OKIDATA OKIPAGE 8cn Service manual

Front Cover

Service Guide - OKIPAGE 8c

Chapter 0 Introduction

OKIPAGE 8c / OKIPAGE 8cn

LED PAGE COLOR PRINTER PRODUCTS

Adobe Acrobat printable reference copy of the OKIDATA Service Training Manual.

11/02/98 Rev. 2.0

Note: This Adobe Acrobat version of the Okidata Service Training Manual was built with the pictures rendered at 72 dpi, which is ideal for screen viewing. For future updates to this manual, and more on-line information visit our Business Partner Exchange

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Table of Contents

Service Guide - OKIPAGE 8c

0 Introduction

Preface

1 Specifications

1.1 Basic System Configuration

1.2 Printer Specifications

1.3 Option Specifications

1.4 Basic Specifications

2 Operation

2. Operation

2.1 Main Control Board (PCR PCB)

2.2 Engine Control Board (PX4 PCB)

2.3 Power/Board

2.4 Mechanical Processes

....2.4.1 Electrophotographic processing mechanism

....2.4.2 Paper running process

2.5 Sensors

....2.5.1 Paper Related Sensors

....2.5.2 Other sensors

2.6 Correction of Color Deviation

2.7 Transfer Control according to Environmental Changes

2.8 Form Jam Detection

2.9 Cover Opening

2.10 Toner Lower Detection

2.11 Page Size Detection

2.12 Power-on Processing

3 Disassembly

3.0 Parts Replacement

3.1 Precautions for Parts Replacement

3.2 Parts Layout

3.3 How to Change Parts

....3.3.1 Cover Assy Rear

....3.3.2 Motor-Fan (80-25)

....3.3.3 Paper Eject Assy

....3.3.4 Cover Assy Stacker, Guide Eject FD Assy

....3.3.5 Upper Frame Assy

....3.3.6 Plate Support Assemblies

....3.3.7 Limiter 2way (L), (R) / Plate Guide (L), (R)

....3.3.8 Cover

....3.3.9 PCR PCB Assy

....3.3.10 Motor Fan

....3.3.11 PXF PCB/PX4 PCB

....3.3.12 Gear Heat Assy

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5

6

3

4

Table of Contents Page

....3.3.13 Main Motor (A), (B) Assy

....3.3.14 Gear One-way (Z30)

....3.3.15 Motor Assy Belt

....3.3.16 Power Supply Unit, Holder Inlet, Sheet Insulation

....3.3.17 Sensor Assy Box Toner

....3.3.18 Square-shaped Connector

....3.3.19 Motor - Pulse (ID)

....3.3.20 One-way Gears

....3.3.21 Feeder Unit Front

....3.3.22 Manual Feed Hopper Assy

....3.3.23 Guide Paper Input Assy

....3.3.24 Two Lever Input Sensors, Lever 2nd Feed Sensor

....3.3.25 Roller Registration, Roller Assy Hopping

....3.3.26 Hopping Roller Assy

....3.3.27 PXU PCB/PXM PCB, Lever Resist Sensor

....3.3.28 Paper End Lever

....3.3.29 PCO PCB (Operator Panel)

....3.3.30 Holder Gear Toner Assy

....3.3.31 Plate Latch Lever (FD), Spring Latch Lever (FD)

....3.3.32 Transfer Belt

....3.3.33 High Voltage Power Supply Unit, Bracket HV (BT)

Assy

....3.3.34 Eraser Bracket Assy, Eraser Bracket (KCM) Assy

....3.3.35 Shaft Link

....3.3.36 Contact Bracket (BL-R) Assy, Contact Bracket (CL-R)

Assy

....3.3.37 Contact (BL-L) Assy, Contact (CL-L) Assy

....3.3.38 Contact SB Assy

....3.3.39 PXC PCB

....3.3.40 Heat Unit Assy (Fuser unit and oil roller)

....3.3.41 Oil Roller Kit 68

....3.3.42 Lever Lock Heat (L)/(R), Guide Side Heat, Spring Lock 69

....3.3.43 PXL PCB

....3.3.44 Heat Unit Guide Assy

70

71

....3.3.45 Holder LED Assy, LED Head

4 Adjustments

64

65

66

67

72

56

57

58

59

60

61

62

63

4. Adjustments

4.1 Maintenance Modes and Their Functions

....4.1.1 User maintenance mode

....4.1.2 System maintenance mode

....4.1.3 Engine maintenance mode

4.2 Adjustments after Parts Replacement

....4.2.1 Confirm the LED head driving time

73

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77

78

79

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52

53

54

55

46

47

48

49

50

40

41

42

43

44

45


....4.2.2 Color Registration Using the Operator Panel (Color deviation correction)

5 Maintenance

Preventive Maintenance

....5.1 Periodically Replaced Parts

....5.2 Cleaning

....5.4 Cleaning the Pickup Roller

6 Troubleshooting Procedures

6.0 Troubleshooting Procedures

....6.1 Troubleshooting Tips

....6.2 Points to Check before Correcting Image Problems

....6.4 Preparation for Troubleshooting

....6.5 Troubleshooting Flow

........6.5.1 LCD status message/problem list

........6.5.2 LCD message troubleshooting

........6.5.3 Image Troubleshooting

............Blank paper

............Vertical black

............Vertical white

............Poor fusing (Images are blurred or peeled off when touched)

............Evenly spaced, repeating marks

............Missing characters or colors

............Poor synthesization Color

............Printout colors different from original colors

7 Wiring Diagram

7.1 Resistance Check

7.2 Program/Font ROM Location

8 Centronics Parallel Interface

Centronics Parallel Interface

A Illustrated Parts List

Diagram A1: Covers (Top & Sides)

Diagram A2: Printer Unit

Diagram A3: Main Chassis Unit (1)

Diagram A4: Main Chassis Unit (2)

Diagram A5: Main Chassis Motor/PCB

Diagram A6: Frame Upper Assy

Diagram A7: Guide Cassette (R) Assy

Diagram A8: Main Motor (A) Assy

Diagram A9: Main Motor (B) Assy

Product Accessory: I. Second Paper Feed

Preface

1.0 Outline

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....1.1 Functions

....1.2 External View and Component Names

2.0 Mechanism Description

....2.1 General Mechanism

....2.2 Hopper Mechanism

3.0 PARTS REPLACEMENT

....3.1 Precautions Concerning Parts Replacement

....3.2 Parts Layout

....3.3 Parts Replacement Methods

........3.3.1 Idle rollers

........3.3.2 AOLT-PCB

........3.3.3 Hopping motor

........3.3.4 Feed roller

........3.3.5 Hopping roller

........3.3.6 Side frame (L) assy

........3.3.7 Side frame (R) assy

4.0 Troubleshooting

....4.1 Precautions Prior to the Troubleshooting

....4.2 Preparations Prior to the Troubleshooting

....4.3 Troubleshooting Method

........4.3.1 LCD Status Message List

........4.3.2 Troubleshooting Flow

5.0 CONNECTION DIAGRAM

....5.1 Interconnection Diagram

....5.2 PCB Layout

6. PARTS LIST

....High Capacity Second Paper Feeder

....2nd Tray Assembly

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Page: 2


Chapter 0 Introduction

Preface

This manual provides procedures and techniques for the troubleshooting, maintenance, and repair of

OKIPAGE 8c.

This manual is written for maintenance personnel, but it should always be accompanied with the

OKIPAGE 8c User's Manual for procedures for handling and operating OKIPAGE 8c. For repairing each component of OKIPAGE 8c, see the Troubleshooting Manual.

[Notices]

The contents of this manual are subject to change without prior notice. Although reasonable efforts have been taken in the preparation of this manual to assure its accuracy, this manual may still contain some errors and omissions. OKI will not be liable for any damage caused or alleged to be caused, by the customer or any other person using this maintenance manual to repair, modify, or alter OKIPAGE 8c in any manner.

[Warning]

Many parts of OKIPAGE 8c are very sensitive and can be easily damaged by improper servicing. We strongly suggest that OKIPAGE 8c be serviced by OKI's authorized technical service engineers.

Copyright 1998, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business

Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)


Chapter 1 Specifications

1.1 Basic System Configuration

This diagram shows the basic system configuration of OKIPAGE 8c.

Page: 3

Basic System Configuration Diagram





1.2 Printer Specifications

This printer unit is composed of the following hardware.

z z z z z

Electro-photographic processor

Paper feeder

Controller (CU part / PU Part)

Operator panel

Power board (High voltage part / PU part)

This diagrams shows the printer unit configuration.

Page: 4

Printer Unit Configuration Diagram



1.3 Option Specifications

The OKIPAGE 8c options are listed below.

(1) Second Paper Feeder



Page: 5 z

(2) RAMM SIMM module (72 pin SIMM, 4MB/8MB/16MB/32MB)

Make sure to use a set of 2 of the same volume size modules.



Page: 6



1.4 Basic Specifications

(1) Dimensions

(2) Weight

(3) Form

Width: 18.8"

Approx. 91 lbs. without box

Type: Ordinary paper (Hammermill xx lb.) and Transparency (Only CG3710)

Recommended paper (for color printing)

Note: the printout color tones are dependent upon the whiteness of the print paper.

Sizes: Letter, Legal (13" or 14"), Executive, A4, A5, B5, and B6 (1st tray and front feeder)

(8) Frequency

(9) Noises

Reams: 1st tray - 20 lbs. to 28 lbs.

2nd tray - 20 lbs. to 28 lbs.

Front feeder - 20 lbs. to 44 lbs.

(4) Printing speed:

8 pages per minute (5 pages per minute: Transparency / 34 lb. ~ 44 lb.,

123g/m

2

~ 166g/m

2

)

(5) Resolution

(6) Input voltage

600 dots per inch x 600 dots per inch

120VAC +5.5%, -15%

230VAC to 240VAC +10%, -14%

(7) Power consumption

Peak: Approx. 980W

Typical operation: Approx 230W

Idle: Approx 70W

Power save mode: Approx 32W

50Hz or 60Hz +2%, -2%

(10) Expendables and service life

(11) Periodically replaced parts

Operating: 54 decibels (without 2nd tray), 55 decibels (with 2nd tray)

Standby: 45 decibels

Power-saving: 43 decibels

Toner Cartridge: Approx. 1800 pages (5% density) (each of Y, M, C, and

K)

Image Drum: Up to 12,000 pages (5% density, continuous) (each of Y, M,

C and K)

Waste Toner Box: Up to 25,000 sheets (under typical printout conditions:

Single images of 5% density, equivalent to printout using 14 toner cartridges)

Oil Roller Unit: Up to 10,000 sheets (Life defined in the number of actual printed paper sheets)

Note: Y=Yellow, M=Magenta, C=Cyan, K=Black

Fuser Heat Unit Assy: 60,000 pages

Transfer Belt Cassette Assy: 50,000 pages

(12) Temperatures and relative humidities

Temperature

Fahrenheit

Temperature conditions

Celsius Remarks

Operating 50 to 89.6

Non-operating

Storage (1 year max.)

32 to 109.4

-14 to 109.4

Delivery (1 month max.) -20 to 122

Delivery (1 month max.) -20 to 122

Humidity

10 to 32

0 to 43

-10 to 43

-29 to 50

-29 to 50

17 Celsius to 27 Celsius (for assurance of full-color printout quality)

Power off with drum and toner without drum and toner and Belt Cassette

Assy with drum and toner

Operating

Non-operating

Storage

Delivery

Fahrenheit

20 to 80

10 to 90

10 to 90

10 to 90

Humidity condition

Celsius Remarks

5

26.8

(13) Printer life - 3,000,000 (A4) pages or 5 years

35

40

50% to 70% (for assurance of full-color printout quality)

Power off



Page: 7


Chapter 2 Operation

2. Operation

OKIPAGE 8c is a tandem color electrophotographic page printer, using 4992 Pixel-LED technologies,

OPC, dry single-component non-magnetic developing, roller transfer, heat-compression fixing (fusing).

The printing method used is a Black Writing method which applies light beams to printout areas.

Here is the Functional Block Diagram of OKIPAGE 8c.

Functional Block Diagram



Page: 8



2.1 Main Control Board (PCR PCB)

The control board consists of a CPU (NR4700) block, a memory control LSI block, an interface control

LSI block, a DRAM block, an EEPROM block, a mask ROM block, and an interface block.

Here is the Functional Block Diagram of the main control board (PCR PCB).

Functional Block Diagram of Main Control Board

(1)

(2)

(3)

(4)

(5)

(6)

(7)

CPU

The CPU is a 64-bit RISC architecture processor (provided y NKK). It inputs a frequency of 50 MHz and runs at 100 MHz. It transfers data to a from memory at 50 MHz.

Mask ROM

The mask ROM block consists of four 16 Mbit (1M x 16 bits) chips and its total size is 8M bytes. The chips are mounted on the PCR-PCB by means of IC sockets and store programs and character fonts.

DRAM

The DRAM block consists of eight 16 Mbit (1M x 16bits) chips and its total size is 16M bytes. The chips are mounted on the PCR-PCB and can be expanded up to 80M bytes by adding the 32M byte SIMMs to the SIMM slots on the PCR-PCB.

EEPROM

The EEPROM block consists of 1K-bit chips mounted on a board by means of IC sockets and stores the following: z z z

Menu data

Counter values

Adjustment values

Flash ROM

The Flash ROM block consists of four 4M bit (256K x 16bits) chips and its total size is 2M bytes. The chips are mounted on the PCR-PCB and are used for storing fonts, macro and demo pages.

Memory control LSI

This block mainly consists of memory control, CPU control, compression and decompression, and video interface functions.

Interface control LSI

This block mainly consists of PU interface control, operator panel interface control,

EEPROM control, parallel interface control, and HSP control functions.

(8) Host interface

The printer has the following interfaces to the host.

Centronics bi-directional parallel interface

OKI HSP interface (Option)

The single effective interface or the automatic interface select mode can be selected using the menu. If the busy state of the printer continues for a long time period, the buffer near-full control releases the busy status at constant intervals even if the host side is busy so as not to cause interface time-out at the host side.

(a) Centronics bi-directional parallel interface

This is an interface confirming to IEEE-1284 and provides either unidirectional ad bi-directional communications according to each of the following communication modes.

Compatibility mode - Unidirectional communications from the host to the printer.

Nibble mode - This mode transfers 4-bit wide data from the printer to the host. In this mode, each bit of 1-byte data transmits in the form of two nibbles using

ERROR, BUSY, FAULT, and SELECT signal leads. This mode can provide bi-directional operation in combination with the compatibility mode.

ECP mode - This mode provides the asynchronous bi-directional interface and transmits and receives 1-byte data using eight data signal leads under semi-duplex control by the host.

When the power is turned on, the compatibility mode is automatically selected. The change to another mode form the compatibility mode is made through negotiation. (When the BI-DIRECTION is set to ENABLE in the menu, this change can be performed.) (For the electrical/physical characteristics of this interface, see APPENDIX B).

(b) OKI HSP interface (Option)

This interface (slot) is an OKI unique universal interface that provides the platform to connect various boards (including those supplied by third vendors) such as the LAN connection expansion board and SCSI expansion board.

Any expansion boards compatible with this interface can be mounted on the Control board the piggyback board from without modifying the program at the printer side. Refer to the Conceptual Diagram of the OKI HSP interface.

Conceptual Diagram of OKI HSP Interface

(9) RAM module

z

Pin layout z Basic specification

Type:

Access time:

Capacity:

Parity:

72 pins SIMM (32 bits buss width)

60ns, 70ns, 80ns

4, 8, 16 32 or 64MB

None





2.2 Engine Control Board (PX4 PCB)

ANALOG INPUT

(Heater temperatures and environmental humidity and temperature)

Yellow (Y), Magenta (M), Cyan (C), Black (B)

Page: 9

Engine Control Board Block Diagram

The engine control block (PU) is controlled by the engine control board (PX4 PCB) which consists of a

CPU (MSM65524), general purpose LSI chips, EPROM, EEPROM, pulse motor drivers, and video memory. Refer to the Engine Control Board Block Diagram.

(1) CPU

This is an 8-bit CPU (OKI MSM65524) containing the AD converter and controls the whole system.

(2) General-purpose LSI

This LSI (MB87D113PFV) is provided in the printer engine control block and has controller-engine video interface, LED interface, motor control, sensor input, video memory control, main scanning color correction, skew correction, high-voltage power control, and

OST-EX2 functions.

(3) EPROM

This EPROM (275C512-150) has a storage capacity of 512K bits and stores programs for the PU block.

(4) EEPROM

This EEPROM (NM93C66N-NW) has a storage capacity of 4K bits. It is mounted on the board by means of IC socket and stores adjustment values.

