1. No ink in BJ cartridge BC-60.
2. No ink in color BJ cartridge BC-61.
3. No ink in Photo BJ cartridge BC-62e Photo.
Beeper: 3 times (BJ cartridge BC-60) <Suspected parts> BJ cartridge, ink tank, antenna,
Beeper: 4 times (Color BJ cartridge
carriage unit, logic board, front cover,
BC-61 or Photo BJ
main cover
cartridge BC-62e Photo)
ERROR indicator: ON
POWER indicator: Blinks
<Measure> 1. BJ cartridge BC-60
Replace BJ cartridge
BC-60.
Does error recur?
No
Yes
Repeat head cleaning and
deep cleaning operations
4 or 5 times.
Does error recur?
No
Yes
Align print heads.
• Use normal print driver.
Repeat cleaning.
END
Check purging by
purge unit.
OK?
• Visually check purge unit purge operation during cleaning to
check that ink is purged.
No
Yes
Replace purge unit.
• Is there anything that might generate noise nearby?
Check ambient conditions.
OK?
Yes
1. Check or replace
carriage cable.
No
Use under specified
ambient conditions.
• Measure the resistance of the contact between shield plates of
front and main covers.
2. Replace carriage unit.
3. Replace logic board.
5-26
Part 5: Maintenance
BJC-7100
2. Color BJ cartridge BC-61
Photo BJ cartridge BC-62e Photo
Replace appropriate
ink tank.
Does error recur?
No
Yes
Repeat head cleaning and
deap cleaning operations
4 or 5 times.
Does error recur?
No
Yes
Replace appropriate
BJ cartridge.
Does error recur?
No
Yes
Align print heads.
• Use normal print driver.
Repeat cleaning.
END
Check purging
by purge unit.
OK?
• Visually check purge unit purge operation during cleaning to
check that ink is purged.
No
Yes
Replace purge unit.
• Is there anything that might generate noise nearby?
Check ambient conditions.
OK?
No
Yes
Use under specified
ambient conditions.
Check contact resistance
of shield plate.
OK?
Yes
• Measure the resistance of the contact between shield plates of
front and main covers.
No
Clean or service contacts.
1. Check or replace
carriage cable.
2. Replace carriage unit.
3. Replace logic board.
5-27
Part 5: Maintenance
BJC-7100
<Cause> 1. Error detected in BJ cartridge type ID.
15. BJ Cartridge
Error
2. Error detected in head rank resistance.
3. Error detected in head temperature sensor
resistance.
4. Head sub-heaters not controlled normally.
<Suspected parts> BJ cartridge, color BJ cartridge, photo BJ
cartridge, carriage unit, carriage cable,
logic board
Beeper: 5 times
ERROR indicator: ON
POWER indicator: Blinks
<Measure>
Check mounting of
BJ cartridges.
OK?
• Are cartridges mounted in correct positions?
• Are cartridges mounted securely?
No
Yes
Remove BJ cartridge.
Check BJ cartridge
contacts (on cartridge
and on carriage).
OK?
• Is there any ink or
other foreign materials
on contacts?
• Are the contacts bent
or otherwise deformed?
No
Yes
Clean
contacts.
Remount BJ cartridges.
Replace BJ cartridge.
Press REPLACE button.
Does error recur?
No
Yes
END
1. Check or replace
carriage cable.
2. Replace carriage unit.
3. Replace logic board.
5-28
Part 5: Maintenance
BJC-7100
16. BJ Cartridge
Overheat Error
<Cause> With ink in BJ cartridge, head temperature sensor
detects overheat.
<Suspected parts> BJ cartridge
Beeper: 7 times
ERROR indicator: ON
POWER indicator: Blinks
<Measure> Wait several minutes with power OFF, then turn power ON again. If the error recurs,
follow the procedure in
15. BJ Cartridge Error
5-29
.
Part 5: Maintenance
BJC-7100
b) Symptoms
1. The power does
not turn on
<Symptoms> • The power does not turn on even when the
<Cause>
POWER button is pressed.
• When the power is turned ON, the printer
operates abnormally.
Faulty AC adaptor or AC adaptor not installed
correctly, faulty logic board, faulty control panel
(POWER button), faulty power cable
<Measure>
Check the power outlet
and the contacts of the
respective connectors.
OK?
No
Yes
Reconnect the power
outlet and the connectors
Check operation
of control panel.
OK?
• Does control panel (POWER and RESUME buttons) on main cover
function normally?
• Do switches on logic board operate when pressed directly?
No
Yes
Check output voltage
of AC adaptor.
Service or replace
faulty parts.
Measuring point Normal value
Pin No.
1
20±0.3V (in sync with control signal at pin No.7) *
3
27.6±1.5V (no load, 33V max)
1
3
5
7
5
5±0.25V
2
4
6
8
2, 4, 6, 8 GND
*: The output of pin No. 1 is controlled by the signal
at pin No. 7, and cannot, therefore, be measured
when the AC adaptor is not installed.
OK?
No
Logic Board Side
Yes
Replace AC adaptor.
Check conductivity
of power cable.
OK?
AC Adaptor Side
No
Yes
Replace power cable.
Replace logic board.
5-30
Part 5: Maintenance
BJC-7100
2. Abnormal noise
<Symptoms> • Noise during carriage drive.
<Cause>
• Noise during purge drive.
• Noise during pickup, paper output, and paper
transport
• Foreign object in, damage to, or misplacement of
carriage drive mechanism.
• Carriage (including BJ cartridges) interfering with
other parts.
• Faulty idler pulley.
• Faulty purge unit.
• Faulty paper feed motor drive transfer gear.
• Faulty sheet feeder unit.
• Insufficient lubrication (grease).
<Measure> • Noise in carriage drive
Manually move carriage left and right to check and service part by which noise is
generated.
• Noise in purge drive
Remove purge unit.
Visually check purge unit.
OK?
No
• Check if cap lever displaced.
• Check for foreign objects.
• Check if gears deformed or damaged.
• Check if tubes are crushed (if so, the
pump cam will not operate smoothly
and may interfere with other gears,
generating noise).
Yes
Check operation
of purge unit.
OK?
• Remove the purge unit from the
printer and rotate the drive gears
in both directions to check where
the noise is generated.
No
Yes
Check and service platen
paper feed motor drive
transfer gear.
Service or replace
purge unit.
• There may be a problem in the paper feed motor drive transmission,
such as the gears being deformed or damaged.
Dismantle and check the paper feed motor drive transmission
(power switching mechanism, etc.).
5-31
Part 5: Maintenance
BJC-7100
• Noise during pickup, paper output, and paper transport
Remove the sheet
feeder unit.
Visually check
sheet feeder unit.
OK?
• Check for foreign objects.
• Check for deformed or
damaged gears.
No
Yes
• Remove the sheet feeder unit from
the printer and manually rotate
the drive gears to check for where
the noise is generated.
Check operation of
sheet feeder unit.
OK?
No
Yes
Service or replace
sheet feeder unit.
Visually check parts in
paper transport path.
• Paper edge guide
• Pressure roller and holder
• Platen
• Spur unit
5-32
• Feeder roller
• Paper output roller
• Gears
Part 5: Maintenance
BJC-7100
<Symptoms> • Paper not picked up, or multiple pages picked
3. Faulty pickup
<Cause>
up
• Paper skewed or not output
• Frequent paper jams
• Faulty sheet feeder unit
• Faulty paper edge guide, platen, feed roller, spur
unit, pinch roller and holder, paper output roller,
transmission roller parts
• Faulty paper feed motor
• Faulty paper output unit
• Faulty sensor lever
• Smally pieces of paper or other foreign objects in the
mechanism
<Measure>
Check print media and
ambient conditions.
