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6(59,&( 0$18$/
Color Inkjet Printer
EPSON Stylus Photo 1200
®
SEIJ98007
Notice
All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION. All effort 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. The contents of this manual are subject to change without notice. All effort 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. The above not withstanding SEIKO EPSON CORPORATION 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 purpose only and may be trademarks or registered trademarks of their respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 1998 SEIKO EPSON CORPORATION. Printed in Japan.
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.
DANGER
Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings. Signals a precaution which, if ignored, could result in damage to equipment.
WARNING
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM 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.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES 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.
About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus Photo 1200. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.
Contents
This manual consists of six chapters and Appendix. CHAPTER 1. PRODUCT DESCRIPTIONS Provides a general overview and specifications of the product. CHAPTER 2. OPERATING PRINCIPLES Describes the theory of electrical and mechanical operations of the product. CHAPTER 3. TROUBLESHOOTING Provides the step-by-step procedures for the troubleshooting. CHAPTER 4. DISASSEMBLY AND ASSEMBLY Describes the step-by-step procedures for disassembling and assembling the product. CHAPTER 5. ADJUSTMENTS Provides Epson-approved methods for adjustment. CHAPTER 6. MAINTENANCE Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product. APPENDIX Provides the following additional information for reference: · Connector pin assignments · Electric circuit boards components layout · Exploded diagram · Electrical circuit boards schematics
Symbols Used in This Manual
Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read WARNING, CAUTION or NOTE messages. Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.
C A U T IO N
Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment. May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.
C H E C K P O IN T
Revision Status
Revision
Rev. A
Issued Date
January 11, 1999 First release
Description
EPSON Stylus Photo 1200
Revision A
Table of Contents
Product Description
Overview......................................................................................................... 8 General Characteristics............................................................................. 8 Basic Specification ......................................................................................... 8 Interface........................................................................................................ 11 Operation Specification ................................................................................ 11 Major Components ....................................................................................... 12 Consumables................................................................................................ 12
Operating Principles
Overview....................................................................................................... 14
Troubleshooting Disassembly and Assembly Adjustment
Overview....................................................................................................... 20 Adjustments............................................................................................. 20 Adjustment Program..................................................................................... 21 Activatioin of Program ............................................................................. 21
Maintenance Appendix
Exploded Diagram ........................................................................................ 26 Circuit Boards ............................................................................................... 32
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PRODUCT DESCRIPTION
EPSON Stylus Photo 1200
Revision A
1.1 Overview
Stylus Photo 1200 is 127 digits color ink jet printer whose function and characteristics are based on Stylus Photo 750. Therefore, since only revised points for Stylus Photo 1200 are explained in this manual, refer to the Service Manual of Stylus Photo 750 for the rest of information.
1.2 Basic Specification
PAPER SPECIFICATION Paper Size ,, Cut Sheet A3 (297mm x 420mm) B (279mm x 432mm) B4 (257mm x 364mm) ,, Envelope 220 x 132 (220mm x 132mm) ,, EPSON Special Media (Photo Quality Ink Jet Paper, 360 dpi Ink Jet Paper, Photo Qualtiy Glossy Film, Photo Paper) A3+ (329mm x 483mm) B (279mm x 432mm) B4 (257mm x 364mm)
1.1.1 General Characteristics
High Color Print Quality ,, 1440(H) x 720(V) dpi printing ,, 6-Color printing(YMCKcm) ,, Traditional and New Microweave Built-in auto sheet feeder ,, Holds 100 cut-sheets (64 g/m2) ,, Holds 10 envelopes ,, Holds 30 transparency films Built-in 3 I/F ,, Mac. serial I/F (up to approx. 1800kbps) ,, Bi-directional parallel I/F(IEEE-1284 level 1 device) ,, USB Windows/Macintosh exclusive
NOTE: Other paper specification is same as EPSON Stylus Photo 750.
CHARACTER TABLES 2 international character sets PC 437 (US, Standard Europe) PC 850 (Multilingual) TYPE FACE Bit map LQ font: EPSON Courier 10 CPI
Product Description
Overview
8
EPSON Stylus Photo 1200
Revision A
PRINTABLE AREA Printable area is as follows.