(5) Pulse motor drivers

These drivers (MTD2005F) drive eight pulse motors for moving up and down the image drum (EP) and transferring medium.

(6) Video memory

This SRAM received print data through video interface and stores it.



Page: 10



2.3 Power/Board

The power board consists of an AC filter circuit, a low voltage power supply circuit, a high voltage power supply circuit, and heater drive circuit, and photo sensors.

(1) Low voltage power supply circuit.

This circuit generates the following voltages.

Output voltage

+3.3 V

+5 V

+32 V

+12 V

-12 V

Use

CU Unit CPU, LED HEAD

Logic circuit supply voltage

Motor and fan drive voltage and source voltage for high-voltage supply, discharge lamp

HSP, OP Amp, high voltage power supply

HSP

(2) High voltage power supply circuit

This circuit generates the following voltages necessary for electro-photographic processing from +32 V in accordance with the control sequence from the control board. When cover open state is detected, +32 V supply is automatically interrupted to stop the supply of all high-voltage outputs.

YMCK = Yellow, Magenta, Cyan, Black

CH

Output

DB

SB

TR

FIX

-1.35 KV

±

50V

Normal paper

Voltage

Y.M.C.K.: -250V/+300V, -232V/+300V

(First paper: Y only)

Use

Voltage applied to charging roller

Voltage applied to developing roller

K.: -270V/+300V

Transparency

Y.M.C.: -200V/+300V, K.:

-250V/+300V

Y.M.C.K.: -650V/0V

0 to 4 KV

0 to 2.5 KV

Remarks

Voltage applied to toner supply roller

Voltage applied to transfer roller

Voltage applied to transfer roller

Variable

Variable





2.4 Mechanical Processes

Here is the Mechanical Process Diagram of OKIPAGE 8c.

Page: 11

Mechanical Process Diagram (Figure 2.5)





2.4.1 Electrophotographic processing mechanism

(1)

Electrophotographic processed - Each process of the electrophotographic processing mechanism is outlined below.

(1) Paper pickup - This process causes the roller to give a DC voltage to the paper, resulting in a negative charge. With this negative charge, the paper is electrostatically attracted to the roller.

(2) Charging - This process gives a DC voltage to the charge roller so that the image drum may have a uniform negative charge on its surface.

(3) Exposure - This process causes the LED head to apply light beams according to image signals to the negatively-charged surface of the image drum. The negative charge on the illuminated surface of the image drum is reduced according to magnitudes of the light beams. Thus, a latent image is formed on the surface of the image drum according to the resulting surface potentials.

(4) Developing and recovery of excessive toner - This process applies negatively-charged toner to the surface of the image drum. The toner is electrostatically attracted to the latent image to form a visible image on the surface of the image drum.

Simultaneously, this process electrostatically transfers excessive toner from the image drum to the developing roller.

(5) Transferring - This process fits paper to the surface of the image drum and applies positive charge (opposite to the charge of the toner) to the back side of the paper from the transfer roller. The toner image is transferred to the paper.

(6) Cleaning - Cleaning blade scrapes off the remaining toner of any image drum, which has been used to transfer the image drum the drum to the paper.

(7) Fixing - This process fixes the toner image on the paper by pressing the fusing the image.

(2) Paper pickup

Page: 12

A DC voltage (0V to 2KV) is applied to the driven roller A, to create a positive charge on the lower surface of the paper. The kept in charged paper is electrostatically attracted to the pickup roller. The paper is in close contact with the conveying Belt and moves steadily.

(3) Charging - This process applies a DC voltage to the charging roller in contact with the surface of the image drum.

(4) Exposure - The light beams from the LED head are applied to the surface of the image drum which is charged negatively. The negative charge on the illuminated surface f the image drum is reduced according to the magnitude of the light beams and a latent image is formed on the surface of the image drum according to the resulting surface potentials.

(5) Developing - This process applies toner to the latent image on the surface of the drum to create a toner image.

Developing is carried out on the surface of the image drum at where the image contacts with the developing roller.

(1) The sponge roller transfers toner to the developing roller. The toner is charged negatively.

(2) The toner blade scrapes away excess toner from the developing roller, leaving a thin film of toner on the surface of the developing roller.

(3) The toner is attracted to the latent image on the surface of the image drum, where the image drum contacts the developing roller. The latent image on the surface of the image drum is made visible with the toner.

(6) Transferring - The transfer roller made of conductive sponge presses the paper against the surface of the image drum. The paper will make close contact with the surface of the image drum. This process fits the paper to the surface of the image drum (using the transfer roller) and applies a positive charge

(opposite to the charge of the toner) from under the paper. When a positive high voltage is applied to the transfer roller from the power supply, the positive charge induced on the transfer roller jumps to the upper surface of the paper (where the transfer roller touches the paper) and attracts the negatively-charged toner from the surface of the image drum onto the surface of the paper.

(7) Fixing - The toner image just transferred to the paper is fused and fixed to the paper while the paper is passing through the gap between the heat roller and the backup roller. The teflon-coated surface of the heat roller is heated by the 800-watt heater (or a halogen lamp) in the heat roller. The temperature of the heat roller surface is controlled by a thermistor in contact with the surface of the heat roller. A thermostat is provided for safety. When the heat roller temperature rises above the preset temperature, the thermostat opens and shuts off power to the heater in the heat roller. The backup roller is evenly pushed against the heat roller by two end springs.

(8) Cleaning - The toner which remains on the (OPC) Image Drum without being fused is scraped by a cleaning blade and discarded in the waste toner tank.





2.4.2 Paper running process

How paper moves through the OKIPAGE 8c is shown in the Paper Route Diagram.

Y=Yellow; M=Magenta; C=Cyan; K=Black

Page: 13

(1) Paper hopping and transfer and up/down movement of pinch roller 2

Paper is hopped and delivered by the mechanism shown below. This mechanism is driven by a single pulse motor.

The pulse motor turns in the arrow direction (a) and drives the hopping roller in the direction of "b". The hopping roller drives the resist roller. Gears A, B, and C, have one-way clutches to prevent the roller form rotating reversely.

a) Hopping

(1) The pulse motor turns in the arrow direction of "a" (counterclockwise) and drives the hopping roller to move the paper until the Entrance sensor turns on. Although the one-way gears B and C are driven, the resist roller 2 does no turn.

The reverse rotations of the one-way clutch gears are not transmitted to the resist roller.

(2) After the Entrance sensor turns on, the hopping roller keeps on feeding the paper until it hits the resist roller 1. This operation corrections any paper skew.

b) Conveying

(1) After paper hopping is completed, the pulse motor turns right (in the direction of "b") to drive the resist rollers 1 and 2. The resist rollers feed the paper until the Form sensor turns on. Although the one-way gear A is also driven, the hopping roller does not turn because of the one-way clutch.

(2) The paper is further fed in synchronism with the print data.

(2) The hopping operation of the front feeder and the up/down operation of the pinch roller 2 are performed by a single pulse motor.

When the pulse motor of the front feeder turns right (in the direction of "A"), the front hopping roller turns left (in the direction of "b") to drive the cam. This cam moves up an down the pinch roller 2. The one-way clutch gears are made to turn only in a present direction by means of the one-way clutches.

(a) First and second hopping rollers

1 When the front edge of the paper passes by the pickup roller, the pulse motor of the front feeder turns counter-clockwise (in the direction of "b" to drive the cam. The cam moves up the pinch roller 2. Although the one-way clutch gear A is also rotating, the hopping roller of the front feeder does not rotate (because of the one-way clutch).

2 When the rear edge of the paper passes by the Entrance sensor 2, the pulse motor of the front feeder turns counter-clockwise (in the direction of "b") to drive the cam. The cam moves down the pinch roller 2 until it is sensed by the sensor. Although the one-way clutch gear A is also rotating, the hopping roller of the front feeder does not rotate (because of the one-way clutch).

(b) Front feeding hopping

(1) The pulse motor of the front feeder turns right (in the direction of "a") to drive the hopping roller. The paper feeds until the Entrance sensor 2 is activated. Although the one-way clutch gear

B is also rotating, the pinch roller 2 does not drive the up/down cam (because of the one-way clutch). After the Entrance sensor is activated, the paper feeds until it reaches the resist roller.

(2) This operation corrects any paper skew.

(c) Conveying

(1) After paper hopping is completed, the pulse motor turns right (in the direction of "b") to drive the resist rollers 1 and 2. The resist rollers feed the paper until the Form sensor turns on.

(2) Although the one-way gear A is also driven, the first hoping roller does not turn (because of the one-way clutch).

(2) Up/down movement of the image drum unit and rotation of the image drum.

The up/down movement of the image drum unit and the rotation of the image drum are performed by a mechanism shown below. (See Figure 2.6-a). This mechanism is driven by a single pulse motor.

When the pulse motor turns left (Counter-clockwise), the up/down gear turns left (in the direction of "a"), and the up/down lever (see Figure 2.6-b) moves up (in the direction of "a". The up/down lever pushes up the up/down actuator of the image drum unit. The image drum unit moves up as shown in Figure 2.6-b). The image drum rotates freely.

When the pulse motor (see Figure 2.6-a) turns right (Counter-clockwise), the image drum gear turns left (Counter-clockwise) and the up/down gear (one-way gear) is released. The weight of the image drum unit is applied to the up/down lever via the up/down actuator of the image drum unit. The free up/down gear turns right (in the direction "b" in Figure 2.6-a), and the image drum unit goes down until the up/down actuator of the image drum unit is stopped by the up/down lever. (See Figure 2.6-c). During this, the image is transferred onto the running paper.

Upward Movement of Image Drum

Downward Movement of Image Drum

(3) Lubrication and cleaning of fixing, ejecting, and heat rollers.

The fixing roller, the ejecting roller, and the heat roller are lubricated and cleaned by a single pulse motor.

When the heat roller pulse motor turns right (in the direction of "a"), the heat roller and the backup roller turn left (in the direction of "a") to fix a toner image onto the paper.

At the same time, three ejection rollers turn right (in the direction of "a") to eject the paper. The oil roller and the oil cleaning roller turn left (in the direction of "a") to supply oil to the surface of the heat roller and clean the surface.



Page: 14



2.5 Sensors

2.5.1 Paper related sensors

2.5.2 Other sensors



2.5.1 Paper Related Sensors



Page: 15

Sensor

FF sensor 1/2

(Entrance sensor 1/2)

Write sensor

Ejection sensor

Function

Detects the front edge of an incoming paper and determines timing to change from hopping to conveying.

Sensor status

ON: Front edge detected

OFF: Front edge not detected

Detects the front edge of the conveyed ON: Form present paper sheet and determines the length of the OFF: Form absent paper sheet from elapsed time before the front edge of the paper reaches the sensor.

Detects the front and rear edges of a paper sheet and determines whether the paper is ejected.

ON: Form present

OFF: Form ejected



Page: 16



2.5.2 Other sensors

(1) Form end sensor

This sensor checks whether the paper cassette is empty.

(2) Front Feeder form end sensor

This sensor checks whether the front feeder has paper.

(3) Front Feeder home switch

The microswitch checks whether the front feeder stage is in the up or down position.

(4) Image Drum

Image drum up/down sensor (one for each color Y, M, C, K)

Y = Yellow, M = Magenta, C = Cyan, K = Black

(5) Waste toner sensor

This sensor judges whether the waste toner cartridge is full by measuring a time period at which the sensor lever turns on periodically. When the time period falls under a preset value, the system judges that the waste toner cartridge is full and displays the "waste toner full" message.

(6) Resist up/down sensor

This sensor detects the up or down position of the resist roller 2.

(7) Temperature sensor

Refer to 2.7 (Transfer Control according to Environmental Changes).

(8) Humidity sensor

Refer to 2.7 (Transfer Control according to Environmental Changes).



Page: 17



2.6 Correction of Color Deviation

OKIPAGE 8c is equipped with an array of I/D units which cannot be from generation of color deviations. This mechanic below.

(1) Color deviations to be corrected

1 Color deviation in the X axis (Positional error of the LED head)

2 Diagonal color deviation (Positional error of the LED head)

3 Color deviation in the Y axis (Positional errors of the I/D units and light receivers)

(2) Method of correction Print out the preset color chart, compare the printed color chart by the original color chart, and enter the amount of color deviation of each color from the operator panel or from the host computer. OKIPAGE 8c calculates correction values from the entered values and changes the write timing of each color (cyan, magenta, and yellow) relative to black.



Page: 18



2.7 Transfer Control according to Environmental Changes

Transfer Control according to Environmental Changes Room Temperatures and Relative Humidities)

OKIPAGE 8c measures the room temperature and humidity. It uses a room temperature sensor and a room humidity sensor. An optimum transfer voltage is calculated, using the obtained environmental conditions. The unit then prints, using the optimum transfer voltage.



Page: 19



2.8 Form Jam Detection

OKIPAGE 8c checks for a paper jam when the page printer is powered on, and during printing. When a paper jam is found, the OKIPAGE 8c immediately stops the printing process. To recover the printer, open the cover, find and remove the jammed paper, then close the cover.

Error

Form feed jam

Convey jam

Ejection jam

Form size error

Conditions

Three hopping operations are made, but the Form Feed sensor

(Entrance) does not turn on within a preset time after the Form Feed sensor 1 turns on.

The ejection sensor does not turn on within a preset time period after the Write sensor detects the front end of paper.

The eject sensor detected the front edge of the paper, but does not detect the rear edge of the paper within a preset time period.

The form size (obtained by measuring the time period between the rear edge of the paper passes by the Form Feed sensor 2 after the front edge of the paper passed the Write sensor) is longer by 45mm than the specified form length.

* To obtain the form size, measure the time interval from when the front edge of the paper passes the

Write Sensor until the rear edge of the paper passes the Form Feed Sensor 2. A Form Size Error occurs when the specified length is exceeded by 45 mm.



Page: 20



2.9 Cover Opening

When the upper, side, or front cover of the OKIPAGE 8c is opened, the Cover open microswitch turns off, the voltage of 32V to the high-voltage power supply is shit off, and all high-voltage outputs are shut off. At the same time, the CPU receives a signal (CVOPN), (indicating the status of the microswitch), and performs the cover open process.



Page: 21



2.10 Toner Lower Detection

Composition

The device consists of the stirring gear (which rotates at a constant rate), the stirring bar, and the magnet on the stirring bar. The stirring bar rotates by engaging with the concave section in the stirring gear.

Operation

Toner Low is detected by monitoring the time interval between engagement of the magnet set on the sensor lever and the magnet on the stirring bar.

OPERATION during toner full state

z z

The stirring bar rotates by interlocking with the stirring gear.

When the magnet on the stirring bar reaches its maximum height, the other end of the bar is dipped in the toner. The stirring bar is pushed by the stirring gear.

Operation during toner low state

z z

When the stirring bar reaches the maximum height, the lack of toner provides no resistance on the other end. The bar falls to the minimum height, due to its own weight.

The time length of the encounter (between the stirring bar magnet and the sensor lever magnet), counter with the magnet of the sensor lever becomes long. By monitoring this time interval, toner low is detected. z z z z

When the toner low state is detected 2 times consecutively, Toner Low is established.

When the toner full state is detected 2 times consecutively, Toner Low is canceled.

When there is no change with the toner sensor for 2 cycles (1.965 sec. x 2) or more, the Toner

Sensor Alarm is activated.

The toner sensor is not monitored while the drum motor is in halt.



Page: 22



2.11 Page Size Detection

The four tab pieces are driven according to the setting position of the paper guide (through the cam interlocked with the paper guide of the paper cassette).

When the paper cassette is inserted into the printer, the position of the tab pieces is detected by a microswitch, recognizing the paper size.

STATE OF MICROSWITCHES

1

1

1

1

SW1

0

0

0

1

1

0

0

1

SW2

1

1

0

1

0

0

1

0

SW3

1

0

1

1

0

1

1

1

SW4

1

1

1

0

Paper size

Letter

Executive

A4

Legal 14

Legal 13

B5

A5

A6





2.12 Power-on Processing

2.12.1 Self-diagnostic test

(1) Initial test

The following check are automatically performed when the printer is power on:

(a) ROM check

(b) RAM check

(c) EEPROM check

(d) Flash ROM check

(2) ROM check

(a) Checks ROM by comparing the sum of bits in the received data unit by the number of bits in the transferred data unit.

(3) RAM check

(a) Checks RAM by writing a preset data patter in RAM, reading the contents of RAM, and comparing the data read from RAM by the data written in RAM. (Write-read test).

(b) Checks optional RAM (if it is installed).