Do they meet
specifications?
Yes
No
Use print media and
ambient conditions that
satisfy printer specifications.
Turn ON power and
make test print.
Does error recur?
No
Yes
Check feed status.
Following the
troubleshooting procedures
for each error.
• Is print media picked
up OK?
• Does problem occur
with manually fed
print media?
* Process for checking that
trouble is not accidental.
No
OK?
Yes
Re-check operation
Check sheet feeder unit.
No
OK?
• Check for soiling
of pickup rollers,
and for
displacement of
separation hook
unit, hooks, etc.
Yes
OK?
END
No
Yes
Service or replace
faulty parts.
Check, service, or replace
paper transport mechanism
(other than sheet feeder unit).
• Check for displacement, damage, or soiling of the gears and springs
of the paper edge guide, platen, feed roller, spur unit, pinch roller
and holder, page output roller, transfer roller, paper feed motor, paper
output guide.
5-33
Part 5: Maintenance
BJC-7100
4. Faulty printing <1>:
No printing
<Symptoms> • The printer does not print at all.
<Cause>
• Printing stops mid-way.
• Only a certain color is printed.
• The ink has run out or the BJ cartridge is faulty.
• The carriage unit is faulty, the carriage cable is
faulty, the purge unit is faulty, or the logic board is
faulty.
<Measure>
Repeat head cleaning and
deep cleaning operations
4 or 5 times.
Make a test print.
OK?
No
Yes
Remove BJ cartridges.
END
Check contacts (both
cartridge and carriage).
• Check for ink on contacts.
• Check that contacts are not bent or
displaced.
No
OK?
Yes
Clean contacts.
Replace color and
photo ink tanks.
A
Repeat head cleaning and
deap cleaning operations
4 or 5 times.
Make a test print.
No
OK?
Replace black
BJ cartridge.
Yes
Replace color/
photo BJ cartridge.
END
A
5-34
Part 5: Maintenance
BJC-7100
A
Repeat head cleaning and
deep cleaning operations
4 or 5 times.
Make a test print.
OK?
Yes
END
No
1. Check/replace carriage
cable.
2. Replace carriage unit.
3. Replace logic board.
4. Replace purge unit.
5-35
Part 5: Maintenance
BJC-7100
5. Faulty printing <2>:
Miscellaneous
problems
Symptoms
Cause
• White stripes Insufficient cleaning, ink-out,
(horizontal)
faulty BJ cartridge
• Blotching
Faulty cleaning operation
• Spur tracks Faulty spurs (soiled or deformed)
(vertical)
• Color
Incorrect print driver setting
dropout
Insufficient cleaning, ink-out,
faulty BJ cartridge
• Ink bleeds
Incorrect print driver setting
Incorrect paper (print media)
No jetting of ink optimizer
(plain paper)
• Impure color Insufficient cleaning, ink-out,
or mixed
faulty BJ cartridge
colors
Insufficient cleaning
• Displaced
Heads not aligned
borders
Faulty BJ cartridge
• Dirty print
media
• Deformed
characters
Measure
Perform several cleaning operations, then
make test print.
Replace BJ cartridge(s) or ink tank(s).
Replace purge unit.
Replace spurs, spur cleaner, or spur unit.
Select FINE mode* using printer driver, or
select error dispersal.
Perform several cleaning operations, then
make test print.
Replace BJ cartridge(s) or ink tank(s).
Select FINE mode* using printer driver, or
set color parameter lighter.
Change to higher quality print media.
Perform several cleaning operations, then
make test print. (Check nozzles on
transparency.)
Replace black BJ cartridge (BC-60).
Perform several cleaning operations, then
make test print.
Replace BJ cartridge(s) or ink tank(s).
Replace purge unit.
Use printer driver to align print heads.
Perform several cleaning operations, then
make test print.
Replace BJ cartridge(s).
Visually check, and clean, inside printer.
Dirty inside printer (ink mist
or paper dust, etc.)
Ink has dried or foreign objects Perform several cleaning operations, then
adhering to head face
make test print.
Replace BJ cartridge(s).
Dirty purge unit or wiper unit Replace purge unit, cleaner unit, wiper unit.
Printing onto platen (incorrect Set the correct paper size in the printer
driver setting)
driver.
Incorrect printer driver setting Select BJC-7100 printer driver.
Remaining data
Turn ON power again.
Faulty interface cable or faulty Check in hexadecimal dump mode and
logic board
service or replace faulty part(s).
*FINE mode: default setting of Auto mode
5-36
Part 5: Maintenance
BJC-7100
7. CONNECTOR LAYOUT AND SIGNAL ASSIGNMENT
7.1 Logic Board
1
CNHEAD1
2
1
CNHEAD2
2
3
27
28 28
1
29
CNPGS
1
4
CNCR
1
1
CNLF
19
4
8
CNPWR
CNIF
18 36
1
Figure 5-16 Logic Board
CNPWR (Connection to AC Adaptor)
Pin No.
1
2
3
4
5
6
7
8
Signal
VH
VH-GND
VM
VM-GND
VCC
VCC-GND
VHON
GND
IN/OUT
IN
...
...
IN
...
IN
OUT
...
Function
Head drive voltage (20.0 ± 0.3VDC)
VH GND
Motor drive voltage (27.6 ± 1.5VDC)
VM GND
Logic drive voltage (5.0 ± 0.25VDC)
VCC GND
VH output control
GND
CNPGS (Purge Sensor Connector)
Pin No.
1
2
3
Signal
LEDON
GND
PGS
IN/OUT
Function
OUT Photointerruptor LED drive voltage
...
GND
IN
Purge unit module initial phase detection
CNCR (Carriage Motor Connector)
Pin No.
1
2
3
4
Signal
CRA
CRB
CRB
CRA
IN/OUT
OUT
OUT
OUT
OUT
Function
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
CNLF (Paper Feed Motor Connector)
Pin No.
1
2
3
4
Signal
LFA
LFB
LFB
LFA
IN/OUT
OUT
OUT
OUT
OUT
Function
A-phase drive voltage
B-phase drive voltage
B-phase drive voltage
A-phase drive voltage
5-37
Part 5: Maintenance
BJC-7100
CNIF (Parallel Interface Connector)
See "Part 2: 2.3 Interface Specifications" (page 2-12).
CNHEAD1 (Carriage Cable Connector)
Pin No.
Signal
IN/OUT
Function
1
TSKOM
IN
Ink optimizer temperature sensor (diode) output voltage
2
TSKBK
IN
Black head temperature sensor (diode) output voltage
3
LTCLK
OUT Print data latch timing specification
4
RANKOM
IN
Ink optimizer rank resistance detection
5
RANKBK
IN
Black head rank resistance detection
6
IDATAOM
OUT Ink optimizer print data
7
IDATABK
OUT Black head print data
8
HEATEOM
OUT Ink optimizer heat enable
9
HEATEBK
OUT Black head heat enable
10
ID1OM/ELCPH IN/OUT Ink optimizer head index1 detection/photo head cyan inkout detection pulse (ID1OM input and ELCPH output)
11
DCLK
OUT Print data transfer clock
12
ID1BK/ELBK IN/OUT Black head index1 detection/ink-out detection pulse
(ID1BK input and ELBK output)
13
SUBHOM
OUT Ink optimizer sub-heater drive
14
BE1
OUT Print data block output signal generation 2
15
SUBHBK
OUT Black head sub-heater drive
ID2OM/ELOM IN/OUT Ink optimizer index 2 detection/ink-out detection pulse
16
(ID2OM input and ELOM output)
EVENE
17
OUT Black head and color head odd nozzle, and ink optimizer
and photo head even nozzle heat enable
18
ID2BK/ELYCL IN/OUT Black head index 2 detection/color head yellow ink-out
detection pulse (ID2BK input and ELYCL output)
TSAOM
19
OUT Ink optimizer temperature sensor (diode) drive voltage
TSABK
20
OUT Black head temperature sensor (diode) drive voltage
TEMP
21
IN
Printer temperature sensor (thermistor) detection voltage
HPS
22
IN
Home position detection
LEDON
23
OUT Photo LED drive voltage
24-28
GND
...