Figure 1-1. Printable Area Table 1-1. Printable Area(mm)
Paper Size A3+ A3 Paper Width (PW) 329 297 Paper Length (PL) 483 420 Left Margin (LM) More than 3 Right Margin (RM) More than 3 Top Margin (TM) More than 3 Bottom Margin (BM) 14 or more than 3
Product Description
Basic Specification
9
EPSON Stylus Photo 1200
Revision A
INK Color Ink Cartridge ,, Type: ,, Color: Exclusive cartridge Magenta, Cyan, Yellow, Light Ma, Light Cyan
PHYSICAL SPECIFICATION Dimension: Weight: 578mm(W) x 286mm(D) x 175mm(H) 7 Kg
,, Print Capacity:330 pages/A4 (360 dpi, 5% duty each color) ,, Ink life: 2 years from production date
,, Storage Temperature - 20 °C 40 °C (Storage, within a month at 40 °C) - 30 °C 40 °C (Packing storage, within a month at 40 °C) - 30 °C 60 °C (Transit, within 120 hours at 60 °C and within a month at 40 °C) ,, Dimension: 42.9mm (W) x 52.7mm (D) x 38.5mm (H)
NOTE: Ink cartridge can not re-fill, only ink cartridge is prepared for article of consumption. Do not use the ink cartridge which was passed away the ink life. Ink will be frozen under - 4 °C environment, however it will be usable after placing it more than 3 hours at room temperature. NOTE: Specification of black ink cartridge is same as Stylus Photo 750.
Figure 1-2. Exterior View of Stylus Photo 1200
Product Description
Basic Specification
10
EPSON Stylus Photo 1200
Revision A
1.3 Interface
Stylus Photo 1200 is equipped with the same interfaces as Stylus Photo 750. Therefore, refer to the Service Manual of Stylus Photo 750 for interface specificaton. IEEE-1284 Nibble Mode Parallel I/F Serial I/F(RS-423) Universal Serial Bus Specification Revision 1.0
1.4 Operation Specification
Although the specification and function of buttons and LED lighjts are the same as those of Stylus Photo 750, the panel layout is different. See the figure below.
LED(Paper Out) Load/Eject
LED(Power) LED (Black Ink out)
sp02
LED(Color Ink Out) Cleaning Power
Figure 1-3. Control Panel
Product Description
Interface
11
EPSON Stylus Photo 1200
Revision A
1.5 Major Components
Major components which consist Stylus Photo 1200 are as follow. Control Board: C264 Main or C259 Main Board (Circuit and pattern are same in the both boards, but connector shapes are different)
1.6 Consumables
Consumable of this printer are as follow. Table 1-2. Consumables
Code No. S020187 T001011, T001051, T001091, T001311 Name Black ink cartridge Color ink cartridge
Power Supply Board: C257 PSB Board (same board used in Stylus Photo 750) Control Panel: Printer Mechanism: C206 PNL Board (same PNL board used in Stylus Photo EX) M-4N60
NOTE: Color ink cartridge for Stylus Photo 750 can not be used for Stylus Photo 1200.
Product Description
Major Components
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OPERATING PRINCIPLES
EPSON Stylus Photo 1200
Revision A
2.1 Overview
Comparing with Stylus Photo750, following points in Stylus Photo1200 are different from Stylus Photo 750. Printer Mechanism ,, Since Stylus Photo1200 can deal with A3+ size, mechanism is extended from 80 digits to 127 digits. ,, Size of color ink cartridge is changed, since the color ink life is improved. Electric Circuit ,, Circuit component of Stylus Photo1200 is same as that of Stylus Photo 750. ,, Control panel board(C206 PNL Board) is also used for Stylus Photo EX and Stylus Color 400. Therefore, since the printer mechanism and electric circuit of Stylus Photo 1200 are basically same as those of Stylus Photo 750, refer to the Service Manual of Stylus Photo 750 for more details.
Operating Principles
Overview
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TROUBLESHOOTING
EPSON Stylus Photo 1200
Since EPSON Stylus Photo 1200 is a ink jet printer based on the function and characteristics of ESPON Stylus Photo 750, refer to the Service Manual of EPSON Stylus Photo 750 for troubleshooting.
Revision A
Troubleshooting
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DISASSEMBLY AND ASSEMBLY
EPSON Stylus Photo 1200
Since the basic component of EPSON Stylus Photo 1200 is same as that of EPSON Stylus Photo750, refer to the Service Manual of EPSON Stylus Photo 750 for disassembly and assembly procedures.