(c) Checks resident RAM by exclusively O Ring high and low addresses (to prepare

16-bit data units), writing a preset 16-bit data patter in RAM, reading the contents of

RAM, and comparing the data read from RAM by the data written in RAM. Checks optional RAM by writing and reading 32-bit fixed patterns ("5555h" and "aaaah") in optional RAM.

(4) EEPROM check

(a) Checks identification numbers stored in the fixed addresses of EEPROM.

(b) Checks the contents of the menu area (by control firmware) and the engine area (by engine firmware).

(5) Flash ROM check

Checks Flash ROM by writing a present data pattern in Flash ROM, reading the contents of Flash ROM, and comparing the data read from Flash ROM by the data written in Flash

ROM. (Write-read test).

(6) Option check unit

Checks whether the optional units (such as the second tray, and PS SIMM) have been installed before entering the operation mode.

Page: 23



Page: 24


Chapter 3 Disassembly

3.0 Parts Replacement

3.1 Precautions for Parts Replacement

3.2 Parts Layout

3.3 How to Change Parts





3.1 Precautions for Parts Replacement

(1) Before starting parts replacement, remove the AC cable and interface cable.

(a) Removing the AC cable

i) Turn off ("o") the power switch of the printer.

ii) Disconnect the AC inlet plug of the AC cable from the AC receptacle.

iii) Disconnect the AC cable and interface cable from the printer.

(b) Reconnecting the AC cable

i) Connect the AC cable and interface cable to the printer.

ii) Connect the AC inlet plug to the AC receptacle.

iii) Turn on ("I") the power switch of the printer.

Page: 25

(2)

Do not disassemble the printer, if operating normally.

(3)

Do not remove unnecessary parts: try to keep disassembly to a minimum.

(4)

Use specified service tools.

(5)

When disassembling, follow the determined sequence. Otherwise, parts may be damaged.

(6)

Since screws, collars and other small parts are likely to be lost, they should temporarily be attached to the original positions.

(7)

When handling ICs such as microprocessors, ROM and RAM, and circuit boards, follow standard electrostatic procedures.

(8)

Do not place printed circuit boards directly on the equipment or floor.

No. Service Tools Tools Qty Place of Use Remarks

6

7

8

1

2

3

4

5

No. 1-100 Philips screwdriver

No. 2-200 Philips screwdriver, Magnetized

No. 3-100 screwdriver

No. 5-200 screwdriver

Digital multimeter

Pliers

Handy cleaner

LED Head cleaner

P/N 51802901

1

1

1

1 2-2.5 mm screws

1 3-5 mm screws

1

1

1 Cleans LED head






Page: 26

Figure 3-1, Covers

Figure 3-2, Print Assemblies

Figure 3-3, Base Assemblies

Figure 3-4, Contact Assemblies



Page: 27



3.3 How to Change Parts

This section explains how to change parts and assemblies appearing in the disassembly diagram below.

3.3.1 Cover Assy Rear

3.3.2 Motor Fan (80-25)

3.3.3 Paper Eject Assy

3.3.4 Cover Assy Stacker Guide Eject FD Assy

3.3.5 Frame Assy Upper

3.3.6 Plate Support Assy

3.3.7 Limiter 2Way (L), (R) / Plate Guide (L), (R)

3.3.8 Cover

3.3.9 PCB Assy: PCR

3.3.10 Motor Fan (CU)

3.3.11 PXF PCB/PX4 PCB

3.3.12 Gear Heat Assy

3.3.13 Main Motor (A), (B) Assy

3.3.14 Gear On-way (Z30)

3.3.15 Motor Assy BT

3.3.16 Power Supply Unit, Holder Inlet, Sheet Insulation

3.3.17 Sensor Assy Box Toner

3.3.18 Square-shaped Connector

3.3.19 Hopping Motor

3.3.20 Gear One-Way

3.3.21 Feeder Unit Front

3.3.22 Manual Feed Hopper Assy

3.3.23 Guide Paper Input Assy

3.3.24 Lever Input Sensor

3.3.25 Roller Registration, Roller Assy Hopping

3.3.26 Roller Hopping

3.3.27 PXU PCB/PXM PCB, Lever Regist Sensor

3.3.28 Paper End Lever

3.3.29 PCO PCB (Operator Panel)

3.3.30 Holder Gear Toner Assy

3.3.31 Plate Latch Lever (FD), Spring Latch Lever (FD)

3.3.32 Belt Cassette Assy

3.3.33 High Voltage Power Supply Unit, Bracket HV

3.3.34 Erase Bracket Assy, Eraser Bracket

3.3.35 Shaft Link

3.3.36 Contact (BL-R) Assy, Contact (CL-R) Assy

3.3.37 Contact (BL-L) Assy, Contact (CL-L) Assy

3.3.38 Contact SB Assy

3.3.39 PXC PCB

3.3.40 Heat Unit Assy

3.3.41 Oil Roller Assy

3.3.42 Lever Lock Heat (L) / (R), Guide Side Heat, Spring Lock

3.3.43 PXL PCB

3.3.44 Heat Unit Guide Assy

3.3.45 Holder LED Assy, LED Head



Page: 28



3.3.1 Cover Assy Rear

Remove the 2 screws (1) then lift the cover assy rear (2) a little bit, then remove the cover assy rear by releasing the two claws.

Figure 3.3.1 Cover Assy Rear

40315201 Cover Assy Rear - RSPL

Includes:

40098401 Cover Rear

40187501 Stacker Face-up

40187601 Support Stacker





3.3.2 Motor-Fan (80-25)

1.

Remove the cover assy rear (See 3.3.1)

2.

Remove the two screws (1).

3.

Detach the fan motor (2) from the guide with its right side lifted then draw the fan motor.

4.

Detach the cable (3) then remove the fan motor (3).

Page: 29

Figure 3.3.2 Fan Motor (80-25)

40255201 Fan Motor (80-25) RSPL





3.3.3 Paper Eject Assy

The paper eject assy includes the frame: eject assy and the guide: paper eject assy.

1.

Remove the cover assy rear (See 3.3.1)

2.

Open the top cover.

3.

Unscrew 4 screws (1) then remove the frame eject assy (2).

4.

Remove the guide paper eject assy (3) by releasing the lock of one claw.

Page: 30

Figure 3.3.3 Paper Eject Assy

40303501

40303401

Frame: Eject Assy

Guide: Paper Eject Assy

RSPL

RSPL





3.3.4 Cover Assy Stacker, Guide Eject FD Assy

1.

Remove the cover assy rear. (See 3.3.1)

2.

Release the cable from the cable clamp (1) by opening the clamp.

3.

Unscrew 8 screws (2) then remove the cover assy stacker (3).

4.

Unscrew 4 screws (4) then remove the guide eject FD assy (5).

Page: 31

Figure 3.3.4 Cover Assy Stacker, Guide Eject FD Assy

40314801 Cover: Assy Stacker RSPL

Includes:

40303601 Guide - Eject - FD - Assy RSPL

40449901 Cover - Sub - Assy - Stacker RSPL

Item 2 - 50318701 PP4083-5670P001 Screw RSPL





3.3.5 Upper Frame Assy

1.

Remove the cover assy rear. (See 3.3.1.)

2.

Remove the cover assy stacker. (See 3.3.4.)

3.

Remove the holder LED assy. (See 3.3.45.)

4.

Detach the cable from the cable clamp (1) by releasing its lock.

5.

Remove connections of 4 connector cables (2) and 4 cables (3).

6.

Unscrew 4 screws 4 then remove the PD6 PCB (5).

7.

Unscrew 2 screw 6 then remove Guide Holder (7) by releasing the clamp of the claw.

8.

Unscrew 4 screws 8 then remove the Upper Frame Assy (9).

Page: 32

Cable is pushed against sharp edge on hole down to LED head.

Figure 3.3.5 Upper Frame Assy

(9)

(7)

40410701

40187801

Frame - Upper Assembly

Guide Holder

RSPL

RSPL



Page: 33



3.3.6 Plate Support Assemblies

The plate support assemblies are provided right and left. The method of those replacements is the same.

1.

Remove the heat unit assy. (See 3.3.40)

2.


3.

Remove the cover assy stacker. (See 3.3.4)

4.

Remove the frame assy upper. (See 3.3.5)

5.

Detach the cable from the flat cable clip (1) by releasing the lock.

6.

Remove the 2 screws (2) then remove the plate support assy (3). Be careful not to lose the spring 4 which is removed with the plate support assy (3).)

Figure 3.3.6 Plate Support Assy

(3) A

(4) A

(1)

(36)

(46)

40449201

40218301

56636301

40449301

40197401

Plate - Support - (R) - Assy

Torsion Spring (B)

LP-6665-1 - Flat - Cable - Clip

Plate - Support - L - Assy

Torsion - Spring (A)

RSPL

RSPL

RSPL

RSPL

RSPL





3.3.7 Limiter 2way (L), (R) / Plate Guide (L), (R)

1.

Remove the plate support assy (L) and (R). (See 3.3.6)

2.

Unscrew 2 screws (1) then remove the limiter 2way (L) (2) and the plate guide (L) (3).

3.

Unscrew 2 screws (4) then remove limiter 2way (R) (5) and the plate guide (R) (6).

Page: 34

Figure 3.3.7 Limiter 2way (L), (R) / Plate guide (L) , (R)

40383701

40335001

40383801

40335101

Limiter - 2 way (L)

Plate-Guard (L)

Limiter - 2 way (R)

Plate - Guard (R)

RSPL

RSPL

RSPL

RSPL

8-3, Item 15

8-3, Item 17

8-3, Item 16

8-3, Item 18



Page: 35



3.3.8 Cover

Describes the method of removing the cover assy side (L)/(R), cover assy OP panel, cover front (L)/(R) and the cover rear (L).

1. Remove the cover assy rear. (See 3.3.1)

2. Remove the cover assy stacker. (See 3.3.4)

3. Remove the 2 screws (1) then remove the frame side (L) (2).

4. Remove the 2 screws (3) then release the lock of the claw with the cover assy side (R) (4) lifted a little bit, then remove the cover assy side (R).

5. Detach the operator panel cable (5) from the PCM PCB.

6. Open the FDR unit front in the arrow direction.

7. Remove the 2 screws (6) then remove the cover assy OP panel (7).

8. Remove the 2 screws (8), with the cover front (R) (9) pushed up, then release the lock of the claw, then remove the cover front (R).

9. Remove the 2 screws (10) then remove the cover front (L) (11).

10. Remove the 2 screws (12) then remove the cover rear (L) (13).

11. Pull off the film (15) glued on the cassette guide.

12. Release the engagement with the guide by lifting the cover assy side (L) (14), then remove the cover assy side (L).

Figure 3.3.8 Cover

(2)

(4)

40195601

40315001

(7) 40314901

(7) Includes:

40492601

40387201

(9)

56636205

40098301

(11) 40098201

(13) 40195701

(15) 40728701

(14)

Frame - Side (L)

Cover - Assy - Side (R)

Cover - Assy - Op - Panel

Cover - Sub - Assy. Op - Panel

PCO PCB

2381005P005 *1

Cover - Front (R)

Cover - Front (L)

Cover - Rear (L)

Foam - Seal (Cover)

Cover - Side (L)

RSPL

RSPL

RSPL

RSPL

RSPL

RSPL

RSPL

RSPL

RSPL

RSPL

8-1, # 16

8-1, # 6

8-1, # 10

8-1, #11

8-1, #18

8-1, #9

8-1, #12

8-1, #17

8-1, #24

8-1, #14

*1

*2 Includes

Cable: HCUS (1.25) -

6F-440-10S6(B) M1 (20624)

Cover - Side (R)

Frame - Side (R)

RSPL 8-1, #19



Page: 36



3.3.9 PCR PCB Assy

1.

Open the top cover.

2.

Remove the 2 screws (1) and release the lock of the claw by lifting the cover assy side (R) (2) a little bit, then remove the cover assy side (R).

3.

Remove the 2 screws (8) to remove the plate shield (CU) (9).

4.

Remove the 3 screws (3) to remove the plate sealed (4).

5.

Detach the operator panel cable (5) from the PCR PCB. PCR PCB requires ten (10) screws for removal.

6.

Remove the 7 screws (6) to remove the PCR PCB (7).

Figure 3.3.9 PCB Assy: PCM

(2) 40315001 Cover - Assy - Side (R)

Includes: Cover - Side (R)

Frame - Side (R)

(9) 40704901 Plate - Shield (CU)

(4) 40376901 Plate - Sealed

(7) 40604802 PCR - PCB

RSPL

RSPL

RSPL

RSPL

8-1, #6

8-5, #43

8-5, #16

8-5, #15



Page: 37



3.3.10 Motor Fan

1.

Open the top cover.

2.

Remove the cover assy side (R), frame side (L), cover assy OP panel and the cover front (R). (See 3.3.8)

3.

Unplug the cable (1) and unscrew 2 screws (2), 2 collars (4) and then remove the motor fan (3).

Figure 3.3.10 Motor Fan

(2)

(3)

54122925

40197101

PSW2W3-253 Screw

Motor, Fan

RSPL

RSPL

8-5, #18

8-5, #17



Page: 38



3.3.11 PXF PCB/PX4 PCB

Since the PXF PCB and PX4 PCB are connected with each other via the connector, remove them at the same time.

1. Remove the PCB assy : PCM. (See 3.3.9)

2. Unscrew 5 screws 1 then remove the cover CU2.

3. Unplug all the cables 5 connected to the PXF PCB 3 and PX4 PCB 4.

4. Unscrew 5 screws 6 then remove the PXF PCB3 and PX4 PCB4 at the same time.

Figure 3.3.11 PXF PCB/PXS PCB



Page: 39



3.3.12 Gear Heat Assy

1.

Remove the cover assy side (R), cover assy OP panel, cover front (R) and the cover rear (L). (See

3.3.8)

2.

Remove the cover CU then unplug all the cables connected to the PX4 PCB and unscrew 3 screws.

(See 3.3.11)

3.

Unplug all the cables connected to the PXF PCB then remove the PX4 PCB. (See 3.3.11) (Be

careful not to damage the connector when unplugging cables connected to the PXF PCB.)

4.


5.

Remove the guide paper eject assy. (See 3.3.3)

6.

Remove the motor fan (80-25). (See 3.3.2)

7.

Remove the 5 screws (1) and detach the cable (2) then remove the guide heat assy (3).

8.

Remove the 2 screws (4) then remove the motor (ID) (5).

Figure 3.3.12 Gear Heat Assy

Gear-Heat-Assy (3) 40310001

Includes:

40124101

40448901

(5) 40124101

Motor-Pulse (ID)

Gear - Heat - Mech Assy

Motor - Pulse (ID)

RSPL

RSPL

RSPL

RSPL

8-5, #1

8-5, #11

8-5, #40

8-5, #11



Page: 40



3.3.13 Main Motor (A), (B) Assy

1.

Remove the PXF PCB and PX4 PCB. (See 3.3.11)

2.

Remove the 4 screws (8) and remove 4 plate-Earth (9) and 4 lever Up/Dn 2 (1).

3.

Detach the all the cables (2) connected and unscrew 4 screws (3), then remove the main motor (A) assy (4).

4.

Detach the all the cables (5) connected and unscrew 3 screws (6), then remove the main motor (B) assy (7).

Figure 3.3.13 Main Motor (A), (B) Assy

(9) 40583901

(1) B 40664401

(4) 40309101

(7) 40309201

(1) A 40664501

Plate - Earth (LKR)

Lever - Up/Dn 2 (YMC)

Main - Motor (A) - Assy

Main - Motor (B) - Assy

Lever - Up/Dn 2 - (K)

RSPL

RSPL

RSPL

RSPL

RSPL

8-5, #42

8-5, #6

8-5, #3

8-5, #4

8-5, #41



Page: 41



3.3.14 Gear One-way (Z30)

Four gear one-ways (Z30) are provided but the method of those replacements is the same. Do not disassemble the gear one-ways (Z30) because they are assemblies which require adjustment.

1.

Remove the PCB assy : PCM. (See 3.3.9)

2.

Remove the cover CU. (See 3.3.11)

3.

Remove the 4 Plate-Earth and 4 lever Up/Dn 2. (See 3.3.13)

4.

Release the lock with the shaft by spreading the claw, then remove the gear one-way (Z30) (1).

[Notice for mounting]

Mount the gear one-way (Z30) by fitting it with the shaft link turned in the arrow direction.

40208101 Gear - One - Way - (Z30) RSPL 8-5, #5

Figure 3.3.14 Gear One-Way (Z30)



Page: 42



3.3.15 Motor Assy Belt

1.

Remove the main motor (B) assy. See (3.3.13)

2.