GND
CNHEAD2 (Carriage Cable Connector)
Pin No.
Signal
IN/OUT
Function
1
INKOUT
IN
Ink-out detection
2
TSKCL
IN
Color head temperature sensor (diode) output voltage
3
TSKPH
IN
Photo head temperature sensor (diode) output voltage
4
LTRST
OUT Latch reset
5
RANKCL
IN
Color head rank resistance detection
6
RANKPH
IN
Photo head rank resistance detection
7
IDATACL
OUT Color head print data
8
IDATAPH
OUT Photo head print data
9
HEATECL
OUT Color head heat enable
10
HEATEPH
OUT Photo head heat enable
11
ID1CL/ELMCL IN/OUT Color head index 1 detection/magenta ink-out detection
pulse (ID1CL input and /ELMCL output)
12
BE2
OUT Print data block output signal generation 3
5-38
Part 5: Maintenance
BJC-7100
Pin No.
Signal
IN/OUT
Function
13
ID1PH/ELMPH IN/OUT Photo head index 1 detection/magenta ink-out detection
pulse (ID1PH input and /ELMPH output)
14
SUBHCL
OUT Color head sub-heater drive
15
BE0
OUT Pint data block output signal generation 1
16
SUBHPH
OUT Photo head sub-heater drive
17
ID2CL/ELCCL IN/OUT Color head index 2 detection/cyan ink-out detection pulse
(ID2CL input and ELCCL output)
18
ODDE
OUT Black head and color head odd nozzle, and ink optimizer
and photo head even nozzle heat enable
19
ID2PH/ELYPH IN/OUT Photo head index 2 detection/yellow ink-out detection pulse
(ID2PH input and ELYPH output)
20
TSACL
OUT Color head temperature sensor (diode) drive voltage
21
TSAPH
OUT Photo head temperature sensor (diode) drive voltage
22
VDDH
OUT Head logic drive voltage
23
GND
...
GND
24-29
VH
OUT Head heater drive voltage (20.0 ± 0.03VDC)
7.2 Carriage Board
29
28
1
1
LIGHTCOL
28
JENG2
DARKCOL
29
1
1
JENG1
1
BLACK
1
28
AMM 28
Figure 5-17 Carriage Board
The BLACK and AMM pins are connected, respectively, to the black head and ink
optimizer head of the BC-60.
The DARKCOL and LIGHTCOL pins are connected as shown in Table 5-1.
TABLE 5-1 CONTACTS (DARK COL AND LIGHT COL)
DARKCOL
BC-61 installed
Color head
BC-62e Photo installed Color head
5-39
LIGHTCOL
Not used
Photo head
Part 5: Maintenance
BJC-7100
JENG1 (Carriage Cable Connector)
Pin No.
Signal
IN/OUT
Function
1-5
GND
...
GND
6
LEDON
IN
Photo LED drive voltage
7
HPS
OUT Home position detection
8
TEMP
OUT Printer temperature sensor (thermistor) detection voltage
9
TSABK
IN
Black head temperature sensor (diode) drive voltage
10
TSAOM
IN
Ink optimizer temperature sensor (diode) drive voltage
11
ID2BK/ELYCL OUT/IN Black head index 2 detection/color head yellow ink-out
detection pulse (ID2BK input and ELYCL output)
12
EVENE
IN
Black head and color head even nozzle, and ink optimizer
and photo head odd nozzle heat enable
13
ID2OM/ELOM OUT/IN Ink optimizer index 2 detection/ink-out detection pulse
(ID2OM input and ELOM output)
14
SUBHBK
IN
Black head sub-heater drive
15
BE1
IN
Print data block output signal generation 2
16
SUBHOM
IN
Ink optimizer sub-heater drive
17
ID1BK/ELBK OUT/IN Black head index1 detection/ink-out detection pulse
(ID1BK output and ELBK input)
18
IN
DCLK
Print data transfer clock
19
OUT/IN Ink optimizer head index1 detection/photo head cyan inkID1OM
out detection pulse (ID10M input and ELCPH output)
20
IN
HEATEBK
Black head heat enable
21
IN
HEATEOM
Ink optimizer heat enable
22
IDATABK
IN
Black head print data
23
IDATAOM
IN
Ink optimizer print data
24
RANKBK
OUT Black head rank resistance detection
RANKOM
25
OUT Ink optimizer rank resistance detection
LTCLK
26
IN
Print data latch timing specification
TSKBK
27
OUT Black head temperature sensor (diode) output voltage
28
TSKOM
OUT Ink optimizer temperature sensor (diode) output voltage
JENG2 (Carriage Cable Connector)
Pin No.
Signal
IN/OUT
Function
1-6
VH
IN
Head heater drive voltage (20.0 ± 0.3VDC)
7
GND
...
GND
8
VDDH
IN
Head logic drive voltage
9
TSAPH
IN
Photo head temperature sensor (diode) drive voltage
10
TSACL
IN
Color head temperature sensor (diode) drive voltage
11
ID2PH/ELYPH OUT/IN Photo head index 2 detection/yellow ink-out detection pulse
(ID2PH output and ELYPHY input)
12
ODDE
IN
Black head and color head odd nozzle, and ink optimizer
and photo head even nozzle heat enable
13
ID2CL/ELCCL OUT/IN Color head index 2 detection/cyan ink-out detection pulse
(ID2CL output and ELCCL input)
14
SUBHPH
IN
Photo head sub-heater drive
15
BE0
IN
Print data block output signal generation 1
16
SUBHCL
IN
Color head sub-heater drive
ID1PH/ELMPH OUT/IN Photo head index 1 detection/magenta ink-out detection
17
pulse (ID1PH output and /ELMPH input)
18
BE2
IN
Print data block output signal generation 3
5-40
Part 5: Maintenance
BJC-7100
Pin No.
Signal
IN/OUT
Function
19
ID1CL/ELMCL OUT/IN Color head index 1 detection/magenta ink-out detection
pulse (ID1CL output and /ELMCL input)
20
HEATEPH
IN
Photo head heat enable
21
HEATECL
IN
Color head heat enable
22
IDATAPH
IN
Photo head print data
23
IDATACL
IN
Color head print data
24
RANKPH
OUT Photo head rank resistance detection
25
RANKCL
OUT Color head rank resistance detection
26
LTRST
IN
Latch reset
27
TSKPH
OUT Photo head temperature sensor (diode) output voltage
28
TSKCL
OUT Color head temperature sensor (diode) output voltage
29
INK
OUT Ink-out detection
BLACK (Cartridge Cable)
Pin No.
1
2
3
4
5
6
7, 8
9
10
Signal
VH
TSABK
ID2BK
SUBHBK
ID1BK
VDDH
GND
HEATEBK
INVBK
IN/OUT
OUT
OUT
IN
OUT
IN
OUT
...