Revision A
Disassembly and Assembly
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ADJUSTMENT
EPSON Stylus Photo 1200
Revision A NOTE: 2.Initial ink charge should be done after installing the new ink cartridge.
5.1 Overview
This section will explain required adjustment procedures for this printer after disassembling or replacing parts.
5.1.1 Adjustments
Since the basic components and function of this printer is same as those of Stylus Photo 750, both printers share the same adjustment items. Therefore, adjustment items only for Stylus Photo 1200 are explained here. Table 5-1. Required Adjustments
Priority order Procedure/ Replacing parts Printer Mechanism Exchange Control Board Exchange Print Head Exchange CR Motor Exchange Carriage Assembly Removal/ Exchange Roller Assembly/ Removal/Exchage 1 Paper Gap Adjustment 2 Ink initial charge O 3 Head ID Writing 4 Head Angular Adjustment --5 Bi-D Adjustment
A c tiv a te A d ju s tm e n t P ro g ra m S c re e n in d ic a te s p rin te r m o d e ls to s e le c t Y e s S e le c t th e p rin te r m o d e l n a m e S c re e n in d ic a te s d e s tin a tio n s to s e le c t W ritin g to E E P R O M M o d e l n a m e is a c q u ire d . S c re e n in d ic a te s to p e rfo rm p ro g ra m w ith s e le c te d p rin te r m o d e l Y e s A d ju s tm e n t p ro g ra m is a c tiv a te d . E n d N o N o
--
O
O
-----
O O ---
O O ---
O O ---
O --O
O
---
---
O
O
O
---
---
---
---
NOTE: 1. "O" means adjustment is required. "---" means adjustment is not required.
Figure 5-1. Flow Chart
Adjustment
Overview
20
EPSON Stylus Photo 1200
Revision A
5.2 Adjustment Program
A u to
P ro m p t S P 7 5 1 2 0 0
Exclusive adjustment program is necessary in this section. This interface improved user interfance and became easier to use than the previous programs. Comparing with the adjustment of Stylus Photo750, only modified or changed points are explained here.
5.2.1 Activatioin of Program
1. Turn off both printer and host computer, and connect them with parallel interface cable. 2. Turn on the printer and host computer. 3. Make a folder in the host computer and save the file of adjustment program in that folder. Or, insert the disk of the adjustment program into the disk drive. 4. Run the program on the DOS Prompt of the Windows. The following screnn (See Figure 5-2) will appear. 5. Select "Stylus Photo 1200" by using key and press "Enter" key. Then, the screen for destination (See Figure 5-3) will appear.
Figure 5-2. First Screen of Adjustment Program
P ro m p t S P 7 5 1 2 0 0
A u to
Figure 5-3. Destination Selection
Adjustment
Adjustment Program
21
EPSON Stylus Photo 1200
6. Select "World" and press "Enter" key. The screen like figure 5-4 will appear. 7. Select "Perform (Boot this PROGRAM). Refer to the Service Manaul of Stylus Photo 750 for the rest of adjustment procedures.
Revision A
P ro m p t S P 7 5 1 2 0 0
A u to
Figure 5-4. Starting the Program
Adjustment
Adjustment Program
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MAINTENANCE
EPSON Stylus Photo 1200
Since the basic component of EPSON Stylus Photo 1200 is same as that of EPSON Stylus Photo750, refer to the Service Manual of EPSON Stylus Photo 750 for maintenance.
