Epson | C82305/06 (Serial I/F) | Service manual | Epson C82305/06 (Serial I/F) Service manual

EPSON
COLOR INK JET PRINTER
EPSON Stylus COLOR 1520
SERVICE MANUAL
SEIKO EPSON CORPORATION
4007394
NOTICE
ƒAll rights reserved. Reproduction of any part of this manual in any form whatsoever
without SEIKO EPSON’s express written permission is forbidden.
ƒThe contents of this manual are subjects to change without notice.
ƒAll efforts have been made to ensure the accuracy of the contents of this manual.
However, should any errors be detected, SEIKO EPSON would greatly appreciate
being informed of them.
ƒThe above notwithstanding SEIKO EPSON can assume no responsibility for any errors
in this manual or the consequences thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice:
Other product names used herein are for identification purposes only and may be
trademarks or registered trademarks of their respective companies.
Copyright  1997 by SEIKO EPSON CORPORATION
Nagano, Japan
ii
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2)
damage to equipment.
WARNING
Signals a precaution which, if ignored, could result in serious or fatal personal injury.
Great caution should be exercised in performing procedures preceded by
WARNING Headings.
CAUTION
Signals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing
repair/maintenance procedures.
WARNING
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND
PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.
2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH
BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN
THEIR LINE OF WORK.
3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL. DO NOT
CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE
POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING
ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
CAUTION
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY EPSON CERTIFIED
REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE,
LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A
PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT
CONNECT IT TO THE POWER SOURCE.
3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE
POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS
AND/OR INDIVIDUAL CHIPS.
4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE
STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN
ACCESSING INTERNAL COMPONENTS.
5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY
THE
MANUFACTURE;
INTRODUCTION
OF
SECOND-SOURCE
ICs
OR
OTHER
NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY
APPLICABLE EPSON WARRANTY.
iii
PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and
repair of Stylus COLOR 1520.
The instructions and procedures included herein are intended for the experience repair technician,
and attention should be given to die precautions on the preceding page. The Chapters are
organized as follows:
CHAPTER 1. GENERAL DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the
printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENT
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides EPSON-approved techniques for troubleshooting.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques and lists lubricants and adhesives required to
service the equipment.
APPENDIX
Describes connector pin assignments, circuit diagrams, circuit board component layout and
exploded diagram.
The contents of this manual are subject to change without notice.
iv
REVISION SHEET
Revision
Issued Data
Contents
Rev. A
FEBRUARY 25 1997
First issue
v
TABLE OF CONTENTS
CHAPTER 1.
CHAPTER 2.
CHAPTER 3.
CHAPTER 4.
CHAPTER 5.
CHAPTER 6.
APPENDIX
GENERAL DESCRIPTION
OPERATING PRINCIPLES
DISASSEMBLY AND ASSEMBLY
ADJUSTMENT
TROUBLESHOOTING
MAINTENANCE
vi
Chapter 1
Product Description
1.1 Features....................................................................................................................1
1.2 Specification ............................................................................................................3
1.2.1 Printing Specifications.............................................................................................................. 3
1.2.2 Control codes ............................................................................................................................ 4
1.2.3 Character tables......................................................................................................................... 4
1.2.4 Paper Feeding ............................................................................................................................ 5
1.2.5 Paper Specification ................................................................................................................... 6
1.2.5.1 Cut Sheet...................................................................................................................... 6
1.2.5.2 Transparency ............................................................................................................... 6
1.2.5.3 Envelope....................................................................................................................... 6
1.2.5.4 Index Card.................................................................................................................... 6
1.2.5.5 Labels (Cut Sheet) ....................................................................................................... 7
1.2.5.6 Continuous Paper......................................................................................................... 7
1.2.5.7 Labels (Continuous) ..................................................................................................... 7
1.2.5.8 Banner .......................................................................................................................... 7
1.2.6 Printable Area ............................................................................................................................ 8
1.2.7 Adjust Lever ............................................................................................................................. 11
1.2.8 Ink Specification ...................................................................................................................... 12
1.2.8.1 Black ink cartridge ...................................................................................................... 12
1.2.8.2 Color ink cartridge ...................................................................................................... 12
1.2.9 Input Data Buffer ..................................................................................................................... 12
1.2.10 Electric Specifications .......................................................................................................... 13
1.2.11 Environmental Conditions.................................................................................................... 13
1.2.12 Reliability................................................................................................................................ 14
1.2.13 Safety Approvals ................................................................................................................... 14
1.2.14 CE Marking............................................................................................................................. 14
1.2.15 Acoustic Noise....................................................................................................................... 14
1.3 Interfaces................................................................................................................15
1.3.1 Parallel Interface ...................................................................................................................... 15
1.3.1.1 Forward Channel Specifications................................................................................. 15
1.3.1.2 Reverse Channel Specifications ................................................................................ 17
1.3.2 Mac Serial Interface................................................................................................................. 18
1.3.2.1 Serial Interface Specifications .................................................................................... 18
1.3.3 Optional Interface .................................................................................................................... 19
1.3.4 Prevention Hosts from Data Transfer Time-out ................................................................... 20
1.3.5 Interface Selection................................................................................................................... 20
1.3.6 Printer language and Control Codes ..................................................................................... 20
1.4 Operation................................................................................................................21
1.4.1 Control Panel ........................................................................................................................... 21
1.4.2 Panel Functions at Power On................................................................................................. 23
1.4.3 Printer Condition and Panel Status ....................................................................................... 24
1.4.4 Cover Open Sensor Operation ............................................................................................... 25
1.4.5 Default Setting ......................................................................................................................... 25
1.4.5.1 Setting Method ........................................................................................................... 25
1.4.5.2 Setting Menus............................................................................................................. 27
1.4.6 Printer Adjustment Mode ........................................................................................................ 29
1.4.6.1 Adjustment Method..................................................................................................... 29
1.4.6.2 Adjustment patterns.................................................................................................... 29
1.4.7 Printer Initialization.................................................................................................................. 30
1.4.8 Self-test Printing Mode............................................................................................................ 30
1.4.9 Hexadecimal Dump Function.................................................................................................. 30
1.4.10 Monochrome Printing Mode ................................................................................................. 30
1.5 Physical Specification .......................................................................................... 31
1.6 Main Components ................................................................................................. 32
1.6.1 C211 MAIN Board ..................................................................................................................... 32
1.6.2 C172 PSB/PSE Board............................................................................................................... 33
Product Description
1.1 Features
The EPSON Stylus COLOR 1520 is a business-use, high speed, and high-quality color ink jet printer. The
main features of this printer are:
‰High Speed Printing
„400 cps for LQ mode
„800 cps for draft mode
‰High print quality for color graphics
„High Resolution
:1440 (H) X 720 (V) dpi printing
„Colors
:Cyan, Magenta, Yellow, Black
„Printing Method
:Traditional and new micro weave printing
„Smaller dot diameter for image improvement
‰Built-in auto sheet feeder with a wide availability and high capacity
„This printer holds
:Envelope up to A2 size portrait
:100 cut sheets (55 g/‡u)
:10 envelopes
:50 transparency films
:70 special paper
‰Built-in 2 interfaces and 1 optional interface card
„Mac serial interface ( up to approximately 900 kbps)
„Bi-directional parallel interface (IEEE1284 level 1 device)
„Optional Type-B interface card
‰4 scalable fonts and 5 LQ fonts
„Scalable fonts
:Roman T, Sans Serif H, Roman, Sans Serif
„LQ fonts
:Roman, Sans Serif, Courier, Prestige, Script
„Useful character tables :Italic, PC437, PC850, PC860, PC861, PC863, PC865, BRASCII,
Abicomp, Roman 8, ISO Latin 1
PC437 Greek, PC852, PC853, PC855, PC857, PC866, PC869,
MOZOAWIA, Code MJK, ISO 8559-7, Latin 1T, Bulgaria, PC774,
Estonia, ISO 8859-2, PC866 LAT
Figure 0-1. Exterior View of the EPSON Stylus COLOR 1520
Rev. A
1
EPSON Stylus COLOR 1520
Table 0-1. Options and Consumables
Model
Description
Serial interface card
32 KB serial interface card
32 KB parallel interface card
32 KB EEE-488 interface card
Twinax interface card
Coax interface card
LocalTalk™ interface card
Ethernet interface card
Type-B Bidirectional parallel interface card
Parallel interface cable (shielded)
from D-SUB 25-pin (computer) to Amphenol 57
(printer)
Serial interface cable
C83603∗/C83604∗
from D-SUB 25-pin (computer) to D-SUB 25-pin
(printer)
Serial interface cable
C83605∗/C83606∗
from D-SUB 9-pin (computer) to D-SUB 25-pin
(printer)
Banner paper holder and cutting guide
C811**∗
S020108
Black ink cartridge
S020089
Color ink cartridge
S041059 / S041025
EPSON 360 dpi ink jet paper (A4)
S041060
EPSON 360 dpi ink jet paper (Letter)
S041065
EPSON 360 dpi ink jet paper (A3)
S041066
EPSON 360 dpi ink jet paper (Super A3/B)
S041061 / S041026
EPSON photo quality ink jet paper (A4)
S041062
EPSON photo quality ink jet paper (Letter)
S041067
EPSON photo quality ink jet paper (Legal)
S041068
EPSON photo quality ink jet paper (A3)
S041070
EPSON photo quality ink jet paper (B)
S041069
EPSON photo quality ink jet paper (Super A3/B)
S041054
EPSON photo quality ink jet card (A6)
S041121
EPSON photo quality ink jet card (5 X 8 inch)
S041122
EPSON photo quality ink jet card (8 X10 inch)
S041071
EPSON photo quality glossy film (A4)
S041072
EPSON photo quality glossy film (Letter)
S041107
EPSON photo quality glossy film (A6)
S041073
EPSON photo quality glossy film (A3)
S041075
EPSON photo quality glossy film (B)
S041074
EPSON photo quality glossy film (Super A3/B)
S041126
EPSON photo quality glossy paper (A4)
S041124
EPSON photo quality glossy paper (Letter)
S041125
EPSON photo quality glossy paper (A3)
S041123
EPSON photo quality glossy paper (A2)
S041063
EPSON ink jet transparencies (A4)
S041064
EPSON ink jet transparencies (Letter)
S041106
EPSON photo quality self adhesive sheet (A4)
S041103
EPSON 360 dpi ink jet banner paper
S041102
EPSON photo quality banner paper
S041***
EPSON ink jet canvas
S041***
EPSON back light film (A3)
S041***
EPSON back light film (A2)
Note) The asterisk is a substitute for the last digit of the product number,
which varies by country.
C82305∗/C82306∗
C82307∗/C82308∗
C82310∗
C82313∗
C82315∗
C82314∗
C82312∗
C82331∗
C82345∗
C83602∗
2
Rev. A
Product Description
1.2 Specification
This section provides detailed information on the EPSON Stylus COLOR 1520.
1.2.1 Printing Specifications
‰Printing method
‰Nozzle configuration
:On demand Ink jet
:Monochrome 128 nozzles (32 x 4 staggered)
:Color
64 nozzles each (magenta, cyan, yellow)
320/360 inch
144/360 inch
144/360 inch
32/360 inch
32/360 inch
#128
#127
#126
#2
32/360 inch
#64
#125
#3
#4
#1
#2
Black
144/360 inch
32/360 inch
32/360 inch
#63
#1
Cyan
#64
#2
#63
#1
Magenta
#64
#2
#63
#1
Yellow
Paper feed direction
Figure 0-2. Nozzle Configuration
‰Printing direction
:Bi-directional with logic-seeking
‰Printing speed and Printable columns
Table 0-2. Print Speed and Printable Columns for Character Mode
Character Pitch
Printable Columns
LQ Speed
Draft Speed
10 cpi (Pica)
12 cpi (Elite)
15 cpi
17.1 cpi(Pica condensed)
20 cpi(Elite dondensed)
136
163
204
233
272
400 cps
480 cps
600 cps
684 cps
800 cps
800 cps
960 cps
1200 cps
1378 cps
1600 cps
Table 0-3. Print Speed and Printable Columns for Raster Graphic Mode
Print Mode
Printable Area
Available Dot
CR Speed
180 dpi X 180 dpi
11 inch
1980
40 ips
360 dpi X 360 dpi
11 inch
3960
20 ips
720 dpi X 720 dpi
11 inch
7920
20 ips
1
2
11 inch
10 ips
7920 *
1440 dpi X 1440 dpi *
Note) 1: 1440 dpi X 720 dpi is available when using driver micro weave only.
2: 1440 dpi X 720 dpi can be printed by sending Following command sequence.
1. Set the print speed to 10 IPS.
2. Print 180 X 720 raster image.
3. Paper feed 31/720 inch.
4. Move 1/1440 inch print position.
5. Print 180 X 720 raster image.
6. Paper feed 31/720 inch.
Repeat the steps from 2 to 6.
Rev. A
3
EPSON Stylus COLOR 1520
1.2.2 Control codes
ESCP/2 and expanded raster graphics code
EPSON Remote command
IBMX24E emulation
1.2.3 Character tables
‰Legal and 14 international character sets
„Standard version:
27 character tables
Italic table
PC 850 (Multilingual)
PC 861 (IceLandic)
PC 865 (Nordic)
BRASCII
ISO Latin 1
PC 852 (East Europe)
PC 855 (Cyrillic)
PC 866 (Russian)
MOZOAWIA (Poland)
ISO 8559-7 (Latin, Greek)
Bulgaria (Bulgaria)
Estonia
PC 866 LAT
‰Typeface
„Bit map LQ font
„ Scalable font
PC 437 (US, Standard Europe)
PC 860 (Portuguese)
PC 863 (Canadian-French)
Abicomp
Roman 8
PC 437 (Greek)
PC 853 (Turkish)
PC 857 ( Turkish)
PC 869 (Greek)
Code MJK (CSFR)
ISO Latin 1T (Turkish)
PC 774
ISO 8859-2 (ISO Latin 2)
EPSON Roman
EPSON Sans Serif
EPSON Courier
EPSON Prestige
EPSON Prestige
10 cpi, 12 cpi, 15 cpi, Proportional
10 cpi, 12 cpi, 15 cpi, Proportional
10 cpi, 12 cpi, 15 cpi,
10 cpi, 12 cpi, 15 cpi,
10 cpi, 12 cpi, 15 cpi
EPSON Roman
EPSON Sans Serif
EPSON Courier
EPSON Prestige
EPSON Script
10.5 pt., 8 pt. − 32 pt. (every 2 pt.)
10.5 pt., 8 pt. − 32 pt. (every 2 pt.)
10.5 pt., 8 pt. − 32 pt. (every 2 pt.)
10.5 pt., 8 pt. − 32 pt. (every 2 pt.)
10.5 pt., 8 pt. − 32 pt. (every 2 pt.)
Note) Each typeface has 4 variations:
Normal, Bold, Italic, and Bold Italic
An example of variations for Epson Roman is as follows:
Epson Roman normal
Epsom Roman bold
Epson Roman italic
Epson Roman bold italic
4
Rev. A
Product Description
‰Combinations of Character tables and typefaces (font)
Table 1-14 shows the available combinations of character tables and Typefaces.
Table 0-4. Character Tables and Fonts
Bitmap Fonts
EPSON Roman
EPSON Sans Serif
EPSON Courier
EPSON Prestige
EPSON Script
Character Tables
Italic
PC 860 (Portuguese))
PC 861 (IceLandic)
PC 863 (Canadian-French)
PC 865 (Nordic)
BRASCII
Abicomp
Roman 8
ISO Latin 1
Italic table
PC 437 (US Standard Europe)
PC 850 (Multilingual)
PC 437 (Greek)
PC 852 (East Europe)
PC 853 (Turkish)
PC 855 (Cyrillic)
PC 857 (Turkish)
PC 866 (Russian)
PC 869 (Greek)
MAZOWIA (Poland)
Code MJK (CSFR)
ISO 8859-7 (Latin/Greek)
ISO Latin 1T (Turkish)
Bulgaria (Bulgaria)
PC 774
Estonia
ISO 8859-2 (ISO Latin 2)
PC 866 LAT
Scalable Fonts
EPSON Roman
EPSON Sans Serif
Scalable Fonts
EPSON Roman T
EPSON Sans Serif H
Supported
Supported
Supported
Supported
Supported
Not
Supported
1.2.4 Paper Feeding
‰Paper transport method
‰Line spacing
‰Paper path
‰Feed speed
Rev. A
:Friction feed with built-in auto sheet feeder (ASF)
:1/6, 1/8 inch or programmable at 1/360 inch
:Cut-sheet
ASF (Front entry)
:FF
Rear tractor
:66 ms / line (1 line = 1/6 inch)
88.9 mm / sec
3.5 inch / sec
5
EPSON Stylus COLOR 1520
1.2.5 Paper Specification
1.2.5.1 Cut Sheet
Table 0-5. Cut Sheet Size
Size
Width
210 mm (8.3”)
215.9 mm (8.5”)
182 mm (7.2”)
215.4 mm (8.5”)
257 mm (10.1”)
297 mm (11.7”)
279.4mm (11.0”)
329 mm (13.0”)
420 mm (16.5”)
431.8 mm (17.0”)
176 mm (6.9”)
250 mm (9.8”)
A4
Letter
B5
Legal
B4
A3
Ledger
A3 wide
A2
US-C
B5 (ISO)
B4 (ISO)
Length
297 mm (11.7”)
279.4 mm (11.0”)
257 mm (10.1”)
355.6 mm (14.3”)
364 mm (14.0”)
420 mm (16.5”)
431.8 mm (17.0”)
483 mm (19.0”)
594 mm (23.4”)
558.8 mm (22.0”)
250 mm (9.8”)
353 mm (13.9)”
‰Paper Thickness
‰Paper Weight
:0.065 mm (0.0025”) to 0.11 mm (0.004”)
2
2
(ASF)
:64 g/ m (17 lb.) to 90 g/ m (24 lb.)
2
2
(Manual insertion)
:52 g/ m (14 lb.) to 90 g/ m (24 lb.)
2
‰Quality
:Exclusive paper * , Bond paper, PPC
Note) 1. A2 portrait and US-C portrait are used by manual insertion only.
2. Be sure to use the designated side of exclusive paper.
1.2.5.2 Transparency
Table 0-6. Transparency Size
Size
A4
Letter
Width
210 mm (8.3”)
215.9 mm (8.5”)
Length
297 mm (11.7”)
279.4 mm (11.0”)
‰Paper thickness
:0.075 mm (0.003”) to 0.085 mm (0.0033”)
Note) Transparency printing is only available at normal temperatures.
Transparency paper must be printed on the designated side.
1.2.5.3 Envelope
Table 0-7. Envelope Size
Size
No.10
DL
C5
Width
241.3 mm (9 1/2”)
220 mm (8.7”)
229 mm (9”)
Length
104.8 mm (4 1/8”)
110 mm (4.3)
162 mm (6.4)
‰Paper Thickness
:0.16 mm (0.006”) to 0.52 mm (0.02”)
2
2
‰Paper Weight
:45 g/m (12 lb.) to 90 g/ m (24 lb.)
‰Quality
:Bond paper, Plain paper, Air mail
Note) Envelope printing is only available at normal temperatures.
Place the longer side of the envelope horizontally when setting.
1.2.5.4 Index Card
Table 0-8. Index Card Size
Size
A6 index card
‰Card Thickness
6
Width
105 mm (4.1”)
Length
148 mm (5.82”)
:0.23 mm (0.0091”)
Rev. A
Product Description
1.2.5.5 Labels (Cut Sheet)
Table 0-9. Label Size
Size
A4
Letter
Width
210 mm (8.3”)
216 mm(8.5”)
Length
297 mm (11.7”)
279 mm (11.0”)
‰Paper thickness
:0.2 mm (0.0079”) including base sheet
‰Quality
:Page printer label
Note) Label must be printed at normal room temperature.
1.2.5.6 Continuous Paper
‰Paper size
‰Paper thickness
‰Paper Weight
:Paper width
101.6 mm (4”) to 406.4 mm (16”)
:Folding length 101.6 mm (4”)
:0.065 mm (0.0026”) to 0.11 mm (0.0043”)
2
2
:52 g/ m (14 lb.) to 82 g/ m (22 lb.)
1.2.5.7 Labels (Continuous)
‰Paper size
ƒ Base sheet
:Paper width
101.6 mm (4”) to 406.4 mm (16”)
:Folding length 101.6 mm (4”)
ƒ Label
:Width
63.5 mm (2.5”)
:Length
23.9 mm (0.94”)
‰Paper thickness
:0.2 mm (0.0079”) or less including base sheet
:0.12 mm (0.0047”) or less without base sheet
‰Quality
:Plain paper
Note) Label (continuous) must be printed under normal room temperatures.
1.2.5.8 Banner
‰Size
‰Thickness
‰Weight
‰Quality
Rev. A
:Width
:210 mm (8.32) to 432 mm (17.0”)
:Length :5.0 m or less (196.9”)
:0.08 mm (0.0031”) to 0.1 mm (0.0039”)
2
2
:64 g/m (17 lb.) to 82 g/ m (22 lb.)
:Plain paper
7
EPSON Stylus COLOR 1520
1.2.6 Printable Area
‰Cut Sheet
PW
LM
RM
TM
PL
Printable Area
BM
Figure 0-3. Printable Area for Cut Sheet
Table 0-10. Minimum Margins for Different Cut Sheet Sizes
PW
(Paper
Width)
LM (Left Margin)
Set to right
Set to left
edge
edge
RM (Right Margin)
Set to right
Set to left
edge
edge
A4
3 mm
3 mm
3 mm
3 mm
297 mm
(0.12”)
(0.12”)
(0.12”)
(0.12”)
(11.87”)
Legal (L)
3 mm
5 mm
5mm
3 mm
356 mm
(0.12”)
(0.20”)
(0.20”)
(0.12”)
(14.0”)
B4 (L)
3 mm
16 mm
16 mm
3 mm
364mm
(0.12”)
(0.51”)
(0.51”)
(0.12”)
(14.3”)
A3 (L)
13 mm
25 mm
62 mm
50 mm
420 mm
(0.51”)
(0.98”)
(2.32”)
(1.85”)
(16.5”)
Ledger (L)
25 mm
25 mm
62 mm
62 mm
432 mm
(0.98”)
(0.98”)
(2.32”)
(2.32”)
(17.0”)
Note) 1. (L) : When the paper is placed in landscape orientation.
2. Printable are of label (cut sheet) is as same as cut sheet.
8
TM
(Top Margin)
BM
(Bottom
Margin)
3 mm
(0.12”)
14 mm
(0.54”)
3 mm
(0.12”)
14 mm
(0.54”)
3 mm
(0.12”)
14 mm
(0.54”)
3 mm
(0.12”)
14 mm
(0.54”)
3 mm
(0.12”)
14 mm
(0.54”)
Rev. A
Product Description
‰Envelope
RM
LM
TM
Printable area
BM
Figure 0-4. Printable Area for Envelopes
Table 0-11. Minimum Margin for Envelope
Rev. A
LM (Left Margin)
(minimum)
RM (Right Margin)
(minimum)
TM (Top Margin)
(minimum)
3 mm
(0.12”)
3 mm
(0.12”)
3 mm
(0.12”)
BM
(Bottom Margin)
(minimum)
14 mm
(0.55”)
9
EPSON Stylus COLOR 1520
‰Continuous Paper
Note) 1. Printable area of label (continuous) is as same as for continuous paper.
2. Base sheet of label (continuous) is not within the printing area.
More than
13 mm (0.51") *1
More than
13 mm (0.51") *1
More than
3 mm (0.12 ")
More than
12.5 mm (0.49")
Printable are 1
Printable area 2
More than
9 mm (0.35")
More than
9 mm (0.35")
Printable are 1
Perforation
Printable area 2
Printable area 2
More than
9 mm (0.35")
More than
9 mm (0.35")
Printable are 1
Perforation
Printable area 2
Printable are 1
More than
134 mm (5.28")
More than
14 mm (0.55")
Perforation
Perforation
Printable Area 1: Paper feed pitch is not guaranteed in this area.
Printable Area 2: Paper feed pitch is guaranteed in this area.
Perforation
*1 : When the paper width is more than 406.4 mm (16"), this width is more than
38 mm (1.50").
Figure 0-5. Printable Area for Continuous Paper
10
Rev. A
Product Description
1.2.7 Adjust Lever
The adjust lever , located at the left and upper side of the printer , is used to adjust the gap between the
paper and platen. The adjust lever must be set to the proper position the paper type in order to prevent the
paper from smudging.
Table 0-12. Adjust Lever Position
Paper
Type
Cut sheet
Transparency
Continuous paper
Index card
Envelopes
Lever
Position
Platen Gap Adjustment
Value
Far side (0)
0 mm
Near side (+)
+ 0.7 mm
Adjust lever
+
0