OUT
OUT
11
ODDE
OUT
12
EVENE
OUT
13
14
15
16
17
18
19-21
22
23
24
25
26
27
28
BE0
VH
BE1
IDATABK
BE2
DCLK
GND
LTCLK
ELBK
RANKBK
LTRST
TSKBK
VH
Not used
OUT
OUT
OUT
OUT
OUT
OUT
...
OUT
OUT
IN
OUT
IN
OUT
...
Function
Head drive voltage (20.0 ± 0.3VDC)
Black head temperature sensor (diode) drive voltage
Black head index 2 detection
Black head sub-heater drive
Black head index 1 detection
Head logic drive voltage
GND
Black head heat enable
Black head print data block output signal output sequence
inversion (permanently disabled)
Black head and color head odd nozzle, and ink optimizer
and photo head even nozzle heat enable
Black head and color head even nozzle, and ink optimizer
and photo head odd nozzle heat enable
Print data block output signal generation 1
Head drive voltage (20.0 ± 0.3VDC)
Print data block output signal generation 2
Black head print data
Print data block output signal generation 3
Print data transmission clock
GND
Print data latch timing specifier
Black head ink-out detection pulse
Black head rank resistance detection
Latch reset
Black head temperature sensor (diode) output voltage
Head drive voltage (20.0±0.3VDC)
...
5-41
Part 5: Maintenance
BJC-7100
AMM (Cartridge Cable)
Pin No.
1
2
3
4
5
6
7, 8
9
10
Signal
VH
TSAOM
ID2OM
SUBHOM
ID1OM
VDDH
GND
HEATEOM
INVOM
IN/OUT
OUT
OUT
IN
OUT
IN
OUT
...
OUT
OUT
11
EVENE
OUT
12
ODDE
OUT
13
14
15
16
17
18
19-21
22
23
24
25
26
27
28
BE0
VH
BE1
IDATAOM
BE2
DCLK
GND
LTCLK
ELOM
RANKOM
LTRST
TSKOM
VH
Not used
OUT
OUT
OUT
OUT
OUT
OUT
...
OUT
OUT
IN
OUT
IN
OUT
...
Function
Head drive voltage (20.0 ± 0.3VDC)
Ink optimizer temperature sensor (diode) drive voltage
Ink optimizer index 2 detection
Ink optimizer sub-heater drive
Ink optimizer index 1 detection (N.C.)
Head logic drive voltage
GND
Ink optimizer heat enable
Ink optimizer print data block output signal output
sequence inversion (permanently enabled)
Black head and color head even nozzle, and ink optimizer
and photo head odd nozzle heat enable
Black head and color head odd nozzle, and ink optimizer
and photo head even nozzle heat enable
Print data block output signal generation 1
Head drive voltage (20.0 ± 0.3VDC)
Print data block output signal generation 2
Ink optimizer print data
Print data block output signal generation 3
Print data transmission clock
GND
Print data latch timing specifier
Ink optimizer ink-out detection pulse
Ink optimizer rank resistance detection
Latch reset
Ink optimizer temperature sensor (diode) output voltage
Head drive voltage (20.0±0.3VDC)
...
DARKCOL (Cartridge Cable)
Pin No.
Signal
IN/OUT
Function
1
PHANT
IN
Photo head ink-out detection (antenna voltage)
2
VH
OUT Head drive voltage (20.0 ± 0.3VDC)
3
TSACL
OUT Color head temperature sensor (diode) drive voltage
4
ID2CL/ELCCL IN/OUT Color head index 2 detection/cyan ink-out detection pulse
(ID2CL input and ELCCL output)
5
SUBHCL
OUT Color head sub-heater drive
6
ID1CL/ELMCL IN/OUT Color head index 1 detection/magenta ink-out detection
pulse (ID1CL input and ELMCL output)
7
VDDH
OUT Head logic drive voltage
8, 9
GND
...
GND
10
HEATECL
OUT Color head heat enable
11
INVCL
OUT Color head print data block output signal output sequence
inversion (permanently disabled)
12
ODDE
OUT Black head and color head odd nozzle, and ink optimizer
and photo head even nozzle heat enable
13
EVENE
OUT Black head and color head even nozzle and ink optimizer
and photo head odd nozzle heat enable
14
BE0
OUT Print data block output signal generation 1
5-42
Part 5: Maintenance
BJC-7100
Pin No.
15
16
17
18
19
20-22
23
24
25
26
27
28
29
Signal
VH
BE1
IDATACL
BE2
DCLK
GND
LTCLK
ELYCL
RANKCL
LTRST
TSKCL
VH
Not used
IN/OUT
OUT
OUT
OUT
OUT
OUT
...
OUT
OUT
IN
OUT
IN
OUT
...
Function
Head drive voltage (20.0 ± 0.3VDC)
Print data block output signal generation 2
Color head print data
Print data block output signal generation 3
Print data transmission clock
GND
Print data latch timing specifier
Color head yellow ink-out detection pulse
Color head rank resistance detection
Latch reset
Color head temperature sensor (diode) output voltage
Head drive voltage (20.0 ± 0.3VDC)
...
LIGHTCOL (Cartridge Cable)
Pin No.
Signal
IN/OUT
Function
1
VH
OUT Head drive voltage (20.0 ± 0.3VDC)
2
TSAPH
OUT Photo head temperature sensor (diode) drive voltage
3
ID2PH/ELYPH IN/OUT Photo head index 2 detection/yellow ink-out detection pulse
(ID2PH input and ELYPH output)
4
SUBHPH
OUT Photo head sub-heater drive
5
ID1PH/ELMPH IN/OUT Photo head index 1 detection/magenta ink-out detection
pulse (ID1PH input and ELMPH output)
6
VDDH
OUT Head logic drive voltage
7, 8
GND
...
GND
9
HEATEPH
OUT Photo head heat enable
10
INVPH
OUT Photo head print data block output signal output sequence
inversion (permanently enabled)
11
EVENE
OUT Black head and color head even nozzle, and ink optimizer
and photo head odd nozzle heat enable
12
ODDE
OUT Black head and color head odd nozzle and ink optimizer
and photo head even nozzle heat enable
13
BE0
OUT Print data block output signal generation 1
14
VH
OUT Head drive voltage (20.0 ± 0.3VDC)
15
BE1
OUT Print data block output signal generation 2
IDATAPH
16
OUT Photo head print data
17
BE2
OUT Print data block output signal generation 3
18
DCLK
OUT Print data transmission clock
19-21
GND
...
GND
22
LTCLK
OUT Print data latch timing specifier
23
ELCPH
OUT Photo head cyan ink-out detection pulse
24
RANKPH
IN
Photo head rank resistance detection
25
LTRST
OUT Latch reset
26
TSKPH
IN
Photo head temperature sensor (diode) output voltage
27
VH
OUT Head drive voltage (20.0 ± 0.3VDC)
28
Not used
...
...
5-43
Part 5: Maintenance
BJC-7100
8. CIRCUIT DIAGRAMS
8.1 Parts Layout
8.1.1 Logic board
Figure 5-18 Logic Board (Face)
Figure 5-19 Component Board (Back)
5-44
Part 5: Maintenance
BJC-7100
8.1.2 Carriage board
Figure 5-20 Carriage Board (Face)
Figure 5-21 Carriage Board (Back)
5-45
Part 5: Maintenance
BJC-7100
This page intentionally left blank
5-46
Part 5: Maintenance
BJC-7100
8.2 Circuit Diagrams
8.2.1 Logic board
1
2
3
4
5
6
7
8
9
10
LOGIC BOARD 01
MPU & MEMORY IC
ID1LC
ID2LC
ID1DC
ID2DC
16M DRAM (TSOP)
IC5
<03-F5>
<03-E5>
<03-F5>
<03-E5>
C100
0.1µ,25V
CRTC
SPOWON
LFPWMA
VHPOW
VDDHPOW
ADTRIG
TEMP
SENSE
HRANKBK
HTEMPDC
HTEMPLC
HTEMPBK
INT0
INT1
INT2
INT3
<02-B7>
<02-A7>
<02-A7>
<02-A7>
ID1AMM
ID2AMM
ID1BK
<03-C5>
<03-B5>
<03-B5>
RAS2
RAS1
POWDN
<02-B1>
<02-B1>
<02-B1>
4
5
6
7
VCC
R6
22K,1/16W
RxD
TxD
R127
270,0.1%,1/10W
BZ1
CD11PA-XZ
BZ
R90
1.5K,1/10W
HTEMPAMM
C4
0.1µ,25V
N.C.