Revision A
Maintenance
24
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APPENDIX
EPSON Stylus Photo 1200
Revision A
7.1 Exploded Diagram
B
B
Figure 7-1. Exploded Diagram (1)
Appendix
Exploded Diagram
26
EPSON Stylus Photo 1200
Revision A
D
Figure 7-2. Exploded Diagram(2)
Appendix
Exploded Diagram
27
EPSON Stylus Photo 1200
Revision A
H
J
I I
A
D A
H
C
Figure 7-3. Exploded Diagram(3)
Appendix
Exploded Diagram
28
EPSON Stylus Photo 1200
Revision A
E
K J
C
L
K
L
Figure 7-4. Exploded Diagram (4)
Appendix
Exploded Diagram
29
EPSON Stylus Photo 1200
Revision A
F F G
E
G
Figure 7-5. Exploded Diagram (5)
Appendix
Exploded Diagram
30
EPSON Stylus Photo 1200
Revision A
Figure 7-6. Exloded Diagram (Packing)
Appendix
Exploded Diagram
31
EPSON Stylus Photo 1200
Revision A
7.2 Circuit Boards
There are 2 kinds of main boards for this printer; C259 Main Board and C264 Main Board. C259 Main Board and C257 PSB Power Supply Circuit are used for Stylus Photo750. C206 PNL Control Panel Board is common with Stylus Color400 and Stylus Photo EX. Therefore, refer to the corresponding Service Manual for each circuit diagram.
C A U T IO N
C259 Main Board and C264 Main Board have same circuit and pattern. However, the connector shape with other elements is different, be careful of its selection.
Appendix
Circuit Boards
32
6(59,&(#0$18$/
Color Inkjet Printer
EPSON Stylus Photo 750
®
SEIJ98005
Notice
All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION. All effort 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. The contents of this manual are subject to change without notice. All effort 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. The above not withstanding SEIKO EPSON CORPORATION 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 purpose only and may be trademarks or registered trademarks of their respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 1998 SEIKO EPSON CORPORATION. Printed in Japan.
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.
DANGER
Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings. Signals a precaution which, if ignored, could result in damage to equipment.
WARNING
The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM 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.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES 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.
About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus Photo 750. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.
Contents
This manual consists of six chapters and Appendix. CHAPTER 1. PRODUCT DESCRIPTIONS Provides a general overview and specifications of the product. CHAPTER 2. OPERATING PRINCIPLES Describes the theory of electrical and mechanical operations of the product. CHAPTER 3. TROUBLESHOOTING Provides the step-by-step procedures for the troubleshooting. CHAPTER 4. DISASSEMBLY AND ASSEMBLY Describes the step-by-step procedures for disassembling and assembling the product. CHAPTER 5. ADJUSTMENTS Provides Epson-approved methods for adjustment. CHAPTER 6. MAINTENANCE Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product. APPENDIX Provides the following additional information for reference: · Connector pin assignments · Electric circuit boards components layout · Exploded diagram · Electrical circuit boards schematics
Symbols Used in This Manual
Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read WARNING, CAUTION or NOTE messages.
W A R N IN G
Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life. Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment. May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.
C A U T IO N
C H E C K P O IN T
Revision Status
Revision
Rev. A Rev. B
Issued Date
December 14, 1998 July 30, 1999 First Release Revise Page 85, 106
Description
Stylus Photo 750
Revision A
Table of Contents
Product Description
Overview......................................................................................................... 4 General Characteristics............................................................................. 4 General Description........................................................................................ 5 Printing ...................................................................................................... 5 Paper Feeding........................................................................................... 6 Paper Specification ................................................................................... 6 Printable Area............................................................................................ 7 Adjust Lever Settings ................................................................................ 8 Environmental Conditions ......................................................................... 9 Ink Cartridge............................................................................................ 10 Input Data Buffer ..................................................................................... 11 Electric Specification ............................................................................... 11 Reliability ................................................................................................. 11 Safety Approvals ..................................................................................... 11 Acoustic noise ......................................................................................... 11 CE Marking.............................................................................................. 12 Printer Language and Emulation............................................................. 12 Parallel Interface........................................................................................... 14 Parallel Interface(Forward channel) ........................................................ 14 Parallel Interface(Reverse channel) ........................................................ 15 Serial Interface ........................................................................................ 18 USB(Universal Serial Bus) Interface ....................................................... 19 Prevention of data transfer time-out on the host ..................................... 20 Interface selection ................................................................................... 20 IEEE 1284.4 protocol .............................................................................. 20 Function........................................................................................................ 21 Control Code ........................................................................................... 21 Bi-directional Command .......................................................................... 21 Control Panel........................................................................................... 21 Special Setting Mode .............................................................................. 22 LED Indications ....................................................................................... 22 Errors....................................................................................................... 23 Initialization.............................................................................................. 24 Initialization Setting ................................................................................. 25 Physical Specification.............................................................................. 25 Consumables and options....................................................................... 26