Figure 0-6. Adjust Lever Settings
Rev. A
11
EPSON Stylus COLOR 1520
1.2.8 Ink Specification
1.2.8.1 Black ink cartridge
Table 0-13. Black Ink Cartridge Specifications
Black Ink Cartridge
Exclusive ink cartridge
Black
900 pages / A4 (ISO/IEC10561 Letter Pattern at 360 dpi)
2 years from indicated production date
*1
At storage
: -20 •• to 40 ••
*1
At packing storage
: -30 •• to 40 ••
* 1 *2
At transit (Packed)
: -30 •• to 60 ••
Dimension
30 mm (W) X 58 mm (D) X 38.5 mm (H)
(1.22” X 2.36” X 1.57”)
*1 : Within a month at 40 ••
*2 : Within 120 hours at 60 •• for more than 120 hours.
Type
Color
Print capacity
Ink life
Storage Temperature
1.2.8.2 Color ink cartridge
Table 0-14. Color Ink Cartridge Specifications
Color Ink Cartridge
Exclusive ink cartridge
Magenta, Cyan, Yellow
300 pages A4 (at 360 dpi, 5 % duty each color)
2 years from indicated production date
*1
At storage
: -20 •• to 40 ••
*1
At packing storage
: -30 •• to 40 ••
* 1 *2
At transit (Packed)
: -30 •• to 60 ••
Dimension
42.9 mm (W) X 56.5 mm (D) X 38.5 mm (H)
(1.75”X 2.30” X 1.57”)
*1 : Within a month at 40 •• for more than a month.
*2 : Within 120 hours at 60 •• for more than 120 hours.
Type
Color
Print capacity
Ink life
Storage Temperature
Note)
1. The cartridge must not be refilled. Only ink cartridge is prepared for article of consumption.
2. Do not used the cartridge that has exceeded the ink life.
3. When the ink is frozen under -4°C, leave it for more than 3 hours at the room temperature to defrost
before using.
1.2.9 Input Data Buffer
‰Input data buffer
12
:64 Kbytes
Rev. A
Product Description
1.2.10 Electric Specifications
‰120 V version
„Rated voltage
:AC 120 V
„Input voltage range
:AC 103.5 to 132 V
„Rated frequency renege :50 to 60 Hz
„Input frequency range :49.5 to 60.5 Hz
„Rated current
:0.7 A (maximum)
„Power consumption
:Approximately 21 W (ISO/IEC 10561 Letter pattern)
Conforms to Energy Star program
„Insulation resistance
:10 M ohms min. (Between AC line and chassis, DC 500 V))
„Dielectric strength
:AC 1,000 V rms. (1 minute) or AC 1,200 V rms. (1 second)
(Between AC line and chassis)
‰220 - 240V version
„Rated voltage
„Input voltage range
„Rated frequency renege
„Input frequency range
„Rated current
„Power consumption
:AC 220 to 240 V
:AC 198 to 264 V
:50 to 60 Hz
:49.5 to 60.5 Hz
:0.4 A (maximum)
:Approximately 21 W (ISO/IEC 10561 Letter pattern)
Conforms to Energy Star program
:10 M ohms min. (Between AC line and chassis, DC 500 V)
:AC 1,500 Vrms. (1 minute) (Between AC line and chassis)
„Insulation resistance
„Dielectric strength
1.2.11 Environmental Conditions
‰Temperature
1
„Operating*
2
„Non operating*
:10•• to 35••
:-20•• to 40•• ( 1 month at 40••)
-20•• to 60•• (120 hours at 60••)
‰Humidity
1 3
„Operating* *
2 3
„Non operating* *
:20% to 80% RH (without condensation)
:5% to 85% RH (without condensation)
‰Resistance to vibration
„Operating
2
„Non-operating*
:0.15 G
:0.50 G
‰Resistance to shock
„Operating
2
„Non-operating*
:1 G within 1 ms
:2 G within 2 ms
*1 :Refer to the table below for guaranteed range.
*2 :In shipment container.
*3 :Without condensation
Humidity (%)
90
80
70
60
50
40
30
20
10 C
(50 H)
20 C
27 C 30 C
(80 H)
35 C
(95 H)
40 C
Temperature ( C )
Figure 0-7. Environmental Conditions
Rev. A
13
EPSON Stylus COLOR 1520
1.2.12 Reliability
‰Total print volume
‰Print head life
:75,000 pages (A4/Lletter)
:2,000 million dots /nozzle
1.2.13 Safety Approvals
‰120 V version
„Safety standards
„EMI
‰220 - 240 V version
„Safety standards
„EMI
:UL1950 with D3
CSA22.2 No. 950 with D3
:FCC part15 subpart B class B
:EN 60950 (TÜV, NEMKO)
:EN 55022 (CISPR Pub.22) class B
:AS/NZS 3548 class B)
1.2.14 CE Marking
‰220 - 240 V version
„Low Voltage Directive 73/23/EEC
„EMC Directive 89/336/EEC
:EN60950
:EN55022 class B
EN61000-3-2
EN61000-3-3
EN50082-1
IEC801-2
IEC801-3
IEC801-4
1.2.15 Acoustic Noise
‰Noise level
14
:Approximately 45 dB (A) (According to ISO 7779)
Rev. A
Product Description
1.3 Interfaces
1.3.1 Parallel Interface
1.3.1.1 Forward Channel Specifications
‰Transmission mode
‰Synchronization
‰Handshaking
‰Signal level
:8 bit parallel , IEEE-P1284 compatibility mode
:/STROBE pulse
:BUSY and /ACKNLG signal
:TTL compatible level (IEEE-P1284 Level 1 device)
Table 0-15. Signal level of TTL Compatible (IEEE-1284 level 1 device)
Parameter
Minimum
Maximum
Condition
VOH*
5.5 V
VOL*
-0.5 V
IOH*
0.32 mA
VOH = 2.4 V
IOL*
12 mA
VOL = 0.4 V
CO
50 pf
VIH
2.0 V
VIL
0.8 V
IIH
0.32 mA
VIH = 2.0 V
IIL
12 mA
VIL = 0.8 V
CI
60 pf
Note) * : A low logic level on the Logic H signal is as follows:
2.0 V or less when the printer is powered off.
3.0 V or more when the printer is powered on.
The receiver shall provide an impedance equivalent to 7.5 K ohm top ground.
‰Adaptable connector
:57-30360 (Amphenol) or equivalent
The BUSY signal is set high before setting either /ERROR low or PE high and held high until all these
signals return to the inactive state.
The BUSY signal is at high level in the following cases:
„During data entry (see Figure 0-8. Data Transmission Timing below.)
„When the input data buffer is full
„While /INIT signal is at low level or during hardware initialization
„During a printer error condition (See /ERROR signal)
„During test printing
„When the printer is in default setting mode
„When the parallel interface is not selected
The ERROR signal is at low level when one of the following errors has occurred:
„Printer hardware error (fatal error)
„Paper-out error
„Paper-jam error
„Ink-out error
The PE signal is high level during paper-out error.
DATA
DATA (n)
DATA (n+1)
STORBE
0.5 us (min.)
0.5 us (min.) 0.5 us (min.)
0 (min.)
BUSY
0 (min.)
ACKNLG
0 (min.)
5 us (type.)
Figure 0-8. Data Transmission Timing
Rev. A
15
EPSON Stylus COLOR 1520
Table 1-16 shows the connector pin assignment and signals for forward channel of the parallel interface.
Table 0-16. Data Transmission Timing
Parameter
Minimum
Maximum
tsetup
500 ns
thold
500 ns
tstb
500 ns
tready
0
tbusy
500 ns
tt-out*
120 ns
tt-in**
200 ns
treply
tack
500 ns
10 us
tnbusy
0
tnext
0
Note) * : Rises and falls in time of every output signals.
**: Rises and falls in time of every input signal.
Table 0-17. Connector Pin Assignments and Signals (Forward Channel)
Pin No.
Signal Name
Return
GND Pin
I/O
1
/STROBE
19
I
2-9
DATA 0-9
20-27
I
10
/ACKNLG
28
O
11
BUSY
29
O
12
PE
28
O
13
SLCT
28
O
14
31
/AFXT
/INIT
30
30
I
I
32
/ERROR
29
O
Description
The strobe pulse. Read-in of data is
performed at the falling edge of this pulse.
The data 0 to data 7 signals represent
data bits 0 to 7, respectively. Each signal
is at high level when data is logical 1 and
low level when data is logical 0.
This signal is a negative pulse indicating
that the printer can again accept data.
When this signal is at high level, the
printer is not ready to accept data.
When this sign is at high level, the paper
empty status is detected.
Always at high level when the printer is
powered on.
Not used.
The falling edge of a negative pulse or a
low signal on this line causes the printer to
initialize. Minimum 50 us pulse is
necessary.
When the printer detects an error, this
signal goes low.
Not used.
Pulled up to +5V via 3.9 K ohm resistor.
Pulled up to +5V via 3.3 K ohm resistor.
Chassis ground.
Signal ground.
Not connected.
36
/SLIN
30
I
18
Logic H
O
35
+5V
O
17
Chassis GND
16,33,19-30
GND
15,34
NC
Note) 1. */* at the beginning of a signal means active low.
2. The I/O column indicates the diction of the signal as viewed form the printer.
16
Rev. A
Product Description
1.3.1.2 Reverse Channel Specifications
‰Transmission mode
‰Adaptable connector
‰Synchronization
‰Handshaking
‰Data transmission timing
‰Signal level
:IEEE-1284 nibble mode
:Same as for the forward channel
:Refer to the IEEE-1284 specification
:Refer to the IEEE-1284 specification
:Refer to the IEEE-1284 specification
:IEEE-1284 level 1 device
See the forward channel specification.
Table 1-18 shows the connector pin assignment and signals for reverse channel of the parallel interface.
Table 0-18. Connector Pin Assignment and Signals (Reverse Channel)
Pin No.
1
2-9
Signal Name
I/O
Description
Clock signal from the host computer.
These signals represent parallel data
information on bits 2 to 9.Each signal is
High when the data is logical 1 and low
when the data is logical 0.
10
PtrClk
28
O
Clock signal from the printer
11
PtrBusy /
29
O
Busy signal from the printer.
Data bits 3,7
Data bit 3 or 7 in reverse channel.
12
AckDatareq /
28
O
Acknowledge request signal.
AckData Bits 2,6
Data bit 2 or 6 in reverse channel.
13
Xflag/Data bit 1,5
28
O
X flag signal.
Data bit 1 or 5 in reverse channel.
14
HostBusy
30
I
Busy signal from the host computer
31
/INIT
30
I
Not used
32
/Data Avail /
29
O
Data available signal.
Data bits 0,4
Data bit 0 or 4 in reverse channel.
36
1284-Active
30
I
1284 active signal.
18
Logic-H
O
Pulled up to +5V via 3.9 K ohm resistor.
35
+5V
O
Pulled up to +5V via 3.3 K ohm resistor.
17
Chassis GND
Chassis ground for the printer.
16,33,19-30
GND
Signalground.
15,34
NC
Not connected.
Note) The symbol */* at the beginning of a signal means active low.
‰Extensibility Request
The printer responds affirmatively when the extensibility request values are 00H or 04H, as follows:
00H
:Request Nibble Mode Reverse Channel Transfer.
04H
:Request Device ID;
Return Data Using Nibble Mode Rev Channel Transfer.
‰Device ID
The printer sends following device ID string when it is requested.
[00H] [xxH]
MFG :EPSON;
CMD :ESCP2E, PRPXL;
MDL
:Stylus COLOR 1520;
CLS
:PRINTER
Note) [00H] denotes a hexadecimal values of zero.
Rev. A
HostClk
DATA 0-7
Return
GND Pin
19
20-27
I
I
17
EPSON Stylus COLOR 1520
1.3.2 Mac Serial Interface
1.3.2.1 Serial Interface Specifications
‰Standard
‰Synchronization
‰Bit rate
‰Word format
‰Handshaking
‰Adaptable connector
‰Recommended I/F cable
:RS-423 compliance
:Synchronous
:Approximately 900 Kbps, 1.8 Mbps
:Start bit
1 bit
:Data bit
8 bit
:Parity bit
No parity bit
:Stop bit
1 bit
:X-ON/XOFF, DTR protocol
:8-pin mini circular connector
:Apple System Peripheral-8 cable
Table 0-19. Connector Pin Assignment for Serial Interface
Pin No.
1
2
3
4
5
6
7
8
Signal Name
SCLK
CTS
TxDS.G.
RxDTxD+
DTR
RxD+
I/O
O
I
O
I
I
O
O
I
8
Function Description
Synchronous clock
Clear to send
Transmit data Signal Ground
Receive data Balanced Transmit +
Data terminal ready
Balanced Receive +
6
7
5
4
2
3
1
Figure 0-9.
Serial Interface Connector Pin Assignment
Table 0-20. X-ON/X-OFF, DTR Protocol
State
Busy
Ready
18
Buffer space
Less than 1024 bytes
More than 2048 bytes
X-ON/X-OFF
Send X-OFF code
Send X-ON code
DTR
Off
On
Rev. A
Product Description
1.3.3 Optional Interface
The EPSON Stylus COLOR 1520 supports an optional Type-B interface (Level 2) with the following
characteristics.
‰Reply message
„When ESC/P2 is selected:
Main type
:MTP48p, PW136cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast
Product name :Stylus COLOR 1520
Emulation type :ESCPL2-00
Entity type
:EPSONLQ2
„When X24E is selected:
Main type
:MTP48p, PW136cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast
Product name :Stylus COLOR 1520
Emulation type :PRPXL24-00
Entity type
:EPSONPRPXL24
Table 0-21.Reply for Option Command
Option command No.
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h - 13h
14h
15h
16h - 1Fh
20h - FFh
command name
No Operation
Start Hard Ware Reset
Start Soft Ware Reset
Send Main System Type
Send Name Data
Inquire Name Data
Send Product Name
Send Soft Ware Emulation Type
Complete Buffered Data
Stop Procedure
Return Buffered Data
Send Entity Type
Send Status
Quit Procedure
Inquire ASCII Message
Send ASCII Message
Inquire Emergency Message
Send Emergency message
Reply-A
Accept
Accept
Reject
Accept
Reject
Accept
Accept
Accept
Accept
Reject
Reject
Accept
Accept
Reject
Reject
Accept
Unknown
Accept
Accept
Unknown
Reserved
Reply-B
None
Excute OK
Check Condition
Execute OK
None
None
Execute OK
None
None
Table 0-22. Supported Main Command and Sending Timing
Main Command No.
01h
04h
07h
0Eh
14h
15h
Command name
Start Software Reset
Send Name Data
Inquire Software Emulation Name
Inquire ASCII Message
Inquire Emergency Reply
Send Emergency Message
Sending Timing
„
/INIT signal on the std. parallel I/F
„
Type-B I/F option command : 01h
„
Cold Start
„
Type-B I/F command : 05h
„
Changing software Emulation Type
„
Writing to DBIN register
„
Reply for Emergency command
„
Receive Emergency Command
‰Emergency Command
0X00 :Get device ID
0X01 :Get all status
‰Sending BDC-ST through DBIN register
When State-Reply is set “ON”, by ST from Type-B I/F, sending BDC-ST through DBIN register is
started. When State-Reply is started, “Start” and “End” of BDC-ST characters are announced by
sending the Main command 0Eh.
Rev. A
19
EPSON Stylus COLOR 1520
1.3.4 Prevention Hosts from Data Transfer Time-out
Generally, hosts abandon data transfer to peripherals when a peripheral is in the busy state for dozens of
seconds continuously. To prevent hosts from this kind of time-out, the printer receives data very slowly,
several bytes par minute, even the printer is in busy state. This slowdown starts when the rest of input
buffer drops under several hundreds of bytes. Finally, the printer is in the busy state continuously when the
input buffer is full.
1.3.5 Interface Selection
The EPSON Stylus COLOR 1520 has three types of interface available :Parallel, Serial, and optional
interfaces. Each interface can be selected manually or automatically. Both modes are selected thorough
the default setting mode.
‰Manual selection
The interface selected through the default setting mode always prints out data from the host.
‰Automatic selection
When the printer is in this mode, the printer is initialized to the idle state when it is turned on. Then the
interface that receives data first will print. When the host stops data transfer and the printer is in the
stand-by state for the specific time, the printer returns to the idle state. As long as the host sends data
or the printer interface is buy state, the selected interface remains active.
Interface State and Interface Selection
When the parallel interface is not selected, the interface goes into the busy state. When the serial
interface is not selected, the interface sets the DTR signal MARK. When the printer is initialized or
returned to the idle state, the parallel interface goes into the ready state and the serial interface sets the
DTR signal SPACE. Caution that the interrupt signal such as the /INIT signal on the parallel interface is
not effective while that interface is not selected.
1.3.6 Printer language and Control Codes
‰Printer languages and control codes
20
:ESC/PC
:IBM X24E
:EPSON Remote
Rev. A
Product Description
1.4 Operation
This section describes the controls, settings and adjustment used to operate the EPSON Stylus COLOR
1520.
1.4.1 Control Panel
The control panel of this printer consists of 6 non-lock push switches, 1 lock type push switch, and 6 LED
indicators for easy operation of the various printer functions. Refer to
Figure 0-10 for button and LEDs descriptions and how they are arranged.
(1) (2)
(3) (4)
Operate
Ink Out
Cover Open
Ink Out
(5)
Alt
Paper Out
LF/FF
5sec
(6)
Micro Feed
Micro Feed
Cleaning
Reset
Load/Eject
Cleaning
Figure 0-10. Control Panel Appearance
‰Indicators
(1) Cover Open
(2) Operate
(3) Ink Out (Black)
(4) Ink Out (Color)
(5) Paper Out
(6) Pause
Rev. A
21
EPSON Stylus COLOR 1520
‰Panel Functions
:The function of each button is described below.
1
„Power
Function
Available condition
:Turns the printer off or on * .
:Always
„Load/Eject
Function
Available condition
:Loads and ejects the paper.
:Pause/Stand-by
„LF/FF
Function
Available conditions
:Feeds one line or page.
:Pause / Stand-by
„Pause
Function
Available conditions
:Alternates the printer state between printing and nonprinting.
:Pause / Stand-by
Function
Available condition
: Pressing this button for 3 seconds resets the printer.
:Pause / Stand-by
„Micro-adjust ↑ Function
Available conditions
„Micro-adjust ↓ Function
Available conditions
:Feeds paper forward and is used to execute TOF
3
2
adjustment * and Tear off adjustment * .
:Pause / Stand-by
2
:Feeds paper backward and performs TOF adjustment *
3
and Tear off adjustment * .
:Pause / Stand-by
„Cleaning (Black)
Function
Available condition
:Executes the black ink cartridge cleaning.
:Pause
„Cleaning (Color)
Function
Available condition
:Executes the color ink cartridges cleaning.
:Pause
„Alt
Function
Available conditions
:Enters ink cartridge change mode. Pressing this button
for 3 seconds moves the ink cartridge to the position to
be replaced.
:Pause / Ink out
Note)
1. Before the printer power is off, the printer executes the capping function.
2. When the micro adjust is performed at the TOF (Top Of Form position) for the ASF manual and
tractor feed, the new setting is stored in the corresponding address in the EEPROM.
3. When the micro adjust is performed at the tear off position, the new setting is stored in the
corresponding address in the EEPROM
CAUTION
;The power switch is connected to the secondary side of the electrical circuit. Since it has a delay
circuit, voltage is still applied for the specified period of time after the printer power is off.
;As long as the printer is plugged in, voltage is applied to the primary side of the electrical circuit.
Therefore be sure to unplug the printer before servicing or replacing the interface.
22
Rev. A
Product Description
1.4.2 Panel Functions at Power On
This printer also enters various functions by turning on the printer while holding down a button
( buttons). Each combination and corresponding function is described in the table below.
Table 0-23. Panel Functions at Powered On
1
Function
Switch *
(while turning on the printer)
Enters default setting mode. (See Section 1.4.4.)
Micro adjust ↓
Pause
Enters printer adjustment mode. (See Section 1.4.5.)
Load /Eject
Enters LQ self-test printing mode.
LF/FF
Enters draft self-test printing mode.
LF/FF + Load/Eject
Enters hex-dump mode.
2
Alt + LF/FF + Load/Eject
Enters EEPROM and Timer IC reset * mode.
+ Micro adjust ↑
Note) 1.”+” means to press one button while holding down the other button(s).
2.EEPROM and Timer IC must be reset only by qualified service personnel.
CAUTION
When performing EEPROM reset operation, waste ink drain pads must be replaced. Therefore
EEPROM reset is to be performed by a qualified service person only. (See Chapter 3.)
Rev. A
23
EPSON Stylus COLOR 1520
1.4.3 Printer Condition and Panel Status
This printer has several printer conditions that are indicated by the LEDs on the control panel When any of
the errors listed below occurs, the printer indicates an error condition and the /ERROR signal goes “Low”
and Busy signal goes “High” to stop data transfer. This condition automatically puts the printer into
“Pause” status.
„The carriage moves abnormally. (Fatal error)
„Paper out or Paper jam condition is detected.
„The PG for the paper currently loaded is inaccurate.
„No ink cartridge or Ink end condition is detected.
„Maintenance is required.
Table 0-24. Printer Condition and Panel Status
Printer status
Power
Cover Open
Indicators
Ink out
Ink out
(black)
(color)
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
On
„Ÿ
Paper Out
Pause
Power on
On
„Ÿ
„Ÿ
„Ÿ
Cover open
„Ÿ
On
„Ÿ
„Ÿ
Paper out
„Ÿ
„Ÿ
On
„Ÿ
Paper jam
„Ÿ
„Ÿ
Blinks
„Ÿ
No ink cartridge or
„Ÿ
„Ÿ
„Ÿ
„Ÿ
ink end (black)
Ink level low (black)
„Ÿ
„Ÿ
Blinks
„Ÿ
„Ÿ
„Ÿ
No ink cartridge or
„Ÿ
„Ÿ
„Ÿ
On
„Ÿ
„Ÿ
ink end (color)
Ink level low (color)
„Ÿ
„Ÿ
„Ÿ
Blinks
„Ÿ
„Ÿ
Enter EEPROM and
On
On
On
On
On
On
Timer IC reset
1 second
1 second
1 second
1 second
1 second
1 second
Maintenance request
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
Fatal error
„Ÿ
Blinks
„Ÿ
„Ÿ
„Ÿ
Blinks
Lever error
„Ÿ
„Ÿ
„Ÿ
„Ÿ
Blinks
Blinks
Capping function in
Blinks
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
the power off
Data exit
Blinks
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
In the sequence of
ink cartridge change
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
Blinks
mode
Default setting mode
Blinks
„Ÿ
„Ÿ
„Ÿ
„Ÿ
„Ÿ
Note)
1. “” means no effect.
2. Fatal error is cleared by turning off and back on the printer or by inputting the /ITIT signal after the
problem is solved.
3. Maintenance is required when the wasted ink drain pads are filled with the wasted ink to the specified
limit. On this condition servicing is needed. To clear the condition, perform EEPTOM reset operation.
(See Section 1.4.2 “Panel function at power on”) Refer to Chapter 2 or Chapter 3.
24
Rev. A
Product Description
1.4.4 Cover Open Sensor Operation
The cover open sensor equipped with this printer controls the carriage movement which has a possibility
to hurt the user. The sensor performs followings:
‰The printer cover opens during printing:
„
The CR returns to the home position slowly after executing printing for the current pass. The cover
open LED lights up and the printer goes into the stand-by status.
„
To recover, close the cover and press the pause button to continue to print. The cover open LED
goes off with the recovery.
‰The printer cover opens during cleaning:
„
The printer completes the cleaning sequence. If the cover is still open after the cleaning, the cover
open LED lights up and the printer goes into the stand-by status.
„
To recover, close the cover and press the pause button to continue to print. The cover open LED
goes off with the recovery.
‰The printer cover opens While the printer is in the stand-by status:
1
„
The cover open LED lights up and the printer stops functioning. *
„
To recover, close the printer cover.
*1 :The interface is in the Busy status and the switches on the control panel are effective.
1.4.5 Default Setting
This printer has user-selectable default settings to which it refers at initialization. This section describes
setting method and setting menus.
1.4.5.1 Setting Method
See the flow chart in Page 1-26 for the default setting method.
CAUTION
;Be sure to turn off the printer off once after the default setting operation is executed, since
adjustment values are not stored in the EEPROM until the printer is turned off.
;The latest adjustment values set before power-off are stored in the EEPROM.
Rev. A
25
EPSON Stylus COLOR 1520
Start
Press the Pause button, and turn
on the printer.
The printer prints the instruction
sheet on how to select the language.
1.Move through the languages listed
by pressing the alt button.
2.Select the language by pressing
the Pause button.
The printer prints the instruction
sheet on how to adjust the printer.
Adjust a patterns ?
YES
1. Select the appropriate test by
pressing the Alt button.
2. Press the Load/Eject button.
The printer prints the test patterns.
NO
Select the most closely aligned pattern
by pressing the Pause button.
Press the Load/Eject button.
More adjustment ?
YES
NO
Turn the printer off once to save the new settings into the EEPROM.
Figure 0-11. Default Setting Flow Chart
26
Rev. A
Product Description
1.4.5.2 Setting Menus
The default setting menus are described in the table below.
Table 0-25. Default Setting Menu
Menu
2
Print direction*
Font
Setting *
1
Auto / Bi-d / Uni-D
Roman / Sans Serif / Courier / Prestige / Script/
Roman T / Sans Serif H / Draft
Pitch
10 cpi / 12 cpi / 15 cpi / 17.1 cpi / 20 cpi / Proportional
I/F mode
Auto / Parallel / Mac Serial / Option
Auto I/F wait mode
10 seconds / 30 seconds
Software
ESC/P2 / IBM X24E
Auto CR (IBM mode only) On / Off
AGM (IBM mode only)
On / Off
Character tables
Italic
Standard version
PC 850
PC 437,
PC 860,
PC 863
PC 865,
PC 861
BRASCII,
Abicomp
Roman 8,
ISO Latin 1
PC 437 (Greek),
PC 853
PC 855,
PC 852
PC 857,
PC 866
PC 869,
MOZOAWIA
Code MJK,
ISO 8559-7
ISO Latin 1T,
Bulgaria
PC 774,
Estonia
ISO 8859-2,
PC 866 LAT
International character set Italic USA,
Italic France
for Italic table
Italic Germany,
Italic U.K
Italic Denmark,
Italic Sweden
Italic Italy,
Italic Spain 1
Auto line feed
On / Off
Network I/F mode
This mode is for network environment.
Off: Used in usual environment
On: Used in network environment
0 slash
0 / 0 with slash
Page length
11 inch / 12 inch / 8.5 inch / 70/6 inch / other
Skip over perforation
On / Off
Auto tear off
On / Off
3
Banner mode *
On / Off
Parallel I/F transfer rate
Fast / Normal
Note) 1. Underlined parameters in bold letter are factory default settings.
2. Refer to Table 1-26 and Table-27.
3. Refer to Table 1-28..
Rev. A
27
EPSON Stylus COLOR 1520
Table 0-26. Print Direction Mode Characteristics
Auto
Bi-D
Uni-D
Black and White Printing
y Throughput and quality is better.
YMCK Printing (color)
y Throughput is better.
y Color quality with special paper is
worse.
(Color correction depends on the print
direction.)
y Throughput is the best.
y Color quality with special paper is worse.
(Color correction depends on the print
direction.)
y Throughput is worse.
y Color quality is the best.
y Throughput is the best.
y Print quality may be down.
y Throughput is worse.
y Print quality is the best.
Table 0-27. Printing Direction and ESC U Command
Auto
Default
Setting Mode
Bi-D
Uni-D
ESC U 0
ESC U 1
ESC U 2