Unplug 2 cables (1) connected and unscrew 2 screws (2), then remove the motor assy belt (3).

Figure 3.3.15 Motor Assy Belt

Motor - Assy - Belt (3) 40392301

Includes

40124101

40135301

40450001

Motor - Pulse

Photo - Interrupter

Belt - Motor - Mech - Assy

RSPL

RSPL

RSPL

RSPL

8-5, #1

8-5, #11

8-5, #39

8-5, #37



Page: 43



3.3.16 Power Supply Unit, Holder Inlet, Sheet Insulation

1.

Remove the motor-fan (80-25). (See 3.3.2)

2.

Remove the frame side (L), the cover assy side (R) and the cover rear (L). (See 3.3.8)

3.

Detach the cable (1).

4.

Remove the holder inlet (3) by unscrewing 2 screws (2), then remove the power switch (4) and unplug the AC socket (5).

5.

Draw the power supply unit (7) by unscrewing 2 screws (6), then unplug the cable (8).

Figure 3.3.16 Power Supply Unit, Holder Inlet, Sheet Insulation

(7) 40018901 Power - Unit - ACDC - Switching 120V

40019001 Power - Unit - ACDC - Switching 230V

RSPL 8-2, # 5

Option RSPL 8-2, # 5



Page: 44



3.3.17 Sensor Assy Box Toner

1. Remove the power supper unit. (See 3.3.16)

2. Unscrew the screw (1) then remove the sensor assy box toner (2) together with the bracket 93).

3. Unscrew the screw (4) then remove the sensor assy box toner (2).

Figure 3.3.17 Sensor Assy Box Toner

(2) 40450401 Sensor - Assy - Box - Toner

(3) 40450201 Bracket - Switch

RSPL

RSPL

8-3, Item 5

8-3, Item 47



Page: 45



3.3.18 Square-shaped Connector

1.

Remove the power supply unit. (See 3.3.16) (Do not remove the power switch and AC socket from the holder inlet.)

2.

Unplug the cable (1).

3.

Remove cable (2), screw (5) and bracket (6) in order and then take off SW from bracket (6) to pull off square-shaped connector (4).

Figure 3.3.18 Square-shaped Connector

(3)

(6)

(4)

50318601 PB4043-4718

P001

40446501

40563101

Screw RSPL 8-3, #38

Interlock - SW - Cable - Assy RSPL 8-3, #53

Connection-Cord-Wire RSPL 8-3, #37



Page: 46



3.3.19 Motor - Pulse (ID)

1.

Remove the cover assy side (R), cover assy OP panel and the cover front (R). (See 3.3.8)

2.

Unscrew 2 screws (1) and unplug the cable (2), then remove the bracket hopping motor (3). (Be careful not to lose the gears (5), (6) and (7) which slip off at this time.)

3.

Unscrew 2 screws (8) then remove the hopping motor (3).

Figure 3.3.19 Motor - Pulse (ID)

(3B) 40124101 Motor - Pulse (ID)

(3A) 40175001 Bracket - Hopping - Motor

(5)

(6)

40143501

40143401

Gear - Feed (118/7)

Gear - Idle (92)

(7)

(2)

40164401 Gear - One Way - (Z48/74)

40171001 Cord - Wire - AMP8P AMP4PX2

(Y8D-240x270mm)

RSPL 8-5, 11

RSPL 8-5, #7

RSPL 8-5, #9

RSPL 8-5, #8

RSPL 8-5, #10

RSPL 8-5, #23



Page: 47



3.3.20 One-way Gears

1. Remove the bracket hopping motor. (See 3.3.19).

2. Remove the spacer (4) first and release the locks with the shaft by spreading the claws of the gear one-way 91), 92) and (3), then remove the gear one-ways.

Figure 3.3.20 Gear One-way

(4)

(1)

(2)

(3)

40686701 Space - Register - Gear

40164301 Gear - One - way (Z48)

40164501 Gear - One - way (Z48/48)

40250901 Gear - One - way (96)

RSPL 8-3, 67

RSPL 8-3, #31

RSPL 8-3, #30

RSPL 8-3, #29



Page: 48



3.3.21 Feeder Unit Front

1.

Remove the cover assy side (R), cover assy OP panel, cover front (R) and the cover front (L). (See

3.3.8.)

2.

Remove the cover CU. (See 3.3.11)

3.

Unplug the cable (1) and unscrew the screw (2), then remove the bracket FF shaft (3).

4.

Remove 2 E-rings (4) then remove the feeder unit front (5).

5.

Unscrew each 2 screws (6) then remove 2 bracket FF links (7).

Figure 3.3.21 Feeder Unit Front

(1)

(3)

(5)

40641801 Conn - Cord - Wire

40193601 Bracket - FF - Link

40311201 FDR - Unit - Front

Includes:

RSPL

RSPL

RSPL

8-2, #29

8-2, #7

8-2, #6

55700401 2PA4128-1076G001 Hopper - Manual - RSPL 8-2, #26

Feed (Assy)

(7)

40449001 FDR - Unit - Main - Assy

40193501 Plate: FF Link

RSPL 8-2, #27

RSPL 8-2, #7



Page: 49



3.3.22 Manual Feed Hopper Assy

1. Open the manual feed hopper assy.

2. Release the engagement between the holder and the link then remove the manual feed hopper assy.

(Be careful not to damage the holder.)

Figure 3.3.22 Manual Feed Hopper Assy



Page: 50



3.3.23 Guide Paper Input Assy

1.

Remove the cover assy OP panel, cover front (R) ad the cover front (L). (See 3.3.8.)

2.

Remove the feeder unit front. (See 3.3.21)

3.

Unscrew 4 screws (1) then draw out the guide paper input assy (2) from the left side by rotating its upper part. (Be careful not to damage the lever sensor resist).

Figure 3.3.23 Guide Paper Input Assy

(2) 40303301 Guide - Paper - Input - assy

Includes:

40097301 Guide - Paper - Input - A

40144301 Lever - Input - Sensor

40144401 Lever - 2nd - Feed - Sensor

RSPL 8-3, #24

RSPL 8-3, #43

RSPL 8-3, #44

RSPL 8-3, #45



Page: 51



3.3.24 Two Lever Input Sensors, Lever 2nd Feed Sensor

1.

Remove the guide paper input assy. (See 3.3.23.)

2.

Release the engagement with the guide (3) by pressing the lever input sensors (1) in the arrow direction, then remove them.

3.

Release the engagement with the guide by pressing the lever 2nd feed sensor (2) in the arrow direction, then remove the sensor.

Figure 3.3.24 Two Lever Input Sensors, Lever 2nd Feed Sensor

40303301

Includes:

Guide - Paper - Input - Assy RSPL 8-3, #24

(3)

(1)

(2)

40097301 Guide - Paper - Input A

40144301 Lever - Input - Sensor

40144401 Lever - 2nd - Feed - Sensor

RSPL 8-3, #43

RSPL 8-3, #44

RSPL 8-3, #45



Page: 52



3.3.25 Roller Registration, Roller Assy Hopping

1.


2.

Remove the bracket hopping motor. (See 3.3.19)

3.

Remove the gear one-way. (See 3.3.20)

4.

Remove the holder gear toner assy. (See 3.3.30)

[Removal of the roller registration]

5. Remove the gear (1) and 2 bushes (2) and 2 bearings (3), then 2 roller registrations (4).

[Removal of the roller assy hopping]

6. Remove the bush (5) and the bearing (6).

7. Remove E-rings (9) of the sub-roller hopping at both sides of hopping roller and then release the lock of the roller hopping (7) with the shaft (8) by spreading the claw, then remove the roller hopping from the left side by the sliding shaft (8) in the arrow direction. (Be careful not to lose the knock-pin for

fastening the roller hopping (7), which slisp off together.)

Figure 3.3.25 Roller Registration, Roller Assy Hopping

(7)

(8)

40310601 Roller - Assy - Hopping

Includes:

40449701

40189601

Hopping - Roller - Boss - Assy

Shaft - Hopping - Roller - 1st

50608118 NK3-18-SUS Knock-Pin

(10) 40743701 Roller - Assy - Hopping (Sub)

(4) 40130801 Roller - Registration

RSPL 8-3, #23

RSPL 8-3, #42

RSPL 8-3, #46

RSPL 8-3, #50

RSPL 8-3, #66

RSPL 8-3, #22



Page: 53



3.3.26 Hopping Roller Assy

1.

Remove the roller assy hopping. (See 3.3.25) and remove the 2 sub-roller hopping guide (3). (Be careful not to lose the knock-pin which clips off together when removing the roller assy hopping.

2.

Detach the roller hopping (2) from the shaft (1).

(2)

(1)

(4)

(3)

Figure 3.3.26 Hopping Roller Assy

40310601 Roller - Assy - Hopping

Includes:

40449701 Hoping - Roller - Boss - Assy

40189601 Shaft - Hopping - Roller - (1st)

50608118 NK3-18-SUS Knock-Pin

40743701 Roller Assy Hopping Sub

RSPL 8-3, #23

RSPL 8-3, #42

RSPL 8-3, #46

RSPL 8-3, #50

RSPL



Page: 54



3.3.27 PXU PCB/PXM PCB, Lever Resist Sensor

Since the PXU PCB and PXM PCB are connected with each other via the cable, remove them at the same time.

1. Remove the guide paper input assy. (See 3.3.23)

2. Unscrew 4 screws 1 and unplug the cable 2, then remove the PXU PCB 3 and PXM PCB 4 at the same time.

3. Remove the lever resist sensor 5 by releasing the engagement with the guide.

Figure 3.3.27 PXU PCB/PXM PCB, Lever Resist Sensor





3.3.28 Paper End Lever

1.


2.

Remove the paper end lever (1) by releasing the engagement with the guide.

Page: 55

Figure 3.3.28 Paper End Lever

50808201 4PP4076-5154P001 Lever: Paper End RSPL 8-3, #4



Page: 56



3.3.29 PCO PCB (Operator Panel)

1.

Remove the cover assy side (R), and the cover assy OP panel. (See 3.3.8.)

2.

Unscrew 4 screws (1) and unplug the operator panel cable (2).

3.

Remove the PCO PCB (3) by releasing 6 claws. (Be careful not to drop the LCD (Liquid Crystal

Display) (4) and (5) which are detached together).

Figure 3.3.29 PCO PCB (Operator Panel)

(2) 56636205 2381005P0005 Cable: HCUN (1.25)-6F-440-1056

(B)-M1 (20624)

RSPL 8-1, #19

(3)

(6)

40387201

40492601

40314901

PCO PCB

Cover - Sub - Assy - Op - Panel

Cover - Assy - Op - Panel

(Includes 3 & 6)

RSPL 8-1, #18

RSPL 8-1, #11

RSPL 8-1, #10



Page: 57



3.3.30 Holder Gear Toner Assy

1.


3.3.8.)

2.

Unplug the cable (1) and unscrew the screw (2), then remove the holder gear toner assy (3).

Figure 3.3.30 Holder Gear Toner Assy

(3) 40309801 Holder - Gear - Toner - Assy RSPL 8-2, #10



Page: 58



3.3.31 Plate Latch Lever (FD), Spring Latch Lever (FD)

1.


3.3.8.)

2.

Open the cover CU. (See 3.3.11)

3.

Unplug the cable (1).

4.

Unscrew the screw (2) then remove the bracket SW (side) (3).

5.

Unscrew 4 screws (4) then remove the stay upper (front) (5).

6.

Remove the plate latch lever (FD) (6) and spring latch lever (FD) (7) with the side frames spread. (Be

careful not to spread the frames too much).

Figure 3.3.31 Plate Latch Lever (FD), Spring Latch Lever (FD)

(3)

(5)

(6)

(7)

40388501

40171101

40195101

40195001

Bracket - SW

Stay - Upper - (Front)

Plate - Latch - Lever (FD)

Spring - Latch - Lever (FD)

RSPL 8-3, #33

RSPL 8-3, #32

RSPL 8-3, #34

RSPL 8-3, #35





3.3.32 Transfer Belt

1.

Open the Top cover.

2.

Release the lock by drawing the cover knob then open the cover assy side (L).

3.

Turn the waste toner box (box toner assy) (1) to the left by pressing it down, then remove it.

4.

Draw out the belt cassette assy (2) by lifting it a little bit with its handle.

Page: 59

Figure 3.3.32 Transfer Belt

(1)

(2)

Cover - Knob

Cover - Side (L)

40645401 Waste - Toner - Bottle - Kit

(Consumable)

40490802 Transfer Belt (Consumable)

8-1, #15

8-1, #14

8-2, #30

8-2, #11





3.3.33 High Voltage Power Supply Unit, Bracket HV (BT) Assy

1.

Remove the belt cassette assy. (See 3.3.32)

2.

Unscrew 2 screws (1) with the stacker cover opened, then remove the plate HV (2).

3.

Unplug the cable (3) and 7 codes (4).

4.

Unscrew 2 screws (5) then remove the high voltage power supply unit (6).

5.

Remove the bracket HV (BT) Assy (7).

Page: 60

Figure 3.3.33 High Voltage Power Supply Unit, Bracket HV (BT) Assy

(2) 40168001 Plate - HV RSPL 8-2, #15

(6)

(7)

40065601 High - Voltage - Power - Supply

40325001 Bracket - HV - (BT) - Assy

RSPL 8-2, #13

RSPL 8-2, #14



Page: 61



3.3.34 Eraser Bracket Assy, Eraser Bracket (KCM) Assy

1.

Remove the belt cassette assy. (See 3.3.32).

2.

Open the stacker cover.

3.

Remove four screws (5) and then remove the Plate Blind (6).

[Removing the eraser bracket assy]

4. Remove the screw (1) and the connector (2).

5. Release the screw (7) and then remove the eraser bracket assy (3).

[Removing the eraser bracket (KCM) assy]

6. Remove the screw (1) and the connector (2).

7. Release the lock of the claw then release the engagement with the bracket sensor T (KCM). (See

3.3.35).

8. Release the screw (7) and then remove the eraser bracket (KCM) assy (4) and unplug the cable (2) then remove the eraser bracket (KCM) assy.

Figure 3.3.34 Eraser Bracket Assy, Eraser Bracket (KCM) Assy

(2)

(3)

(4)

40172710 Cord - Wire - AMP8P-AMP2PX4

40308501 Eraser - Bkt - Assy

40324301 Eraser - Bkt - (KCM) - Assy

RSPL 8-4, #20

RSPL 8-4, #8

RSPL 8-4, #9



Page: 62



3.3.35 Shaft Link

1.

Remove the eraser bracket assy. (See 3.3.34)

2.

Remove the gear one-way (Z30). (See 3.3.14.)

3.

Remove the E-ring (3) by sliding the sensor assy T (KCM) (1) and bracket sensor T (KCM) (2) together in the arrow (A) direction.

4.

Release the engagement between the lever Up/Dn and boss A of the lever link (R) (5) by sliding the spring support (R) (4), lever link (R) (5) and the bearing (6) together in the arrow (B) direction. (Keep

on sliding until the lever link (R) (5) reaches the end of D-cut part of the shaft link (7).)

5.

Draw out the entire shaft link (7) by pressing it in the arrow (C) direction and turning its left side under the contact (BL L) assy.

6.

Detach the sensor assy T (KCM) (1), bracket sensor T (KCM) (2), spring support (R) (4), lever link

(R) (5) and the bearing (6) from the shaft link (7).

7.

Remove 2 E-rings (8) then remove the spring support (L) (9) and lever link (L) (10).

[Notice for mounting]

z Engagement between the lever Up/Dn and boss A of the lever link (R) (5): Mount the spring support

(L (9) and lever link (L (10) in the predetermined positions, then clamp the boss A of lever link (R) (5) with the lever Up/Dn by adding rotating power on the spring support (L) (9) by rotating the shaft link

(7).

z Mounting of the spring support (R) (4): Clamp the spring support (R) (4) at the predetermined positions in the lever link (R) (5) and the contact BKT (R).

Figure 3.3.35 Shaft Link

(3)

(1)

(2)

(5)

(4)

50705301

40449501

40136201

40132301

40168401

RE6-SUS Ring: "E"

Sensor - Assy - T - (KCM)

Bracket - Sensor - Toner - (KCM)

Lever - Link - (R)

Spring - Support (R)

RSPL 8-4, #13

RSPL 8-4, #19

RSPL 8-4, #16

RSPL 8-4, #11

RSPL 8-4, #14





3.3.36 Contact Bracket (BL-R) Assy, Contact Bracket (CL-R) Assy

1.

Remove the gear one-way (Z30). (See 3.3.14)

2.

Remove the motor assy BT. (See 3.3.15)

3.