Operating Principles
Overview ...................................................................................................... 28 Printer Mechanism .................................................................................. 28 Operating Principles of Electric Circuit ......................................................... 30 C257 PSB Power Supply Circuit ............................................................. 30 C259 Main Control Circuit ....................................................................... 32
Troubleshooting
Overview ...................................................................................................... 39 Unit Level Troubleshooting........................................................................... 41 Unit Repair (Power Supply Board) ............................................................... 44 Repair of the Control Board.......................................................................... 45 Unit Repair (Printer Mechanism) .................................................................. 47
Disassembly and Assembly
Overview ...................................................................................................... 51 Precautions ............................................................................................. 51 Tools ....................................................................................................... 51 Work Completion Check ......................................................................... 52 Disassembly ................................................................................................. 53 Housing Removal .................................................................................... 54 Circuit Boards Removal .......................................................................... 55 Control Panel Removal ........................................................................... 57 Absorber Tray, Assembly;A Removal ..................................................... 58 Printer Mechanism Removal ................................................................... 59
Adjustment
Overview ...................................................................................................... 77 Required Adjustment............................................................................... 77 Adjustment ................................................................................................... 78
1
Stylus Photo 750
Paper Gap Adjustment ............................................................................ 78 Adjustment by Adjustment Program ............................................................. 80 Adjustment Program................................................................................ 80 Setting Destination Information ............................................................... 82 Head Voltage ID Adjustment ................................................................... 83 Head Angular Adjustment ....................................................................... 84 Bi-D Adjustment ...................................................................................... 86 Head Cleaning......................................................................................... 87 Initial Ink Charge .................................................................................... 88 Counter Value for Ink Absorber............................................................... 89
Revision A
Maintenance
Overview....................................................................................................... 91 Cleaning .................................................................................................. 91 Service Maintenance............................................................................... 91 Lubrication............................................................................................... 92
Appendix
Connector Summary..................................................................................... 97 Major Component Unit ............................................................................ 97 Component Layout ..................................................................................... 100 Exploded Diagram ...................................................................................... 102 Electric Circuit............................................................................................. 105
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PRODUCT DESCRIPTION
EPSON Stylus Photo 750
Revision A
1.1 Overview
This printer has better mechanism for the print quality and paper feeding than that of Stylus Photo and Stylus Photo 700. It also uses new print head and improved printing speed and through put.
1.1.1 General Characteristics
Major features of this printer are as follows; High quality color printing ,, Bi-directional printing at the resolution of 720 dpi. ,, 1440 (H) x 720 (V) dpi printing ,, Photo-MACH technology (6 color printing. CMYKcm) ,, Super micro dot, Super micro weave printing Built-in auto sheet feeder ,, Holds 100 cut-sheet (55g/m2) ,, Holds 10 envelopes ,, Holds 10 transparency films ,, Holds 65 sheets of special paper Built-in 3 I/Fs ,, Bi-directional parallel I/F (IEEE-1284 level 1 device) ,, Mac serial I/F(up to approx.1.8Mbps) ,, USB I/F Windows/Macintosh exclusive Figure 1-1. Exterior View of Stylus Photo 750
Product Description
Overview
4
EPSON Stylus Photo 750
Revision A
1.2 General Description
1.2.1 Printing
PRINTING METHOD On demand ink jet NOZZLE CONFIGURATION 48 nozzles x 6 (Black, Cyan, Magenta, Yellow, Light Cyan, Light Magenta)
PRINTING SPEED AND PRINTABLE COLUMNS Character mode Table 1-1. Printing Speed
Character Pitch 10 CPI (Pica) Printable columns 80 LQ speed 200CPS**
** This value is the speed of one print-pass in which the 1/3 of character matrix is printed. Raster graphics mode Table 1-2. Raster Graphics Mode
Horizontal resolution 180 dpi 360 dpi Printable area 8.26 inch 8.26 inch 8.26 inch Available dot 1488 2976 5952 CR Speed 20 IPS 20 IPS 20 IPS
# 4 8
0 .2 1 2 m m
(3 /3 6 0 ")
720 dpi
# 1
CONTROL CODE ESC/P Raster
B k C y a n L C M L M Y
EPSON Remote command
s p 0 2
Figure 1-2. Nozzle Configuration PRINTING DIRECTION Bi-direction with logic seeking
CHARACTER TABLES 2 international character sets ,, PC437 (US, Standard Europe) ,, PC850 (Multilingual)
Product Description
General Description
5
EPSON Stylus Photo 750
,, Thickness: 0.08mm(0.003")-0.11mm(0.004") ,, Weight: ,, Quality: 64g/m2(17lb.) - 90g/m2(24lb) Exclusive paper, Bond paper, PPC
Revision A
TYPEFACE Bin map LQ font: EPSON Courier, 10 CPI
1.2.2 Paper Feeding
Feeding Method: Friction feed with ASF Paper Path: Feeding Speed: Cut-sheet ASF(Top entry) 2.36 inches/sec (normal speed mode/continuous feeding) 4.5 inches/sec (high-speed mode/continuous feeding)
Transparency and Glossy Paper ,, Size: A4(Width 210mm(8.3") x Length 297mm(11.7") Letter(Width 216 mm(8.5") x Length 279mm(11.0")
,, Thickness: 0.075mm(0.003") - 0.085mm(0.0033")
Note) Transparency printing is only available at normal temperature.