ESC U 0
ESC U 1
ESC U 2

ESC U 0
ESC U 1
ESC U 2

Character Mode
(for DOS)
Auto
Auto
Auto
Auto
Bi-D
Uni-D
Auto
Bi-D
Uni-D
Uni-D
Uni-D
Uni-D
Taster Graphics Mode
(for Windows / Mac)
Bi-D
Uni-D
Auto
Auto
Bi-D
Uni-D
Auto
Bi-D
Bi-D
Uni-D
Auto
Uni-D
Table 0-28. Vertical Print Position in the manual Insertion
Function
Trigger
ESC EMR
FF
Banner mode Off
(manual insertion operation)
1. Case that page length is set
by ESC (C
→ Eject
2. Case that page length is not
set by ESC (C
→ Advances to the topmargin of the next page
No operation
Eject
Eject
Eject (maximum 44 inches)
Over the page length
set by command
1. Case that page length is set
by ESC (C
→ Eject
2. Case that page length is not
set by ESC (C
→ No operation
Eject
Command FF
Switch
Data
Over the paper
length
28
Banner mode On
Advances to the top-margin position
of the next page.
No operation
Advances to the top-margin position
of the next page.
Advances to the top-margin position
of the next page.
No operation
Eject
Rev. A
Product Description
1.4.6 Printer Adjustment Mode
The EPSON Stylus COLOR 1520 allows users to adjust the printing direction and head gap without a
special program. The following chart shows the adjustments method .
1.4.6.1 Adjustment Method
Start
Press the Pause button, and turn
on the printer.
The printer prints the instruction
sheet on how to select the language.
1.Move through the languages listed
by pressing the alt button.
2.Select the language by pressing
the Pause button.
The printer prints the instruction
sheet on how to adjust the printer.
Adjust a patterns ?
YES
1. Select the appropriate test by
pressing the Alt button.
2. Press the Load/Eject button.
The printer prints the test patterns.
NO
Select the most closely aligned pattern
by pressing the Pause button.
Press the Load/Eject button.
More adjustment ?
YES
NO
Turn the printer off once to save the new settings into the EEPROM.
Figure 0-12. Printer Adjustment Flow Chart
1.4.6.2 Adjustment patterns
Table 0-29. Printer Adjustment Patterns
Pattern
Pattern 1
Pattern 2
Pattern 3
Pattern 4
Pattern 5
Rev. A
Menu
Uni-dir adjustment at 400 cps (with an increment of 1/1,440 inch)
Bi-dir adjustment at 400cps (with an increment of 1/1,440 inch)
Bi-dir adjustment at 200cps (with an increment of 1/1,440 inch)
Head gap adjustment between black and color to the cross feed
direction at 200 cps (with an increment of 1/720 inch)
Head gap adjustment between black and color to the cross feed
direction at 100 cps (with an increment of 1/720 inch)
29
EPSON Stylus COLOR 1520
1.4.7 Printer Initialization
This printer has three initialization types: Power-on initialization, Operator initialization, and Software
initialization.
‰Power-on Initialization
This printer is initialized when turning on the printer. Then the printer recognizes the cold reset command
(Remote RS command). When the printer is initialized, following actions are performed:
„ Initialize the printer mechanism.
„ Clears input data buffer.
„ Clears download character set.
„ Clears print buffer.
„ Sets default values.
‰Operator Initialization
This printer is initialized when Pause button is pressed for 3 seconds, or the printer recognizes the /INIT
signal (negative pulse) of parallel interface. When the printer is initialized, following actions are performed:
„ Clears input data buffer.
„ Clears download character set.
„ Clears print buffer.
„ Sets default values.
‰Software Initialization
This initialization is performed by the ESC @ commend and the following actions are performed:
„ Clears print buffer.
„ Sets default values.
1.4.8 Self-test Printing Mode
This printer has the self-test printing mode. Following items are checked by performing this mode.
„Function for the control circuit board
„Function for the printer mechanism
„Print quality
The printer enters the LQ self-test printing mode by pressing the Load/eject button while turning on the
printer. To enter the draft self-test printing mode by pressing the LF/FF button while turning on the printer.
1.4.9 Hexadecimal Dump Function
Pressing the LF/FF and Load/Eject buttons while turning on the printer activates the hexadecimal dump
mode. Each line has Hexadecimal codes, along with their corresponding letters printed in the right
column. If a received code denotes an unprintable character. Such as a control code, “.” (period) is printed
in the right column. This function enables users to check whether the data from the host is properly
transferred. Turn off the printer to exit the mode.
1.4.10 Monochrome Printing Mode
When the printer is in the ink end (color) condition, the black ink is substituted to continue to work. In order
to switch to monochrome printing mode, turn the printer off and back on. This mode is also selected by
the command “ESC (K)“. The Color select command “ESC r” is ignored in this mode.
30
Rev. A
Product Description
1.5 Physical Specification
‰Weight
‰Dimension
:6.5 Kg
:666 mm (W) X 554 mm (D) X 202 mm (H)
(26.2” X 21.8” X 7.9”)
Refer to Appendix for details.
Rev. A
31
EPSON Stylus COLOR 1520
1.6 Main Components
The main components of the EPSON Stylus COLOR 1520 are designed for easy removal and repair.
They are as follows:
‰Main control board
‰Power supply board
‰Control panel bard
‰Printer mechanism
‰Housing
:C211 MAIN Board
:C172 PSB/PSE Board
:M-4160
1.6.1 C211 MAIN Board
This board consists of a 16-bit CPU (IC7) (clock wave : 19.66Mhz), gate arrays B05B33 (IC8) and B05B34
(IC6), PROM (IC14), MROM (IC12), DRAMs (IC9, 10), RESET ICs (IC1, 4), EEPROM (IC2), two motor
drive ICs, printhead drive circuit, and so on.
PROM 8M
Serial Interface IC
Lithium Battery
Timer IC
CPU
Printhead Common Drive Circuit
Gate Array E05B33
PF Motor Drive IC
Gate Array E05B34
MROM
DRAM 4M
Reset IC
EEPROM
CR Motor Drive IC
Figure 0-13. C211 MAIN Board Component Layout
32
Rev. A
Product Description
1.6.2 C172 PSB/PSE Board
This board consists of a transformer, switching FET, regulator IC, diode bridge, fuse, and so on.
Fuse
Regulator IC
Diode Bridge
Transformer
Switching FET
Figure 0-14. C211 PSB/PSE Board Component Layout
Rev. A
33
Chapter 2
Operating Principles
2.1. Overview...............................................................................................................2-1
2.2. Printer Mechanism Operating Principle ............................................................2-1
2.2.1.1. M-4I60 Printer Mechanism ....................................................................................... 2-1
2.2.2. Printing Mechanism .............................................................................................................. 2-2
2.2.2.1. Printhead Structure .................................................................................................. 2-2
2.2.2.2. Printing Process ....................................................................................................... 2-3
2.2.2.3. Printing Methods....................................................................................................... 2-3
2.2.3. Carriage (CR) Mechanism..................................................................................................... 2-5
2.2.4. Paper Feed Mechanism......................................................................................................... 2-6
2.2.4.1. ASF (Auto Sheet Feeder) Mechanism ..................................................................... 2-7
2.2.4.2. Tractor Mechanism................................................................................................... 2-8
2.2.4.3. Manual Feed Mechanism ......................................................................................... 2-8
2.2.5. Platen Gap (PG) Adjust Mechanism .................................................................................... 2-9
2.2.6. Ink System............................................................................................................................ 2-10
2.2.6.1. Pump Mechanism....................................................................................................2-11
2.2.7. Capping Mechanism............................................................................................................ 2-14
2.2.7.1. Wiping/CR Lock Mechanism .................................................................................. 2-15
2.3. Electrical Circuit Operation Principles ............................................................2-16
2.3.1. C172 PSB/PSE Electrical Circuit Board............................................................................. 2-16
2.3.2. C211 MAIN Control Board ................................................................................................... 2-18
2.3.2.1. Reset Circuits ......................................................................................................... 2-20
2.3.2.2. Sensor Circuits ....................................................................................................... 2-20
2.3.2.3. CR Motor Driver Circuits ........................................................................................ 2-22
2.3.2.4. PF Motor Driver Circuit........................................................................................... 2-23
2.3.2.5. Printhead Driver Circuit .......................................................................................... 2-24
2.4. Ink System Management...................................................................................2-27
2.4.1. Ink System Operations........................................................................................................ 2-27
2.4.2. Counters ............................................................................................................................... 2-28
Operating Principles
2.1 Overview
This chapter describes the operating principle of the printer mechanism and electrical circuit.
2.2 Printer Mechanism Operating Principle
2.2.1.1 M-4I60 Printer Mechanism
This printer is composed of the printhead unit, paper feeding mechanism, CR mechanism and the pump
mechanism. The block chart for the printer mechanism is shown in Figure 2-1. The printer mechanism of
this printer has 2 motors: CR motor and PF motor. The torque from the CR motor moves the CR in the
column direction. The torque from the PF motor is transmitted to 2 ways: to the paper feeding mechanism
and to the pump mechanism. The direction is determined by the CR position. The release lever transmits
the torque from the PF motor to the tractor side to feed continuous paper.
Release Lever
Disengage Mechanism
Push Tractor Mechanism
PF Motor
Paper Feed Mechanism
ASF Mechanism
(For Cut sheet only.)
`Pump Mechanism
CR Motor
CR Unit
Black
Color
Figure 2-1. Printer Mechanism Block Diagram
Rev. A
2-1
EPSON Stylus &2/25 1520
2.2.2 Printing Mechanism
The printing method used for this printer is On-demand ink jet, same as for other EPSON ink jet printers.
The new method used for the printhead enables the printer to produce output in high quality at a higher
speed. The printing mechanism has 2 parts: ink cartridge and printhead. The ink cartridge is filled with ink.
2.2.2.1 Printhead Structure
The printhead for this printer has the black head and color head. The structures of the printheads are
basically the same except for the nozzle configuration. The black head, used for the black ink only, is
composed of 128 nozzles (32 nozzles for each of 4 rows) The color head, composed of 3 heads for
Magenta, Cyan, and Yellow, has 64 nozzles (32 nozzles for each of 2 rows) for each color.
Printhead Driver Circuit Board
To the ink cartridge.
Nozzle Plate
Piezo
Cavity
Nozzle
Figure 2-2. Printhead Structure
2-2
Rev. A
Operating Principles
2.2.2.2 Printing Process
Steps bellow describe how the ink is ejected from each nozzle with the on-demand ink jet system.
<Step 1> Normal state
No print signal is applied to the PZT. In this state, the PZT does not displace and no pressure is added
inside the cavity. Therefore the pressure in the cavity is kept at a constant level.
<Step 2> Ejecting state
Print signal is applied to a specific nozzle by the head driver circuit to drive the PZT of the nozzle. The
voltage which drives the PZT is produced in the common driver circuit board on the control board. When
the voltage is applied to the PZT, the PZT displaces and the pressure in the cavity changes. Then the ink
is ejected as a result.
Ejecting State
Normal State
Nozzle
Cavity
Piezo
Ejected Ink
Figure 2-3. Printing Operation States
When no print signal is applied to the PZT, the PZT recovers from the displaced status. With this process,
the cavity also returns to its normal size, which brings the pressure negative. The negative pressure in the
cavity then absorbs the ink from the cartridge to fill the cavity with the ink again for the next printing
motion. The ink which was not used for printing adheres on the nozzle surface and increases viscosity in
the nozzles, and it causes printing malfunction. Therefore the ink is periodically absorbed and wasted into
the waste ink drain pads by the pump mechanism. Ink viscosity varies depending on the temperatures
around the head. Since the change in the ink viscosity causes decreas in the print quality, the thermistor is
attached to the black head driver circuit board to control the drive voltage at the proper level referring to
the detected head temperature.
2.2.2.3 Printing Methods
This printer has following special printing modes to print various types if graphic image.
‰Double Firing Normal dot / One dot printing mode
This printer forms 1 dot with double ink ejections in the ANK or bitmap image mode. In the raster
graphics mode which requires a high-resolution-printing, however, forms 1 dot with a single ink
ejection.
‰EPSON Micro dot printing
Both black and color printings can be performed in the normal dot printing mode and EPSON micro
dot printing mode. In the normal dot printing mode, the printer uses less ink to create sharper dots.
Therefore the gradation range is expanded with more delicate tone. This mode is available when the
1440X720-dpi-paper or glossy film is selected.
‰Micro Weave Printing
In this mode, nozzles to be activated are divided and only specific nozzles are used for each pass.
The paper is also fed in a smaller increment for this operation. This mode eliminates white banding
that occurs between lines to improve graphic images. Decrease in paper feed speed is, however,
inevitable. The Micro Weave printing can be selected through the printer driver.
Rev. A
2-3
EPSON Stylus &2/25 1520
Table 2-1. Special Printing Availability
Paper Type
180 dpi
Black printing for the raster data
360 dpi

exclusive paper
360 dpi
720 X 360 dpi
720 dpi
1440X720 dpi

1 dot printing
Normal dot
Micro Weave


1 dot printing
Normal dot
Micro Weave

1 dot printing
Normal dot
Micro Weave

1 dot printing
Normal dot
Micro Weave

1 dot printing
Normal dot
Micro Weave



1 dot printing
Normal dot
Micro Weave

1 dot printing
Normal dot
Micro Weave

1 dot printing
Normal dot
Micro Weave

1 dot printing
Normal dot
Micro Weave



720 dpi
exclusive paper


OHP sheet

Glossy film
Glossy paper

2 dot printing
Normal dot
Micro Weave


2 dot printing
Normal dot
Micro Weave
1 dot printing
Normal dot
Micro Weave

1 dot printing
Normal dot
Micro Weave
Normal paepr
2 dot printing
Normal dot
Micro Weave
Color printing for the raster data
360 dpi

exclusive

720 dpi
exclusive


OHP sheet

Glossy film
Glossy paper

2 dot printing
Normal dot
Micro Weave

Normal paepr
2 dot printing
Normal dot
2 dot printing
Normal dot
1 dot printing
Normal dot
Micro Weave
For ANK, Bitmap image data
360 dpi
2 dot printing
exclusive
Normal dot
2 dot printing
Normal dot