N.C.
N.C.
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
1
2
3
+5V
+5V
4
5
LFPA
C94
<04-F6>
+5V
6
LFPB
0.1µ,25V
EEPROM
<04-F6>
7
LFIA0
<04-F6>
IC7
8
LFIA1
<04-F6>
9
10
8 VCC
CS 1
11
2
7 N.C.
SK
12
6 TEST
D1 3
13
5 GND
D0 4
<04-B1> CRPA
14
CRPB
<04-C1>
15
CRAENA
<04-B6>
S29220AFJA
16
CRBENA
<04-C6>
17
R134
R138
+5V
22K,1/16W 22K,1/16W
18
19
20
21
C3
0.1µ,25V
22
R1
23
1M,1/10W
24
25
<04-C8> PES
26
ASFS
<04-B8>
27
OSCILLATOR
+5V
<04-D10> PGS
28
HPS
X1
<03-A5>
29
30
31
<03-B5> ID2BK
32
COVER
<04-F7>
33
<04-E7> ERRSW
34
POWSW
<04-E7,02-E1>
35
CST22.11MXW040
N.C.
36
N.C.
37
<02-E1> CS2
38
CS1
<02-E1>
39
BK1608HS241
FB26
+5V
40
+5V
<03-A1>
N.C.
N.C.
C17
0.1µ,25V
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AVSS
ADTRIG
VSS
P134
TB01
P136
P137
P141
TADTC
P143
P144
P145
P146
P147
VCC
NM1
INT0
INT1
INT2
INT3
VSS
GBR
P73
P74
P75
RXD0
TXD0
P83
P84
P85
P86
P87
VSS
R128
100,0.1%,1/10W
AN0
AVREF
AVCC
VCC
TA15
TA14
TA13
TA12
TA11
TA10
TA05
TA04
TA03
TA02
TA01
TA00
OSCVCC
XIN
XOUT
OSCVSS
VSS
P107
P106
P105
P104
P103
P102
P101
VSS
VCC
TC0
P157
P156
P155
P154
CS3
CS2
CS1
CS0
VCC
M31002S2HP-D1
TR5
DTC143ZKA
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
N.C.
R264
100,1/16W
HOLD
RAMWE
RAS0
RAMA <9..0>
RAMD <15..0>
RAMOE
CASU
CASL
N.C.
N.C.
WE
RAS
N.C.
N.C.
A0
A1
A2
A3
VCC
N.C.
LCAS
UCAS
DE
A9
A8
A7
A6
A5
A4
GND
11
10
9
8
B
9
8
7
6
5
UPD42S18165LG5
10
C
RESET
+5V
2
7
6
5
4
3
2
1
0
RD
<02-B1>
BHW
<02-B1>
BLW
<02-B1>
C99
0.1µ,25V
VCC
C85
0.01µ,50V
OUT
C7
0.1µ,25V +5V
+5V
C36
0.1µ,25V
R3
10K,1/16W
3
D
GND
1
+5V
<02-B1>
+5V
IC20
M62781GP
BK1608HS241
36
35
34
33
32
31
30
29
28
27
26
15
14
13
12
16
+5V
15
14
13
12
11
10
9
8
N.C.
N.C.
N.C.
N.C.
N.C.
GND
I/O 16
I/O 15
I/O 14
I/O 13
GND
I/O 12
I/O 11
I/O 10
I/O 9
N.C.
<02-A7>
FB100
BK1608LM252
N.C.
FB4
VCC
I/O 1
I/O 2
I/O 3
I/O 4
VCC
I/O 5
I/O 6
I/O 7
I/O 8
N.C.
50
49
48
47
46
45
44
43
42
41
40
+5V
R140
22K,1/16W
CONTROL ROM (8M)
IC3
19
18
8
7
6
5
4
3
2
1
0
8
1
9
2
10
3
11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
A18
A17
A7
A6
A5
A4
A3
A2
A1
A0
CE
GND
OE
D0
D8
D1
D9
D2
D10
D3
D11
N.C.
A8
A9
A10
A11
A12
A13
A14
A15
A16
VPP
GND
D15
D7
D14
D6
D13
D5
D12
D4
VCC
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
20
9
10
11
12
13
14
15
16
17
E
+5V
16
7
14
6
13
5
12
4
LH538P00CD
F
+5V
FB25
BK1608LM252
FB1
BK1608HS431
FB2
BK1608HS241
FB3
BK1608HS241
C6
0.1µ,25V
+5V
+5V
15
16
17
18
19
20
IFPOWON
CLKOUT
BE
BS
DC
7
8
9
10
11
12
13
14
<02-A8>
<02-E1>
<02-E1>
<02-E1>
<02-A7>
1
2
3
4
5
6
BEEPER
+5VL
VCC
VSS
MOD0
MOD1
HLDA
HOLD
RESET
WAKEUP
BCLK
VCC
VSS
D0
D1
D2
D3
D4
D5
D6
D7
VSS
VCC
D8
D9
D10
D11
D12
D13
D14
D15
VCC
VSS
RD
BHW
BLW
SID0
SID1
A6
A7
A8
VSS
MPU
IC1
<02-G7>
<02-F7>
<02-G7>
<02-E7>
<02-G7>
<02-F7>
<02-G7>
C8
0.1µ,25V
41
VSS
42
P167
N.C.
43
P166
N.C.
44
P165
N.C.
45
P164
N.C.
46
P163
47
CLKOUT
48
BE
49
BS
50
VSS
51
VCC
52
R/W
N.C.
53
DC
54
A30
55
A29
56
A28
57
A27
58
A26
59
A25
60
VCC
61
VSS
62
A24
63
A23
64
A22
65
A21
66
A20
67
A19
68
A18
69
A17
70
VSS
71
VCC
72
A16
73
A15
74
A14
75
A13
76
A12
77
A11
78
A10
N.C.
79
A9
N.C.
80
VCC
C1
0.01µ,50V
15
16
17
18
19
20
21
22
23
24
25
0
1
2
3
C9
C13
C12
C11
C10
C14
0.1µ,25V 220P,50V 0.1µ,25V 0.01µ,50V 0.01µ,50V 0.01µ,50V
+5V
1
2
3
4
5
6
7
8
9
10
11
0
1
2
3
+5V
<02-B7>
<04-A10>
<04-F6>
<05-E4>
<03-D5>
<02-B7>
<03-A5>
<03-G5>
<02-E1>
<03-D1>
<03-C1>
<03-B1>
A
VRAM
16
D BUS <15..0>
23
A BUS <22..0>
<02-A1>
<02-C1>
+5V
G
C5
0.1µ,25V
C97
0.1µ,25V
All resistance tolerances which are not marked with "%" are 5%.