Envelope ,, Size: No.10 Width 241mm(9 1/2") x Length 104.8mm(4 1/8") DL Width 220mm(8.7") x Length 110mm(4.3") C6 Width 162mm(6.4") x Length 114mm(4.5")
1.2.3 Paper Specification
This section describes the printable area and types of paper which can be used in this printer.
C A U T IO N
,, Thickness: 0.16mm(0.006") - 0.52 mm(0.02") ,, Weight: ,, Quality: 45g/m2(12lb) - 75g/m2(20lb.) Bond paper, Plain paper, Air mail
,, No curled, wrinkled, scuffing or torn paper be used. ,, Printing should be performed at room temperature for transparency and envelope.
Note) Envelope printing is only available at normal temperature. Keep the longer side of the envelope horizontally at setting.
Cut Sheet ,, Size: A4(Width 210mm(8.3") x Length 297mm(11.7")) Letter(Width 216mm(8.5") x Length 279mm(11.0")) Legal(Width 216mm(8.5") x Length 356 mm(14.0")) Statement (Width 139.7mm(5.5") x Length 215.9mm (8.5")) B5(Width 182mm(7.2") x Length 257 mm(10.1")) Executive(Width 184.2 mm(7.25") x Length 266.7mm (10.5")) Photo Paper (Width 101.6mm(4") x Length 152.4mm(6")) Index Card ,, Size: A6 Index Card: Width 105mm(4.1") x Length 148mm(5.8") A5 Index Card: Width 148mm(5.8") x Length 210mm (8.3") 5x8" Index Card: Width 127mm(5.0") x Length 203mm (8.0") 10x8" Index Card: Width 127mm(5.0") x Length 203 mm (8.0")
,, Thickness: Less than 0.23mm(0.0091")
Product Description
General Description
6
EPSON Stylus Photo 750
Revision A
1.2.4 Printable Area
Cut Sheet The figure below shows printable area.
Paper Size Paper Width (typ) 210mm (8.3")
Table 1-3. Printable Area
Paper Length (typ.) 297mm (11.7") Left Margin (min.) 3mm (0.12") 3mm (0.12") Right Margin (min.) 3mm (0.12") Top Margin (min.) 3mm (0.12") Bottom Margin (min.) 14mm(0.54") /3mm (0.12")* 14mm(0.54") /3mm (0.12")* 14mm(0.54") /3mm (0.12")* 14mm(0.54") /3mm (0.12")* 14mm(0.54") /3mm (0.12")* 14mm(0.54") /3mm (0.12")* 14mm(0.54") /3mm (0.12")*
L M
R M
A4
T M
Letter
216mm (8.5") 216mm (8.5") 139.7mm (8.5") 182mm (7.2") 184.2mm (7.25"") 101.6mm (4")
279mm (11.0") 356mm (14.0") 215.9mm (8.5") 275mm (10.1") 266.7mm (10.5") 152.4mm (6")
9mm (0.35") 9mm (0.35") 3mm (0.12") 3mm (0.12") 3mm (0.12") 3mm (0.12")
3mm (0.12")
Legal
3mm (0.12") 3mm (0.12") 3mm (0.12") 3mm (0.12") 3mm (0.12")
3mm (0.12") 3mm (0.12") 3mm (0.12") 3mm (0.12") 3mm (0.12")
Statement
P r in ta b le a r e a
P L
B5
Executive
B M P W
Figure 1-3. Printable Area
Photo Paper
Note) Bottom margin can be set up to 3mm at minimum when the paper length is designated with "ESC(S" command.)However, there is the possibility that a printing scrambles in the area ranging from 3mm to 14mm, from the form lower end. When the paper length is not designated, the bottom margin must be wider than 14 mm.