2-4


Rev. A
Operating Principles
2.2.3 Carriage (CR) Mechanism
The CR mechanism is composed of the CR unit, timing belt, CR guide shaft, paper eject frame, HP
sensor (Home Position sensor) and CR motor. The CR motor sends torque to the timing belt to move the
CR unit in the both right and left directions along the paper eject frame and CR guide shaft. A stepping
motor used for the CR motor enables the CR unit to move and stop at any position. The CR is primarily
detected at the home position by HP sensor when the printer is turned on and its position is then
controlled by the open loop. Table 2-2 and Table 2-3 show the specification for the CR motor and the CR
motor drive terms, respectively.
Table 2-2 CR Motor Specification
Item
Motor type
Drive voltage
Coil resistance
Excitation mode
Drive frequency
Minimum step
Description
4-phases / 200-pole / HB type stepping motor
42 VDC ± 5% (The voltage applied to the driver)
5 Ω ± 7% (at 25° C per 1 phase)
Unipolar drive
1-2 phase, 2w1-2 phase : Constant current drive
480 ~ 9600 Hz
0.106 mm (1-2 phase drive)
0.026 mm (2W1-2 phase drive)
Table 2-3 CR Motor Drive Terms
Print
mode
Draft
LQ
SLQ
Print speed
400 cps
200 cps
100 cps
Acceleration
1
0.96
0.96
0.90
Acceleration
2
0.96
0.96
0.90
Constant
0.70
0.70
0.60
CR Motor
Deceleration
1
0.70
0.80
0.80
Deceleration
2
0.70
0.80
0.80
Pulley
CR Unit
Timing Belt
HP Sensor
Sub Pulley
Paper Eject Frame
CR Guide Shaft
Figure 2-4. CR Mechanism
Rev. A
2-5
EPSON Stylus &2/25 1520
2.2.4 Paper Feed Mechanism
The paper feed mechanism of this printer consists of the integrated ASF (Auto Sheet Feeder) mechanism,
tractor mechanism, PF (Paper Feed) motor, front/rear PE (Paper End) sensors, PF roller, paper guide
mechanism, paper eject unit, and PF motor drive disengage mechanism. The torque from the PF motor
drives the paper load mechanism, paper feed mechanism and paper eject mechanism. While the printer
is not printing, the PF motor drive disengage mechanism switches the torque from the PF motor to the
pump mechanism, which depends on the CR position. While the paper feed mechanism is driven, the
torque from the PF motor is transmitted via PF motor pinion gear and disengage gear to the PF roller.,
where the torque is then divided into 2 directions. One is transmitted to the paper eject mechanism via the
gear train in the paper guide assembly. The other is transmitted to the ASF mechanism via the
transmission gear.
The tractor drive gear train is set at the left end of the PF roller. Table 2-4 and Table 2-5 shows the
specification for the PF motor and PF motor drive terms, respectively. Figure 2-5 illustrates the paper feed
mechanism.
Table 2-4 PF Motor Specification
Item
Motor type
Drive voltage
Coil resistance
Connection
Excitation mode
Minimum step
Description
4-phases / 96-pole / HB type stepping motor
42 VDC ± 5% (The voltage applied to the driver)
10 Ω ± 10% (at 25° C per 1 phase)
Bipolar
2-2 phase, 1-2 phase, W1-2 phase constant current drive
1/720 inch / step (2-2 phase drive)
Table 2-5 PF Motor Drive Terms
Operation
Acceleration
Constant
mode
Paper feed
0.9/0.9
0.9
/LQHIHHGLQFK
ASF Feed
0.9/0.9
0.9
Pump driven
0.9
 /0.9
Pump driven
0.9
/
(slow)
Note) Double 1-2 phase drive / 2-2 phase drive
Deceleration
Stand-by
0.75/0.75
0.6
0.75/0.75
0.9
/
0.6
0.6
0.6
PF Motor
Tractor Disengage Gear
PF Motor Pinion Gear
To the tractor
mechanism.
Disengage Gear
To the ASF
mechanism.
ASF
Transmission Gear
PF Drive Roller
Paper Eject Roller Shaft
Pump Mechanism
Paper Eject Roller Unit
Paper Eject Roller Shaft
Figure 2-5. Paper Feeding Mechanism
2-6
Rev. A
Operating Principles
2.2.4.1 ASF (Auto Sheet Feeder) Mechanism
Torque from the PF roller is transmitted to the pick up roller in the ASF mechanism via the planetary gear
by the PF motor drive disengage mechanism which switches the torque based on the detected position of
the CR unit. The pick up roller shaft has 2 arms on the right and left ends. The arms push down the paper
support to make the paper surface contact with the pick up roller. The one way clutch rotates the puck up
roller in the specified direction to load paper. The paper loaded is then fed by the paper feed mechanism
and the gear transmission from the planetary gear is disengaged.
One Way Clutch
ASF Mechanism
Pickup Rollers
Pinion Gear
Disengage Gear
PF Motor
Paper
Arm
ASF transmission Gear
Front PE Sensor
Paper Support
PF Roller
Figure 2-6. ASF Mechanism
Rev. A
2-7
EPSON Stylus &2/25 1520
2.2.4.2 Tractor Mechanism
Torque sent from the PF motor to the gears at the left end of the PF roller is transmitted to the tractor
gears via disengage mechanism by the release lever operation. When the release lever is set to the
tractor side, the release sensor detects the position and the torque from the ASF mechanism is
disengaged consequently.
Tractor Disengage Gear
Release Lever
PF Motor
Rear PE Sensor
PF Motor Pinion Gear
PF Roller
Disengage Gear
Figure 2-7. Tractor Mechanism
2.2.4.3 Manual Feed Mechanism
The printer loads cut sheet and roll paper at the rear paper slot. While paper is detected by the rear PE
sensor, the CR unit is off the ASF paper feed position. Therefore paper is manually loaded even if there is
paper in ASF. This mode allows the use of paper which is not set in ASF.
2-8
Rev. A
Operating Principles
2.2.5 Platen Gap (PG) Adjust Mechanism
The PG adjust mechanism, located at the top right of the printer mechanism, allows the user to set the
proper platen gap (distance between paper and nozzle surface) for the paper thickness to prevent ink
smudging. The PF Adjustment mechanism consists of the PG adjust lever, CR guide shaft, and
parallelism adjust bushings. Shifting the lever from “0” to “1” turns the CR guide shaft that joins to the
lever. The joint for the parallelism adjust bushing and CR guide shaft has an eccentricity toward the guide
shaft, which moves the guide shaft from or toward the platen. With this movement, the platen gap
changes from wide to narrow or vice versa.
Table 2-6. Platen Adjust Lever positions
Paper Type
Cut Sheet, OHP Sheet,
Label, Continuous paper
Envelope ,Card, Index card
Adjust lever Position
Rear
PG Adjustment Value
0
Front
+ 0.7 mm
PG Adjust Lever
0
+
Parallelism Adjust Bushing
Printhead
Platen Surface
Platen Gap
Eccentricity
CR Guide Shafts
Figure 2-8. Platen Gap Adjustment Mechanism
Rev. A
2-9
EPSON Stylus &2/25 1520
2.2.6 Ink System
The ink system for this printer is composed of the following mechanisms.
„Ink cartridge
„Pump mechanism
„Capping mechanism
„Waste ink drain pads
„Wiping mechanism
Figure 2-9 shows the block chart of the ink system.
Color Ink Cartridge
Black Ink
Cartridge
Cleaner Head for
Black and Color Inks
PF Motor
Clutch Unit
Combination Gear
Disengage Gear
Air Valves
Pump 1
Pump Unit
Gear
Pump 2
Waste Ink Drain Pads
Figure 2-9. Ink System Mechanism
2-10
Rev. A
Operating Principles
2.2.6.1 Pump Mechanism
1. Switching operation from the paper feed mechanism to the pump mechanism
The PF motor also functions as the pump motor by the switching operation of the PF motor drive
disengage mechanism. When the CR unit returns to the home position, the switch lever in the CR unit
pushes the cam lever. Then the disengage gear switches the torque from the ASF to the pump
mechanism via the gear train. Figure 2-11 illustrates how the torque is transmitted from the paper feed
mechanism to the pump mechanism.
Switch Lever
(CR)
PF Motor Drive Disengage Mechanism
Release Lever
Release Cam Set Lever
ASF Transmission Gear set Lever
Switch Lever (CR)
PF Motor Drive Disengage Mechanism
Release Cam
Disengage Gear
The direction in which the CR moves.
Torsion Spring
Figure 2-10. Release Cam Reset
CR Unit
PF Motor Pinion Gear
PF Motor
Switch Lever
Disengage Gear
Release Cam
Pump Mechanism
Figure 2-11. Paper Feed Mechanism Function
Rev. A
2-11
EPSON Stylus &2/25 1520
2. Switching operation from the pump mechanism to the paper feeding mechanism
When the CR unit shifts from the right end to the left end, the switch lever in the CR unit pushes the
cam release. Then the disengage gear switches the torque from the pump mechanism to the paper
feed mechanism as a result. Figure 2-13 illustrates how the torque is transmitted from the pump
mechanism to the paper feed mechanism.
Switch Lever (CR)
Path of the CR
Disengage Mechanism
Release Cam
Release Lever
Figure 2-12. Release Cam Reset (2)
CR Unit
PF Motor Pinion Gear
PF Motor
Switch Lever
Release Cam
Disengage Gear
PF Roller
Pump Mechasnim
Figure 2-13. Paper Feed Mechanism Function (2)
2-12
Rev. A
Operating Principles
3. Pump Mechanism Operation
The pump mechanism absorbs ink inside the printhead and drains the ink to the waste ink drain pads
via the cap. Since this printer has black and color heads, the pump mechanism functions for the both
heads by alternating rotational directions of the PF motor. When the PF motor rotates forward (the
direction for feeding paper), the pump is used for the black head. The PF motor rotates backward (the
direction for feeding back paper) to use the pump for the color head. The pump mechanism is
composed of the 2 rollers: tube, and pulley. To draw the ink, the pulley rotates the rollers squeezing
the tube to produce the negative pressure, which absorbs the ink and drains it into the waste ink drain
pad.
Pulley
Ink Drawing
Ink Draining
Ink Draining
Ink Drawing
PF Motor (Backward):Color Ink Drawing
PF Motor (Forward):Black Ink Drawing
Pulley
No Ink Drawing
No Ink Draining
No Ink Draining
No Ink Drawing
PF Motor (Backward):No Black Ink Drawing
PF Motor (Forward):No Color Ink Drawing
Figure 2-14. Pump Operation
Rev. A
2-13
EPSON Stylus &2/25 1520
2.2.7 Capping Mechanism
The capping mechanism caps the printheads with the cap holders to prevent the ink around the nozzles
from increasing viscosity while the printer is in the stand-by status or the printer power is off. The cap is
individually equipped for the black and color head. When the CR moves right from the home position, the
cap holder also shifts right and strikes the right frame. This motion opens the air valve to release the air in
the cap. To start printing operation, the CR moves right from the home position to strike the right frame
with the cap holder so that the air valve opens. This operation brings the negative pressure in the cap
back to normal and the CR goes back the home position. The power switch of this printer uses the
secondary circuit that keeps the printer power on until the capping operation completes even if the printer
is turned off during the operation.
Color Ink Cartridge
Black Ink Cartridge
Cap Holder
CR
Cap 2
Cap 1
To the waste ink drain pads
To the waste ink drain pads
Air Valve
1'
Hinge
Air Tube
1
Valve Spring
Right Frame
Figure 2-15. Capping Mechanism
2-14
Rev. A
Operating Principles
2.2.7.1 Wiping/CR Lock Mechanism
The wiping mechanism removes the ink and dust adhered around the nozzles. This is operated during a
cleaning sequence. When the PF motor rotates backward, the torque sent via the head cleaner (wiper)
drive gear and the clutch moves the head cleaner to the path of the printhead. Then the CR unit moves
right and left to wipe the nozzle surface against the head cleaner. The head cleaner leaves the path with
the forward rotation of the PF motor. Only one cleaner head is used for both black and color heads. The
head cleaner is substituted for the CR lock mechanism. When the printer power is off, it locks the CR unit
off the printing side. The right frame also locks the CR at the right end. With this mechanism, the CR
remains in the capping position while transported.
CR
Head Cleaner
Head Cleaner Lever
Printhead
PF Motor
Gear Train
Pump Gear/Clutch
<Wiping Mechanism>
Switch Lever
CR
Head Cleaner Lever
Disengage Mechanism
<CR Lock Mechanism>
Figure 2-16. Wiping/Carriage Lock Mechanism
Rev. A
2-15
EPSON Stylus &2/25 1520
2.3 Electrical Circuit Operation Principles
This printer consists of the following circuit board:
„C211 MAIN board
„C178 PSB/PSE board
„C211 Panel board
Head driver circuits (nozzle selection circuit) are directly attached to the black and color heads. Figure 217 shows the block diagram of the electrical circuit.
C211 PNL
M-4I60 Mechanism Unit
C172 PSB/PSE
+5 VDC
CR/PF Motor
C211 MAIN
+42 VDC
CR Unit
Black Head
Color Head
Driver Circuit Driver Circuit
Figure 2-17. Electrical Circuit Block Diagram
2.3.1 C172 PSB/PSE Electrical Circuit Board
The input voltages for the PSB/PSE board are as shown in Table 2-7. Since the electrical circuit of this
printer is in a secondary circuit, it accommodates the delay timer to make the printer execute the capping
operation even though the printer is turned off during the operation. With this function, the printer can
prevent the ink clogging or smudging caused by the exposed printhead.
Table 2-7. DC Voltage Distribution
VDC
+42 V
+5 V
Application
CR motor/PF motorMotors
Printhead common voltage
C211 MAIN control board (logic)
Sensors (HP sensor, PE sensor, ink cartridge
sensor, DE sensor, cover open sensor)
‰ Control panel, Head nozzle selection
‰
‰
‰
‰
The electrical circuit of this board uses the RCC (Ringing Choke Converter) switching regulator. AC
voltage is first input to the filter circuit for higher harmonics absorption and is then input to the rectification
and smoothing circuit, converting into DC voltage. This DC voltage is then input to the switching circuit.
Along with this switching operation by FET on the primary side, +42 voltage is generated and stabilized on
the secondary side. The produced +42 voltage is then converted into the stable +5 VDC by the regulator
IC. The CPU on the C211 MAIN board monitors the on/off signal of the power switch on the control panel.
When the power goes off, the CPU sends the Power Off signal (PSC) to the electrical circuit. The
electrical board has a delay circuit (ZD86, C82 and Q84) to delay the power off. The electrolytic capacitor,
which control the delay period, continues to output +5 V and +42 V by keeping the main circuit switch on
the primary side active until all electric charge is discharged. (The delay period is normally minimum 20
seconds, which depends on the capacitor size.)
2-16
Rev. A
Operating Principles
Figure 2-18 illustrates the electrical circuit diagram.
Primary Circuit
Full Wave
Rectifier
Circuit
Smoothing
Circuit
Secondary Circuit
Switching
Circuit
(Q1)
Half Wave
Rectifier
Circuit
+42 V
Chopping
Regulator
(IC51)
Filter
Fuse
+5 V
Photo-coupler
PC1
+42 V Line Detector
Circuit (ZD51, 81 to 86)
+42 V Line Over Current
Protection Circuit
(Q81, Q82)
AC Input
+42 V Line Over Voltage
Protection Circuit
(ZD52, ZD53, ZD87, Q82, Q83)
+5 V Over Voltage
Protection Circuit
(ZD53, Q82)
Power Off Delay Circuit
(ZD88, C84, Q84)
Power Off Signal
Figure 2-18. Power Supply Circuit Diagram
‰+5 VDC line over voltage protection circuit
The output voltage level of the 5 V line is monitored by a Zener diode (ZD53). If the voltage level
exceeds 9 V, the status is fed back to the primary switching circuit through the transistor (Q82) and
photocoupler (PC1) to cut the +42 V line to the regulator (OC51).
‰+5 VDC line constant voltage control circuit
Voltage at +5 VDC line is controlled by the regulator IC (IC51). When the abnormal voltage at +5 VDC
line is detected, the status is input to the internal comparator of the regulator to control the voltage.
‰+42 VDC line over voltage protection circuit
The output level of the +42 VDC line is monitored by the 2 Zener diodes ZD52 and ZD87. When the
output level of the +42 VDC line exceeds +48 V, the switching FET operation on the primary side is
stopped via the thyristor (CY52), transistor (Q81) and photocoupler (PC21).
‰+42 VDC line constant voltage control circuit
Voltage at the +42 VDC line is monitored by the Zener diodes (ZD51, ZD81−ZD86). This circuit feeds
back the output voltage level status through photocoupler (PC1) to the primary switching circuit to
control the on/off time of the switching FET for constant output voltage.
‰+42 VDC line overcurrent protection circuit
The output current is monitored by the transistors Q81 and Q82. When the output current is
abnormally low, the status is assumed to be a short circuit and the information is fed back to the
primary circuit to stop the switching FET operation
Rev. A
2-17
EPSON Stylus &2/25 1520
2.3.2 C211 MAIN Control Board
This printer uses C211 MAIN for the main control circuit board. It consists of the following:
„16-bit CPU C90A02CB (IC7)
:Running at 19.66 MHz
„2 gate arrays E05B33 (IC6)
:Controls interfaces, motors and printheads.
E05B34 (IC5)
„P-ROM, DRAM and MROM
„Drivers
:Produces common voltage for the motors and printheads.
Table 2-8 and Figure 2-19 show the allocated functions for major components and the main control circuit
block diagram, respectively.
Table 2-8. Location and function of the Major Components
IC
2-18
Location
CPU
IC7
Gate Array
IC5
Gate Array
IC6
DRAM
IC9
DRAM
MROM
IC10
IC13
P-ROM
P-ROM
IC11
IC14
EEPROM
IC2
Timer counter IC
Common driver IC
Common driver IC
Driver
Driver
IC3
IC18
IC19
IC16
IC17
Function
‰16-bit CPU
‰Run at 19.66 MHz
‰Controls the printer at the gate arrays IC5 and IC6
according to the program in P-ROM.
‰Controls the I/F for the control panel.
‰Controls the CR motor.
‰Detects the signals from the PE sensor, cover
open sensor and REL (Release) sensor.
‰Controls the parallel I/F.
‰Controls the serial I/F.
‰Controls Type-B I/F.
‰Controls the PF motor.
‰Controls black and color heads.
‰Controls the HP sensor and DE sensor.
‰Manages buffers, work area in the CPU, and
stuck area.
‰For image buffer. Expansion
‰24 Mbit
‰Manages C.G. (Character Generator).
‰Equipped only for the European version.
‰8Mbit
‰Printer control program
‰Manages C.G. (Character Generator).
‰Stores values for the default settings and other
values.
‰Manages timers for the ink system.
‰Produces common voltage for the black head.
‰Produces common voltage f or the color head.
‰Drives the PF motor.
‰Drives the CR motor.
Rev. A
Operating Principles
P-ROM(8M)
(IC14)
P-ROM(4M)
(IC11)
DRAM(4M)
(IC9)
DRAM(4M)
(IC10)
MROM
(IC13)
MROM
(IC12)
+42VDC
Data Bus
Type-B
I/F
Head
Temperature
+42V Power Line
Reset IC
M51955BFP
(IC4)
+5V
Logic Line
Reset IC
RST592D
(IC1)
+5VDC
Address Bus
GA
E05B34
(IC5)
CPU
C90A02CB
(IC7)
PSC
CR Motor Control
Control Panel
PE, Cover Open,
REL Sensors
HP, DE Sensors
+5V
EEPROM
LE93C56
(IC2)
+5V
Lithium Battery
GA
E05B33
(IC6)
CLK
Black/Color
Control Signals
PF Motor
Control Signal
Parallel I/F
Serial I/F
SD I/O
Timer
Counter IC
RTC-45436A
(IC3)
Carriage
Black/Color Head
Common Driver Circuit
Nozzle
Selection IC
Black Head
128 Nozzles
Nozzle Selection Signal
Nozzle
Selection IC
Color Head
64 Nozzles
From IC5
CR Motor Driver Circuit
SLA7043M (IC17)
M
CR Motor
From IC6
PF Motor
Driver Circuit
UDN2917EB (IC16)
M
PF Motor
From IC6
From IC6
Figure 2-19. Control Circuit Block Diagram
Rev. A
2-19
EPSON Stylus &2/25 1520
2.3.2.1 Reset Circuits
The C211 MAIN board contains two reset circuits: logic line (+5 9) and power (+42 9) line. Reset IC
M51955BFP (IC4) monitors the +42 9 line. It outputs /NMI signal to the CPU and the gate array to cut off
the power line for the motors when the voltage level drops below 33.2 V. Reset IC RST592D (IC1)
monitors the +5 V line and sends low pulse when the voltage level drops below 42 V. During the printer
power on, it outputs LOW until stabilized +5 V is produced to ensure the CPU’s proper operation.
+42V
RST592D
(IC1)
VOUT
M51955BFP
+5V
(IC4)
OUT2
OUT1
XRESET
NMI
CPU
C90A02CB
(IC7)
RES
RESET
GA
E05B34
(IC5)
GA
E05B33
(IC6)
Figure 2-20. Reset Circuit Block Diagram
2.3.2.2 Sensor Circuits
This printer has 9 sensors to monitor the printer condition.
‰HP Sensor (Home position sensor)
The HP sensor for this printer uses the photo interrupter system. When the CR unit is at the home
position, the signal goes low. A high signal level indicates that the CR unit is off the home position. The
photo interrupted system is highly reliable because it has no contact with any mechanism.
‰PE_R sensor (Rear Paper End sensor)
The PE_R sensor, attached to the rear side of the paper path, detects the paper presence condition
for continuous paper or cut sheet set in the rear side of the paper path. A mechanical switch used for
this sensor opens when paper is fed and closes without any paper detected.
‰PE_F sensor (Front Paper End sensor)
This PE_F sensor, located in the paper guide unit, detects cut sheet presence condition in ASF. This
sensor uses a mechanical switch which opens when paper is detected and closes with no paper
detected.
‰REL sensor (Release sensor)
REL sensor is built into the rear part of the left frame in the printer mechanism. It determines whether
the release lever is set to the cut sheet side (friction mode) or continuous paper side (tractor mode). A
mechanical switch used for this sensor opens and closes when the lever is set for the friction mode
and for the tractor mode, respectively.
‰DE sensor (Disengage sensor)
DE sensor built into the middle frame detects the CR position. A mechanical switch used for this
sensor opens when the CR is at the pump side and it closes when the CR is at the paper feeding side.
‰BCO sensor (Black ink cartridge sensor)
BCO sensor, attached to the black ink cartridge holder in the CR unit, detects the black ink cartridge
installation condition. A mechanical switch used for this sensor indicates Low when the cartridge is
installed and goes High when the cartridge is not installed. When the sensor detects no cartridge
condition, it resets the ink consumption counter.
2-20
Rev. A
Operating Principles
‰CCO sensor (Color ink cartridge sensor)
CCO sensor, attached to the color ink cartridge holder in the CR unit, detects if the color ink cartridge
is installed. A mechanical switch used for this sensor indicates Low with a cartridge installed and goes
High without it. When the sensor detects no cartridge condition, it resets the ink consumption counter.
‰Cover open sensor
Cover open sensor, located at the right end of the printer mechanism unit, monitors the open/close
status for the printer cover. A mechanical switch for this sensor opens when the cover is closed and
closes when the cover is opened. When a cover open condition is detected, the printer sopts printing
at the end of the line and returns the CR slowly to the CR lock position. When printing is commanded,
the CR is left unlocked.
‰Thermistor
Thermistor is attached onto the color head to monitor the temperatures around the head. It is operated
to avoid change in ink viscosity, which affects printing result. The signal output from the sensor is
directly transmitted to the analog port of the CPU.
Figure 2-21 shows sensor circuit block diagram.
Data Bus
Thermistor
THS
CPU
C90A02CB
(IC7)
SWA3
GA
E05B34
(IC5) SWA2
PE_R Sensor
PE_F Sensor
SWA1
REL Sensor
SWA0
Cover Open
Sensor
SWA0
GA
E05B33
(IC6) SWA1
Address Bus
HP Sensor
DE Sensor
SWC0
BCO Sensor
SWC1
CCO Sensor
Figure 2-21. Sensor Circuit Block Diagram
Rev. A
2-21
EPSON Stylus &2/25 1520
2.3.2.3 CR Motor Driver Circuits
The CR motor driver IC SLA7043M (IC15) sends motor phase data using the serial data (XCRCLK,
XCRSTB, CRASERI, CRBSERI) and voltage reference data (CRV) from the gate array E05B34 to the
driver to control the phase current in the driver. The data output from the phase A and phase B
(CRASERI, CRBSERI) are transferred synchronizing with the clock signal (XCRCLK). Then the data is
read at the driver IC by the strobe signal (XCRSTB). This sequence enables the micro step with a
minimum of 0.026 mm pulse driven at 2W1-2 phase excitation. The hold signal (CRHLD) also drives 2
phases to place the CR to the home position and to the cartridge change position. The Figure 2-22 shows
the CR motor driver circuit block diagram.
GA
E05B34
(IC5)
XCRCLK
XCRSTB
CRASERI
CRBSERI
PF Motor Drive IC
SLA7043M
(IC17)
81
5
80
16
2
13
101
102
6
17
CLKA
CLKB
STBA
STBB
DATAA
DATAB
A
A
B
B
PF Motor
1
8
CRV
CR_A
11
CR B
18
CR_B
+42V
+5V
From CRV0
to CRV6
CR A
3
14
CRCOM
REFA
REFB
Figure 2-22. CR Motor Block Diagram
2-22
Rev. A
Operating Principles
2.3.2.4 PF Motor Driver Circuit
The PF motor for this printer operates the following:
„Paper loading
„Paper feeding
„Pumping
The gate array E05B33 (IC6) outputs the phase drive control signals (PFAPH and PFBPH), phase data
(PFA0/1 and PPFB1/0) and voltage reference data (PFV) to the driver IC UDN2917EB (IC16). The driver
IC then controls the phase current based on the voltage reference data. This sequence enables the micro
step with a minimum of 1/720 inch at 2-2 phase.
E05B33
(IC6)
UDN2917EB
(IC16)
PFA0
PFA1
PFB0
PFB1
PFAPH
PFBPH
2
45
1
46
47
23
24
48
49
43
26
50
I10
I11
I20
A
I21
A
PH1
B
PH2
B
+5V
PO0
PO1
PO2
PO3
PF Motor
6
3
18
21
PF A
PF_A
PF B
PF_B
33
34
35
36
PFV
44
25
VREF1
VREF2
Figure 2-23. PF Motor Driver Circuit Block Diagram
Rev. A
2-23
EPSON Stylus &2/25 1520
2.3.2.5 Printhead Driver Circuit
This printer has 2 separate printhead driver circuits:for the black head and for the color head. Each circuit
has the common voltage driver circuit attached to the MAIN board and the nozzle selection circuit
attached to the head driver circuit board. The common driver circuits for the both black and color heads
are composed of the hybrid ICs (IC19) and the terminal transistors. 128-bit transfer gate array IC
IR2C72C is used for the black head nozzle selection circuit and 128-bit transfer gate array IC IR2C72C
(for cyan and yellow) and 64-bit transfer gate array IC IR2C73C (for magenta) are used for the color head
nozzle selection circuit. Printing data is separated into the common voltage signal and the nozzle selection
signal at the gate array E05B33 (IC6) and is then transferred to the corresponding circuit. Figure 2-24
shows the printhead driver circuit block diagram.
IR2C72C
E05B33 (IC6)
BCHG,BKC
BND0/1,BMD0/1
SBDATA
Common Driver
CN13
BHCLK
BHLAT
BA/BHDATA
BHNCHG
COM
CLK
LAT
SI
NCHG
Black Head
VHV
VHPR
SCLK,SSTB,SCLR
CCHG,CKC
CND1/2,CMD1/2
SCDATA
IR2C72C
Common Driver
CN12
CHCLK
CHLAT
YHDATA
CHDATA
MHDATA
CHNCHG
COM
CLK
LAT
S3
S1
Cyan
Yellow
NCHG
VHV
IR2C73C
COM
CLK
LAT
Magenta
S2
VHV
C211 MAIN Board
Head Driver Circuit
Figure 2-24. Prinrhead Driver Circuit Block Diagram
2-24
Rev. A
Operating Principles
‰Common driver circuit for the black head
Gate array E05B33 (IC6) sends serial data to the head nozzle selection circuit on the head to select
nozzles to activate. Then the data is transferred to the common driver on the control board to drive all
piezos that are corresponding to each nozzle. The operating principles for the black head is as follows:
„Nozzle selection circuit
Nozzles for the black head are divided into 2 rows with 64 nozzles on each, and 2 deferent types
of nozzle selection signal (BAHDATA and BBHDATA) are sent in serial data to the corresponding
row. Clock signal (BHCLK) is composed of the pulses from #1 to #64. The nozzles to be activated
is determined by the nozzle selection signal synchronized with the clock signal by the latch signal
(BHLAT). However, the numbers used for the pulses and corresponding nozzles are not the same.
„Common driver circuit
The common voltage (VH) is established to correspond to each of the black printhead
characteristics. This value is stored in advance in the EEPROM when the printer power is off. At
power on, the value is stored in the RAM. The gate array E05B33 (IC6) refers to the value for the
common voltage when outputting the serial data SBDATA as the voltage control signals to the
common driver circuit. The serial data transmission control signals (SCLK, SSTB and SCLR) are
used for this operation. The thermistor controls the common voltage by outputting the signals to
compensate for changes in ink viscosity.
BA/BHDATA
#1
#64
BHCLK
BHLAT
BHNCHG
Head Drive Voltage (VH)
COM
BKC,BCHG
BND0/1,BMD0/1
Figure 2-25. Black Data Transmission Timing
Rev. A
2-25
EPSON Stylus &2/25 1520
‰Color head nozzle selector circuit
The operating principle for the color head is the same as for the black head except that color print is
performed with data for 3 different colors: yellow, cyan, and magenta. The operating principle for the
color head is as described below:
„Nozzle selection circuit
The nozzles for the color head are divided into 3: for yellow, cyan, and magenta with 64 nozzles for
each of them. The nozzle selection signals for each color (YHDATA for yellow, MHDATA for
magenta and CHDATA for magenta) are sent simultaneously in serial data. The clock signal
(CHCLK) is composed of the pulses from #1 to #64. The nozzle selection signal and the
corresponding clock signal are synchronized by the latch signal (CHLAT) to determine the nozzle
to use. However, the numbers used for the pulses and corresponding nozzles are not the same.
„Common driver circuit