Remove the high voltage power supply unit. (See 3.3.33)

4.

Remove the shaft link. (See 3.3.35)

[Removal of the contact (BL-R) Assy]

5. Unscrew 2 screws (1) and unplug the cable (2), then rmeove the contact (BL-R) assy (3).

[Removal of the contact (CL-R) Assy]

6. Unscrew 2 screws (4) then remove the contact (CL-R) Assy (5).

Page: 63

Figure 3.3.36 Contact Bracket (BL-R) Assy, Contact Bracket (CL-R) Assy

(2)

(5)

40173301

40309001

Cord - Wire - : Amp 14p-1MPX43

Contact - BK - T (CL-R) Assy

Includes:

40135301 Photo Interrupter

RSPL

RSPL

RSPL

8-4, #18

8-4, #7

8-4, #6





3.3.37 Contact (BL-L) Assy, Contact (CL-L) Assy

1.

Remove the shaft link. (See 3.3.35)

[Removal of the contact (BL-L) assy]

2. Unscrew 2 screws (1) then remove the contact (BL-L) Assy (2).

[Removal of the contact (CL-L) assy]

3. Unscrew 2 screws 93) then remove the contact (CL-L) assy (4).

Page: 64

Figure 3.3.37 Contact (BL-L) Assy, Contact (CL-L) Assy

(2)

(A)

(A)

(4)

40324501 Contact - (BL-L) Assy

Includes:

40278101 Plate - Earth (LK)

51608901 PP4076-5308P001 Bearing: F

40324401 Contact (CL-L) Assy

Includes: (A) Both Parts

RSPL 8-4, #1

RSPL 8-4, #2

RSPL 8-4, #3

8-4, #4





3.3.38 Contact SB Assy

1.

Remove the contact (BL-L) assy and contact (CL-L) assy. (See 3.3.37)

2.

Unscrew 3 screws (1) then remove the plate blind (2).

3.

Unplug 7 codes (3).

4.

Unscrew 3 screws (4) then remove the contact SB assy (5).

Page: 65

Figure 3.3.38 Contact SB Assy

(2)

(5)

40290201

40308801

Plate - Blind

Contact - SB - Assy

RSPL 8-3, #9

RSPL 8-3, #8





3.3.39 PXC PCB

1.

Remove the contact (BL-R) assy and contact (CL-R) assy. (See 3.3.36)

2.

Remove the contact (BL-L) assy and contact (CL-L) assy. (See 3.3.37)

3.

Remove the hopping motor. (See 3.3.19)

4.

Remove the motor assy BT. (See 3.3.15)

5.

Remove the gear heat assy. (See 3.3.12)

6.

Remove the roller assy hopping. (See 3.3.25)

7.

Remove the holder gear toner assy. (See 3.3.30)

8.

Remove the high voltage power supply unit. (See 3.3.33)

9.

Unplug the inlet AC. (See 3.3.16)

10.

Unscrew 9 screws (1) then remove the guide cassettes (L) (2) and (R) (3) together.

11.

Unscrew the screw (4) then remove the switch (5).

12.

Unscrew the screw (6) then remove the PXC PCB (7).

Page: 66

Figure 3.3.39 PXC PCB

(2)

(3)

(5)

(7)

40302101

40302901

Guide - Cassette - (L) - Assy

Guide - Cassette - (R) - Assy

RSPL 8-3, #60 *

RSPL 8-3, #61*; 8-7, #1

50928901 4PP4076-5306P001 Spring: Detector RSPL 8-7, #2

40368301 PXC - PCB RSPL 8-7, #5



Page: 67



3.3.40 Heat Unit Assy (Fuser unit and oil roller)

1.

Open the stacker cover.

2.

Release the lock by turning down the lever lock heat guides (blue) on both sides, then lift the fuser unit assy (1) and remove it.

Figure 3.3.40 Heat Unit Assy

(1) 40490901 Unit: Fuser 120V (OP8c)

40490904 Unit: Fuser 220V (OP8c)

RSPL 8-2, #21

RSPL 8-2, #21



Page: 68



3.3.41 Oil Roller Kit

1.


2.

Release the lock by turning down the lever in the arrow (A) direction, then slide the oil roller assy (1) with its right side lifted and remove it.

Figure 3.3.41 Oil Roller Kit

(1) 40645301 Oil Roller Kit (Consumable) 8-2, #12



Page: 69



3.3.42 Lever Lock Heat (L)/(R), Guide Side Heat, Spring Lock

Removing methods for right side and left side of each part are the same. Here describes the method for right side.

1.


2.

Unscrew 2 screws (1) then remove the guide side heat (2).

3.

Remove the E-ring (3) then lever lock heat (R) (4). (Be careful not to lose the spring lock 5 which

slips off together.)

Figure 3.3.42 Lever Lock Heat (L)/(R), Guide Side Heat, Spring Lock

(2)

(4)

(5)

40163401

40163601

Guide - Side - Heat - Unit

Lever - Lock - Heat - Unit - (R)

40163501 Lever - Lock - Heat - Unit - (L)

40163702 Spring - Lock - Heat (R)

40163701 Spring - Lock - Heat (L)

RSPL

RSPL

RSPL

RSPL

RSPL

8-3, #10

8-3, #14

8-3, #13

8-3, #12

8-3, #11





3.3.43 PXL PCB

1.

Remove the paper eject assy. (See 3.3.3)

2.


3.


4.

Unplug the cable (1) and the screw (2), then remove the PXL PCB (3).

5.

Release the lock of the claw then remove the sensor cover (4).

Page: 70

Figure 3.3.43 PXL PCB

(1)

(3)

(4)

40171801 Cord Wire - AMP7P-AMP7P (White

300 mm)

40437501 PXL-PCB

40162201 Cover - Sensor

RSPL 8-3, #57

RSPL 8-3, #56

RSPL 8-3, #54





3.3.44 Heat Unit Guide Assy

1.


2.

Remove the paper eject assy. (See 3.3.3)

3.

Remove the gear heat assy. (See 3.3.12)

4.


5.

Open the stacker cover and remove the heat unit assy. (See 3.3.40)

6.

Unscrew 4 screws (1) then remove the heat unit guide assy (2).

Page: 71

Figure 3.3.44 Heat Unit Guide Assy

(2) 40162101 Guide - Assy - Heat - Unit

Includes:

40449401 Guide - Assy - Heat

40264401 Spring - Eject - Heat

40162201 Cover - Sensor

40437501 PXL - PCB

RSPL 8-3, #39

RSPL 8-3, #41

RSPL 8-3, #49

RSPL 8-3, #54

RSPL 8-3, #56



Page: 72



3.3.45 Holder LED Assy, LED Head

1. Unplug the cable 1.

2. Remove the LED head 3 by spreading the holder LED assy 2 a little bit. (Be careful not to lose the spring 4 which slips off together.)

3. Remove the holder LED assy 2 by spreading the A-part of the guide holder a little bit with a flat blade screwdriver.

(Be careful not to lose the spring 5 which slips off together.)

Figure 3.3.45 Holder LED Assy, LED Head



Page: 73


Chapter 4 Adjustments

4. Adjustments

Adjustments are carried out by key operations on the operator panel, by software operation panel, and by

EEPROM of PU (PXS-PCB) setting.

This page printer supports three maintenance modes. Select and enter a maintenance mode fit for the adjustment.

4.1 Maintenance Modes and Their Functions

4.2 Adjustments after Parts Replacement



Page: 74

4.1 Maintenance Modes and Their Functions

4.1.1 User maintenance mode

4.1.2 System maintenance mode

4.1.3 Engine maintenance mode





Page: 75



4.1.1 User maintenance mode

To enter the user maintenance mode, press and hold the MENU key while powering on the printer.

z Functions z z z z z z z

Menu reset

Drum counter reset

(YELLOW, MAGENTA, CYAN, BLACK)

Belt count reset

Resource save area

Operator panel menu disable

SETTING z z z z z z z

Hex dump

FUSER COUNT RESET

Oil roller count reset

Receive buffer size

X adjust

Darkness

(YELLOW, MAGENTA, CYAN, BLACK)

Color Reg Adjust Execute

(a) Menu reset

1.

2.

Resets all Menu Level 1 settings to the default settings (which have been factory-set).

Resets all executable Emulation menu items (including options) to factory-set default emulation items.

(b)

Hex dump

1.

2.

3.

Receives data from the host computer and dumps it in a hexadecimal format.

When one or more page of data come from the host, printing automatically starts.

To print out data of less than one page, press the ONLINE key to set the offline state and press the EJECT key. Printing starts.

To exit this mode, shut off power to the page printer. This is the only way to exit this mode.

(c) Drum counter reset (for yellow, magenta, cyan and black)

1.

2.

Used to reset the drum life after the image drum is replaced.

After drum-counter resetting is made, the page printer does not enter the operation mode automatically.

(d) Fuser count reset

Resets the fuser life counter the fuser unit is replaced.

(e) Belt count reset

Resets the belt life counter the belt unit is replaced.

(f) Oil roller count reset

Resets the oil roller life counter after the oil roller unit is replaced.

(g) Resource save area

Sets the resource saving area. This menu item appears when the option PS SIMM and

RAM increases. The selectable size will also increase. When adding RAM over

24Mbytes, the selection can be made up to 22.5Mbytes. The size upon auto will also increase if the size of the add-on RAM increases.

(h) Receive buffer

Sets the receive buffer. The data transmission time from the upper command will decrease when set to a high value, but memory overflow is more likely to occur. Memory will be restructured with this change, and the contents of all download fonts, PCL macro, and PostScript will be lost.

(i) Operator panel menu disable

Enables or disables the menu functions (Menu1, Menu2, Tray Type, Power Save, and

Paper Size) of the operator panel.

(j) X adjust

1.

2.

Corrects the position of the whole print image so that it may be perpendicular to the movement of paper (at intervals of 0.25mm).

The print image exceeding the specified printable area is clipped.

(k) Y adjust

1.

2.

Corrects the position of the whole print image so that it parallels the movement of paper (at intervals of 0.25mm).

The print image exceeding the specified printable area is clipped.

(l) Darkness (Yellow, Magenta, Cyan and Black)

Sets the printout density of each color.

(m) SETTING

Used for fine adjustments when the operational environment, of the use of special paper, etc may produce a prominent blur and dispersion on the printed output. Executes a Print Quality correction for continuous use of special environment and media. When scattered printing or snow flake-like printing is output, it should be decremented. When the printing becomes scratchy, it should be incremented. Press the ENTER key to write the setting to the EEPROM.

(n) Color Register Adjust Execute

Sets values for correcting X-axis, diagonal, and Y-axis deviations of the LED heads

(yellow, magenta, and cyan) relative to black. The tandem-type page printer is equipped with an array of image drum (I/D) units which cannot be free from generation of color deviations. The color deviations are main scanning, sub-scanning, and diagonal deviations. These mechanically-caused color deviations are corrected electronically.

Category

MENU

RESET

HEX DUMP

YELLOW DRMCNT

RESET

MAGENTA DRMCNT

RESET

CYAN DRMCNT

RESET

BLACK DRMCNT

RESET

FUSER COUNT

RESET

BELT COUNT RESET

OIL ROLLER COUNT

RESET

User maintenance mode menu system

Selection DF After pressing

[ENTER] key

MENU

RESETTING

ON-LINE

HEX DUMP

YELLOW DRMCNT

RESETTING

MAGENTA DRMCNT

RESETTING

CYAN DRMCNT

RESETTING

BLACK DRMCNT

RESETTING

FUSER COUNT

RESETTING

BELT COUNT

RESETTING

OIL ROLLER COUNT

RESETTING

After completing the process

MENU

RESET

YELLOW DRMCNT

RESET

MAGENTA DRMCNT

RESET

CYAN DRMCNT

RESET

BLACK DRMCNT

RESET

FUSER COUNT

RESET

BELT COUNT RESET

OIL ROLLER COUNT

RESET

RESOURCE SAVE

RECEIVE BUFFER

OP MENU

X ADJUST

Y ADJUST

YELLOW DARKNESS 0

+1

+2

-2

-1

MAGENTA

DARKNESS

0

+1

+2

-2

-1

CYAN DARKNESS 0

+1

+2

-2

-1

0 mm

+0.25 mm

+0.50 mm

~

+2.00 mm

-2.00 mm

1.75 mm

~

-0.25 mm

0 mm

+0.25 mm

+0.50 mm

~

+2.00 mm

-2.00 mm

-1.75 mm

~

-0.25 mm

AUTO

OFF

400KB

900KB

1.6MB

2.5MB

z z z

19.6MB

22.5MB

AUTO

OFF

8KB

20KB

50KB

100KB

1MB

ENABLE

DISABLE

*

*

*

*

*

*

*

*

SETTING EEPROM

SETTING EEPROM

SETTING EEPROM

SETTING EEPROM

SETTING EEPROM

SETTING EEPROM

BLACK DARKNESS 0

+1

+2

-2

-1

SETTING 0

+1

+2

-2

-1

COLOR REG ADJUST

EXECUTE

Refer to Section

4.2.2 color deviation correction

*

*

SETTING EEPROM



Page: 76



4.1.2 System maintenance mode

To enter the system maintenance mode, press and hold the RECOVER key while powering on the printer.

Note: The system maintenance mode is hidden and not available to the user.

To exit this mode, press the ONLINE switch except during rolling ASCII continuous printing. Then the

RUN mode is set.

In the system maintenance mode, the category changes each time the MENU switch is pressed. The last category wraps around to the first category. The system maintenance mode supports the following functions: z z z z

Page count display

Rolling ASCII continuous printing

HSP ERROR recovery

HSP ERROR count reset

(1) Page count display z z z

Page count printing enable/disable

EEPROM reset

HSP ERROR count display z The total number of pages counted at the engine is displayed on the operator panel.

(2) Page count printing enable/disable z This function selects whether to include (enable) or exclude (disable) the total number of printed pages counted at the engine at the time of menu printing.

(3) Rolling ASCII continuous printing z z

The rolling ASCII pattern is printed continuously for various engine tests.

Press the ON-LINE key to cancel this mode.

(4) EEPROM reset z z

All EEPROM areas (including Menu level-2) to the factory default values.

The following items are excluded

Head drive time setting

ENGINE Maintenance Item

Revision (Including Destination setting)

(5) HSP ERROR recovery

z

Select HSP ERROR recovery function either recover or stop.

z

(6) HSP ERROR count

Display total HSP ERROR count.

z

(7) HSP ERROR count reset

Reset the HSP ERROR counter.

Category

PAGE CNT nnnnnn

PAGE PRT

CONT PRT

System Maintenance mode menu system


[ENTER] key


DISABLE

ENABLE

*

EEPROM RESET

HSPERR

HSPERR

CNT nn

HSPERR

CNT RST

RECOVER STOP *

CONT PRT

PRINTING

EEPROM RESETTING

SETTING EEPROM

CONT PRT

CANCELLED

(Press the ONLINE button).

HSPERR

RESETTING

HSPERR

CNT RST



Page: 77



4.1.3 Engine maintenance mode

To enter the engine maintenance mode, pres and hold the ENTER and FORM FEED keys while powering on the printer. ENG MNT is displayed on the operator panel.

Note: The engine maintenance mode is hidden and not available to the user.

To exit this mode, press the ONLINE switch. The operation mode is entered. The engine maintenance mode supports the following functions: z z z z z z z z z z

Head drive time setting (YELLOW, MAGENTA, CYAN, BLACK)

Drum count display (YELLOW, MAGENTA, CYAN, BLACK)

Total drum count display (YELLOW, MAGENTA, CYAN, BLACK)

Fuser count display

Belt count display

Oil roller count display

Setting of standard tray paper feed length

Setting of second tray paper feed length

Setting of front feeder paper feed length

Engine reset

(1) Head drive time setting (Yellow, Magenta, Cyan, and Black)

Sets the time of driving each LED head.

(2) Drum count display (Yellow, Magenta, Cyan, and Black)

Displays the number of revolutions of each image drum counted by the engine on the LCD.

(3) Total drum count display (Yellow, Magenta, Cyan, Black)

Displays the total number of rotations at each color.

(4) Fuser count display

Displays the total number of pages handled by the Fuser which have been counted by the engine.

(5) Belt count display

Displays the total number of pages handled by the Belt which have been counted by the engine.

(6) Oil roller count display

Displays the counter of the oil roller.

(7) T1 position (Setting of standard tray paper feed length)

Sets a value for correcting the amount of paper feeding of the standard tray.