5-47
Part 5: Maintenance
BJC-7100
1
2
3
PRINTER CONTROLLER & PARALLEL I/F
VDDL
VCC2
HOLD
DC
INT3
INT2
INT1
INT0
ADTRIG
CRTC
LED0
LED1
LED2
CRPWMA
CRPWMB
<01-D7>
<01-G2>
<01-B6>
<01-B6>
<01-B6>
<01-A6>
<01-B1>
<01-B1>
<04-G7>
<04-G7>
<04-G7>
<04-B5>
<04-C5>
<01-G2>
CLKOUT
BS
BE
CS1
CS2
POWSW
RANKLC
RANKAMM
RANKDC
HRANKBK
RANKBK
VDDH
HRESET
ODD
BE0
BE2
HEATLC
HEATDC
IDATALC
VCC1
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
N.C.
108
107
106
105
VDDH-D
VDDL-G
ABUS20
ABUS19
ABUS18
ABUS17
ABUS16
ABUS15
VSS-T
VCC2-G
ABUS14
ABUS13
ABUS12
ABUS11
ABUS10
ABUS9
ABUS8
ABUS7
ABUS6
ABUS5
ABUS4
ABUS3
ABUS2
ABUS1
TEST2
VDDH-E
VSS-U
CLK
VSS-V
BSX
BEX
CS1X
CS2X
TEST1
TEST3
POWSW
BSW0
BSW1
BSW2
BSWCOM
BSW3
VSS-W
VDDH-F
HRESET
HDD0
HBE0
HBE2
HCA
HCC
HOCA
N.C.
VCC1-B
M66392-0002FP
N.C.
N.C.
N.C.
N.C.
C21
0.01µ,50V
PRINTER CONTROLLER
IC2
IDATADC
EVENE
BE1
DCLK
HEATBK
HEATAMM
IDATABK
IDATAAMM
LTCLK
HSUBAMM
HSUBBK
HSUBLC
HSUBDC
IP0
IP1
VDDH-C
N.C.
VCC3-B
CEND0
CEND1
CEND2
CEND3
CEND4
CEND5
CEND6
CEND7
VSS-L
CENACKX
CENBUSY
CENPE
CENSELTX
CENFALTX
VSS-K
VCC3-A
SENSTBX
CENAFXT
CENINTX
CENSELIX
VSS-J
VDDL-C
VSTROBEX
REMOTEX
VCC2-C
VSS-I
CENDOCNTX
IOP3
RAMD15
RAMD14
RAMD13
RAMD12
RAMD11
RAMD10
RAMD9
RAMD8
RAMD0
RAMD1
VSS-H
VDDH-B
RAMD2
RAMD3
RAMD4
RAMD5
RAMD6
RAMD7
RASOX
VDDL-B
VCC2-B
C27
0.1µ,25V
CP1
C29
0.1µ,25V
VDDH
104
103
N.C.
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
N.C.
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
R223
100,1/10W
R148
100,1/16W
VCCL
2
DATA1
3
DATA2
4
DATA3
5
DATA4
6
DATA5
7
DATA6
8
DATA7
9
DATA8
10
ACK
11
BUSY
FB17
R157 3.3K,1/16W BK1608HS241
12
PE
FB18
R151 3.3K,1/16W BK1608HS241
13
SELECT
14
AFXT
15
N.C.
18
PERIPHERAL
LOGIC HIGH
16
17
19
GND
GND
GND
R162 3.3K,1/16W
R147 3.3K,1/16W
5
4
DA1 HZM6.8FA
R163 3.3K,1/16W
TR31
DTC143ZKA
R310
100,1/4W
2
C
R164 3.3K,1/16W
3
C133
47µ,10V
R168 3.3K,1/16W
4
3
2
1
R165 3.3K,1/16W
4
5
DA2 HZM6.8FA
R166 3.3K,1/16W
6
R167 3.3K,1/16W
7
VDDL
C25
0.1µ,25V
FB15
N1608ZE471
16 RAMD <15..0>
VDDH
FB37
<01-C7>
15
14
13
12
11
10
9
8
0
1
2
3
FB36
BK1608HS601
3
2
1
R155 1K,1/16W
R152
1K,1/16W
C45
220p,50V
R161 390,1/8W
RAS0
FB51
4
E
4
2
1
4
5
6
7
5
DA3 HZM6.8FA
FB16
R156 3.3K,1/16W BK1608HS241
BK32164S601
BK32164S601
3
5
DA4 HZM6.8FA
<01-C7>
VDDL
VCC2
R149
100,1/16W
C23
0.1µ,25V
C80
0.1µ,25V
BK1608HS601
FB53
BK1608HS601
FB52
FB35
FB34
BK32164S601
FB33
D
R154 3.3K,1/16W
VCC2
BK32164S601
BK32164S601
3
2
1
5
FB38
C134
0.1µ,25V
C24
0.1µ,25V
DATA STROBE
0
VDDM
0
1
2
3
4
5
6
7
BK32164S601
VDDL
1
1
BK32164S601
VDDH
B
CNIF
R153 1K,1/16W
TR30
DTA113ZKA
10
CP0 CP2
VDDL
D5
RB501V-40
C40
470p,50V
+5V
VCC3
FB39
N.C.
N.C.
20
19
18
17
16
15
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
N.C.
208
N.C.
A BUS <22..0> 23
C124
0.01µ,50V
TR16
DTA143EKA
IFPOWON
TR17
DTC143EKA
IFD <7..0>
8
VSS-S
VSS-R
POWDNX
RESETX
RAS1X
RAS2X
BLWX
BHWX
RDX
DBUS15
DBUS14
DBUS13
DBUS12
DBUS11
DBUS10
VSS-D
VCC2-F
DBUS9
DBUS8
DBUS7
DBUS6
DBUS5
DBUS4
DBUS3
VSS-P
VDDL-F
VCC2-E
DSUB2
DBUS1
DSUB0
HOLDX
DCX
INT3X
INT2X
INT1X
VCC2-D
VDDL-E
VSS-O
INTOX
ADTRGX
CRTCX
TESTSCAN
TESTMDO
TESTRAM
LED0X
LED1X
LED2X
LED3X
PWMA
PWMB
VSS-N
VSS-M
C18
0.1µ,25V
A
+5V
C41
0.01µ,50V
CASU
CASL
RAMA <9..0>
30
GND
31
INIT
32
33
FAULT
34
N.C.