The common voltage (VH) is established to correspond to each of the black printhead
characteristics. This value is stored in advance in the EEPROM when the printer power is off. At
power on, the value is stored in the RAM. The gate array E05B33 (IC6) outputs the serial data
SCDATA of the voltage control signals to the common driver circuit referring to this value. The
control signals for the serial transmission SCLK, SSTB and SCLR are used for this operation. The
thermistor controls the common voltage by outputting the signals to compensate for changes in ink
viscosity.
YHDATA
CHDATA
MHDATA
#1
#64
CHCLK
CHLAT
CHNCHG
Head Drive Voltage (VH)
COM
CKC,CCHG
CND0/1,
CMD0/1
Figure 2-26. Color Data Transmission Timing
2-26
Rev. A
Operating Principles
2.4 Ink System Management
This section explains how the ink system is controlled to protect the printheads and to ensure the output in
high quality. The ink system consists of following operations:
„Power On
„Initialization
„Ink Cartridge Replacement
„Cleaning
„Print Start
„Flushing
„Waiting
„False Absorbing
„Wiping
„Rubbing
„Micro Absorbing
„Carriage Lock
The printer also selects an ink sequence based on the printer condition by referring to the value for the
timer counter IC that has a back-up lithium battery and timer counter stored in the EEPROM. The printer
has following counters:
„Protect Counter A
„Protect Counter C
„Ink Consumption Counter
„One-time Flag
2.4.1 Ink System Operations
The ink system operations are as described below.
‰Power on
Performed when the printer is turned on. It performs a cleaning sequence by referring to the counter
value.
‰Initialization
Performed when the printer receives the initialization command. The CR returns to the home position
during this operation.
‰Ink Cartridge Replacement
Performed through the control panel operation when the ink cartridge needs replacing. It determines
whether the ink cartridge is installed and performs cleaning sequence if necessary.
‰Cleaning
Performed to solve decline in print quality caused by the abnormal nozzle status such as nozzle
clogging and inaccurate ink ejection.
‰Print Start
Performs the cleaning or flushing operation before the printer starts printing after power on.
‰Flushing
Performed to eject few ink dots during printing to prevent ink from increasing viscosity.
‰Waiting
Performs the flushing operation after the printing operation to avoid nozzle clogging caused by the
viscous ink.
‰False Absorbing
Absorbs the ink inside the cap and eliminates the ink on the nozzle plate after ink is absorbed.
‰Rubbing
Performed to eliminate the ink and dust that adheres on the nozzle surface. Few dots of ink is
absorbed to moisten the nozzle surface prior to this operation.
‰Micro Absorbing
Performed to eject bubbles formed inside the cavity.
‰Carriage Lock
Locks the carriage when turning off the printer or no printing is performed for 5 minutes with the printer
power on.
Rev. A
2-27
EPSON Stylus &2/25 1520
2.4.2 Counters
This printer is equipped with following counters. The values for the counters are stored in the EEPROM on
the MAIN control board.
‰Protect Counter A
This counter is used to manage the total amount of drained ink. If the counter value exceeds 65,000,
the maintenance error occurs and the current printing job stops consequently. (Refer to Section
1.4.11.) This error requires EEPROM clear and waste ink drain pad replacement. (Refer to Section
1.4.3 and Section 3.2.9.) The current value for this counter can be found in the default setting mode.
(Refer to Section 1.4.5.) To reset the counter, perform EEPROM clear through the control panel
operation or by running the adjusting program.
‰Protect Counter C
This counter is used to manage the amount of ink flushed at the left waste ink drain pad located at left
end of the paper eject drive unit. The counter value corresponds to the ink amount accumulated in the
pad. If the counter value exceeds the specified value, the maintenance error is indicated and the
current printing job stops consequently. (Refer to Section 1.4.11.) With an occurrence of this error, the
waste ink drain pads must be replaced. (Refer to Section 1.4.3 and Section 3.2.9.) the current value
for this counter can be found in the default setting mode. (Refer to Section 1.4.5.)
‰Black/Color One-time Flag
This flag set in the EEPROM sets a limit to prevent user from performing frequent initial ink charge
operation. Normally the initial ink charging is performed when the user starts using a new printer only.
The flag is reset by the EEPROM clear operation through the control panel or adjusting program.
‰Ink Consumption Counter
This counter monitors the amount of ink used throughout the printing, cleaning, and flushing
operations after a new cartridge is installed. The value is referred to determine the amount of ink
remaining in the cartridge. This counter is reset when the cartridge is removed.
CAUTION
Be sure to replace the waste ink drain pads and the left ink pad when the EEPROM is cleared.(Refer
to Chapter 3.)
2-28
Rev. A
Chapter 3
Disassembly and Assembly
3.1 Overview................................................................................................................3-1
3.1.1 Precautions for Disassembling the Printer.......................................................................... 3-1
3.1.2 Tools ........................................................................................................................................ 3-2
3.2 Disassembly and Assembly.................................................................................3-3
3.2.1 Upper Housing Removal........................................................................................................ 3-4
3.2.2 ROM Replacement.................................................................................................................. 3-6
3.2.3 Print Head Removal................................................................................................................ 3-7
3.2.3.1 Black Head Removal................................................................................................. 3-7
3.2.3.2 Color Head Removal ................................................................................................. 3-8
3.2.4 Home Position (HP) Sensor Removal................................................................................... 3-9
3.2.5 Cover Open Sensor Removal .............................................................................................. 3-10
3.2.6 Printer Mechanism Unit Removal ....................................................................................... 3-11
3.2.7 PSB/PSE Board Assembly Removal................................................................................... 3-12
3.2.8 C211 MAIN Board Assembly Removal................................................................................ 3-13
3.2.9 Waste Ink Drain Pad Removal ............................................................................................. 3-15
3.2.9.1 Waste Ink Drain Pad Removal ................................................................................ 3-15
3.2.9.2 Left Ink Pad Removal .............................................................................................. 3-15
3.2.10 Printer Mechanism Unit Disassembly .............................................................................. 3-16
3.2.10.1 Carriage (CR) Motor Assembly Removal .............................................................. 3-16
3.2.10.2 PF (Paper Feed) Motor Assembly Removal.......................................................... 3-18
3.2.10.3 DE (Disengage) Sensor Removal ......................................................................... 3-19
3.2.10.4 Front/Rear PE (Paper End) Sensor Removal ....................................................... 3-20
3.2.10.5 REL (Release) Sensor Removal ........................................................................... 3-21
3.2.10.6 Edge Guide Unit Removal..................................................................................... 3-22
3.2.10.7 Paper Eject Frame Removal ................................................................................. 3-23
3.2.10.8 Pump Unit Removal .............................................................................................. 3-24
3.2.10.9 Carriage (CR) Unit Removal ................................................................................. 3-25
3.2.10.10 Base Frame Assembly Removal ......................................................................... 3-27
3.2.10.11 Paper Load Roller Unit Removal ......................................................................... 3-28
3.2.10.12 Paper Feed (PF) Roller Removal ........................................................................ 3-31
3.2.10.13 Rear Paper Guide Removal ................................................................................ 3-32
3.2.10.14 Middle Frame Assembly Removal....................................................................... 3-33
Disassembly and Assembly
3.1 Overview
This section describes procedures for disassembling the main components of EPSON Stylus COLOR
1520. Unless otherwise specified, disassembly units or components can be reassembled by reversing the
disassembling procedure. Therefore, no assembly procedures are included in this section. Precautions for
any disassembly or assembly procedure are described under the heading “WORK POINT”. Any
adjustment required after disassembling the units are described under the heading “REQUIRED
ADJUSTMENT”.
3.1.1 Precautions for Disassembling the Printer
See the precaution below when disassembling and assembling EPSON Stylus COLOR 1520.
WARNING
;Disconnect the power cable before disassembling and assembling the printer.
;Wear protective goggles to protect your eyes from ink. If ink gets in your eyes, flush the eye with
fresh water and see a doctor immediately.
;If ink comes into contact with your skin, wash it off with soap and water. If irritation occurs, contact
a physician.
;Be carefully not to get ink in your eyes. In case ink gets in your eyes, flush it with fresh water and
see a doctor immediately.
;A lithium battery is installed on the main board of this printer. Be sure to observe the following
instructions when servicing the battery:
ƒKeep the battery away from any metal or other batteries so that electrodes of the opposite
polarity do not come in contact with each other.
ƒ Do not heat the battery or put it neat fire.
ƒ Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte from the
battery , burning or explosion. the leakage may affect other device close to the battery.)
ƒ Do not charge the battery. (An explosive may be generated inside the battery, and cause burning
ƒ or explosion.)
ƒ Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage , burning
or explosion may also be resulted.)
ƒ Do not install the battery in the wrong direction. (This may cause burning or explosion.)
CAUTION
Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent
type recommended by the manufacture. Dispose the used battery according to government’s law and
regulations.
ATTENTION
Risqué d’explosion si la pile est remplacèe incorrectment. Ne remplacer pue par une pile du même
type ou d’un type équivalent recommandé par le fabricant. Elimenir les piles déchargées selon les lois
et les règles de sécurité en vigueur.
Rev. A
3-1
EPSON Stylus &2/25 1520
CAUTION
; Never remove the ink cartridge from the carriage unless manual specifies to do so.
; When transporting the printer after installing the ink cartridge, be sure to pack the printer for
transportation without removing the ink cartridge.
; Use only recommended tools for disassembling, assembling or adjusting the printer.
; Apply lubricants and adhesives as specified. (See Chapter 6 for details.)
; Make the specified adjustments when you disassemble the printer. (See Chapter 4 for details.)
3.1.2 Tools
Make sure you use the tools listed in the following table.
Table 3- 1. Tools
Tools
Phillips screwdriver no.1
Phillips screwdriver no.2
Standard screw driver
Nippers
Thickness Gauge
Tweezers
3-2
Distributor
EPSON
EPSON
EPSON
EPSON
EPSON
EPSON
Part No.
B743800400
B743800200
B743000100
B740500100
B776702201
B741000100
Rev. A
Disassembly and Assembly
3.2 Disassembly and Assembly
This section describes disassembly and assembly procedures for the printer assemblies and parts. See
the precautions in Section 3.1.1 when disassembling and assembling.
CAUTION
See the precautions in Section 3.1.1 prior to disassembly and assembly.
START
START
Upper Housing
Removal
ROM
Replacement
Printer Mechanism
Unit Removal
Printhead
Removal
HP Sensor
Removal
Cover Open
Sensor Removal
Main Board
Removal
PSB/PSE Board
Removal
Waste Ink Drain
Pad Removal
Printer Mechanism
Disassembly
CR Motor Assembly
Removal
PF Motor Assembly
REmoval
Edge Guide
Removal
Detection Sensor
Removal
Front/Rear PE
Sensor Removal
Release Sensor
Removal
Paper Eject
Frame Removal
Carriage Unit
Removal
Pump Unit Removal
Base Frame
Assembly Removal
Paper Load
Roller Removal
PF Roller Removal
Front Paper Guide
Removal
Middle Frame
Assembly Removal
Figure 3-1. Disassembly Flowchart
Rev. A
3-3
EPSON Stylus &2/25 1520
3.2.1 Upper Housing Removal
1. Remove the knob, release lever, rear sheet guide, output tray, and paper support.
2. Remove the tractor unit by releasing the hook using the tweezers, then remove it from the printer
mechanism unit by lifting up the rear edge of the tractor unit.
Hook in the Tractor Unit
Tweezers
Tractor Unit
Figure 3-2. Tractor Unit Removal
3. Open the printer cover, and insert the tweezers into the cutouts at the back of the Panel Unit to release
the hooks securing the panel unit to the upper housing. Then disconnect the connector cable for the
Panel Unit and remove the Panel Unit.
Connector Cable for the Panel Unit
Control Panel
Tweezers
Upper Housing
Figure 3-3. Panel Unit Removal
3-4
Rev. A
Disassembly and Assembly
4.
5.
Remove 3 screws (CBB, 3X12) and 2 screws (CBB, 4X2) securing the upper housing to the lower
housing.
Insert the tweezers into the cutouts at the bottom of the upper housing to release the hooks fixing the
upper housing to the lower housing. Then remove the upper housing.
WORK POINT
;After replacing the upper housing or printer cover, be sure to attach the label such as the
CAUTION label to the specified position.
Tractor Unit
Rear Sheet Guide
Screws (CBB 4X20)
Printer Cover
Screw (CBB 3X12)
Release Lever
Knob
Control Panel
Screws (CBB 3X12)
Knob Sheet
Upper Housing
Lower Housing
Hooks Fixing the Lower Housing
Figure 3-4. Upper Housing Removal
Rev. A
3-5
EPSON Stylus &2/25 1520
3.2.2 ROM Replacement
1.
Remove 1 screw (CBP, 3X8) securing the ROM cover to the lower housing, and remove the ROM
cover.
Remove the ROM.
2.
CAUTION
;Never replace the ROM before unplugging the power cable.
3-6
Rev. A
Disassembly and Assembly
3.2.3 Print Head Removal
3.2.3.1 Black Head Removal
1.
2.
3.
4.
5.
6.
7.
8.
Remove the upper housing. (Refer to Section 3.2.1.)
Remove the ink cartridge if it is installed.
Remove the FFC holders from the front left corner of the CR unit. Then release the FFCs by pulling
them toward the printhead side.
Disconnect the black head FFC from the black head connector.
Remove the cartridge lever.
Remove the compression spring fixing the black head to the CR unit.
Remove the head fixing screw securing the black head to the CR unit.
Shift the black head forward then remove the black head by lifting it upward.
Black Cartridge Lever
Color Cartridge Lever
Screw
Screw
Black Head
Color Head
Compression Spring
FFC for the Color Head
FFC for the Black Head
Fitting
Carriage Unit
Figure 3-5. Black/Color Head Removal
Rev. A
3-7
EPSON Stylus &2/25 1520
3.2.3.2 Color Head Removal
1.
2.
3.
Remove the upper housing. (Refer to Section 3.2.1.)
Remove the ink cartridge if it is installed.
Remove the FFC holders from the front left corner of the CR unit. Then release the FFCs by pulling
them toward the printhead side.
Disconnect the color FFC from the color head connector.
Remove the Cartridge Lever.
Remove the compression spring fixing the black head to the CR unit.
Remove the screw securing the color head to the CR unit.
Shift the color head forward then remove it by lifting upward.
4.
5.
6.
7.
8.
WORK POINT
;When removing the black head, be careful not to catch the color head FFC.
;Be careful not to damage the Head FFCs when pulling them from the corner of the CR unit.
REQUIRED ADJUSTMENT
;After replacing the head, perform the following:
(Refer to Chapter 4, Adjustment.)
„ Head data writing
„ Head angle adjustment
„ Head vertical adjustment
„ Head gap adjustment
3-8
Rev. A
Disassembly and Assembly
3.2.4 Home Position (HP) Sensor Removal
1.
2.
3.
Remove the upper housing. (Refer to Section 3.2.1.)
Disconnect the connector cable from the HP sensor connector.
Release the hooks fixing the HP sensor to the paper eject frame using the tweezers, then remove the
HP sensor.
WORK POINT
;After reassembling the HP sensor to the paper eject frame, be sure to fix the hooks to the frame
using the specified adhesive. (Refer to Chapter 6.)
HP Sensor
Paper Eject Frame
Tweezers
Connector Cable for the
HP Sensor
Figure 3-6. HP Sensor Removal
Rev. A
3-9
EPSON Stylus &2/25 1520
3.2.5 Cover Open Sensor Removal
1.
2.
3.
Remove the upper housing. (Refer to Section 3.2.1.)
Disconnect the cover open sensor connector cable from the cover open sensor connector.
Release the hooks fixing the Cover Open Sensor to the paper eject frame using the tweezers then
remove the Cover Open Sensor.
Cover Open Sensor
Hook
Figure 3-7. Cover Open Sensor Removal
3-10
Rev. A
Disassembly and Assembly
3.2.6 Printer Mechanism Unit Removal
1.
2.
3.
4.
Remove the upper housing. (Refer to Section 3.2.1.)
Disconnect the connector cables from the connectors CN3, CN4, CN8, CN9, CN10, CN11, CN12,
CN13, CN14, and CN15 on the C211 MAIN Board.
Remove 4 screws (CBB, 4X14) securing the printer mechanism unit to the lower housing.
Lift up the printer mechanism unit and remove it.
WORK POINT
;Be sure to lubricate the front top edge of the paper eject frame after installing the ASP printer
mechanism unit, which is not lubricated.
REQUIRED ADJUSTMENT
;After replacing the printer mechanism unit, perform the following:
(Refer to Chapter 4.)
„ Input the head data which is marked on the package.
„ Bi-directional adjustment.
Printer Mechanism Unit
Screws (CB 4X14)
Screws (CB 4X14)
Lower Housing
Figure 3-8. Printer Mechanism Removal
Rev. A
3-11
EPSON Stylus &2/25 1520
3.2.7 PSB/PSE Board Assembly Removal
1.
2.
3.
4.
Remove the upper housing. (Refer to Section 3.2.1.)
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Disconnect the power cable connector from CN1, and the C211 MAIN board connector cable from the
CN2.
Remove 4 screws (CBP, 3X12) securing the PSB/PSE Board to the lower housing, and remove the
PSB/PSE Board.
WARNING
;Make sure that the AC power cable is unplugged before disconnecting the power cable connector.
Screws (CBP 3X12)
PSB/PSE Board
CN2
CN1
Lower Housing
Figure 3-9. PSB/PSE Board Removal
3-12
Rev. A
Disassembly and Assembly
3.2.8 C211 MAIN Board Assembly Removal
1.
2.
3.
4.
5.
Remove the upper housing. (Refer to Section 3.2.1.)
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Disconnect the connector cable for the PSB/PSE board from CN2, and the Control Panel FFC from
CN7.
Remove 7 screws (CBP, 3X12) and 2 screws (CBS, M3X6) securing the C211 MAIN board assembly
to the lower housing. Then remove the C211 MAIN board assembly, along with the Type-B interface
shield cover.
Remove 2 screws (CP, M3X6) securing the Type-B interface shield cover to the C211 MAIN board.
Then remove the shield cover.
REQUIRED ADJUSTMENT
;When the C211 MAIN board is replaced, be sure to reset the EEPROM prior to adjustments to
avoid a failure such as bugged data.
WARNING
;Be careful when servicing the lithium Battery. (Refer to Section 3.1.1.)
;Pay attention to the sharp edges of the shield cover.
Rev. A
3-13
EPSON Stylus &2/25 1520
Screw (CBS 3x12)
CN4
CN3
Shield Cover for the Type-B I/F
Screw (CBS 3X6)
Screw (CP 3X6)
Screw (CBP 3X12)
CN15
CN14
Connector Cable
for ther Control Panel
Screw (CBS 3X6)
CN5
Screw (CBP 3X12)
CN8
CN9
CN10
CN11
CN13
CN12
FFCs for the Heads
Screw (CBP 3X12)
Main Board Assembly
CN2
Screws (CBS 3x12)
Lower Housing
Figure 3-10. C202 MAIN Board Removal
3-14
Rev. A
Disassembly and Assembly
3.2.9 Waste Ink Drain Pad Removal
Waste Ink Drain Pads must be replaced when the printer is under the following conditions:
„The value for the protect counter A has reached the specified value (65,000) and the maintenance
request error is indicated.
„The indicated value of the Protect counter is more than 52,000. (In this case, be sure to replace
them by agreement with your customer.
„The protect counter C has reached the specified value and the maintenance request error for the
left ink pad is indicated.)
(Refer to Section 1.4.11 and Section 2.4.2.2.)
3.2.9.1 Waste Ink Drain Pad Removal
1.
2.
3.
4.
Reset the EEPROM. (Refer to Section 1.4.2.)
Remove the upper housing. (Refer to Section 3.2.1.)
Remove the printer mechanism. (Refer to Section 3.2.6.)
Remove the waste ink pads.
3.2.9.2 Left Ink Pad Removal
1.
2.
3.
4.
Reset the EEPROM. (Refer to Section 1.4.2.)
Remove the upper housing. (Refer to Section 3.2.1.)
Remove the ink pad cover on the left end of the paper eject drive unit.
Remove the left ink pad.
WORK POINT
;Protect counter value is indicated on the first line of the first page of the default setting sample
print, along with the ROM version number.
Ink Pad Cover
Printer Mechanism Unit
Left Ink Pad
Waste Ink Drain Pads
Paper Eject Drive Unit
Figure 3-11. Ink Drain Pad Removal
Rev. A
3-15
EPSON Stylus &2/25 1520
3.2.10 Printer Mechanism Unit Disassembly
This section describes how to disassemble and reassemble the units and parts in the M-4160 printer
mechanism.
3.2.10.1 Carriage (CR) Motor Assembly Removal
1.
2.
3.
4.
Remove the printer mechanism unit. (Refer to 3.2.6.)
Release the timing belt by removing the extension spring.
Disengage the timing belt from the pulley on the CR motor assembly.
Turn the CR motor assembly counter clock wise in the order indicated with arrows to disengage the
joint with the base frame assembly. Then remove the CR motor assembly by moving it toward the
bottom edge of the motor frame.
CR Motor
Drive Pulley
Connector Cable for the CR Motor
Base Frame Asssembly
A
B
C
Timing Belt
Extension Spring
Figure 3-12. CR Motor Assembly Removal
5.
Disconnect the CR motor assembly connector cable from the connector on the CR motor assembly.
3-16
Rev. A
Disassembly and Assembly
WORK POINT
;When mounting the CR motor, make sure that the connector cable for the DE (disengage) sensor
doesn’t cut in.
;CR fan motor and the CR motor assembly are 2 different parts. Therefore be sure to attach the CR
fan motor when replacing the CR motor assembly. Use the specified adhesive to attach the fan to
the motor shaft. (Refer to Chapter 6.) Note the following when attaching the fan:
„ Do not insert the fan more than 1 mm from the shaft end.
„ Set the fan with the indented side facing outward.
(Refer to Chapter 6.)
CR Motor Assembly
(A) : 1 mm or less
Adhesive
Indented Side
Fan
Figure 3-13. Fixing the CR Motor Fan
Rev. A
3-17
EPSON Stylus &2/25 1520
3.2.10.2 PF (Paper Feed) Motor Assembly Removal
1.
2.
3.
Remove the printer mechanism unit. (Refer to 3.2.6.)
Remove the connector cable for the PF motor assembly from the connector cable clump on the
printer mechanism unit.
Remove 2 hexagon nuts securing the PF motor assembly to the middle frame using a spanner, then
remove the PF motor assembly.
WORK POINT
;The pinion gear on the PF Motor Assembly is highly precise and tends to rust easily. Therefore do
not touch it with your bare hand, or hit it with other objects.
PF Motor Assembly
Sub Frame Assembly
Hexagon Nuts (M3)
Figure 3-14. PF Motor Assembly Removal
3-18
Rev. A
Disassembly and Assembly
3.2.10.3 DE (Disengage) Sensor Removal
1.
2.
3.
Remove the printer mechanism unit. (Refer to 3.2.6.)
Using the tweezers, release the hooks fixing the DE sensor to the cam select assembly, then remove
the DE sensor.
Remove the connector cable from the connector for the DE sensor.
Connector Cable for the DE Sensor
Cam Select Assembly
Tweezers
DE Sensor
Hook fixing the DE Sensor
Figure 3-15. DE Sensor Removal
Rev. A
3-19
EPSON Stylus &2/25 1520
3.2.10.4 Front/Rear PE (Paper End) Sensor Removal
1.
2.
3.
Remove the printer mechanism unit. (Refer to 3.2.6.)
Using the tweezers, release the tubs fixing the Front/Rear PE sensors to the rear paper guide at the
bottom of the printer mechanism unit.
Disconnect the connector cables for the PE sensor from the PE sensor connectors.
Rear Paper Guide Assembly
Connector Cable
for the Rear PE Sensor
Rear PE Sensor
Hooks
Connector Cable
for the Front PE Sensor
Front PE Sensor
Figure 3-16. Front/Rear PE Sensor Removal
3-20
Rev. A
Disassembly and Assembly
3.2.10.5 REL (Release) Sensor Removal
1.
2.
Remove the printer mechanism unit. (Refer to 3.2.6.()
Using the tweezers, release the tabs fxing the REL sensor to the left frame assembly. Then remove
the REL sensor.
Tweezers
Tab Fixing the Release Sensor
Release Sensor
Connector Cable
for the Release Sensor
Figure 3-17. REL Sensor Removal
Rev. A
3-21
EPSON Stylus &2/25 1520
3.2.10.6 Edge Guide Unit Removal
1.
2.
3.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Release the joints for the edge guide unit and the right and left paper load roller slide covers.
Remove 2 flange nuts (M4) securing the edge guide unit to the left and middle frame assemblies.
Then remove the edge guide unit.
Right Slide Cover
Middle Frame Assembly
Main Bottom Frame
Left Slide Cover
Flange Nut
Damper
Rack
Left Frame Assembly
Edge Guide Unit
Flange Nut
Figure 3-18. Edge Guide Unit Removal
WORK POINT
;When installing the edge guide unit to the printer mechanism unit, be sure to engage the damper
pinion with the rack on the release transmission lever.
;When installing the edge guide unit to the printer mechanism unit, engage the edge guide unit with
the main bottom frame, as shown in the figure below.
;Fix the flange nuts with adhesive after fastening them. (Refer to Chapter 6.)
Main Bottom Frame
Edge Guide Unit
Figure 3-19.
Engagement of the Edge Guide with the Main Bottom Frame
3-22
Rev. A
Disassembly and Assembly
3.2.10.7 Paper Eject Frame Removal
1.
2.
3.
4.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Disconnect the connector cables for HP sensor and cover open sensor from the connectors.
Remove 3 screws (CBS, M3X6) securing the paper eject frame to the printer mechanism unit.
Remove the paper eject frame by releasing the joints.
Screw (CBS 3X6)
Paper Eject Frame
Screws (CBS 3X6)
Printer Mechanism Unit
Figure 3-20. Paper Eject Frame Removal
WORK POINT
;When removing the paper eject frame, place a clean piece of paper between the platen surface in
the front paper guide assembly and printheads in the CR unit to protect the printheads.
Rev. A
3-23
EPSON Stylus &2/25 1520
3.2.10.8 Pump Unit Removal
1.
2.
3.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Remove the paper eject frame. (Refer to Section 3.2.10.7.)
Remove 2 screws (CBS, 3X6 and CBP, 3X8) securing the pump unit to the printer mechanism unit.
Then remove the pump unit.
Head Cleaner
Screw (CBS 3X6)
Pump Unit
Head Cleaner Lever
Right Frame Assembly
Middle Frame Assembly
Screw (CBP 3X8)
Figure 3-21. Pump Unit Removal
WORK POINT
;When mounting the head cleaner onto the pump unit, set the rubber part of the cleaner facing to
the pump side.
3-24
Rev. A
Disassembly and Assembly
3.2.10.9 Carriage (CR) Unit Removal
1.
2.
3.
4.
5.
6.
7.
8.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Remove the extension spring to release the timing belt. (Refer to the step 2 in Section 3.2.10.1.)
Disengage the timing belt from the pulley and sub pulley in the CR motor assembly.
Remove 2 E-rings and 2 plain washer from the both edges of the CR guide shaft.
If the head cleaner lever in the pump unit is locking the CR unit, push the lever down manually to
release the CR unit.
Remove 1 securing the head FFCs and FFC holders to the base frame assembly. Then remove the
head FFC and FFC holder from the printer mechanism unit.
Turn the parallelism adjust bushings joining the CR guide shaft to the right and left frame assemblies
until they fit into the cutouts on the frames. Then remove the CR unit along with the CR guide shaft.
Remove the CR guide shaft from the CR unit.
Parallelism Adjust Bushing
CR Guide Shaft
PG Adjust Lever
Head FFC
CR Unit
Plain Washer
E-ring
E-ring
Plain Washer