(8) T2 position (Setting of second tray paper feed length)

Sets a value for correcting the amount of paper feeding of the second tray.

z

(9) Engine reset

Resets the contents of all EEPROM areas used by the engine with default values.

z z z z z z

Does not reset the following items:

LED head drive time

Menu level 1

Menu level 2

Operator Panel Menu Disable/Enable

Page Print Disable/Enable

Engine Maintenance mode menu system (1/2)

Category Selection

YELLOW LED HEAD No. 1

No. 2

-

No. 16

-

No. 17

No. 32

MAGENTA LED HEAD No. 1

No. 2

-

No. 16

-

No. 17

No. 32

CYAN LED HEAD No. 1

No. 2

-

No. 16

-

No. 17

No. 32

BLACK LED HEAD No. 1

No. 2

-

No. 16

-

No. 17

No. 32

DF After pressing

[ENTER] key

SETTING EEPROM

SETTING EEPROM

SETTING EEPROM

SETTING EEPROM


Category

Engine Maintenance mode menu system (2/2)


[ENTER] key


YELLOW DRMCNT nnnn

Yellow DRMCNT

T nnnnnnn

MAGENTA DRMCNT nnnn

Magenta DRMCNT

T nnnnnnn

CYAN DRMCNT nnnn

Cyan DRMCNT

T nnnnnnn

BLACK DRMCNT nnnn

Black DRMCNT

T nnnnnnn

FUSER COUNT nnnn

BELT COUNT nnnn

Oil Roller Count nnnnnnn

T1 POSITION

T2 POSITION

FF POSITION

0 mm

+1 mm

~

+7 mm

-8 mm

~

-1 mm

0 mm

+1 mm

~

+7 mm

-8 mm

~

-1 mm

0 mm

+1 mm

~

+7 mm

-8 mm

~

-1 mm

ENGINE

REST

*

*

*

SETTING EEPROM

SETTING EEPROM

SETTING EEPROM

ENGINE RESETTING ENGINE

RESET



Page: 78



4.2 Adjustments after Parts Replacement

Adjustments required after parts replacement are listed below.

Adjustment and correction of color deviations are always required after parts are replaced.

Part replaced

LED head

Drum cartridge (Y, M, C, B, and K)

Fuser Unit

Transfer Belt

EEPROM (PU block)

Oil Roller

Other parts

Adjustment required

Set the LED head driving time and correct color deviations.

Reset the drum counter and correct color deviations.

Reset the fuser counter and correct color deviations.

Reset the belt counter and correct color deviations.

Set the LED head driving time and correct color deviations.

Reset the oil roller counter.

Correct color deviations (if any).

4.2.1 Confirm the LED head driving time

4.2.2 Color Registration Adjustment



Page: 79



4.2.1 Confirm the LED head driving time

Note: When a new LED HEAD is installed, the printer, reads the contents of the EEPROM within the LED

HEAD, automatically re-setting the drive time. Therefore, the re-setting of drive time is not necessary. A confirmation of the drive time re-reset is necessary.

z Display of illumination level of the LED head

Parameter value

(displayed on LCD)

1

2

5

6

3

4

7

8

9

10

11

12

13

Illumination level of

LED head

155

145 - 154

136 - 144

127 - 135

119 - 126

111 - 118

104 - 110

97 - 103

91 - 96

85 - 90

80 - 84

74 - 79

70 - 73

Parameter value

(displayed on LCD)

17

18

19

20

21

22

23

24

25

26

27

28

29

Illumination level of LED head

53 - 57

50 - 52

47 - 49

44 - 46

41 - 43

38 - 40

36 - 37

33 - 35

31 - 32

29 - 30

27 - 28

26 - 26

25 - 25

14

15

16

65 - 69

61 - 64

58 - 60

30

31

32

22 - 24

21 - 21

20



Page: 80



4.2.2 Color Registration Using the Operator Panel (Color deviation correction)

After replacing a part of the page printer, be sure to check whether colors are matched. If not, correct the deviations.

- Method of correcting color deviations

(a) Set the User Maintenance mode, select the Color Deviation Correction mode (COLOR REG ADJUST

EXECUTE), and print out a color chart (PRINT PATTERN). In this mode, the page printer cannot receive any data from the host computer.

(b) Watch the printed color and check color deviations (#1 to #3 for yellow, #4 to #6 for magenta, and #7 to #9 for cyan).

(c) After a color chart is printed out, the menu shows the ADJUST #1 mode for entering a correction value for the left (#1) yellow chart.

(d) Enter correction values for #1 (left yellow chart), #2 (middle yellow chart) and #3 (right yellow chart).

Similarly enter correction values for #4 to #6 for left, middle, and center magenta charts and for #7 to #9 for left, middle, and center cyan charts.

(e) After entering all correction values, print out a new color chart (by PRINT EXECUTE), and check color deviation.

(f) Repeat the above steps until all colors match.

(g) Press the ONLINE switch to exit the color correction mode (by EXIT). Initialize the page printer and enter the operation mode.

The menus for correction of color deviations are as follows:

Color Check pattern



Page: 81


Chapter 5 Maintenance

Preventive Maintenance

5.1 Periodically Replaced Parts

5.2 Cleaning

5.3 Cleaning the LED Lens Array

5.4 Cleaning the Pickup Roller



Page: 82



5.1 Periodically Replaced Parts

The parts listed below should be replaced periodically. If the parts are not replaced, output quality may be poor, in extreme cases, the printer may malfunction

Parts Name

Toner Cartridge

Image Drum

Oil Roller Assy

Waste toner bottle

Fuser Unit

Transfer Belt

Display of warning condition

When the "TONER

LOW" message is displayed

Recommend condition for replacement

When 1,800 pages are printed out (5% prunt density) (without the first cartridge)

Adjustment after replacement

Replace Toner

Cartridge

When 12,000 pages are Reset the drum counter printed out of the replaced drum

When the "CHG

DRUM" message is displayed

When the "OIL

ROLLER LIFE" message is displayed

When the "WASTE

TONER FULL" message is displayed

When the "FUSER

LIFE" message is displayed

When the "BELT LIFE" message is displayed

When 10,000 pages are printed out

Replace Holder Assy

Oil Roller

When 25,000 pages are Replace Waste Toner printed out (single images of 5% print

Bottle and Oil Roller density)

When 60,000 pages are printed out

Reset the fuser counter

When 50,000 pages are Reset the belt counter printed out

The above parts may be replaced by the user.



Page: 83



5.2 Cleaning

Periodically clean the inside and outside of the page printer with a soft cloth and small vacuum cleaner.

The vacuum cleaner must have a toner-safe filter.

Caution: Do not touch the terminals of the image drums, the LED lens array, or the LED head connector block.



Page: 84



5.4 Cleaning the Pickup Roller

When horizontal lines appear on output, clean the Pick up Roller.

Note: Clean it up with a soft cloth so that the surface is not scratched.



Page: 85


Chapter 6 Troubleshooting Procedures

6.0 Troubleshooting Procedures

6.1 Troubleshooting Tips

6.2 Points to Check before Correcting Image Problems

6.3 Tips for Correcting Image Problems

6.4 Preparation for Troubleshooting

6.5 Troubleshooting Charts



Page: 86



6.1 Troubleshooting Tips

1.

Check the basic check points covered in the user's manual.

2.

Gather as much information on the problem from the customer as possible.

3.

Perform inspections in conditions close to those in which the problem occurred.



Page: 87



6.2 Points to Check before Correcting Image Problems

1.

Is the printer being run in proper ambient conditions?

2.

Have the supplies (toner) and the routine replacement part (image drum cartridge) been replaced properly?

3.

Does the paper meet specifications? See paper specifications section.

4.

Has the image drum cartridge been installed properly?



Page: 88



6.4 Preparation for Troubleshooting

(1) Operator panel display

The error messages for this printer are displayed on the liquid crystal display (LCD) in the operator panel. Take proper corrective action as directed by messages that are displayed on the LCD.



Page: 89



6.5 Troubleshooting Flow

If problems should develop in this printer, troubleshoot using the following flowchart.

6.5.1 LCD status message/problem list

6.5.2 LCD message troubleshooting

6.5.3 Image troubleshooting



Page: 90



6.5.1 LCD status message/problem list

Table 6-1 lists the status and problems that may be indicated by messages on the LCD.

xxx: Emulation in operation (AUT, PCL, PS) ffff: Trays (Tray1, Tray2, Front) mmmmmm: Paper Size (Letter, A4, etc...)

Category: Daily Status - Table 6.1

LCD Status

Message

INITIALIZING

ON-LINE

OFF-LINE

PRINTING

LED

K

Undefined

LED

C

Undefined

LED

M

Undefined

Undefined Undefined Undefined




PROCESSING

.xxx


DATA PRESENT

.xxx


LED

Y

Undefined

Undefined

Undefined

Undefined

Undefined

Undefined

Undefined

READY ATTENTI

ON

ON OFF

OFF

ON

OFF

Undefined

Blink

Undefined

OFF

Undefined

Undefined

Undefined

Undefined

Undefined

Trouble or Status

Remedy

Displayed when the page printer is power on.

Displayed while the controller is initializing

(after the page printer is powered on).

The printer is Normal in the on-line mode.

operation

The printer is in the off-line

Normal operation mode.

Displayed while the page printer is printing.

Normal operation

Normal operation

Displayed while the page printer is receiving data or performing the output processing.

Indicates that the data remains unprinted in the buffer.

Normal operation

When powered on, the page printer turns on LEDs for about one second to check whether the

LEDs and the LCD are normal

Normal operation

Normal operation

RESET TO

FLUSH

PS NOT

AVAILABLE

TNR SNS *******


RESET TO SAVE Undefined Undefined Undefined

FLUSHING JOB Undefined Undefined Undefined


COPY nnn/mmm Undefined Undefined Undefined

ON ON ON

Undefined

Undefined

Undefined

ON

OFF

Blink

Undefined Undefined

Undefined Undefined

ON Undefined

Undefined

OFF

OFF

Undefined

Undefined

ON

When this message is displayed,

To clear this message, press the data remains RESET switch.

When this message is displayed, data remains unprinted in the buffer

(off-line).

To clear this message, press the

RESET switch.

This message prompts the user to press the RESET switch, to cancel the data.

indicates that the data

(to the end of processing) is being canceled.

Normal operation

Indicates that a printer language which is not

Normal operation

When

"CLEARABL available has E been specified by

WARNINGS

" On the the PCL command.

menu is set to "ON", press the

RECOVER switch to clear the message.

Displays the number of copies being printed when the number of copies being printed is two or more.

Normal operation

Indicates that Toner sensor is abnormal when page counter is above thirty.

(The LED of the color lights).

This message is cleared when the drum is properly positioned or sensor level which is exchanged corresponds to the LED color lights.

POWER SAVING Undefined Undefined Undefined

TNR LOW ******* ON

CHG DRUM

*******

FUSER LIFE

ON

Undefined

ON

ON

Undefined

ON

ON

Undefined

Undefined

ON

ON

Undefined

Undefined

Undefined

Undefined

Undefined

Undefined Indicates that the page printer is in

Power Save

Mode (in

Normal operation which the fuser is powered off).

ON or Blink Indicator that toner of the specified color is running out.

However, when "LOW

TONER" is set to "OFF", the

ATTENTION indicator blinks.

Normal operation

This message is cleared when the toner cartridge is replaced.

ON Indicates that the end of life of a specified color drum has been reached.

(The LED of the color lights).

Normal operation

This message is cleared when the specified drum is replaced.

After the drum is replaced, its drum counter must be reset.

(See the user's manual)

ON Indicates that the end of life of the

Fuser Unit has been reached.

Normal operation

This message is cleared when the

Fuser Unit is replaced.

After the fuser unit is replaced, it's counter must be reset.


BELT LIFE

RESET

PRINT DEMO

PAGE

PRINT MENU


OFF

Undefined

Undefined

OFF

Undefined

Undefined

OFF

Undefined

Undefined

Undefined

OFF

Undefined Blink or ON Undefined

Undefined

Undefined

OFF

Blink or ON

ON

OFF

Undefined

Indicates that the end of life of the

Transfer Belt has been reached.

Normal operation

This message is cleared when the transfer belt is replaced.

After the

Transfer Belt is replaced, its counter must be reset. (See the user's manual).

Clears the data left unprinted in the buffer and initializes the printer to the user default status. The temporary

DLL, macro, and user patterns are deleted.

Prints out a demo page.

Normal operation

Normal operation

This operation is started by a command when the

READY LED is on or by a switch when the READY

LED is blinking.

Prints out a menu setting.

Normal operation



LED is blinking.

OIL ROLLER

LIFE

OIL ROLLER

LIFE

PRINT FONTS

*******

TONER EMPTY

Undefined

Undefined

Undefined

Blink

Undefined

Undefined

Undefined

Undefined

Undefined Undefined

Blink Blink

Undefined

Undefined

Undefined

OFF

Undefined Blink or ON Undefined

Blink OFF

ON

Blink

Blink


Oil roller assy has been reached.

(Warning)


Oil roller assy has reached.

(Alarm)

Prints out all character sets (fonts) for the printer available.



LED is blinking.

Normal operation

Displayed when 50 pages are printed after

"Toner Low" was detected to prompt the user to replace the toner cartridge.

This message temporarily disappears when a cover of the page printer is opened, but will be displayed every 20 pages until the cartridge is replaced.

This message is cleared when the oil roller assy is replaced.

After the oil roller assy is replaced, its counter must be reset.


This message is cleared when the oil roller assy is replaced.

After the oil roller assy is replaced, its counter must be reset.


WASTE TONER

FULL

Undefined Undefined Undefined Undefined OFF

FRONT TRAY

ERROR

PRESS

RECOVERKEY


COVER OPEN Undefined Undefined Undefined Undefined OFF

BELT NOT

INSTALLED


WASTE TONER

BOX NOT

INSTALLED


Blink

Blink

Blink

Blink

Blink

Displayed when 100 pages are printed after

Waste Toner

NR FULL message is detected, prompting the user to replace the

Waste Toner

Bottle.

This error is reset when the Waste

Toner Bottle is replaced.

Printing is suppressed until it is replaced.

Indicates that the front feeder has caused a home position error.

Indicates that the printer cover is open.

The front feeder becomes unavailable when the

RECOVER switch is pressed.

The other tray is available.

This message is cleared when the front feeder assembly is replaced.

This error is reset when the cover is closed. If this error occurs frequently go to Section

6.5.2.

Indicates that the transfer belt has not been installed.

This error corrected when the

Transfer Belt is installed.

Printing is suppressed until the

Transfer Belt is installed.

Indicates that the

Waste Toner

Bottle has when the

Waste Toner not been installed.

This error is corrected

Bottle is installed.

Printing is suppressed until the

Waste Toner

Bottle is installed.

WASTE TNR

NRFULL

OIL PAD NOT

INSTALLED

Undefined Undefined Undefined Undefined Undefined ON

Undefined Undefined Undefined Undefined OFF BLINK

Indicates that the

Waste Toner

Bottle is near full.

Nothing

Indicates that the Oil

Pad Assy has not been installed.

Please install the Oil

Pad Assy.

Category: Buffer Overflow - Table 6.1

LCD Status

Message

ERROR

MEMORY

OVERFLOW

LED

K

Undefined

LED

C

Undefined

LED

M

Undefined

ERROR

RECEIVE

BUFFER

OVERFLOW


LED

Y

Undefined

Undefined

READY ATTENTI

ON

off Blink

OFF Blink


Remedy

Indicates that data overflowed the memory space.

- Too much print data in one page

- Too much macro data

- Too much

DLL data

- Data overflow after compression of frame data

Indicates that the receive buffer overflowed.

This error corrected when the


Expand

RAM or reduce data.

This error is corrected when the


Increase the setting of

Receive

Buffer Size

(in User

Maintenance

Mode), then send the data from the host or expand

RAM.

Category: Tray Paper Out- Table 6.1

LCD Status

Message

LED

K

LED

C

LED

M

LED

Y

READY ATTENTI

ON


Remedy

PAPER OUT mmmmmmm mm tttttt

Undefined

CANNOT USE

A6 PAPER ON

TRAY 2

Undefined

TRAY 1 INSTALL Undefined

Undefined Undefined Undefined OFF



Blink

Blink

Blink

Indicates that the tray is empty or the cassette assembly has not been installed.

tray or the cassette assembly is mounted.

mm..m: paper size

(Letter,

Executive,

Legal 14,

Legal 13, A4,

A5, A6 or B5 size)

This message is cleared when paper is set in the tttttt: Tray type (Tray 1,

Tray 2, or

Front)

Displayed when the second tray

(optional) contains

A6-size paper.

The second tray

(optional) cannot use

A6-size paper. The

A6-size paper is available to the first tray or to the front feeder.