35
PERIPHERAL
LOGIC HIGH
36
SLCTINX
F
R158 3.3K,1/16W
FB19
BK1608HS241
5
2
R222 3.3K,1/16W
1
<01-C7>
<01-C7>
<01-C7>
3
2
1
0
9
8
7
6
5
4
R159 3.3K,1/16W
~
C82
0.1µ,25V
VDDL
C86
1000p,50V
14
13
12
11
10
9
8
7
6
5
4
3
VDDH 2
1
C20
0.1µ,25V
<03-F5>
<03-B5>
<03-B5>
<03-C5>
<03-C5>
<03-C5>
<03-C5>
<03-C5>
<03-D5>
<03-E1>
<04-F1>
<04-F1>
<03-G1>
<04-F6>
<04-B1>
10
~
C26
0.1µ,25V
VCC2
C84
0.1µ,25V
<03-G5>
<03-E5>
<03-E5>
<03-F5>
<03-F5>
<03-F5>
<03-F5>
9
VCC2
RD
BHW
BLW
RAS2
RAS1
RESET
POWDN
VCC2
<04-E7,01-E2>
<03-G5>
<03-C5>
<03-G5>
<01-B1>
<03-C5>
8
LOGIC BOARD 02
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VDDL VDDH
<01-G2>
<01-G2>
<01-G2>
<01-F2>
<01-F2>
7
D BUS <15..0> 16
C19
0.1µ,25V
<01-G10>
6
VSS-A
VSS-B
HDCC
HEVEN
HBE1
HDCLK
HKK
HKA
HDKK
HDKA
HDLAT
BORS
LFTCX
IOP4
IOP5
VSS-C
VCC1-A
HSUBKA
HSUBKK
HSUBCA
HSUBCC
IP0
IP1
PLLVSS
PLLMON
PLLVCC
VSS-O
VDDH-A
IP2
IP3
IOP0
IOP1
IOP2
VDDL-A
VCC2-A
VSS-E
RAMA4
RAMA5
RAMA6
RAMA7
RAMA8
RAMA9
RAMA0
RAMA1
RAMA2
RAMA3
RAMDEX
RAMWEX
CASHX
CASLX
VSS-F
VSS-G
<01-E7>
<01-E7>
<01-F7>
<01-B6>
<01-B6>
<01-D10>
<01-B6>
5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
<01-G10>
4
R150
1K,1/16W
R160
3.3K,1/16W
4 N.C.
3
DA5 HZM6.8FA
C42
220p,50V
G
All resistance tolerances which are not marked with "%" are 5%.
RAMWE
RAMOE
<01-C7>
<01-C7>
The above diagram showns signals in compatible mode.
5-48
Part 5: Maintenance
BJC-7100
2
3
4
5
6
7
8
BJ CARTRIDGE DRIVERS
R254
100,1/16W
4
10
5
11
DA7
FTZ6.8E
11
OP2
6
7
5
OP1
UPC324G2
2
<04-A7>
4
R195
1.0K,0.5%,
DA10
1/16W
FTZ6.8E
2
HPLED
<01-E2>
HPS
<01-B1>
TEMP
FB60
R177
22K,1/16W
R209
120K,0.5%,1/16W
C46
BK1608HS601
1000p,50V
2
5
2
1
2
4
R235
43K,0.5%,1/16W
4
<01-B1>
6
R228
10K,0.5%,1/16W
7
R255
100,1/16W
4
5
10
11
DA6
FTZ6.8E
11
OP1
R196
1.0K,0.5%,
1/16W
UPC324G2
2
UPC324G2
9
8
3
OP2
2
R227
10K,0.5%,1/16W
R256
100,1/16W
4
3
12
11
DA11
FTZ6.8E
OP2
OP1
R197
1.0K,0.5%,
1/16W
UPC324G2
2
UPC324G2
13
14
5
11
1
DA15
FTZ6.8E
2
R233
43K,0.5%,1/16W
<01-B1>
HTEMPDC
ID2AMM
13
R226
10K,0.5%,1/16W
14
4
3
11
DA11
FTZ6.8E
11
OP2
UPC324G2
+5V
2
1
1
12
R236
12K,0.1%,1/16W
R257
100,1/16W
OP1
R198
1.0K,0.5%
,1/16W
UPC324G2
2
R207
7.5K,0.1%,1/16W
C64
0.1µ,25V
BK32164S601
2
1
2
3
2
4
2
ID1BK
<02-G1>
DCLK
<01-B6>
ID1AMM
<02-G1>
HEATBK
<02-G1>
HEATAMM
<02-G1>
IDATABK
R249
100K,1/16W
FB41
R248
100K,1/16W
BK1608HS601
1/4 FB42
1/4 FB42
BK32164S601
BK32164S601
<02-G1>
IDATAAMM
<02-E1>
RANKBK
<02-E1>
RANKAMM
<02-G1>
LTCLK
FB55
FB56
R204
820,0.1%,1/10W
R203
820,0.1%,1/10W
BK1608LM252
1
2
3
2
4
2
5
1
2
3
2
4
2
BK1608LM252
5
2
2
2
2
1
3
5
HSUBAMM
HSUBBK
TR8
2SB1238R
2
<01-B1>
ID2LC
<02-F1>
ODD
<02-F1>
TR7
2SB1238R
2
R169
10K,1/16W
<02-G1>
HSUBLC
R244
100K,1/16W
R245
100K,1/16W
ID2DC
3
TR6
2SB1238R
2
R175
10K,1/16W
R176
3.3K,1/4W
<02-G1>
HSUBDC
TR10
DTC143ZKA
14
BE1
13
SUBHAMM
12
ID1BK
B
11
DCLK
10
ID1AMM
9
HEATBK
8
HEATAMM
7
IDATABK
6
IDATAAMM
5
RANKBK
4
RANKAMM
3
LTCLK
DA8 FTZ6.8E
DA9 FTZ6.8E
DA9 FTZ6.8E
C
DA9 FTZ6.8E
DA9 FTZ6.8E
DA10 FTZ6.8E
DA10 FTZ6.8E
DA10 FTZ6.8E
1/4 FB59
1/4 FB59
BK32164S601
BK32164S601
2
3
2
TS1BK
1
TS1AMM
CNHEAD2
D
HLW295-2A7NF
29
VH
24
VH
23
GND
22
HVDD
21
TS2LC
20
TS2DC
19
ID2LC
18
2
4
ODD
2
1
17
ID2DC
16
SUBHLC
2
ID1LC
<02-F1>
BE2
<01-A6>
ID1DC
<02-F1>
HEATLC
<02-F1>
HEATDC
<02-F1>
IDATALC
<02-G1>
IDATADC
<02-E1>
RANKLC
<02-E1>
RANKDC
<02-E1>
HRESET
1
3
TR9
2SB1238R
DA11 FTZ6.8E
R247
100K,1/16W
R246
100K,1/16W
1/4 FB59
BK32164S601
2
2
1/4 FB59
BK32164S601
2
FB58
R205
820,0.1%,1/10W
R206
820,0.1%,1/10W
BK1608LM252
BK1608LM252
R184
10K,1/16W
4
1
3
2
5
2
2
2
2
VDDH
5
2
2
FB57
3
4
3
1
5
4
DA12 FTZ6.8E
SENSE
3
BE0
14
SUBHDC
13
ID1LC
12
BE2
DA12 FTZ6.8E
DA12 FTZ6.8E
11
ID1DC
10
HEATLC
9
HEATDC
8
IDATALC
7
IDATADC
6
RANKLC
5
RANKDC
4
HRESE
3
TS1LC
2
TS1DC
1
SENSE
DA13 FTZ6.8E
F
DA13 FTZ6.8E
DA13 FTZ6.8E
DA13 FTZ6.8E
DA14 FTZ6.8E
DA14 FTZ6.8E
DA14 FTZ6.8E
DA14 FTZ6.8E
R199
150K,1/16W
2
15
DA12 FTZ6.8E
2
<01-B1>
E
DA11 FTZ6.8E
BE0
<01-A6>
1
TR13
DTC143ZKA
SUBHBK
DA8 FTZ6.8E
C101
0.1µ,25V
1
3
R172
3.3K,1/4W
ID2AMM
15
DA8 FTZ6.8E
TR14
DTA143EKA
VDDHPOW
<01-A6>
<01-A6>
TR12
DTC143ZKA
EVENE
16
DA8 FTZ6.8E
VH
+5V
R170
10K,1/16W
<02-G1>
ID2BK
17
DA7 FTZ6.8E
2
1
R173
3.3K,1/4W
TS2AMM
18
DA7 FTZ6.8E
+5V
3
TR11
DTC143ZKA
TS2BK
19
VH
R171
10K,1/16W
<02-G1>
TEMP
20
DA7 FTZ6.8E
HVDD
R174
3.3K,1/4W
HPS
21
5
R208
180K,0.5%,1/16W
C50
0.1µ,25V
1/4 FB42
BK32164S601
22
A
DA6 FTZ6.8E
DA15
FTZ6.8E
+5V
R237
33K,0.1%,1/16W
R250
100K,1/16W
1/4 FB42
HPLED
DA6 FTZ6.8E
BE1
<01-B6>
+5V
+5V
4
<01-B6>
<02-G1>
DA15
FTZ6.8E
+5V
1
HTEMPLC
EVENE
2
+5V
<01-B1>
<02-G1>
4
R234
43K,0.5%,1/16W
4
ID2BK
+5V
+5V
HTEMPBK
<01-E2>
GND
23
DA6 FTZ6.8E
UPC324G2
R243
100K,1/16W
GND
24
~
<01-C2>
R224
10K,0.5%,1/16W
8
+5V
C48
0.1µ,25V
~
28
+5V
C63
0.1µ,25V
9
CNHEAD1
~
4
HTEMPAMM
10
LOGIC BOARD 03
HLW285-2A7F
R232
43K,0.5%,1/16W
+5V
9
~
1
G
DA15 FTZ6.8E
All resistance tolerances which are not marked with "%" are 5%.