Parallelism Adjust Bushing
Screws Fixing the CR
Printer Mechanism Unit
Screw Securing the Head FFCs and FFC Holder
Figure 3-22. CR Unit Removal
Rev. A
3-25
EPSON Stylus &2/25 1520
WORK POINT
;After removing the CR unit, do not touch and damage the heads. Protect the heads from static
electricity, because the head drive circuit is directly attached to the head board.
;Pay attention to the oil pad when removing the CR guide shaft from the CR unit. It tends to
dislocate.
;When installing the CR guide shaft to the printer mechanism unit, be sure to fit the platen gap
adjust lever to the right frame assembly. (Refer to the figure below.)
REQUIRED ADJUSTMENT
;Perform platen gap adjustment, Bi-directional adjustment, and Uni-directional adjustment after
installing the CR unit and parallelism adjust bushings. (Refer to Chapter 4.)
;If the printheads are replaced along with the CR unit, be sure to write head data to the EEPROM.
(Refer to Chapter 4.)
WORK POINT
;When engaging the timing belt to the CR unit, note 2 parts of the belt: flat part and tooth part. Be
sure to position the 2 parts of the timing belt as shown in the figure below.
CR Motor Assembly Side
Flat
Timing Belt
CR Assembly Side
Figure 3-23. Timing Belt Installation
3-26
Rev. A
Disassembly and Assembly
3.2.10.10 Base Frame Assembly Removal
1.
2.
3.
4.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Remove the paper eject frame. (Refer to Section 3.2.10.7.)
Remove the CR unit. (Refer to Section 3.2.10.9.)
Remove 1 E-ring fixing the gear (46) and compression spring (1.96) to the left frame assembly. Then
remove the gear along with 2 plain washers and the compression spring.
WORK POINT
;Be careful not to lose the compression spring. It might spring out when you remove the E-ring.
5.
6.
7.
Remove the tractor release cam.
Adjusting the sub tractor release cam with the cutout in the left frame assembly, and remove it from
the tractor release shaft. (Refer to the figure below.)
Remove 5 screws (CBS, 3X6) securing the base frame assembly to the printer mechanism unit, then
lift up the base frame assembly and remove it.
Middle Frame assembly
Base Frame Assembly
Screws (CBS 3X6)
Tractor Release Shaft
Right Frame Assembly
Sub Tractor Release Cam
Screw (CBS 3X6)
Plain Washer
Left Frame Assembly
Tarctor Release Cam
PF Roller Shaft
Gear 46
E-ring
Compression Spring 1.95
Figure 3-24. Base Frame Assembly Removal
Rev. A
3-27
EPSON Stylus &2/25 1520
3.2.10.11 Paper Load Roller Unit Removal
1.
2.
3.
4.
5.
6.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Remove the paper eject frame. (Refer to Section 3.2.10.7.)
Remove the CR unit. (Refer to Section 3.2.10.9.)
Remove the base frame assembly. (Refer to Section 3.2.10.10.)
Attach the knob to the PF roller shaft, and press the trigger lever down. Then rotate the paper load
roller unit by turning the knob clock wise to hold the edge guide unit down.
Remove 1 screw (CBP, 3X8) securing the paper eject drive unit to the left frame assembly, and
remove the paper eject drive unit by lifting up the front edge.
Paper Eject Drive Unit
PF Roller Unit
Screw (CBP 3X8)
Trigger Lever
Left Slide Cover in the
Paper Load Roller Unit
Edge Guide Unit
Right Slide Cover in the
Paper Load Roller Unit
Figure 3-25. Paper Eject Drive Unit Removal
7.
8.
9.
10.
Release the joints for the right and left slide covers and the edge guide.
Remove the E-ring located at left end of the paper load roller .
Adjust the paper load roller bushing with the cutout on the right frame.
Disengage the paper load gear at the right end of the paper load roller unit from the ASF transmission
gears in the middle frame. Then remove the paper load roller unit by sliding it toward the left frame
assembly.
3-28
Rev. A
Disassembly and Assembly
Gear (PF Roller)
ASF Tarnsmission Gear Set
Bushing
Paper Load Shaft
E-ring
Bushing
Edge Guide
PF Roller
Figure 3-26. Paper Load Roller Removal
Rev. A
3-29
EPSON Stylus &2/25 1520
WORK POINT
;Note the direction in which the paper load gear and the gear (29) are engaged. (Refer to the figure
below.)
;Do not touch the gear teeth with your bare hands. Damaged gear may lose accuracy in paper
feeding.
Gear 29
(ASF Transmission Gear Set)
Gear (PF Roller)
Figure 3-27. Gear Engagement
3-30
Rev. A
Disassembly and Assembly
3.2.10.12 Paper Feed (PF) Roller Removal
1.
2.
3.
4.
5.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Remove the paper eject frame. (Refer to Section 3.2.10.7.)
Remove the CR unit. (Refer to Section 3.2.10.9.)
Remove the base frame assembly. (Refer to Section 3.2.10.10.)
Remove 1 screw (CBP, 3X8) securing the paper eject drive unit to the left frame assembly. Then
remove the paper eject drive unit by lifting up the front edge.
6. Remove the trigger lever from the PF roller.
7. Remove the roller grounding spring in contact with the left frame assembly at the left end of the PF
roller.
8. Turn the right and left bushings to adjust them with the cutouts on the right and left frames.
9. Remove 1 E-ring from the left end of the PF roller.
10. Slide the PF roller shaft left, and disengage the PF roller gear (24) from the ASF transmission ratchet.
Then remove the PF roller.
Trigger Lever
Gear 33.6
Gear 24
Bushing
PF Roller
Roller Grounding Spring
ASF Transmission
Rachet
E-ring
Figure 3-28. PF Roller Removal
CAUTION
;The gear 33.6 is highly precise. Therefore do not touch the tooth with your bare hand and be
careful not to damage it.
Rev. A
3-31
EPSON Stylus &2/25 1520
3.2.10.13 Rear Paper Guide Removal
1.
2.
3.
4.
5.
6.
7.
8.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Remove the paper eject frame. (Refer to Section 3.2.10.7.)
Remove the CR unit. (Refer to Section 3.2.10.9.)
Remove the base frame assembly. (Refer to Section 3.2.10.10.)
Remove the PF roller. (Refer to Section 3.2.10.12.)
Remove the edge guide. (Refer to Section 3.2.10.6.)
Remove 2 screws (CBS, 3X6) securing the paper load guide frame to the left and middle frame
assemblies.
Release the hook fixing the rear paper guide at the right side of the main bottom frame assembly.
Then slide the rear paper guide left slightly and remove it.
Paper Load Guide Frame
Hook
Rear Paper Guide
Screw (CBS 3x6)
Middle Frame Assembly
Main Bottom Frame Assembly
Screw (CBS 3x6)
Left Frame Assembly
Figure 3-29. Rear Paper Guide Removal
3-32
Rev. A
Chapter 4
Adjustment
4.1 Over View ..............................................................................................................4-1
4.1.1 Platen Gap Adjustment .......................................................................................................... 4-2
4.1.2 Initialize Operation ................................................................................................................. 4-4
4.1.3 Head Voltage Write Operation ............................................................................................... 4-5
4.1.3.1 Finding out the Head Voltage .................................................................................... 4-6
4.1.4 Black Head Angular Adjustment ........................................................................................... 4-7
4.1.5 Color Head Angular Adjustment ........................................................................................... 4-8
4.1.6 BK-M Height Adjustment ....................................................................................................... 4-9
4.1.7 Bi-d Adjustment .................................................................................................................... 4-11
4.1.8 Head GAP Adjustment ......................................................................................................... 4-12
Adjustment
4.1 Overview
This section describes adjustmenta required after disassembling and assembling the printer.
CAUTION
;Adjustment must be performed in the order numbered in Table 4-1.
;Be sure to leave the ink cartridges installed in the CR unit when returning the printer to the
customer.
;Use 720 dpi exclusive paper when printing the adjustment pattern.
Table 4- 1 Required Adjustment
Replaced Unit/Part
Adjustment Menu
1. EEPROM Clear (Refer to Section 1.4.3.)
Replacement of the printer
2. Head Voltage Write
mechanism or
3. BK-M Hight Adjustment
MAIN board
4. Head Gap Adjustment
5. Bi-d Adjustment
1. Head VH voltage input
Black head replacement
2. Black Head Angular Adjustment
3. BK-M Hight Adjustment
4. Head Gap Adjustment
1. Black Head Angular Adjustment
Black head removal
2. BK-M Hight Adjustment
3. Head Gap Adjustment
1. Head VH voltage input
Color head replacement
2. Color Head Angular Adjustment
3. BK-M Hight Adjustment
4. Head Gap Adjustment
1. Color Head Angular Adjustment
Color head removal
2. BK-M Hight Adjustment
3. Head Gap Adjustment
1. Platen Gap adjustment
CR unit Replacement
2. Head Voltage Write
3. Bi-d Adjustment
CR unit removal or CR unit 1. Platen Gap adjustment
disassembling
2. Bi-d Adjustment
CR motor removal or CR 1. Bi-d Adjustment
motor disassembling
Note) The adjusting program doesn’t run without inputting the customer data first.
Rev. A
4-1
EPSON Stylus &2/25 1520
4.1.1 Platen Gap Adjustment
This adjustment is performed to obtain the appropriate gap between the head nozzle surface and the
platen. It must be adjusted after removing or replacing the CR guide shaft, CR unit or parallelism adjust
bushing. The specified value for the platen gap is 1.16 ± 0.02 mm.
1.
Set the right and left parallelism adjust bushings to the middle of the adjusting range.
2.
Place the thickness gauge as illustrated below.
Thickness Gauge
Figure 4-1. Thickness Gauge Placement
3.
(See the flowchart in Page 4-3.)
Turn the left parallelism adjust bushing to make the gap enough to insert a 1.14 mm-thick gauge.
Make sure that a 1.18 mm-thick gauge does not pass through. (Table 4-2 shows the directions for
turning the bushings to change the platen gap.)
Table 4-1 Platen Gap and Parallelism Adjust Bushing
4.
Platen gap
Left parallelism
adjust bushing
Right parallelism
adjust bushing
Narrower
CW
CCW
Wider
CCW
CW
Apply the same procedure for the right parallelism adjust bushing.
CAUTION
;Platen gap is adjusted using the black head as a basis. Therefore do not inset the thickness gauge
under the color head.
;Open the platen gap by setting the platen gap to “+” side before shifting the CR unit.
4-2
Rev. A
Adjustment
Start
Set the PG lever to "+".
PG Adjustment
Shift the CR to the left end.
Does a
1.14-mm Gauge
fit?
Set the PG lever to "0".
YES
NO
Adjust the PG.
Widen the PG.
NO
Is the left PG OK?
Does a
1.18-mm Gauge
fit?
YES
Set the PG lever to "+".
NO
YES
Shift t he CR to the right end.
Narrow the PG.
Set the PG lever to "0".
Adjust the PG.
NO
Returm to the main flow.
Is the right PG OK?
YES
Set the PG lever to "+".
Shift the CR unit to the left end.
Set the PG lever to "0".
Adjust the PG.
NG
Is the left PG OK?
OK
END
Figure 4-2. Platen Gap Adjustment Flow Chart
Rev. A
4-3
EPSON Stylus &2/25 1520
4.1.2 Initialize Operation
This operation is performed to write the factory values in the EEPROM on the MAIN board. With this
operation, the factory values are written in at a time.
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Start the adjustment program in the host computer.
3.
Select ´&86720(56(7µ in the 1 st menu and press the Enter key.
4.
Move the cursor using ↑ or ↓ key to select an appropriate customer code and area. Then press the
Enter key, and the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu. Then press the Enter key, and
the main menu appears on the monitor.
6.
Move the cursor using ↑ or ↓ key to select “,1,7,$/,=(µ. Then press the Enter key to execute the
initialization. Then press the Enter key to return to the main menu.
7.
Select other adjustment using ↑ or ↓ key, or select 5(785172VW0(18 to exit the main menu.
8.
Move the cursor using ↑ or ↓ key to select ´(1'µ and press the Enter key to exit the program.
Note
1. Unless ³&86720(56(7´ is executed, the program does not proceed to the main menu.
2. Input of an incorrect customer code does not assure the proper operation of the program.
WORK POINT
;Adjusted values are not stored in the EEPROM until the printer is turned off. Therefore be sure to
turn off the printer once after the adjustment program is executed.
;The set value is transferred to the printer when this operation is executed. Therefore do not turn
off the printer before executing “ ,1,7,$/,=(´.
4-4
Rev. A
Adjustment
4.1.3 Head Voltage Write Operation
This operation is performed to write the print head drive voltages in the EEPROM. You need to perform
this operation whenever you replace the prihthead.
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Run the adjustment program in the host computer.
3.
Input the customer data. (Refer to Section 4.1.2.)
4.
Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu. Then press tKHEnter.H\, and
the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select “+($'92/7$*(:5,7(µ. Then press the Enter key, and the
“+($' 92/7$*( :5,7(µ program starts. You are to input the data for the black head. The head ID
(head voltage) is marked on the left side of the head, as shown below.
Head Voltage Marking
Figure 4-3. Head ID Marking
6.
Write the black head ID (head voltage), which is composed of 5 digits, as shown below,. The first 2
digits and the following 2 digits indicate the head ID for the normal dot and head ID for microweave
dot respectively. The last digit indicates the rank value.
Black Voltage (5- digit-ID) : * * * * *
Color Voltage (5 digit-ID) : * * * * *
7.
Press the Space key if you correct a wrong ID. Enter “0” to exit “+($'92/7$*(:5,7(µ, and the main
menu appears on the monitor.
Note If the Enter key is pressed, the initial ink charge is performed and the program returns to the
main menu.
8.
Select other adjustment menu using ↑ or ↓ key, or select “5(785172VW0(18µ to exit the main menu.
9.
Move the cursor using ↑ or ↓ key to select “(1'µ and press WKHEnterkey to exit the adjustment
program.
WORK POINT
;Adjusted values are not stored in the EEPROM until the printer is turned off. Therefore be sure to
turn off the printer once after the adjustment program is executed.
;The set value is transferred to the printer when this operation is executed. Therefore do not turn
off the printer before exiting “ +($'92/7$*(:5,7(´.
Rev. A
4-5
EPSON Stylus &2/25 1520
4.1.3.1 Finding out the Head Voltage
Normally, the head voltage is not acknowledged without checking the head ID by removing the head. This
program is, however, designed to read the head voltage data stored in the EEPPROM on the MAIN Board.
This section described how to find out the head voltages.
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Run the adjustment program in the host computer.
3.
Input the customer data. (Refer to Section 4.1.2.)
4.
Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu. Then press WKHEnterkey, and
the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select “$&+(&.3$77(51µ Then press the Enter key, and the
printer prints out the check patterns and the item shown below;
6. TITLE
>&***@ 6W\OXV&2/25
6.
%.%%%%%%%%!
<0&&&&&&&&&!
Head ID (head voltage) is identified as described below;
B2 and B3
B5
B7 and B8
: Represent the black head drive voltage for the normal dot
: Represents the black head rank value
: Represent the black head drive voltage for the microweave dot
B1, B4 and B6 are usually “0” and you can ignore them when inputting the head voltage. Apply the
same procedure for the color head.
4-6
Rev. A
Adjustment
4.1.4 Black Head Angular Adjustment
This adjustment must be made when replacing or disassembling the black head. The black head is held
by the compression spring to the supporting point of the CR unit and the angle adjust lever located under
the black head. The adjust lever is used to swing the black head in parallel to the printing surface. With
this operation, the nozzles on the head are aligned parallel to the paper feed direction.
Black Head
Supporting Point
Location Holes
Compression Spring
Head Angle Adjust Lever
Figure 4-4. Head Angular Adjustment
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Run the adjustment program in the host computer.
3.
Input the customer data. (Refer to Section 4.1.2.)
4.
Move the cursor using ↑ or ↓ key to select “$'-867” in the 1st menu. Then press WKHEnterkey, and
the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select “+($'$1*8/$5$'-8670(17µ. Then press the Enter key,
and the printer prints out the head angular adjustment patterns.
6.
Move the angle adjust lever to align the vertical lines continuously by making the width (A) less than
4/1 of the line width, as shown in Figure 4-5.
Move the lever right.
Move the lever left.
(A)
Paper feed direction
Figure 4-5. Black Head Angular Adjustment
7.
Press the Space key to repeat the operation. Press the Enter key to exit “%ODFN+HDG$QJXODU$GMXVWPHQWµ,
and the main menu appears.
8.
Select other adjustment using ↑ or ↓ key, or select “5(785172VW0(18µ to exit the main menu.
9.
Move the cursor using ↑ or ↓ key to select ´ENDµ and press WKH Enter key to exit the adjustment
program.
CAUTION
;While moving the angle adjust lever, lift it up a little.
;Ensure that the lever does not move by fitting the notches in the lever to the location holes on the
CR unit securely.
;Do not move the lever with much force, since it is breakable.
Rev. A
4-7
EPSON Stylus &2/25 1520
4.1.5 Color Head Angular Adjustment
You must make this adjustment when replacing or disassembling the color head. The color head is, same
as black head, held by the compression spring to the supporting point of the CR unit and the angle adjust
lever located under the color head. The adjust lever is used to swing the color head in parallel to the
printing surface. With this operation, the YMC heads are set at a proper angle.
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Start the adjustment program in the host computer.
3.
Input the customer data. (Refer to Section 4.1.2.)
4.
Move the cursor using ↑ or ↓ key to select “ADJUST” in the 1st menu. Then press WKHEnterkey, and
the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select “+($'$1*8/$5$'-8670(17µ. Then press the Enter key,
and the printer prints out the head angular adjustment patterns.
6.
Move the angle adjust lever to make the deviation (B) between 2 colors less than 4/1 of the line width.
(Refer to Figure 4-6.)
Move the lever left.
Move the lever right.
(B)
Paper feed direction
Gaps between colors
Figure 4-6. Color Head Angular Adjustment
7.
Press the Space key to repeat the operation. Press the Enter key to exit “Color Head Angular
Adjustment”, and the main menu appears.
8.
Select other adjustment using ↑ or ↓ key, or select “5(785172VW0(18” to exit the main menu.
9.
Move the cursor using ↑ or ↓ key to select ´(1'µ and press WKH Enter key to exit the adjustment
program.
CAUTION
;While moving the angle adjust lever, lift it up a little.
;Ensure that the lever does not move by fitting the notches in the lever to the location holes on the
CR unit securely.
;Do not move the lever with much force, since it is breakable.
4-8
Rev. A
Adjustment
4.1.6 BK-M Height Adjustment
This adjustment is needed when the black/color head or both heads are removed or disassembled. With
this operation, the vertical position for the black and color head are aligned. To make the adjustment,
adjust the vertical position for the color heads based on the black head position by moving the head
vertical adjust lever.
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Run the adjustment program in the host computer.
3.
Input the customer data. (Refer to Section 4.1.2.)
4.
Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu. Then press WKHEnterkey, and
the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select´%.0+,*+7$'-8670(17µ. Then press the Enter key, and
the printer prints out the BK-M height adjustment patterns.
6.
Make the adjustment by moving the head vertical adjust lever, as shown in Figure 4-7.
Start
Head Vertical
Adjust Lever
Print out the head vertical
adjustment patterns.
Are there gaps?
Yes
No
Direction?
Press the Enter key.
B
C
B
Black
P*
P*
Black
Color
Move the lever to front.
Move the lever to rear.
P*: Paper feed direction
P*: Paper feed direction
End
Enter the Space key.
Figure 4-7. BK-M Height Adjustment Flow Chart
7.
Press Space key to repeat the operation. Press the Enter key to exit ´%.0+,*+7$'-8670(17µ, and
the main menu appears.
8.
Select other adjustment using ↑ or ↓ key, or select “5(785172VW0(18µ to exit the main menu.
9.
Move the cursor using ↑ or ↓ key to select ´(1'µ and press WKH Enter key to exit the adjustment
program.
CAUTION
;While moving the head vertical adjust lever, lift it up a little. When fixing it, make sure that the
notches of the lever are securely engaged with the location holes on the CR unit so that the lever
does not move.
Rev. A
4-9
Adjustment
4.1.7 Bi-d Adjustment
This is required when the CR unit or CR motor is replaced or removed. You perform this operation to
adjust the deviation occurs between lines printed in 2 different print directions when the printer is in the Bidirectional printing mode.
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Start the adjustment program in the host computer.
3.
Input the customer data. (Refer to Section 4.1.2.)
4.
Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu. Then press WKHEnterkey, and
the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select “%LG $'-8670(17µ. Then press the Enter key, and the
printer prints out the Bi-d adjustment patterns in the draft and LQ modes.
6.
Adjust the deviation referring to the flowchart below to make the deviation ( C ) less than 1/2 of the
line width in the draft mode and 1/3 of the line width in the LQ mode. (Refer to Figure 4-8.)
Start
Select Bi-d ADJUSTMENT in the
main menu.
(C)
Print out the Bi-d adjustment
pattern in the draft and
LQ mode.
Direction?
NG
How is Bi-d?
Enter the value with
key.
OK
Enter the value with
key.
Press the Enter key.
Enter "0".
Print out the Bi-d adjustment
pattern in the draft and
LQ mode.
Proceed to the main menu.
How is Bi-d ?
Press the Space key.
Figure 4-8. Bi-d Adjustment Flow Chart
7.
Press Space key to repeat the operation. Press the Enter key to exit “Bi-d Adjustment”, and the main
menu appears.
8.
Select other adjustment using ↑ or ↓ key, or select “5(785172VW0(18µ to exit the main menu.
9.
Move the cursor using ↑ or ↓ key to select ´(1'µ and press WKH Enter key to exit the adjustment
program.
CAUTION
;Adjusted values are not stored in the EEPROM until the printer is turned off. Therefore be sure to
turn off the printer once after the adjustment program is executed.
;The set values are transferred to the printer when exiting this operation. Therefore do not turn off
the printer before executing “Bi-d Adjustment”.
Rev. A
4-11
EPSON Stylus &2/25 1520
4.1.8 Head GAP Adjustment
This operation is required when the black/color head or the both heads are removed or replaced. It is
performed to align the vertical lines between black and color heads.
1.
Connect the printer and the host computer with a parallel interface cable.
2.
Run the adjustment program in the host computer.
3.
Input the customer data. (Refer to Section 4.1.2.)
4.
Move the cursor using ↑ or ↓ key to select ´$'-867µ in the 1st menu. Then press WKHEnterkey, and
the main menu appears on the monitor.
5.
Move the cursor using ↑ or ↓ key to select “+($'*$3$'-8670(17µ. Then press the Enter key, and
the printer prints out the head gap adjustment patterns in the both LQ and SLQ modes.
6.
Adjust the deviation referring to the flowchart below to make the deviation (D) less than 2/1 of the line
width in the LQ mode and 1/4 of the line width in the SLQ mode. (Refer to Figure 4-9.)
Start
Select "HEAD GAP ADJUSTMENT "
in the main menu.
(D)
Print out the head gap adjustment
pattern in the LQ and SLQ mode.
In whch direction?
How is the
head gap?
NG
OK
Enter the value
" "
using the
key.
Enter the value
" "
using the key.
Press the Enter key.
Enter "0".
Print out the head gap adjustment
pattern in the LQ and SLQ mode.
Return to the main menu.
How is the
head gap?
NG
Press the Space key.
OK
Figure 4-9. Head Gap Adjustment Flow
7.
Press Space key to repeat the operation. Press the Enter key to exit “+($'*$3$'-8670(17µ, and the
main menu appears.
8.
Select other adjustment using ↑ or ↓ key, or select “5(785172VW0(18µ to exit the main menu.
9.
Move the cursor using ↑ or ↓ key to select ´(1'µ and press WKH Enter key to exit the adjustment
program.
CAUTION
;Adjusted values are not stored in the EEPROM until the printer is turned off. Therefore be sure to
turn off the printer once after the adjustment program is executed.
;The set values are transferred to the printer when exiting this operation. Therefore do not turn off
the printer before executing “+($'*$3$'-8670(17´.
4-12
Rev. A
Disassembly and Assembly
3.2.10.14 Middle Frame Assembly Removal
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Remove the printer mechanism unit. (Refer to Section 3.2.6.)
Remove the paper eject frame. (Refer to Section 3.2.10.7.)
Remove the pump unit. (Refer to Section 3.2.10.8.)
Remove the CR unit. (Refer to Section 3.2.10.9.)
Remove the base frame assembly. (Refer to Section 3.2.10.10.)
Remove the PF roller assembly. (Refer to Section 3.2.10.12.)
Remove the edge guide unit. (Refer to Section 3.2.10.6.)
Remove 1 screw (CBS, 3X6) securing the paper load guide frame to the middle frame assembly.
Remove the connector cable for the middle frame assembly from the clump.
Remove 2 screws (CBS, 3X6) securing the middle frame assembly to the bottom main frame
assembly. Then remove the middle frame assembly.
Screw (CBS 3X6)
Screws (CBS 3X6)
Middle Frame Assembly
Paper Load Guide Frame Assembly
Main Bottom Frame Assembly
Figure 3-30. Middle Frame Assembly Removal
Rev. A
3-33
Chapter 5
Troubleshooting
5.1 General Description .............................................................................................5-1
5.2 Unit Level Troubleshooting .................................................................................5-3
5.3 Repair of the C172 PSB/PSE Board at Component Level .................................5-9
5.4 Component Repair of the C211 MAIN Board ....................................................5-10
5.5 Repair of M-4I60 Printer Mechanism.................................................................5-12
Troubleshooting
5.1 General Description
This section describes procedures for isolating the failure unit in 2 levels; unit level troubleshooting and
the component level troubleshooting. You are to refer to the flowchart below to isolate the defective unit
and perform repair at the component level. Table 5-1, Table 5-2 and Table 5-3 show the coil resistance for
the CR motor and PF motor, sensor status , and Error codes and solution respectively.
START
Troubleshooting at the unit level
Reapir of the unit
(C172 PSB/PSE board)
Repar of the unit
(C211-B MAIN board)
Repair of the unit
(M-4I60 printer mechanism)
Disassembly and adjusment
END
Figure 5-1. Troubleshooting Flowchart
Table 5-1. Coil Resistance for the Motors
Motor
Connector
No.
CR motor
CN14
PF motor
CN15
Rev. A
Test method
(Set the multimeter to Ohms. Be sure to
Meter
unplug the power cable from the AC inlet
reading
and disconnect the harnesses from the
MAIN board.)
Common pin :5, Place one lead to the pin 5 and the other to 5Ω ± 7%
Test pins : 1, 2 each of the test pin 1, 2, 3 and 4 to check (at 25••, per
3 and 4
the coil resistance of each phase of the phase)
motor.
Pin 1 and 3 or Place one lead to the Pin 1 or 2 and the 10Ω ±10 %
pin 2 and 4.
other to the 3 or 4 to check the coil (at 25••,)
resistance of the phase 2 of the motor.
Test pin No.
5-1
EPSON 6W\OXV &2/25 1520
Table 5-2. Sensor Status
Sensor
HP sensor
Test pin No.
Signal level
CN9/Pin 1 and Pin 2 Close (> 2.5V)
Open (< 2.5V)
Rear PE sensor
CN11/Pin 1
Open (H)
Close (L)
Front PE sensor
CN10/Pin 1
Open (H)
Close (L)
Release sensor
CN8/Pin 1
Open (H)
Close (L)
DE sensor
CN4/Pin 1
Open (H)
Close (L)
Black ink cartridge sensor CN13/Pin 1
Open (H)
Close (L)
Color ink cartridge sensor CN12/Pin 1
Open (H)
Close (L)
Cover open sensor
CN9/Pin 1
Open (H)
Close (L)
Thermistor
CN12/Pin 2
Analog data
Sensor status
In the false absorbing position
Off the false absorbing position
Paper loaded
No paper loaded
Paper loaded
No paper loaded
Friction feed mode
Tractor feed mode
CR unit is on the pump side.
CR unit is on the print side.
No black ink cartridge
Black ink cartridge installed
No color ink cartridge
Color ink cartridge installed
Cover closed
Cover opened
Approximately 10 kΩ at 24 ••
Table 5-3. Error Codes and Solutions
Printer status
Power
Pause