Indicates that the first tray is pulled out when the second tray

(optional) is used.

This message is cleared when the first tray is mounted corrected.

Category: Paper Request - Table 6.1

LCD Status

Message

LED

K

LED

C

mmmmmmm

MANUAL PAPER

REQUEST

Undefined Undefined

LED

M

Undefined

LED

Y

Undefined

READY ATTENTI

ON

ON OFF


Remedy

Requests the user to load the specified paper in the manual feeder.

Normal operation

This message is cleared when the specified mm..m: paper size

(Letter,

Executive,

Legal 14,

Legal 13, A4, paper is loaded into the manual feeder.

A5, A6 or B5 size)

mmmmmmm

MANUAL

PAPER

REQUEST

Undefined Undefined Undefined Undefined ON OFF Requests the user to load the specified paper in the manual feeder.

Normal operation

This message is cleared when the mm...m: paper size

(Letter,

Executive,

Legal 14,

Legal 13, A4,

A5, A6, or

B5 size).

specified paper is loaded into manual feeder.

Category: Paper Size Error - Table 6.1

LCD Status

Message

ERROR PAPER

SIZE CHECK ttttt

LED

K

Undefined

LED

C

Undefined

LED

M

Undefined

LED

Y

Undefined

READY ATTENTI

ON

OFF Blink


Remedy

Indicates that wrong size paper was fed from the specified tray.

Check the size of paper in the tray or whether two or more tttttt: Tray type (Tray 1,

Tray 2, or

Front) paper sheets are fed at a time.

When the cover is opened and closed, this error is reset and printing resumes. If this error occurs frequently go to Section

6.5.2.

Category: Paper Jam Error - Table 6.1

LCD Status

Message

LED

K

LED

C

PAPER INPUT

JAM CHECK tttttt

Undefined Undefined

LED

M

Undefined

LED

Y

Undefined

READY ATTENTI

ON

OFF Blink


Remedy

Indicates that a paper jam occurred

Check the size of paper in the tray or when paper feeds from the specified tray.

tttttt: Tray type (Tray 1,

Tray 2, or

Front) whether two or more paper sheets were fed at a time. When the cover is opened and closed, this error is reset and printing resumes. If this error occurs frequently go to Section

6.5.2.

PAPER FEED

JAM tttttt

Undefined

PAPER EXIT

JAM REMOVE

THE PAPER

Undefined



Blink

Blink

Indicates that paper coming out of the tray jammed. tttttt: Tray type (Tray 1,

Tray 2, or

Front)

Open the cover and remove the paper jam from the inside of the printer.

When the cover is opened and closed, this error is reset and printing resumes.

Indicates that paper jammed exiting the printer.

If this error occurs frequently go to Section

6.5.2.

Open the cover and remove the paper jam from the inside of the printer.

When the cover is opened and closed, this error is reset and printing resumes.

If this error occurs frequently go to Section

6.5.2.

Category: Interface Error - Table 6.1

LCD Status

Message

LED

K

LED

C

OKI HSP I/F

CARD

RESETTING

Undefined Undefined

LED

M

Undefined

LED

Y

Undefined

READY ATTENTI

ON

OFF Blink


Remedy

Indicates that the OKI

HSP interface card is being reset.

The page printer recovers automatically when resetting is complete.

JAM 001 Error Undefined Undefined Undefined Undefined OFF

ERROR HOST

I/F OKI HSP xx


Category: Controller Error - Table 6.1

LCD Status

Message

LED

K

LED

C

LED

M

Blink

Blink xx=21: It takes 3 seconds or more before the RUN mode starts or the page printer received a

Run Mode command in the power-on mode.

xx22:

HSP-PC communicati on error.

Indicates that Process error occurred.

Notifies that the power supply LSI has been reset due to line noise, etc. (process error)

Indicates that a fatal

OKI HSP interface error has occurred.

xx=10:

Interface timeout xx=20:

Initialization failed 10 seconds after the page printer is powered on.

Open cover and remove the paper.

Close cover to recover and proceed.

This page printer recovers from the error when the

RECOVER switch is pressed. If this error occurs frequently, replace the

OKI HSP interface card or the main board

(PCR PCB).

LED

Y

READY ATTENTI

ON


Remedy

EEPROM

RESETTING

ERROR

POSTSCRIPT

Undefined

Undefined

Undefined

Undefined

Undefined

Undefined

Undefined

Undefined

OFF

Blink

Blink

OFF

Indicates that the identification number of

EEPROM is invalid.

Set the default values in

EEPROM and it will be

.

recovered automatically

Indicates that the interpreter detected one

Simplify the pages.

of the errors given below.

The data coming after this error is recovered until the end of the command.

When the reception of the command is completed, this message is

.

reset automatically

- Invalid

PostScript command

- The page is complicated and the vertical memory is full.

xx

Category: Interface Error (continued) - Table 6.1

LCD Status

Message

LED

K

LED

C

LED

M

LED

Y

READY ATTEN

TION

Code

(nn)


Details of error

Remedy

Remedy

ERROR nn



Blink

Blink

10

30

Indicates that an error was found in the program

ROM by the program

ROM check.

Power off, then power on the printer. If this error still occurs, replace the program

ROM on the main board

(PCR PCB) or the main board itself.

When replacing the main board


Indicates that an error was found in the resident

RAM by the resident

RAM check.


(PCR PCB), remove the

EEPROM chip and proms from the old main board and mount it on the new main board.

Power off, then power on the printer. If this error still occurs, replace the main board

(PCR PCB), the




Blink

Blink

40

50

Indicates that an error was found in the

Power off, then power on the printer. If this

EEPROM by error still the

EEPROM check.

occurs, replace the

EEPROM on the main board (PCR

PCB) or the main board itself.




Indicates that an error was found in the optional

ROM by the optional

ROM check.

Power off, then power on. If this error still occurs, replace the optional

ROM on the main board





Page: 91



6.5.2 LCD message troubleshooting

If a problem cannot be repaired according to the LCD message problem list, troubleshoot using the troubleshooting chart.

No.

Trouble

1 The printer does not work normally after being turned on.

2 JAM Error

Paper Input Jam (1st Tray)

Paper Input Jam (Front Feeder)

Paper Feed Jam

Paper Exit Jam 2-4

3 Paper Size Error

4 Image Drum

5 Fusing Unit Error

6 Fan Motor Error

7 Cannot receive data from parallel interface

8 Cannot receive data from OKI HSP interface

Flowchart

Number

(1)

(2) -1

(2) -2

(2) -3

(2) -4

(3)

(4)

(5)

(6)

(7)

(8)

Note: When replacing the main board (PCR PCB) and the engine board (PX4 PCB), remove EEPROM chips from the old boards and install them on the new boards.





6.5.3 Image Troubleshooting

When the printout images are not satisfactory, follow the troubleshooting steps listed below.

Printout problem

Light or blurred images (Figure 6.2-A)

Dark background (Figure 6.2-B)

Blank paper (Figure 6.2-C)

Vertical black (Figure 6.2-D)

Vertical white (Figure 6.2-F)

Poor fusing (Images are blurred or peeled off when touched)

Evenly spaced, repeating marks (Figure 6.2-E)

Missing characters or colors

Poor synthesization Color

Printout colors different from original colors

Reference flowchart No.

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8)

(9)

(1)

Page: 92

(A) Light or blurred images (B) Dark background (C) Blank paper

(D) Vertical lines (E) Evenly space, repeating marks

(D) Vertical lines



Blank paper



Page: 93



Vertical black



Page: 94



Vertical white



Page: 95





Poor fusing (Images are blurred or peeled off when touched)

Page: 96



Page: 97



Evenly spaced, repeating marks

Possibly defective part

94.2 mm Image Drum

44.0 mm Developing Roller

28.3 mm toner Supply Roller

28.3 mm Charging Roller

114 mm Heat Roller

47.1 mm Transfer Roller

Repairing

Replace the image drum unit.




Replace the fusing unit assembly.

Replace the Transfer Belt assembly.

Note: After replacing the image drum unit the fusing unit and the Transfer Belt cassette assembly, be sure to reset their counters in the User Maintenance mode.



Missing characters or colors



Page: 98



Poor synthesization Color



Page: 99

Notes:

1. When replacing the engine board (PX4 PCB), demount the EEPROM chip from the old engine board and remount it on the new one.

2. After replacing the image drum unit, be sure to reset its counter in the User Maintenance mode.

3. After replacing the LED head assembly, be sure to adjust its drive time and correct its color deviation.





Printout colors different from original colors

Page:



7.1 Resistance Check


Chapter 7 Wiring Diagram

Page: 100



7.2 Program/Font ROM Location

(1) PCR-PCB (Main Board)


Chapter 7 Wiring Diagram

Page: 101

(2) PX4-PCB (Engine Board)

(3) Power-Supply PCB

(4) PCO PCB

(5) PXF PCB



Page: 102


Chapter 8 Centronics Parallel Interface

Centronics Parallel Interface

1) Connector z Printer side : z Cable side :

36-pin receptacle

(single port) Type 57RE-40360-830B-D29A (made by Daiichi

Denshi), or equivalent

36-pin plug

Type 57-30360 (made by Daiichi Denshi) or equivalent

Plug-552274-1 (AMP), 552073-1 (AMP) or equivalent

2) Cable z Cable length : 6 ft (1.8 m) max.

(A Shielded cable composed of twisted pair wires is recommended for noise prevention.)

Note: Cable is not supplied with the printer, and is not available from Oki.

3) Table of Parallel I/F Signals

z Connector pin arrangement z z

4) Signal Level

LOW : 0 V to +0.8 V

HIGH : +2.4 V to 5.0 V

5) Specifications

Item

Mode

Data bit length

Input prime

Receive buffer

Control

Description

Compatibility mode, Nibble mode, ECP mode

8 bits (in the compatibility mode)

Valid/Invalid

8K, 20K, 50K, 100K, 1M Bytes

Handshaking control is performed in each mode.

Data received from the host is stored in the receive buffer.

Busy control is performed.

Signal lead control is performed.

6) Timing Charts

Data receiving timing



Diagram A1: Covers (Top & Sides)


Chapter A Illustrated Parts List

Page: 103

Diagram

Number

OKI Part

Number

Univerisal Part

Number

Part

Description

11

12

13

14

8

9

10

10

4

5

6

7

1

2

3

19

20

21

22

23

24

25

15

16

17

18

51025202

40098401

40187501

40187601

40314801

40315001

0

0

40098301

40314901

40314902

40492601

40098201

40315101

0

0

40195601

40195701

40387201

56636205

50318701

40303601

40449901

40728601

40728701

40664701

Plate: Ground (Contact)

Cover Rear

Stacker Faceup

Support Stacker

Cover Assy. Stacker

Cover Assy. Side (R)

Cover Side (R)

Frame Side Right

Cover Front (R)

Cover Assy. OP Panel

Cover Assy. OP Panel (OEL/INT 230V)

Cover Sub Assy. OP Panel

Cover Front (L)

Cover Assy. Side (L)

Cover Side (L)

Cover Knob

Frame Side (L)

Cover Rear (L)

PCB:PCO

CABLE: OP

Screw

Guide Eject FD Assy.

Cover Sub Assy. Stacker

Film Waste Toner

Foam Seal (Cover)

Spring : Support



Diagram A2: Printer Unit



Page: 104

Diagram

Number

OKI Part

Number

Univerisal Part

Number

Part

Description

11

12

13

14

7

8

9

10

4

5

5

6

1

2

3

19

20

21

21

22

15

16

17

18

25

26

27

28

29

30

23

23

23

24

22

22

22

23

40255201

40303501

40303401

40410701

40019001

40018901

40311201

40193501

40193601

40303301

40309801

40490801

40645301

40065601

40325001

40168001

40193201

40607001

40744501

40795501

40744401

40490904

40490901

40370603

40370602

40370604

40370601

40370201

40370302

40370301

40370303

40191201

54122930

55700401

40449001

40294201

40641801

40645401

Motor Fan (80-25)

Frame Eject Assy.

Guide Paper Eject Assy.

Frame Upper Assy.

Power Unit ACDC Switching (230v)

Power Unit ACDC Switching (120v)

FDR Unit Front

Plate FFLink

Bracket FF Link

Guide Paper Input Assy.

Holder Gear Toner Assy.

Belt Unit

Oil Roller Unit

High Voltage Power Supply Unit

Bracket HV (BT) Assy.

Plate HV

Holder Innret

Separator Frame assy.

Separation Spring

Spring: Damper assy.

Paper Cassette Assy

Fuser Unit (230V)

Fuser Unit

Magenta Toner Cartridge Kit "Type C1"

Yellow Toner Cartridge Kit "Type C1"

Cyan Toner Cartridge Kit "Type C1"

Black Toner Cartridge Kit "Type C1"

Black Image Drum Kit "Type C1"

Magenta Image Drum Kit "Type C1"

Yellow Image Drum Kit "Type C1"

Cyan Image Drum Kit "Type C1"

Sheet Insuration

Screw / PSW2W3-30C

Hand hopper Assy.

FDR Unit Main Assy.

CONN Cord Wire

CONN Cord Wire

Waste Toner Box



Diagram A3: Main Chassis Unit (1)



Page: 105

Diagram

Number

OKI Part

Number

Univerisal Part

Number

Part

Description

40449401

40449701

40097301

40144301

40144401

40189601

40450201

40408601

40264401

50608118

40447201

40388401

40446501

40162201

40172401

40437501

40261301

40130301

51608901

51607301

40250901

40164501

40164301

40171101

40388501

40195101

40195001

40175201

40563101

50318601

40162101

40175101

40171801

40447301

40303201

40303101

40302901

40164801

40448501

40551301

40714401

40743701

40686701

40661001

40661501

40671001

40175701

40096401

40135301

50808201

40450401

40171401

40171301

40308801

40290201

40163401

40163701

40163702

40163501

40163601

40383701

40383801

40335001

40335101

40171201

40144501

40437601

40130801

40310601

40303301

53

54

55

56

49

50

51

52

45

46

47

48

41

42

43

44

37

38

39

40

33

34

35

36

29

30

31

32

25

26

27

28

65

66

67

68

69

70

61

62

63

64

57

58

59

60

12

13

14

15

8

9

10

11

4

5

6

7

1

2

3

20

21

22

23

24

16

17

18

19

Plate Base

Guide Belt (F)

Photo Interrupter

Lever Paper End

Sensor Assy. Box Toner

Frame Side (L)

Frame Side (R)

Contact SB Assy.

Plate Blind

Guide Side Heat unit

Spring Lock (L)

Spring Lock Heat

Lever Lock Heat unit (L)

Lever Lock Heat unit (R)

Limiter-2Way (L)

Limiter-2Way (R)

Plate Guard (L)

Plate Guard (R)

Stay Lower (Front)

Lever Regist Sensor

PCB:PXM

Roller Registration

Roller Assy. Hopping

Guide Paper Input Assy.

Bearing Hopping

Gear(Z20)

Bearing

Bushing ADF

Gear Oneway (96)

Gear Oneway (Z48/48)

GearOneway (Z48)

Stay Upper (Front)

Bracket SW

Plate Latch lever (FD)

Spring Latch lever (FD)

Stay Heat

Conection cord wire

Screw / PB4043-4718P001

Guide Assy. Heat Unit

Stay EP

Guide Assy. Heat

Hopping Roller Boss Assy.

Guide Paper Input A

Lever Input Sensor

Lever 2nd Feed Sensor

Shaft Hopping roller (1st)

Bracket Switch

Holder Switch

Spring Eject Heat

Knock Pin

CONN Cord Wire

Bracket Switch (Side)

InterLock SW Cable Assy.

Cover Sensor

AMP6P-AMP4P

PCB:PXL

AMP7P-AMP7P

Cordwire JST6P-AMP3PX2

Plate Base Assy.

Guide Cassette (L) Assy.

Guide Cassette (R) Assy.

Plate Bottom

Conection cord wire

Plate Shield Heat

Heat-Sink (801)

Roller Assy. Hopping

Spacer Register Gear

Cover Bottom (Weld)

Plate Guide

Rubber Foot



Diagram A4: Main Chassis Unit (2)



Page: 106

Diagram

Number

OKI Part

Number

Univerisal Part

Number

Part

Description

12

13

14

15

8

9

10

11

16

17

18

19

20

4

5

6

7

1

2

3

40324501

40278101

51608901

40324401

40324601

40135301

40309001

40308501

40324301

40167901

40132301

40132401

50705301

40168401

40188501

40136201

0

40173301

40449501

40172701

PP3522-3568P001

Contact (BL-L) Assy.

Plate Earth (LK)

Bearing

Contact (CL-L) Assy.