5-49
Part 5: Maintenance
BJC-7100
1
2
3
4
5
6
7
8
9
10
LOGIC BOARD 04
MOTOR DRIVERS & SENSORS
+5V
VDDM
<03-A5>
R18
10K,1/16W
<02-G1>
<01-D2>
IP1
CRPA
C61
4700p,50V
R20
1,1/4W
R21
1,1/4W
R14
1,1/4W
<01-D2>
CARRIAGE
MOTOR DRIVER
IC13
VDDM
CRPB
1
3
5
7
9
11
13
15
17
19
21
23
25
27
VsA
ALARM
PhaseA
LGA
N.C.
RsA
PG
N.C.
RsB
N.C.
LGB
PhaseB
Vcc
VsB
R17 2.7K,
C69
0.5%,1/16W 0.01µ,50V
C68
0.01µ,50V
R27 30K,
R251
R26
0.5%,1/16W 3.3K,1/16W 3.3K,1/16W
R33
10K,1/16W
ASFS
CRPWMA
<02-B7>
CRAENA
<01-D2>
VM
R300
10K,
1/4W
C76
0.1µ,50V
R15 2.7K,
C71
0.5%,1/16W 0.01µ,50V
R214
22K,1/16W
R217
220,1/8W
CRBENA
<01-D2>
CRPWMB
<02-B7>
PES
C
C70
0.01µ,50V
PAPER END
SENSOR
CNPGS
CNCR
CRA
CRB
CRB
CRA
1
2
3
4
C77
0.1µ,50V
B48-PH-K-5
<01-E2>
C57
100p,50V
PS2
GP1SQ59C
R29 30K,
R253
R28
0.5%,1/16W 3.3K,1/16W 3.3K,1/16W
ZD31
PTZ36A
B
+5V
R32
10K,1/16W
+5V
<01-E2>
PICK-UP ROLLER
SENSOR
C73
220µ,35V
+5V
A
C56
100p,50V
PS1
TLP832
ICP-N38
<01-B1>
TR15
DTA143EKA
R213
22K,1/16W
R216
220,1/8W
VDDM
2
4
6
8
10
12
14
16
18
20
22
24
26
VrefA
CR
ENAA
VmmA
Out1
Out2
Out3
N.C.
Out4
VmmB
ENAB
Decay
VrefB
MTD2005B
C60
0.1µ,25V
SPOWON
+5V
R19
10K,1/16W
R23
1,1/4W
R24
1,1/4W
R13
1,1/4W
R215
220,1/8W
HPLED
Approx.8.3Ω/
phase
CARRIAGE MOTOR
R7
220,1/8W
LEDON
1
FB27
GND
2
FB28
PGS
3
FB29
PURGE SENSOR
BK1608LM252
C54
0.01µ,50V
BK1608HS601
+5V
R211
22K,1/16W
BK1608LM252
PGS
<01-E2>
D
C16
100p,50V
175487-3
+5V
<02-E1,01-E2>
R135
22K,1/16W
POWSW
C33
0.01µ,50V
SW1
1
3
2
4
POWER
SKHVLH
+5V
PAPER FEED
MOTOR DRIVER
IC14
R37
1,1/4W
R38
1,1/4W
R39
1,1/4W
R40
1,1/4W
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VmmA
N.C.
Out1
N.C.
RsA
N.C.
Out2
Out3
N.C.
RsB
N.C.
Out4
N.C.
VmmB
LGB
GND
GND
LGA
ENAA
PHAA
CR
ALARM
VrefA
VsA
VsB
VrefB
Vcc
DECRY
PHAB
ENAB
MTD2005FB
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R136
22K,1/16W
VCC
<01-E2>
R46
10K,1/16W
VDDM
R43
10K,1/16W
C72
4700p,50V
R44
10K,1/16W
VDDM
R238 1.5K, C74
0.5%,1/16W 0.01µ,50V
C34
0.01µ,50V
LFIA0
LFPA
<01-D2>
<01-D2>
IP0
LFPWMA
<02-G1>
<01-B1>
<01-E2>
C35
0.01µ,50V
BUTTONS
<02-B7>
Approx.6.0Ω/
phase
<02-B7>
2
4
F
LED0
R10
150,1/8W
LED1
POW1
SEC2552C
3 K
A 2
1 K
A 4
+5V
POWER
R9
150,1/8W
<02-B7>
PAPER FEED
MOTOR
CARTRIDGE
SW3
1
3
SKHVLH
<01-D2>
<01-D2>
CNLF
175487-4
RESUME
R137
22K,1/16W
COVER
C78
0.1µ,25V
LFA
LFB
LFB
LFA
2
4
+5V
R241 16K,
R252
R242
0.5%,1/16W 3.3K,1/16W 3.3K,1/16W
1
2
3
4
1
3
SKHVLH
LFPB
LFIA1
R45
10K,1/16W
ERRSW
C75
0.01µ,50V
E
SW2
INDICATORS
LED2
ERROR
R8
220,1/8W
G
ERR1
SEC1901C
All resistance tolerances which are not marked with "%" are 5%.
5-50
Part 5: Maintenance
BJC-7100
1
2
3
4
5
6
7
8
9
10
LOGIC BOARD 05
POWER SUPPLY
A
CNPWR
VH
C107~C110
1000p,50V x4
1
C51
2200µ,25V
VHGND
VM
B
ETH6
1
E
2
VH
2
ETH5
1
E
2
3
ETH4
1
E
2
VM
VDDH
VCC1
D6
RB501V-40
VCC3
C111
1000p,50V
VMGND
C
4
REGULATOR
IC16
+5V
5V
5
2
C52
220µ,10V
5VGND
C112
1000p,50V
C125
0.47µ,50V
C30
100µ,16V
IN OUT
GND
1
D
3
VRAM
C31
100µ,16V
C130
0.1µ,25V
7
FB31
VHPOW
C123
1000p,50V
C113
1000p,50V
C131
1000p,50V
BK1608LM252
1
2
VDDL
<01-B1>
C87
100p,50V
GND
C122
0.1µ,25V
6
E
VHENB
C38
0.1µ,25V
BA033FP
E
8
1
2
VCC2
E
BBB-EH
VCC
C115
1000p,50V
C116
1000p,50V
C117
1000p,50V
C118
1000p,50V
C119
1000p,50V
F
G
5-51
The printing paper contains
70% waste paper.
PRINTED IN JAPAN (IMPRIME AU JAPON)
CANON INC.