Cover
open

Ink end
(Black)

Ink end
(Color)

Paper
out
On
Paper out

Paper jam





Blinks
Cover open
No black ink
cartridge/black
ink end
Black ink low
No color ink
cartridge/color
ink end
Color ink low
Fatal error




On


On




Load paper and press the
Pause
and
Load/Eject
buttons.
Remove paper then press
the Pause and Load/Eject
buttons.
Close the printer cover.
Replace the ink cartridge.






Blinks


On


Get a new cartridge ready.
Replace the ink cartridge.



Blinks

Blinks


Blinks



Release
error

Blinks



Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
Blinks
Get a new cartridge ready.
Turn the printer off and
back on.
Set the release lever to the
other position then remove
the loaded paper and reset
the release lever.
Replace the Ink drain pads
and reset the EEPROM.
(Refer to Section 1.4.3 and
3.2.9.)
lever
Maintenance
requested
(ink drain pads
overflow)
5-2
Solutions
Rev. A
Troubleshooting
5.2 Unit Level Troubleshooting
This section provides flowcharts which enables you to isolate the defective unit. Once the defective unit is
identified by following the corresponding chart, refer to Section 5.3 and 5.4 to identify more specific part to
be replaced at the component level.
Table 5-4. Symptom and Problem
Symptom
Problem
Flowchart No.
The printer does not operate at all. „No LED lights up.
1
„The printer mechanism does not operate at all.
An error is indicated.
„Error is indicated by LEDs.
2
Printing operation is abnormal.
„Printing is not performed.
„Printing result is abnormal.
3
„Print quality is poor.
The
printer
feeds
paper „Paper feed is abnormal.
abnormally.
„Paper is jamming.
4
„The top edge of the paper is improperly
positioned.
Control panel operation is
„Button operation has no affect on the printer.
5
abnormal.
Rev. A
5-3
EPSON 6W\OXV &2/25 1520
1. The printer does not operate at all.
START
Is the AC
input voltage
correct?
NO
Apply the correct
AC input voltage.
YES
Has the
fuse (F1) on the
PSB/PSE board
blown?
YES
Replace the fuse and
disconnect the connector
CN2 on the PSB/PSE
board.
NO
NO
Check the voltage output
from the CN2 on the
PSB/PSE board.
Is the voltage correct?
Does the
fuse blow again
at power on?
YES
NO
YES
Replace the PSB/PSE
board.
Replace the MAIN board.
Is the problem
corrected?
YES
NO
Check the motor and
driver circuits.
(Refer to Section 5.5.)
END
Figure 5-2. Flowchart (1)
5-4
Rev. A
Troubleshooting
2. An error is indicated.
START
See Table 5-3 to identify
the error type.
Fatal error?
YES
Turn off the printer and
move the carriage manually.
NO
Is the
movement
smooth?
No ink cartridge
or
Ink low error?
YES
NO
YES
Replace the ink cartridge
with a new one.
Check the CR motor and
drivers. If they are normal,
replace the MAIN board.
NO
Release lever error?
YES
Release the release lever
and check is any paper is
loaded in the printer.
YES
NO
Maintenace error has
occurred.
YES
NO
Does the error
still occur?
NO
Is the problem
corrected?
Proceed to Section 5.5
" Repair of the printer mechanism ".
Replace the Ink drain
pads and then reset the
EEPROM.
(Refer to Section 1.4.3
and 3.2.9.)
END
Check the ink cartridge
and release sensor lever.
If they are defective,
replace them.
END
Figure 5-3. Flowchart (2)
Rev. A
5-5
EPSON 6W\OXV &2/25 1520
3. Printing operation is abnormal.
START
Perform the self-test.
Does the self
test print?
NO
Are all
connector
cables connected to
the MAIN board
securely?
YES
Is the the
print result
abnormal?
YES
NO
NO
Connect them properly.
YES
Perform the adjustments.
(Refer to Chapter 4.)
Repeat the cleaning
sequence or perform the
initial ink charge.
YES
Is the problem
corrected?
NO
Is the problem
corrected?
YES
NO
Check the motors, drivers,
and printheads.
If they are normal, replace
the MAIN board.
Proceed to Section 5.5
"Repair of the Printer
Mechanism.).
Is the problem
corrected?
NO
YES
END
END
Figure 5-4. Flowchart (3)
5-6
Rev. A
Troubleshooting
4. The printer feeds paper abnormally
START
Is paper
properly loaded in
the ASF/tractor?
NO
Load the paper properly.
YES
Is the paper
jam error
indicated?
YES
Foreign objects are located
in the paper path.
NO
Is the problem
corrected?
Check the PF motor and
driver. If they are normal,
replace the MAIN board.
Is the problem
corrected?
YES
NO
NO
Clean the PF roller and the
paepr path.
END
YES
YES
Is the problem
corrected?
NO
END
Proceed to Section 5-5
"Repair of the Printer
Mechanism.
Figure 5-5. Flowchart (5)
Rev. A
5-7
EPSON 6W\OXV &2/25 1520
5. Control panel operation is abnormal.
START
Is the control
panel properly
connected?
NO
YES
Connect the control panel
properly.
Is the problem
corrected?
YES
NO
Replace the control panel.
Is the problem
corrected?
YES
END
NO
Replace the MAIN board.
END
Figure 5-6. Flowchart (5)
5-8
Rev. A
Troubleshooting
5.3 Repair of the C172 PSB/PSE Board at Component Level
This section contains information which enables you to repair and replace the components on the
electrical board (C172 PSB/PSE). Table 5-5 lists the potential causes for each symptom in order of
possibility, with which you are able to find and repair the defective part.
Table 5-5. Component Repair of the C172 PSB/PSE Board
Symptom
The printer
does not
operate at all.
Condition
Cause
+42 VDC is Fuse (F1) is open.
not output.
Transformer (T1) is
open.
Q1 is dead.
+5 VDC is
not output.
Checkpoint
Check visually if the fuse is
normal.
Check the transformer using a
multimeter.
Check the waveform at drain.
Solution
Replace the fuse F1.
Q2 or Q3 is dead.
Check the waveform at
corrector.
Replace the Q2 or Q3.
PC1 is dead.
Check the voltage in lowering at Replace PC1.
the pin 5 or 7.
L4962 is dead.
Check the reference waveform Replace the L4962.
at the pin 5.
Replace the
transformer T1.
Replace the Q1.
Check the output waveform at
pin 7.
Rev. A
5-9
EPSON 6W\OXV &2/25 1520
5.4 Component Repair of the C211 MAIN Board
This section provides information which enables you to repair and replace defective components on the
C211-B MAIN board. Table 5-6 and 5-7 lists the causes for each symptom in order of possibility, with
which you are able to find and repair the defective part.
Table 5-6. Component Repair of the C211 MAIN Board (1)
Symptom
The printer
does not
operate at all.
Condition
Cause
CPU doesn’t
Reset circuit is
operate.
defective.
The driver
mechanism
doesn’t operate
properly at
power on/off.
Checkpoint
Solution
Check the /RESET signal at Replace the MAIN
the pin 1 and 5 V line at pin 3 board or the reset IC.
of the IC1.
Selection of ROM Check the /CS1 (Pin 1) and
Replace the MAIN
and sub gate array /CS2 (pin 2) of the CPU (IC7) board.
is abnormal.
for the change in the signal
High and Low.
CG-ROM or PROM is defective.
Replace the MAIN
board or PROM.
CPU is defective. Check the signal form of the Replace the MAIN
XTAL (pin 85) and EXTAL (pin board or CRU1.
86) of the CPU (IC7).
CR does not
operate
normally.
Replace the MAIN
CR motor
Sub gate array IC5 Check the waveforms of
does not rotate is defective.
DATA A (pin 6) or DATA B (pin board or IC17.
normally.
17) of the IC17.
DATA
PF drive output
CPU is defective.
5-10
Replace the MAIN
board.
Rev. A
Troubleshooting
Table 5-7. Component Repair of the C211 MAIN Board (2)
Symptom
CR does not
operate
normally.
Condition
Cause
CR motor
IC17 is defective.
does not
operate
CR motor is
normally.
defective.
The printer
feeds paper
abnormally.
PF motor
does not
operate
normally.
Sub gate array
IC16 is defective.
Checkpoint
Check the PF drive waveform
output from the IC17.
Check if the resistance of the
motor coil is as follows;
5Ω ± 7 % at 25••/phase
(Refer to Table 5-1.)
Check the waveform output
from PFA0/1 (Pin 1 or 2) or
PFB0/1 (Pin 23 or 24)of the
IC16.
Solution
Replace the IC17.
Replace the CR
motor.
Replace the
MAIN board.
PFA/PFB
PF drive output
CPU is defective.
Self-test does
not perform
printing.

Replace the MAIN
board.
IC16 is defective. Check the waveforrm output
Replace the MAIN
from the A (pin 6), /A (pin 3), B board.
(pin 8), or /B (pin 21) of the
IC16.
(Refer to the figure above.)
PF motor is
Check if the resistance of the
Replace the PF motor.
defective.
motor coil is as follows;
10Ω ± 10 % at 25••
(Refer to Table 5-1.)
Replace the MAIN
Sub gate array IC6 Check the waveform output
board.
is defective.
from the SBDATA (pin 24) of
the IC19 and SCDATA (pin 24)
of
the IC18 during the self-test.
SBDATA
Commono signal

CPU is defective.
Replace the MAIN
board.
Common driver IC Check the common signal
Replace the MAIN
18 and IC19 are
waveform output from the pin board or IC18 and
defective.
18, 19, or 20 of the CN13 or pin IC19.
20, 21 or 22 of the CN12.
(Refer
to the figure above.)
Printhead is
Replace the printhead.

defective.
CAUTION
EEPROM must not be replace alone.
Rev. A
5-11
EPSON 6W\OXV &2/25 1520
5.5 Repair of M-4I60 Printer Mechanism
This section provides information which allows you to repair and replace defective components of the M4160 printer mechanism. Table 5-8, 5-9, and 5-10 contain various symptoms and the corresponding
causes listed in order of possibility. Find the symptom in the table and troubleshoot the problem as
instructed.
Table 5-8. Repair of M-4I60 Printer Mechanism (1)
Symptom
CR unit
operates
abnormally.
Condition
Cause
Abnormal
Cleaner lever and
operation at CR are interfering
power on.
with each other.
Pump unit
operates
abnormally.
Abnormal
rotation of
the PF
motor at
power on.
Cam select
assembly or cam
change lever in
the CR unit is
defective.
PF motor is
defective.
Ink absorption Ink is not
is abnormal
drained
normally
during a
cleaning
sequence is
repeated.
But it does
not solve the
dot missing
problem.
Abnormal
rotation at
power on
CR motor
rotates, but
the CR unit
Does not
move.
5-12
Solution
Push the lever down
manually to clear out the
CR path.
Replace the cam select
assembly or cam change
lever in the CR unit.
Replace the PF motor.
Ink drain tube is
Place the tube properly.
caught in the
cleaner lever of the
pump unit.
The tube is
Check if the tube is securely Install the tube securely.
disconnected from installed.
the cap.
Ink drain tube is
bent or damaged.
The cap is
damaged.
The pump unit is
damaged.
CR motor
operates
abnormally
.
Checkpoint
Check if the lock of the
cleaner lever is released
when the CR is on the paper
feeding side.
Check if it’s normally
operating by performing
cleaning and paper
load/eject through the control
panel
operation.
Check if the resistance of the
motor coil is as follows;
10 Ω ± 10 % at 25 ••
(Refer to Table 5-1.)
Check if the tube is properly
led.
Head unit is
defective.
Foreign objects
are lodged in the
CR mechanism.
CR motor is
defective.
Check if the tubes in the
Replace the pump unit.
pump unit and under the cap
are deformed or damaged.
Check if the cap is damaged. Replace the pump unit.
Rotate the pump unit
manually and check if it
rotates with the constant
resistance, or check if it is
damaged.
Check if signals are
transferred to the head unit.
Check visually if foreign
objects are lodged.
Check if the resistance of the
motor coil is as follows;
5Ω •} 7% at 25•• per
phase
(Refer to Table 5-1.)
The timing belt is Check if the timing belt is at
damaged or
the specified position in the
dislocated.
CR unit.
Check if the timing belt is
deformed or some teeth are
worn or broke off.
CR motor driven
Check if the some teeth of
pulley is damaged. the pulley are missing.
Replace the pump unit.
Replace the head unit.
Remove the foreign
objects.
Replace the CR unit.
Reinstall the timing belt
properly.
Replace the timing belt.
Replace the CR motor.
Rev. A
Troubleshooting
Table 5-9. Repair of M-4I60 Printer Mechanism (2)
Symptom
CR motor
operates
abnormally
Condition
Cause
CR moves CR does not move
slightly at
smoothly.
power on
then stops.
Checkpoint
Move the CR manually and
check if the movement is
smooth.
Check if the tension of the
belt is appropriate.
Check if the PG is proper.
Printing is not
performed.
CR moves
normally, but
does not
perform
Printing.
Check if the FFC is
connected to the head and
MAIN board.
The head FFC is
disconnected from
the head or MAIN
board.
The head FFC is
damaged.
The ink cartridge is
defective.
The head is
defective.
Printing
operation is
abnormal.
A particular
dot does not
print
constantly.
Ink is not ejected
straight or dot is
missing because of
ink viscosity.
The head FFC is
disconnected from
the head or MAIN
board.
The head FFC is
damaged.
The head is
defective.
Printing isn’t Ink is not ejected
performed straight or dot is
occasionally. missing because of
ink viscosity.
The head FFC is
disconnected from
the head or MAIN
board.
The head FFC is
damaged.
The head is
defective.
Check if there is current
using the multimeter.
It might have been removed
and reinstalled several times
by the user. Therefore install
a new cartridge and run the
self-test.
Repeat cleaning at least 3
times and check if the
condition is improved. If not,
replace the head unit and run
the self-test.
Repeat cleaning sequence
and run the self-test.
Replace the head FFC.
Replace the ink
cartridge.
Replace the head unit.
Clean the head surface.
Check if the FFC is
connected to the head and
MAIN board.
Connect the FFC
securely.
Check if there is current
using the multimeter.
Repeat cleaning at least 3
times and check if the
condition is improved. If not,
replace the head unit and run
the self-test.
Repeat cleaning sequence
and run the self-test.
Connect the FFC
securely.
Replace the head unit.
Check if the FFC is
connected to the head and
MAIN board.
Check if there is current
using the multimeter.
Repeat cleaning at least 3
times and check if the
condition is improved. If not,
replace the head unit and run
the self-test.
The ink cartridge is Install a new cartridge and
defective.
run the self-test. (The
cartridge might have been
removed and reinstalled
several times by the user.)
Rev. A
Solution
Clean and lubricate the
CR guide shaft. (Refer to
Chapter 6.)
Replace the tension
spring or timing belt.
Adjust the PG. (Refer to
Chapter 4.)
Connect the FFC
securely.
Clean the head surface.
Connect the FFC
securely.
Connect the FFC
securely.
Replace the head unit.
Replace the ink
cartridge.
5-13
EPSON 6W\OXV &2/25 1520
Table 5-10. Repair of M4I60 Printer Mechanism (3)
Symptom
Printing
operation is
abnormal.
Paper is fed
abnormally.
5-14
Condition
A vertical
line is not
aligned.
White
banding
problem
occurs.
Cause
Bi-D is not properly
adjusted.
The head is
defective.
Checkpoint

Solution
Perform the adjustments.
(Refer to Chapter 4.)
Repeat cleaning at least 3
Replace the head unit.
times and check if the
condition is improved. If not,
replace the head unit and run
the self-test.
Replace the PF motor.

Paper feed
mechanism doe not
operate normally.
Outline of
Head angular is not

the image is properly adjusted.
not clear.
Color print is
abnormal.
Head gap is not

properly adjusted.
black/color head

vertical is not
properly adjusted.
The head unit is

defective.
Paper is not Foreign objects are Turn the knob and check if
fed.
lodged in the edge the paper feed mechanism is
guide, PF roller,
normally functioning.
paper guide unit,
and paper eject
drive unit.
PF motor is
Check if the resistance of the
defective.
motor coil is as follows;
10 Ω •} 10% at 25 ••
per phase
(Refer to Table 5-1.)
The top of
Micro pearl of the Check if micro pearl is
the paper is glossy film remains located on the PF roller.
not properly on the PF roller,
positioned. which gives the PF
roller less grip.
Perform the adjustment.
(Refer to Chapter 4.)
Perform the adjustment.
(Refer to Chapter 4.)
Perform the adjustment.
(Refer to Chapter 4.)
Replace the head unit.
Remove the foreign
objects.
Replace the PF motor.
Clean the PF roller.
Rev. A
CHAPTER 6
Maintenance
6.1 Cleaning ................................................................................................................6-1
6.2 Service Maintenance ............................................................................................6-2
6.2.1 Head Cleaning......................................................................................................................... 6-2
6.2.2 Maintenance Request............................................................................................................. 6-2
6.3 Lubrication and Adhesion ...................................................................................6-3
Maintenance
6.1 Cleaning
This chapter provides information on maintenance of this printer. This printer is basically designed to
require no cleaning. It is, however, preferable to perform cleaning to preserve its function and output in the
optimum quality for a long period of time. Therefore be sure to perform cleanings described in the
following sections.
WARNING
;Be sure to unplug the AC power cable before cleaning the printer.
;Be careful not to get ink in your eyes. In case ink gets in your eyes, wash it away with fresh water
and see a doctor.
;Follow the instructions below when handling the lithium battery installed on the C211 MAIN board.
„ Keep the battery away from any metal materials.
„ Ensure to mount the battery in the right direction. Otherwise it may result in explosion.
„ Do not heat up or burn the battery
CAUTION
;Never apply thinner, trichloroethilene, and toner-based solvents. Use of a soft and dry cloth is
recommended. In case stain adheres, use a cloth dumped with mild detergent.
;Do not use a hard brush for cleaning so as cases won’t be damaged.
;Be careful not to damage any interior parts when cleaning inside the printer.
CAUTION
;When transporting the printer, make sure that the ink cartridges are installed and the CR unit is
fixed.
;ASP printer mechanism is not lubricated. Therefore be sure to apply lubricants to paper eject
frame when replacing it.
Rev. A
6-1
EPSON Stylus &2/25 1520
6.2 Service Maintenance
When an abnormal printing or the maintenance request error occurs, perform maintenance service
described below.
6.2.1 Head Cleaning
In case abnormal printing result is identified, perform head cleaning sequence through the control panel
operation. The head cleaning sequence is, however, automatically performed during printing operation to
keep the printer in its best condition. The printer selects the most suitable cleaning sequence (including
Flushing operation) referring to the printer condition.
1. Press the Pause button to put the printer into off-line status. (Pause LED goes off.)
2. Press the Shift and LF/FF buttons simultaneously for 2 seconds, and the printer enters the black
cleaning mode. (Press Shift and Load/Eject buttons for the color head cleaning.) The printer
automatically exits the cleaning mode and returns to off-line status.
3. Press the Pause button after the cleaning is executed, and the printer goes into the stand-by status.
CAUTION
;Do not perform cleaning unless the printing result is obviously abnormal.
;Excessive cleaning may shorten the carriage life.
6.2.2 Maintenance Request
This printer monitors the capacity of ink drain pad for absorbing ink by counting amount of ink absorbed
from the ink cartridge. When the ink drain pads are close to capacity, the maintenance request error is
indicated. While the printer is in this status, it does not accept data from the host and any operation
through the control panel except for power on/off is also ignored. In this case, perform EEPROM reset
operation. (Refer to Section 1.4.3 in Chapter 1.)
CAUTION
;Be sure to replace the waste ink drain pads when performing EEPROM reset.
6-2
Rev. A
Maintenance
6.3 Lubrication and Adhesion
of lubricant and adhesive has a considerable affect on the performance and durability of the printer, and
specially lubrication at low temperatures r requires sensible selection of the lubricant. Therefore be sure to
apply adequate lubricant specified by EPSON based on the analysis of technical information and result
from the experimental use of lubricants and adhesives in wide range. Note the following when adhering;
„Clean the lubrication point prior to the operation.
„Lubricate the printer periodically as specified.
„Perform lubrication regardless of the specification when the printer needs oiling after cleaning,
disassembling and assembling the printer for part replacement.
„Apply adhesive at a time of assembling the printer or replacing parts. Be sure to used adequate
amount of adhesive and dry it thoroughly since overflow of surplus adhesive may cause malfunction
to nearby parts.
CAUTION
The lubricants and adhesives specified for this printer are selected based on the evaluation on the
condition that they are used for this printer. Therefore never apply items which are not specified since
use of other items might decrease printer life and printer performance.
Table 6- 1. Recommended Lubricants
Type
Grease
Oil
Adhesive
Product name
G-26
O-8
NEJI lock B1401B
Content
40 g
40 g
1000 g
Part Code
B702600001
1019753
B730200200
Applicability
EPSON-exclusive product
EPSON-exclusive product
EPSON-exclusive product
Table 6- 2. Lubrication Points and Application
Reference
No.
1
2
3
4
5
6
7
8
9
10
Rev. A
Lubrication Points
Quantity
Shafts in the sub frame assembly (3 points)
Slopes of the select cam (2 points)
Front paper guide assembly
(Sockets for the LD roller and the paper eject roller assembly,
and the shaft for the gear (11.5.) )
The shaft for the paper eject roller assembly
The sliding points of the paper eject drive unit and the PF roller
shaft
The contact surface of the base frame with the tractor release
shaft
Contact points of the CR motor with the base frame assembly
The oil pad in the CR unit
The slopes of the TR release cam
Top surface of the paper eject frame (8 points)
G-26 (3-5 g)
G-26 (3-5 g)
G-26 (3-5 g)
G-26 (3-5 g)
G-26 (3-5 g)
G-26(3-5 g)
G-26 (3-5 g)
O-8 (0.5 ml)
G-26 (3-5 g)
G-26
(10-20 mg)
6-3
EPSON Stylus &2/25 1520
Table6- 3. Adhesive Points
NO.
1
2
Adhesive Points
Contact point of the CR motor shaft with the CR motor fan
Right and left hexagon nuts on the edge guide unit
CAUTION
Do not apply too much lubricant or adhesive, as it may cause malfunction.
6-4
Rev. A
Maintenance
1
1
1
3
3
2
2
3
4
6
6
6
6
6
6
5
7
7
7
7
Figure 6-1. Lubrication Points (1)
Rev. A
6-5
EPSON Stylus &2/25 1520
8
9
10
10
10
10
10
10
10
10
Figure 6-2. Lubrication Points (2)
6-6
Rev. A
Maintenance
CR Motor
CR motor fan
1
Indent side facing outward
2
2
Figure 6-3. Adhesive Points
Rev. A
6-7
Appendix
A.1 Connector Summary........................................................................................... A-1
A.1.1 Connector Pin Assignment ...................................................................................................A-2
A.2 Circuit Diagrams ................................................................................................. A-7
A.3 Component Layout............................................................................................ A-13
A.4 Exploded Diagrams........................................................................................... A-16
A.5 Parts List............................................................................................................ A-19
A.6 Dimension and Weight...................................................................................... A-24
Appendix
A.1 Connector Summary
Figure A-1 illustrates the interconnection of the main components.
AC Input
CN1
C172 PSB/PSE
CN2
CR unit
CN2
Parallel I/F
Type-B I/F
Color CN12
CN Color Head
Monochrome CN13
CN Black Head
CN6
CN3
CN5
CN10
C211-B MAIN
Mac Serial I/F
CN11
CN1
CN8
CN4
CN9
HP Sensor
Front PE Sensor
Rear PE Sensor
Release Sensor
DE Sensor
Cover Open Sensor
CN15
PF Motor
CN14
CR Motor
CN7
Printer Mechanism
(M-4I60)
C211 PNL
Figure A-A-1. Interconnection of the Main Components
Rev. A
A-1
EPSON 6W\OXV &2/25 1520
A.1.1 Connector Pin Assignment
Table A-1 shows the locations an descriptions for the connectors on the circuit boards in this printer. Table
from A-2 to A-13 show the pin assignment for each connector.
Table A-1. Connector Summary
Circuit Board
C211 MAIN-B Board
C172 PSB/PSE Board
C172 PNL Board
A-2
Connector
No.
CN1
CN2
Pin No.
CN3
CN4
CN5
CN6
CN7
CN8
CN9
CN10
CN11
CN12
CN13
CN14
CN15
CN1
CN2
CN1
3
2
36
36
20
2
2
2
2
24
22
5
4
2
9
20
8
9
Description
Mac Serial I/F (Refer to Section 1.3.3.)
DC input from the C172 PSB/PSE board
Power off signal
HP sensor
DE sensor
Type-B I/F (Refer to Section 1.3.4.)
Parallel I/F (Refer to Section 1.3.1 and 1.3.2.)
C211 PNL Board
Release sensor
Cover open sensor
Front PE sensor
Rear PE sensor
Color head
Black head
CR motor
PF motor
AC power input
DC power input
To C211 MAIN-B board
Rev. A
Appendix
Table A-2. Connector Pin Assignment (CN2)
Pin No.
1
2
3
4
5
6
7
8
9
I/O






O


Signal Name
GND
+ 42
+ 42
GND
+5
GND
PSC
GND
+5
Description
Ground
+ 42 VDC
+ 42 VDC
Ground
+ 5 VDC
Ground
Power off signal
Ground
+ 5 VDC
Table A-3. Connector Pin Assignment (CN3)
Pin No.
1
2
3
I/O
O


Signal Name
SWA 0
+5
GND
Description
HP sensor signal
+ 5 VDC
Ground
Table A-4. Connector Pin Assignment (CN4)
Pin No.
1
2
I/O
O

Signal Name
SWA 1
GND
Description
DE sensor
Ground
Table A-5. Connector Pin Assignment (CN7)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Rev. A
I/O

I
O
O
I
I
I
O
O
O

O
O
I
I
I
I
O
O
O
Signal Name
GND
SWB1
LED9
LED8
SWB2
SWB5
SWB0
LED7
LED6
LED5
+5
LED1
LED0
SWB6
PSC
SWB3
SWB4
LED3
LED2
LED4
Description
Ground
LED 9 DATA
LED 8 DATA
LED 7 DATA
LED 6 DATA
LED 5 DATA
+ 5 VDC
LED 1 DATA
LED 0 DATA
Power scan signals
LED 3 DATA
LED 2 DATA
LED 4 DATA
A-3
EPSON 6W\OXV &2/25 1520
Table A-6. Connector Pin Assignment (CN8)
Pin No.
1
2
I/O
I

Signal Name
SWA 1
GND
Description
Release sensor signal
Ground
Table A-7. Connector Pin Assignment (CN 9)
Pin No.
1
2
I/O
I

Signal Name
SWA 0
GND
Description
Cover open sensor signal
Ground
Table A-8. Connector Pin Assignment (CN 10)
Pin No.
1
2
I/O
I

Signal Name
PE_F
GND
Description
Front PE sensor signal
Ground
Table A-9. Connector Pin Assignment (CN11)
Pin No.
1
2
I/O
I

Signal Name
PE_R
GND
Description
Rear PE sensor signal
Ground
Table A-10. Connector Pin Assignment (CN12)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
A-4
I/O
I
I

O

O

O

O

O

O





O
O
O


Signal Name
CCO
THS
GND
CHLAT
GND
CHDATA
GND
MHDATA
GND
YHDATA
GND
CHCLK
GND
CHNCHG
GND
+5
GND
GND
GND
COM
COM
COM
VHPR
VHPR
Description
Cartridge sensor signal
Thermistor signal
Ground
Latch signal
Ground
Cyan data
Ground
Magenta data
Ground
Yellow data
Ground
Clock signal
Ground
NCHG signal
Ground
Power source
Ground
Ground
Ground
Common output
Common output
Common output
Drive voltage
Drive voltage
Rev. A
Appendix
Table A-11. Connector Pin Assignment (CN13)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
I/O
I