Contact Bkt (BL R) assy

Photo Interrupter

Contact BKT (CL-R) Assy

Eraser BKT Assy.

Eraser BKT (KCM) Assy.

Shaft Link

Lever Link (R)

Lever Link(L)

E Ring

Spring Support (R)

Spring Support (L)

Bracket Sensor Toner (KCM)

Bearing

AMP14P-AMP3PX4

Sensor Assy. T (KCM)

AMP8P-AMP2PX4



Diagram A5: Main Chassis Motor/PCB



Page: 107

Diagram

Number

OKI Part

Number

Univerisal Part

Number

Part

Description

12

13

14

15

8

9

10

11

4

5

6

7

1

2

3

20

21

22

23

24

16

17

18

19

37

38

39

40

33

34

35

36

41

42

43

44

29

30

31

32

25

26

27

28

40310001

40392301

40309101

40309201

40208101

40664401

40175001

40143401

40143501

40164401

40124101

40634102

40437201

40233901

40604802

40376901

40197101

54122925

40377001

40171002

40456101

40173001

40171001

40447101

40173301

40171801

40172401

0

40172801

40447301

40177701

40447001

40172701

000000

000000

0

40450001

0

40135301

40448901

40664501

40583901

40704901

40447201

Gear Heat Assy.

Motor Assy. Belt

Main Motor (A) Assy.

Main Motor (B) Assy.

Gear Oneway (Z30)

LEVER: UP/DOWN 2 (YMC)

Bracket Hopping Motor

Gear Idle (92)

Gear Feed (118/17)

Gear Oneway (Z48/74)

Motor Pulse (ID)

PCB: PX4 (Engine)

PCB:PXF

Cover CU

PCB: PCR (Main)

Plate Sealed

Motor Fan

Screw

Board IF

AMP8P-AMP4PX2

JST12 AMP15 AMP10 AMP9

AMP12P-AMP3PX2

AMP8P-AMP4PX2

AMP12P-AMP3PX4

AMP14P-AMP3PX4

AMP7P-AMP7P

AMP6P-AMP4P

HCUJ (1.25)-16F-300

AMP12-AMP4,3X2

Cordwire JST6P-AMP3PX2

Connector Cord

JST8P-JST8P

AMP8P-AMP2PX4

PS-SIMM

DRAM SIMM

Network Card

Belt Motor Mech Assy.

Unknown

Photo Interrupter

Gear Heat Mech Assy.

LEVER: UP/DOWN 2 (K)

Plate-Earth(LKR)

Plate-Shield CU

CONN Cord Wire



Diagram A6: Frame Upper Assy



Page: 108

10

11

12

13

6

7

8

9

Diagram

Number

1

2

3

4

5

18

19

20

21

14

15

16

17

OKI Part

Number

40187901

40449101

40187801

40293601

40197701

40536001

40394201

40171702

40408601

40449301

40197401

40449201

40218301

56636301

56636201

40547301

40456101

40410701

56636206

56730960

40700401

Univerisal Part

Number

Part

Description

Frame Upper

Holder LED Assy.

Guide Holder

Spring Head

Spring EP

PCB: PD6 Board

Plate Oil Sensor

AMP2P-MSW

Holder Switch

Plate Support (L) Assy.

Torsion Spring (A)

Plate Support (R) Assy.

Torsion Spring (B)

Flat Cable Clip

HCUJ(1.25)-14F-140-10S6(B)-MI(2896)

LED HEAD

JST12 AMP15 AMP10 AMP9

Frame Upper Assy.

HGCUJ(1.25)-12F-160

PXW26-1250B

Film_FG



Diagram A7: Guide Cassette (R) Assy



Page: 109

Diagram

Number

1

2

3

4

5

6

OKI Part

Number

40449801

50928901

56730640

40177701

40368301

53346601

Univerisal Part

Number

Part

Description

Guide Cassette (R) Sub Assy.

Spring Detector

Square shaped connector

Connector Cord

PCB:PXC

Plate Earth



Diagram A8: Main Motor (A) Assy



Page: 110

Diagram

Number

7

8

9

10

11

3

4

1

2

5

6

OKI Part

Number

40165301

40124101

40129901

40130701

40130601

40130201

40129501

40135301

40308601

40135301

40449601

Univerisal Part

Number

Part

Description

Frame Motor (ID1)

Motor Pulse (ID)

Gear (25/75)

Gear Helical (67/43/24)

Gear Helical (67/18)

Gear Z53/44

Bracket Support (ID)

Photo Interrupter

Toner Sensor (Y) Assy.

Photo Interrupter

Sensor Assy. T (Y)



Diagram A9: Main Motor (B) Assy



Page: 111

Diagram

Number

5

6

7

8

1

2

3

4

OKI Part

Number

40129401

40124101

40129901

40130701

40130601

40130201

40129501

40135301

Univerisal Part

Number

Part

Description

Frame Motor (ID)

Motor Pulse (ID)

Gear (25/75)

Gear Helical (67/43/24)

Gear Helical (67/18)

Gear Z53/44

Bracket Support (ID)

Photo Interrupter




Chapter Product Accessory: I. Second Paper Feed

Page: 112

Preface

This Maintenance Manual is intended for the maintenance personnel and describes the field maintenance methods for High Capacity Second Paper Feeder option of OKIPAGE 10i Series LED Page Printer.

Refer to the Printer Handbook for equipment handling and operation methods.





Page: 113

1.0 Outline

1.1 Functions

1.2 External View and Component Names





Page: 114

1.1 Functions

The printer is mounted on top of this High Capacity Second Paper Feeder. The High Capacity Second

Paper Feeder supplies paper automatically through the operation of pulse motor (hopping), which is driven by signals sent from the printer.

The main functions are the following: z Paper that can be used:

[Paper Type] z z z z

Standard paper: Xerox 4200 (20-lb)

Special paper: OHP sheets (for PPC), Label sheets (PPC sheets); use of envelopes or thick paper is not possible.

Cut sheet size: A4, A5, B5, Letter, Executive, Legal13, Legal14

Special size: Paper width: 148 to 216mm; Paper length: 210 to 355.6mm

z z

[Weight]

16-lb to 24-lb (60 to 90 g/m

2

)

Paper setting quantity: 500 sheets of paper weighing 64 g/m

2





Page: 115

1.2 External View and Component Names





Page: 116

2.0 Mechanism Description

2.1 General Mechanism

2.2 Hopper Mechanism





Page: 117

2.1 General Mechanism

The sheet at the very top of the stack in the paper cassette is fed into the printer, one sheet at a time, when the High Capacity Second Paper Feeder receives the signal from the printer.

(1) First, the hopping motor rotates in the direction of arrow A. The hopping gear is turned, via the idle gear, and the roller C on the same shaft is also turned. At the same time, the planet gear D' moves in the direction of the arrow E, and roller G turns; the paper is fed for a predesignated distance until its leading edge reaches roller G.

(2) Next, the hopping motor rotates in the direction of arrow B. While the hopping gear also turns at the same time, (due to the one-way bearing being engaged at the hopping gear), the roller C does not turn.

The planet gear D' moves in the direction of the arrow F, drives the Roller G and feeds the paper into the printer, until it reaches the registration roller of the printer.

Once the delivered into the printer, the paper is then controlled and fed through by the registration motor of the printer.





Page: 118

2.2 Hopper Mechanism

The hopper automatically feeds the printer with the paper being sent, single sheet at a time. When the paper is loaded in the paper cassette, it is then transported by the hopping motor, carrying forward only a single sheet at a time, caught by hopping roller at a time.





Page: 119

3.0 PARTS REPLACEMENT

This section covers the procedures for the disassembly, reassembly and installations in the field. This section describes the disassembly procedures, and for reassembly procedures, basically proceed with the disassembly procedures in the reverse order.

3.1 Precautions Concerning Parts Replacement






Page: 120

3.1 Precautions Concerning Parts Replacement

(1) Parts replacements must be carried out, by first turning the printer power switch off "O" and removing the printer from the High Capacity Second Paper Feeder.

(2) Do not disassemble the High Capacity Paper Feeder if it is operating normally.

(3) Establish the extent of disassembly suitable for the purpose of the procedure, and do not disassemble any more than necessary.

(4) Only specified service tools may be used.

(5) Disassembly must be carried out according to the prescribed procedures. Parts may be damaged if such procedures are not followed.

(6) Small parts such as screws and collars can easily be lost. Therefore, these parts should be temporarily fixed in the original location.

(7) When handling printed circuit boards, do not use any glove which may generate static electricity.

(8) Do not place the printed circuit boards directly on the equipment or floor.





Page: 121


This section describes the layout of the main components.





Page: 122

3.3 Parts Replacement Methods

This section describes the parts replacement methods for the components listed in the disassembly order diagram below.

Idle rollers (3.3.1)

AOLT-PCB (3.3.2)

Hopping motor (3.3.3)

Feed roller (3.3.4)

Hopping roller (3.3.5)

Side frame (L) assy (3.3.6)

Side frame (R) assy (3.3.7)





Page: 123

3.3.1 Idle rollers

(1) Remove 16 screws 6 and remove Cover Upper 4 and Cover Lower 5.

(1) Remove two screws 1 and remove the front panel assy 2.

(2) Remove two idle rollers 3.





Page: 124

3.3.2 AOLT-PCB

(1) Remove 16 screw (1) and remove the Cover Lower (2), Cover Upper (6).

(2) Remove three connectors (3) and three screws (4).

(3) Remove the AOLT-PCB (5).





Page: 125

3.3.3 Hopping motor

(1) Remove the Cover Upper and Cover Lower (see 3.3.1 step 1).

(2) Remove the front panel assy (see 3.3.1 step 2).

(3) Remove two connectors (2) and two screws (3), then remove the hopping motor assy (4). Three gears (5) and the connecting lever (6), as well as the wave washer (7) all come off at the same time, so be careful not to lose them.

(4) Remove two screws (8) and remove the hopping motor (9).





Page: 126

3.3.4 Feed roller

(1) Remove 16 screws and remove Cover Upper and Cover Lower (see 3.3.1 step1).

(2) Remove the front panel assy (see 3.3.1 step2).

(3) Remove the AOLT-PCB (see 3.3.2).

(4) Remove the hopping motor assy (see 3.3.3).

(5) Remove the latch on the feed roller gear (1) and remove the feed roller gear (1).

(6) Remove the latch on the feed roller bearing (2) and remove the feed roller bearing (2).

(7) Shift the feed roller (3) to the right side and lift it out, holding it on the left side.





Page: 127

3.3.5 Hopping roller

(1) Remove the feed roller (see 3.3.4).

(2) Remove the latch on the hopping roller gear 1 and remove the hopping roller gear 1. The bearing F

(2) comes off at the same time, so be careful not to lose it.

(3) Remove the latch on bearing L (3) and remove the bearing L (3).

(4) Remove the hopping roller (sub) (4) and remove the hopping roller rubber (5) from it.





Page: 128

3.3.6 Side frame (L) assy

(1) Remove the hopping roller (see 3.3.5).

(2) Remove three screws (1) and remove the upper plate (2).

(3) Remove the cassette lock spring (3), link (4), pull block (5) (note the directions of the hooks of the cassette lock spring (3)).

(4) Remove the spring (7) and cassette stopper (8).

(5) Remove the screw (9) and remove the link support (10).





Page: 129

3.3.7 Side frame (R) assy

(1) Remove the hopping roller (see 3.3.5).

(2) Remove three screws (1) and remove the upper plate (2).

(3) Remove the cassette lock spring (3), link (4), pull block (5) and earth plate (6) (note the directions of the hooks of the cassette lock spring 3).

(4) Remove the spring (7) and remove the cassette stopper (8).

(5) Remove the screw (9) and remove the link support (10).

(6) Remove the screw (11) and remove the detector spring (12).

(7) Remove the screw (13) and remove the AOLD-PCB (14).





Page: 130

4.0 Troubleshooting

4.1 Precautions Prior to the Troubleshooting

4.2 Preparations for the Troubleshooting

4.3 Troubleshooting Method

4.3.1 LCD Status Message List





Page: 131

4.1 Precautions Prior to the Troubleshooting

(1) Go through the basic checking items provided in the Printer Handbook.

(2) Obtain detailed information concerning the problem from the user.

(3) Check in conditions similar to that in which the problem occurred.





Page: 132

4.2 Preparations Prior to the Troubleshooting

(1) Display on the Operator panel

The status of the problem is displayed on the LCD (Liquid Crystal Display) on the Operator panel. Go through the appropriate troubleshooting procedures according to the messages displayed on the LCD.





Page: 133

4.3 Troubleshooting Method

When a problem occurs, go through the troubleshooting according to the following procedure.





Page: 134

4.3.1 LCD Status Message List

The listing of the statuses and problems displayed in the form of messages on the LCD is provided in

Table 4-1.

Table 4-1

Classification LCD Status Message Description

Jam error

(feeding)

Notifies of occurrence of jam while the paper is being feed from High

Capacity Second Paper

Feeder.

Recovery method

- Check the paper in the High


Feeder. carry out the recover printing by opening and closing the cover, and turn the error display off.

Jam error

(ejection

Paper size error

Tray paper out

Paper size request

Notifies of occurrence of jam while the paper is being ejected from the printer.

- When the problem occurs frequently, go through the

Troubleshooting.

- Check the paper in the printer. Carry out the recovery printing by opening and closing the cover, and turn the error display off.

Notifies of incorrect size - Check the paper in the High paper feeding from High Capacity Second Paper


Feeder.

Feeder. Also check to see if there was a feeding of multiple sheets. Carry out the recovery printing by opening and closing the cover, and turn the error display off.

Notifies of no paper state of the High


Feeder.

- Load the paper in High


Feeder.

Notifies of correct paper size for the High


Feeder.

- Load the requested size in the High Capacity Second

Paper Feeder.

(JAM error)

Paper Inlet Jam



4.3.2 Troubleshooting Flow



Page: 135





Page: 136

5.0 CONNECTION DIAGRAM

5.1 Interconnection Diagram

5.2 PCB Layout



5.1 Interconnection Diagram



Page: 137



5.2 PCB Layout

TQSB-2 PCB



Page: 138



6. PARTS LIST

High Capacity Second Paper Feeder

2nd Tray Assembly



Page: 139





Page: 140

High Capacity Second Paper Feeder

Table 6-1 High Capacity Second Paper Feeder

No.

Description

1 AOLD-PCB

2 Feed roller

-

OKI-J Part #

56408701

Qty

1

1

3 Hopping motor

4 Hopping gear

5 Hopping roller assy

6 Feed roller gear

7 Feed roller bearing

8 Feed idle gear

9 Planet gear

10 AOLT-PCB

11 Connector Cord

12 Square-shaped connector

13 Bush

14 Shaft earth plate

15 Paper cassette assy

16 Separator frame assy

-

-

56511901

51235001

50407901

51235201

51235301

55077511

56730803

56730803

56730641

53346801

40744401

40607701

1

1

1

1

1

1

3

1

1

1

1

1

1

1



2nd Tray Assembly



Page: 141

No.

Description

1 Plate, upper

OKI Part No.

1PP4122-1401P001

8

9

6

7

4

5

2

3

Sheet guide assembly

Front cover assembly

Inner guide assembly

Cassette assembly (2nd tray)

Separation frame assembly

Cover, rear

Stick finger

Hopping flame assembly

10 Bush, metal (ADF)

11 Gear (z70)

12 Lever, sensor (p)

13 Feed roller assembly

14 Cable & connector

3PA4122-1370G001

1PA4122-1369G001

3PA4122-1371G001

1PA4122-1362G004

4PP4120-1009G001

1PA4122-1323P001

4PB4122-1441P001

1PA4122-1366G001

4PP3522-3568P001

4PP4122-1207P001

3PP4122-1331P001

3PA4122-1393G001

3YS4111-3528P001

15 Stepping motor

16 Bracket

17 Gear (z24)

18 Gear (z87/z60)

19 Plate, bottom

20 2nd cassette guide (L) assy

21 Hopping roller assembly

22 2nd cassette guide (R) assy

3PB4122-1399P001

4PP4122-1384G001

4PP4122-1383P001

4PP4122-1226P001

2PP4122-1389P001

1PA4122-1365G001

3PA4122-1367G001

1YX4122-1364G002

Qty/U 500 1000

1 3 5

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

3

3

3

3

3

3

3

3

3

3

6

3

3

3

3

3

3

3

3

3

3

6

6

5

6

5

5

6

5

12

5

5

6

5

6

5

5

5

5

5

5

5

23 One-way clutch gear

24 TQSB-2 PCB

4PB4122-1382P001

4YA4046-1651G002

1

1

6

3

12

6



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