O

O

O

O

O





O
O
O


Signal Name
BCO
GND
GND
BLAT
GND
BSI 2
GND
BSI 1
GND
BHCLK
GND
BHNCHG
GND
+5
GND
GND
GND
COM
COM
COM
VHPR
VHPR
Description
Cartridge sensor signal
Ground
Ground
Latch signal
Ground
Data
Ground
Data
Ground
Clock signal
Ground
NCHG signal
Ground
Power source
Ground
Ground
Ground
Common output
Common output
Common output
Drive voltage
Drive voltage
Table A-12. Connector Pin Assignment (CN14)
Pin No.
1
2
3
4
5
I/O
O
O
O
O

Signal Name
A
/A
B
/B
+42
Description
Phase A output
Phase / A output
Phase B output
Phase / B output
Drive signal
Table A-13. Connector Pin Assignment (CN15)
Pin No.
1
2
3
4
Rev. A
I/O
O
O
O
O
Signal Name
A
B
/A
/B
Description
Phase A output
Phase B output
Phase / A output
Phase / B output
A-5
Rev. A
1
3
4
1M/0.5W
2.5A/125V
or 250V
F1
R1
0.22U
C1
2
L
1
N
CN1
2
R2
3.9/5W
C11
100-120VAC
FG
2200P
FG
C4
220U/200V
C8
1000P
4
3
HF2022-103Y0R7
L1
2
0.1u
C2
2200P
C3
1
DB1
D2SBA60
R12
R19
20K
11EQS04
D2
0.91/2W
1000P
C31
39K
R32
Q31
K1725
4700P
C14
Q1
K2182
R18
3K
HZS9A1L
R31
IC1
TL431
10K
2
1
R13
4.7K
R20
3
R14
510
Q3
2PA1015Y
390/0.5W
R11
750K/0.5W
R21
ZD31
R16
270
R15
510
0.01U
C13
200K/0.5W
Q2
C4408
C15
2200P/1.2KV
D1
11EQS06
PC1
1
2
3
4
T1 PT-63
TLP521-2GB
8
6
7
5
6
100U
25V
C12
5
4
3
2
D51
8
9
C83
22U
50V
D52
10ELS2
D88
10ELS2
R69
2K/0.5W
R68
10K
R57
150
10
3300U/50V
C51
3300U/50V
F5KQ100
11
C55
0.1U
63V
C52
R56
150
20K
R54
ZD90
HZS36-3
R55
39K
ZD86
HZS5C-3
ZD85
HZS6C-3
ZD84
HZS5C-3
ZD83
HZS6C-3
ZD82
HZS5C-3
ZD81
HZS6C-3
ZD51
HZS5C-3
2
6
2200P
C58
R63
4.3K
D85
1SS120
CY51
DRA03TC
D81
1SS120
ZD52
HZS24-1L
ZD87
HZS24-1L
11EQS06
D86
R81
2K/0.5W
100
R82
1K
R83
C82
2.2U/50V
470U
6.3V
C54
L51
300U/1.6A
ERB83-006
D55
Q83
DTA115ES
7
Q81
D84
1SS120
Q82
DTC114YS
ZD53
HZS9A1L
5
DTA115ES
ZD89
HZS6A1L
1SS120
D82
C56
10U/50V
4
C81
0.033U
C85
390P
3
IC51 L4962E
D83
1SS120
R58
15K
1
R85
R84
39K
470K
ZD88
HZS5ALL
R86
100
FG
CN2
C84
Q84
K1398
330U/6.3V
1
2
3
4
5
6
7
8
9
GND
+42V/0.55A
+42V
GND
+5V/1.2A
GND
PSC
GND
+5V
Appendix
Figure A-A-4. C172 PSB Board Circuit Diagram
A-11
A-12
1
C8
3
4
FG
T1.25AH/250V
F1
C4
1
2
N
CN1
R12
D2
2/1W
R19
20K
11EQS04
C11
56U/400V
R2
10/5W
220-240VAC
L
2200P
FG
1M/0.5W
R1
0.22U
C1
2
1000P
4
3
HF2022-253Y0R4
L1
2
0.1u
C2
2200P
C3
1
DB1
S1VBA60
1000P
C31
39K
R32
Q31
K1725
2200P
C14
K1603
Q1
R28
R16
270
510
R15
R11
HZS9A1L
3K
TL431
IC1
10K
2
1
R13
4.7K
R20
3
R14
510
Q3
2PA1015Y
1.1K
R31
910K/0.5W
R18
220K/0.5W
R21
ZD31
C4408
4700P
C13
300K/0.5W
Q2
1000P/1.5KV
C15
8
6
7
5
6
100U
25V
C12
PC1
1
2
3
4
T1 PT-64
PS2561L1-2-V
D1
11EQS06
5
4
3
2
1
D51
8
9
C83
22U
50V
R69
2K/0.5W
R68
10K
150
D52
10ELS2
D88
10ELS2
R57
10
C55
0.1U
63V
C52
3300U/50V
C51
3300U/50V
F5KQ100
11
150
R55
39K
20K
R54
HZS36-3
ZD90
R56
ZD86
HZS5C-3
ZD85
HZS6C-3
HZS5C-3
ZD84
HZS6C-3
ZD83
ZD82
HZS5C-3
ZD81
HZS6C-3
ZD51
HZS5C-3
2
D55
D85
1SS120
1SS120
D81
D86
11EQS06
ZD52
HZS24-1L
ZD87
HZS24-1L
R81
2K/0.5W
100
DRA03TC
CY51
R82
1K
R83
C82
2.2U/50V
C54
470U
6.3V
L51
300U/1.6A
ERB83-006
Q83
DTA115ES
Q82
DTC114YS
D84
7
C58
2200P
4.3K
R63
6
HZS9A1L
5
ZD53
1SS120
DTA115ES
Q81
ZD89
HZS6A1L
1SS120
D82
C56
10U/50V
1SS120
4
C81
0.033U
390P
3
C85
D83
R58
15K
1
IC51 L4962E
R84
39K
470K
R85
HZS5ALL
ZD88
R86
100
FG
CN2
Q84
K1398
C84
330U/6.3V
1
2
3
4
5
6
7
8
9
GND
PSC
GND
+5V
+5V/1.2A
GND
GND
+42V/0.55A
+42V
EPSON 6W\OXV &2/25 1520
Figure A-A-5. C172 PSE Board Circuit Diagram
Rev. A
Appendix
A.3 Component Layout
Figure A-A-6. C211 MAIN-B Board Component Layout
Rev. A
A-13
EPSON 6W\OXV &2/25 1520
Figure A-A-7. C172 PSB Board Component Layout
A-14
Rev. A
Appendix
Figure A-A-8. C172 PSE Board Component Layout
Rev. A
A-15
EPSON 6W\OXV &2/25 1520
A.4 Exploded Diagrams
Figure A-A-9. Stylus &2/25 1520 Exploded Diagram (1)
A-16
Rev. A
Appendix
Figure A-A-10. Stylus &2/25 1520 Exploded Diagram (2)
Rev. A
A-17
EPSON 6W\OXV &2/25 1520
Figure A-A-11. Stylus Color 1520 Exploded Diagram (3)
A-18
Rev. A
Appendix
A.5 Parts List
Table A-14. Part No. Reference Table (1)
Reference No.
100
101
102
103
104
105
106
107
108
109
110
111
112
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
131
132
133
134
135
136
137
138
139
140
141
142
145
147
149
Rev. A
Description
Lower Housing
Foot
Shield Plate
Grounding Plate
Grounding Plate;B
Type-B I/F Shield Plate
Upper Housing
Paper Support
Edge Guide
Printer Cover
Printer Cover
ROM Cover
Rear Guide Sheet
Knob
Logo Plate;B
Damper Sheet
Output Tray
Stacker Support
Stacker Lever
Stacker Hook
Right Rear Edge Guide
Left Rear Edge Guide
Upper Connector Cover
Type-B Grounding Spring
Earth Spring
Waste Ink Drain Pad
Waste Ink Drain Pad
Waste Ink Drain Pad
Waste Ink Drain Pad
Clamp
Screw (CB(0))
Hexagon Nut
Screw (CP)
Screw (CBS, 3X6)
Screw (CBB, 4X20)
Screw (CBS, 3X12)
Screw (CBP Tite 3X12 F/ZN)
Screw (CBS)
Screw (CBS, 4X14)
Ferrite Core
Knob Sheet
Waste Ink Drain Pad
Connector Shield Plate
Lower Gutter Blade Guide Plate
180
183
185
186
187
188
200
Caution Label
Paper Set Label
Center Support Label
A3 Label
Adjust Lever Label
Edge Guide Label
MAIM Board Assembly
200
300
MAIN Board Assembly
PSB Board Assembly
Part Price List Name
HOUSING, LOWER
FOOT
SHIELD PLATE
GROUNDING PLATE
GROUNDING PLATE;B
SHIELD COVER, TYPE-B, I/F
HOUSING, UPPER
PAPER SUPPORT
EDGE GUIDE
COVER,PRINTER,02
COVER,PRINTER,01
COVER, ROM
SHEET GUIDE, REAR
KNOB
LOGO PLATE;B
DAMPER SHEET
STACKER
STACKER, SUPPORT
LEVER, STACKER
HOOK, STACKER
EDGE GUIDE, REAR, RIGHT
EDGE GUIDE, REAR, LEFT
COVER, CONNECTOR, UPPER
GROUNDING SPRING, TYPE-B
EARTH SPRING
POROUS PAD, INK EJECT, 1
POROUS PAD, INK EJECT, 2
POROUS PAD, INK EJECT, 3
POROUS PAD, INK EJECT, 4
CLAMP
C. B. (0) SCREW
HEXAGON NUT
C. P. SCREW
C. B. S. SCREW (M3X6)
C. B. B. SCREW (M4X20)
C. B. S-TITE SCREW (M3X12)
C. B. P-TITE SCREW, 3X12, F/ZN
C. B. S. SCREW
C. B. S. SCREW, 4X14, F/ZN
FERRITE CORE
SHEET, KNOB
POROUS PAD, INK EJECT
SHIELD PLATE, CONNECTOR
GUIDE PLATE, GUTTER BLADE,
LOWER
LABEL, CAUTION
LABEL, PAPER SET
LABEL, CENTER SUPPORT
LABEL, A3
LABEL, ADJUST LEVER
LABEL, EDGE GUIDE
BOARD ASSY., MAIN FOR USA.
S.E.ASIA, OCEANI
BOARD ASSY., MAIN FOR EUROPE
BOARD ASSY., POWER SUPPLY 9
A-19
EPSON 6W\OXV &2/25 1520
Table A-15. Part No. Reference Table (2)
Reference No.
300
330
331
400
401
402
403
410
411
412
450
500
501
502
503
504
505
506
507
508
509
513
514
515
516
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
A-20
Description
PSE Board Assembly
Connector Cable
Connector Cable
Power Cable
Power Cable
AC Cable
Power Cable
Power Cable Assembly.
Power Cable Assembly
Wire Harness
Panel Board Assembly
M-4I60 Printer Mechanism
Sub Pulley
Base Frame Assembly
PE Sensor
Left Frame Assembly
Middle Frame Assembly
Right Frame Assembly
Bottom Maim Frame
CR /Carriage
Color Head Cable
CR Slider
Head Grounding Plate
Sub Frame Assembly
Printhead
Front Paper Guide
Paper Load Roller Assembly
LD Support Roller
Rear Paper Guide
PF Support Roller Assembly
Support Driven Roller Assembly
Torsion Spring
Torsion Spring
Torsion Spring
PF Support Holder
PF Drive Roller
PF Motor Assembly
Rear PE Connector Cable
Front PE Connector Cable
HP Sensor
Connector Cable for the HP Sensor
Leaf Sensor B1
Platen Harness
Pump Assembly
Cap Assembly
Pump Mounting Plate
Screw (CBP, 3x10)
ASP Head Cleaner
CR Guide Shaft
Oil Pad
CR Motor Assembly
CR Motor Grounding Plate
CR Motor Mounting Plate
CR Motor Fan
CR Damper
CR Shaft Damper B
Part Price List Name
BOARD ASSY., POWER SUPPLY
99
HARNESS
HARNESS
POWER CABLE (VD31303SA-10A)
POWER CABLE (BS31303SA-SR-10A)
AC CABLE
POWER CABLE
POWER CABLE ASSY.
POWER CABLE ASSY.
WIRE HARNESS
BOARD ASSY. PANEL
PRINTER MECHANIS, M-4I60
PULLEY, DRIVEN ; B
FRAME ASSY., BASE
DETECTOR, PE
FRAME ASSY., LEFT
FRAME ASSY., MIDDLE
FRAME, MAIN, RIGHT
FRAME, MAIN, BOTTOM
CARRIAGE
CABLE, HEAD, YMC
SLIDER, CR
GROUNDING PLATE, HEAD
FRAME ASSY., SUB
PRINT HEAD, IJ192-0A0
PAPER GUIDE, FRONT
ROLLER ASSY., PAPER LOAD
ROLLER, PAPER LOAD, SUPPORT
PAPER GUIDE, REAR
ROLLER ASSY., PF, SUPPORT
ROLLER ASSY., DRIVEN, SUPPORT
TORSION SPRING, 675.2
TORSION SPRING, 908.5
TORSION SPRING, 728.1
HOLDER, PF, SUPPORT
ROLLER PF, DRIVE
MOTOR ASSY., PF
HARNESS, PE, REAR
HARNESS, PE, FRONT
DETECTOR, HP
HARNESS HP
DETECTOR, LEAF, B1
HARNESS, PLATEN
PUMP ASSY.
CAP ASSY.
MOUNTING PLATE, PUMP
C. B. P-TITE, 3X10, F/ZN
CLEANER, HEAD, ASP
SHAFT, CR GUIDE
OIL PAD
MOTOR ASSY., CR
GROUNDING PLATE, CR, MOTOR
MOUNTING PLATE, CR MOTOR
FAN MOTOR, CR
DAMPER, CR
SHAFT DAMPER, CR;B
Rev. A
Appendix
Table A-16. Part No. Reference Table (3)
Reference No.
552
553
554
555
556
557
558
559
560
563
564
567
568
569
572
573
574
575
576
587
588
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
610
613
616
617
620
621
623
624
625
626
627
629
630
631
632
633
634
635
Rev. A
Description
Paper Load Guide Frame
Driven Roller Assembly
Driven Roller Assembly B
Parallelism Adjust Bushing
Change Lever Bushing
Paper Eject Holder Assembly D
Paper Eject Holder Assembly B
Paper Eject Frame
Paper Eject Roller
Paper Eject Roller Assembly
Paper Out Clutch
Paper Eject Holder Assembly C
Paper Eject Holder Assembly
Paper Eject Holder Assembly B
Middle Edge Guide Assembly
Edge Guide Label
Right Edge Guide Assembly
Left Edge Guide Assembly
Hopper Assembly
Pump Cap Mounting Plate Assembly
Pad Holder Assembly
Cam Select Assembly
Tractor Assembly
Left Tractor
Right Tractor
Paper Support
Tractor Drive Shaft
Tractor Guide Shaft
Left Tractor Frame
Right Tractor Frame
Gear 25
Timing Belt
Printhead
Connector Cable for the DE Sensor
DE Gear Bushing
FFC Holder
FFC Holder
Anti Static Bush
PG Adjust Lever
Left Ink Drain Pad
Ink Pad Cover
Black Cable Head
Cam Change Lever
Change Lever Spring
Release Lever
Tractors Release Cam
Tractor Release Shaft
Tractor Support Release Cam
Roller Grounding Spring
Trigger Lever
Transmission Release Lever
ASF Release Shaft Bushing
ASF Release Cam
Transmission ASF Ratchet
Clutch Cam
Damper
Part Price List Name
FRAME, GUIDE, LD
ROLLER ASSY., DRIVEN
ROLLER ASSY., DRIVEN;B
BUSHING, PARALLEL, ADJUST
BUSHING, LEVER, CHANGE
HOLDER ASSY., EJ DOUBLE;D
HOLDER ASSY., EJ, DOUBLE;B
FRAME, EJ
ROLLER, EJ
ROLLER ASSY., EJECT OUT
CLUTCH, EJECT OUT
HOLDER ASSY., EJ DOUBLE;C
HOLDER ASSY., EJECT OUT, DOUBLE
HOLDER ASSY., EJECT OUT, DOUBLE;B
EDGE GUIDE ASSY., MIDDLE
LABEL, EDGE GUIDE
EDGE GUIDE ASSY., RIGHT
EDGE GUIDE ASSY., LEFT
HOPPER ASSY.
MOUNTING PLATE ASSY., PUMP, CAP
HOLDER ASSY., PAD
SELECT ASSY., CAM
TRACTOR ASSY.
TRACTOR, LEFT
TRACTOR, RIGHT
PAPER SUPPORT
SHAFT, TRACTOR, DRIVE
SHAFT, TRACTOR, GUIDE
FRAME, TRACTOR, LEFT
FRAME, TRACTOR, RIGHT
SPUR GEAR, 25
TIMING BELT
PRINT HEAD, IJ128-0A0
HARNESS, DE
BUSHING, GEAR, DE
FFC, HOLDER
FFC, HOLDER, B
ANTI-STATIC BRUSH
LEVER, PG, ADJUST
POROUS PAD, LEFT
COVER, POROUS PAD
CABLE, HEAD, BK
LEVER, CHANGE, CAM
SPRING, LEVER, CHANGE
LEVER, RELEASE
CAM, RELEASE, TR
SHAFT, RELEASE, TR,
CAM, RELEASE, TR, SUPPORT
SPRING, ROLLER GROUND
LEVER, TRIGGER
LEVER, RELEASE, TRANSMISSION;B
BUSHING, SHAFT, RELEASE, ASF
CAM, RELEASE, ASF
RATCHET, ASF, TRANSMISSION
CAM, CLUTCH
ROTARY, DAMPER
A-21
EPSON 6W\OXV &2/25 1520
Table A-17. Part No. Reference Table (4)
Reference No.
636
637
640
641
642
643
644
648
649
650
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
677
678
679
681
682
683
684
685
686
687
688
689
690
696
697
698
699
700
701
702
704
A-22
Description
Right Slide Cover
Left Slide Cover
Paper Load Shaft
Guide Edge Shaft
ASF Release Shaft
Platen Shaft Holder
Platen Shaft holder
Wire Saddle
Bushing 6
Gear 16
Gear 11.4
Combination Gear 13.8, 11
Gear 17
Gear 12
Combination Gear 22, 8.4
Gear 8
Combination Gear 48, 45
Gear 33.6
Gear 24
Gear 29
LD Gear
Gear 14.5
Gear 40
Gear 46
Compression Spring 1.96
Gear 16.5
Compression Spring 450
Compression Spring 0.39
Extension Spring 23.2
Compression Spring 0.65
Extension Spring 7.63
Compression Spring 1.13
Compression Spring 2.16
Extension Spring 0.698
Plain Washer
Plain Washer
Plain Washer
Plain Washer 6.1X0.3X12, L/NA
Plain Washer 4.2X0.3X8, L/N
Plain Washer, 3X0.5X8 F/ZN
Plain Washer 5.32X0.6X17.6 F/ZN
Leaf Spring
Spring Pin
Ball Bearing
Hexagon Nut
Flange Nut
Plain Washer
Retaining Ring
Retaining Ring
Retaining Ring
Retaining Ring
Retaining Ring
Cup Screw
Screw (CBS)
Screw (CBP, 3x8)
Part Price List Name
COVER, SLIDE, RIGHT
COVER, SLIDE, LEFT
SHAFT, LD
SHAFT, EDGE GUIDE
SHAFT, RELEASE, ASF
PLATEN SHAFT HOLDER
PLATEN SHAFT HOLDER
WIRE SADDLE
BUSHING, 6
SPUR GEAR, 16
SPUR GEAR 11.4
COMBINATION GEAR, 13.8, 11
SPUR GEAR, 17
SPUR GEAR, 12
COMBINATION GEAR, 22, 8.4
SPUR GEAR, 8
COMBINATION GEAR, 48, 45
SPUR GEAR, 33.6
SPUR GEAR, 24
SPUR GEAR, 29
GEAR, LD
SPUR GEAR, 14.5
SPUR GEAR, 40
SPUR GEAR, 46
COMPRESSION SPRING, 1.96
SPUR GEAR, 16.5
COMPRESSION SPRING, 450
COMPRESSION SPRING, 0.39
EXTENSION SPRING, 23.2
COMPRESSION SPRING, 0.65
EXTENSION SPRING, 7.63
COMPRESSION SPRING, 1.13
COMPRESSION SPRING, 2.16
EXTENSION SPRING, 0.698
PLAIN WASHER
PLAIN WASHER
PLAIN WASHER
PLAIN WASHER, 6.1X0.3X12, L/NA
P. W. , 4.2X0.3X8, L/N
PLAIN WASHER, 3X0.5X8, F/ZN
PLAIN WASHER, 5.2X0.6X17.6, F/ZN
LEAF SPRING
SPRING PIN
BALL BEARING
HEXAGON NUT
FLANGE NUT
PLAIN WASHER
RETAINING RING
RETAINING RING
RETAINING RING
RETAINING RING
RETAINING RING
CUP SCREW
C. B. S. SCREW
C. B. P-TITE SCREW, 3X8, F/Z N
Rev. A
Appendix
Table A-18. Part No. Reference Table (5)
Reference No.
706
707
709
715
717
718
719
720
721
722
723
728
729
730
731
732
733
734
735
737
738
739
Rev. A
Description
Screw (CBS 2X6)
PE Sensor ;B
HP Sensor Holding Plate
Head Cable Guide
Drive Spur Gear Bushing
Oil Pad
CR Felt Leaf Spring
CD SW Harness
CR Mount Shaft
Top LD Guide
Gear 16.5
Black Head Adjust Lever
Color Head Adjust Lever
Black Cartridge Cover
Color Cartridge Cover
Black Cartridge Separator
Color Cartridge Separator
Compression Spring 9.9
Head Fasten Screw
Adjust Lever
Driven Roller Assembly C
Connector Switch B
Part Price List Name
C. B. S. SCREW, 2X6, F/ZN
DETECTOR, PE;B
HOLDING PLATE, HP DETECT
GUIDE, CABLE, HEAD
BUSHING, SPUR GEAR, DRIVE
OIL PAD;C
LEAF SPRING, CR FELT
HARNESS, CD SW
SHAFT, MOUNT, CR
GUIDE, LD, TOP
SPUR, GEAR, 16.5
LEVER, HEAD ADJUST, BK
LEVER, HEAD ADJUST, C
COVER, CARTRIDGE, BK
COVER CARTRIDGE, C
SEPARATOR, CARTRIDGE, BK
SEPARATOR, CARTRIDGE, C
COMPRESSION SPRING, 9.9
SCREW, HEAD FASTEN
LEVER, ADJUST
ROLLER ASSY.,DRIVEN;C
CONNECTOR SWITCH;B
A-23
EPSON 6W\OXV &2/25 1520
A.6 Dimension and Weight
‰Dimension
‰Weight
:666 mm (W) X 554 mm (D) X 202 mm (H)
26.2 inch (W) X 21.8 inch (D) X 7.9 inch (H)
:6.5 Kg
554
Figure A-12 illustrates the exterior dimension of the Stylus COLOR 1520.
666
695
202
Figure A-12. Dimension of the Stylus COLOR 1520
A-24
Rev. A
EPSON OVERSEAS MARKETING LOCATIONS
EPSON AMERICA, Inc.
EPSON DEUTCHLAND GmBH
20770 Madrona Avenue,
P.O. Box 2842
Torrance, CA 90509-2842
Phone: (800)922-8911
Fax: (310)782-5220
EPSON UK LTD.
Zülpicher Straße 6, 4549 Düsseldorf
Germany
Campus 100, Maylands Avenue,
Hemel Hempstead, Herts, HP2 7TJ
U.K.
Phone: (+44)01442-61144
Fax: (+44)01442-227227
EPSON IBERICA, S.A.
68 bis, rue Marjolin 92300,
Levallois-Perret
France
Phone: (1)4087-3737
Telex: 610657
EPSON ITALIA S.P.A.
Avda. de Roma, 18-26
08290 Cerdanyola del Valles
Balcerona, Spain
Phone: 582.15.00
Fax: 582.15.55
EPSON AUSTRALIA PTY. LIMITED
V. le F. lli Casiraghi, 427
20099 Sesto S. Giovanni MI
Italy
Phone: 2-262331
Fax: 2-2440750
EPSON SINGAPORE PTE. LTD.
1/70 Gibbes Street,
Chatswood 2067 NSW
Australia
Phone: 2-9903-9000
Fax: 2-9903-9177
EPSON HONG KONG LTD.
No.1 Temasek Avenue #36-00
Millenia Tower
Singapore 039192
Phone: (065)3377911
Fax: (065)3341185
EPSON TAIWAN TECHNOLOGY &
TRADING LTD.
Rooms 4706-10, 47/F
China Resource Bldg.
26 Harbour Road, Wanchai, Hong Kong
Phone: 2585-4300
Fax: 2827-7083
EPSON PORTUGAL, S.A.
Phone: (0211)56030
Telex: 8584786
EPSON FRANCE S.A.
10F, No. 287 Nonking E. Road, Sec. 3,
Taipei, Taiwan, R.O.C.
Phone: (02)717-7360
Fax: (02)712-9164
R. do Progresso, 471, 1° Perafita
4460 Matosinhos, Portugal
Phone: (02)996 14 02
Fax: (02)996 14 11
SEIKO EPSON CORPORATION
Imaging & Information Products Division
80 Harashinden, Hirooka, Shiojiri-Shi, Nagano-Ken 399-07 JAPAN
Phone: 0263-52-2552
Fax: 0263-54-4007
As of September, 1996
EPSON
SEIKO EPSON CORPORATION
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