Product Description
General Description
7
EPSON Stylus Photo 750
Envelope Table 1-4. Envelope
Paper Size #10 DL C6 LM(Left margin) (min.) 28mm(1.10") 7mm(0.28") 3mm(0.12") RM(RIght margin) (min.) 3mm(0.12") 3mm(0.12") 3mm(0.12") TM(Top margin) (min.) 3mm(0.12") 3mm(0.12") 3mm(0.12") BM(Bottom margin) (min.) 14mm(0.55") 14mm(0.55") 14mm(0.55")
Revision A
1.2.5 Adjust Lever Settings
The adjust lever located under the printer cover(right side) needs to be set for the proper paper setting according to the paper type. Table 1-5. Setting Position of Adjust Lever
Paper Normal paper, Transparency sheet, Label Envelope Lever position + 0 Adjustment Value +0.9mm 0mm
L M
R M T M
+ 0
P a p e r A d js u t L e v e r
P r in ta b le A r e a
B M
Figure 1-4. Printable Area
Figure 1-5. Adjust Lever
Product Description
General Description
8
EPSON Stylus Photo 750
Revision A
Resistance to shock: ,, Operating: 1G, within 1ms 2G, within 2ms(*1)
1.2.6 Environmental Conditions
Temperature: ,, Operating: ,, Non-operating: 10 to 35°C(*3) -20 to 60°C(*1)
,, Non-operating:
Resistance to vibration: ,, Operating: ,, Non-operating: 0.15G 0.50G (*1)
NOTE: 1 month at 40°C and 120 hours at 60°C
Humidity: ,, Operating: ,, Non-operating: 20 to 80% RH(*2,*3) 5 to 85% RH(*1,*2)
NOTE: *1:with shipment container *2:without condensation *3:Refer to Figure1-6 for Environmental Condition.
H u m id ity (% R H )
G u ra n te e d R a n g e
(5 0
F )
(8 0
F ) (9 5
T e m p e ra tu re F ) ( F )
Figure 1-6. Environmental Condition
Product Description
General Description
9
EPSON Stylus Photo 750
Revision A
1.2.7 Ink Cartridge
1.2.7.1 Black Ink Cartridge
Type: Color: Exclusive cartridge Black
1.2.7.2 Color Ink Cartridge
Type: Color: Exclusive cartridge Magenta, Cyan, Yellow, Light Magenta, Light Cyan
Print capacity: 220 pages/A4 (360 dpi, 5% duty each color) Ink life: 2 years from production date
Print capacity: 540 pages/A4 (ISO/IEC1056 1 Letter Pattern at 360 dpi) Ink life: 2 years from production date
Storage temperature:-20°C to 40°C(Storage within a month at 40°C) -30°C to 40°C(Packing storage, within a month at 40°C) -30°C to 60°C(Transit, within 120 hours at 60°C and within a month at 40°C) Dimension: 19.8mm(W) x 52.7 mm (D)x 38.5mm(H)
Storage temperature:-20°C to 40°C(Storage within a month at 40°C) -30°C to 40°C(Packing storage, within a month at 40°C) -30°C to 60°C(Transit, within 120 hours at 60°C and within a month at 40°C Dimension: 51.4mm(W) x 52.7 mm (D)x 38.5mm(H)
NOTE: Ink cartridge can not be re-filled, only ink cartridge is prepared for article of consumption.Do not use the ink cartridge which was passed away the ink life. Ink will be frozen under - 4°C environment. However, it will be usable again being placed at room temperature for 3 hours.
Figure 1-7. Black Ink Cartridge
C y a n (C ) L ig h t C y a n ( L C )
Y e llo w ( Y ) L ig h t M a g e n ta ( L M ) M a g e n ta (M )
Figure 1-8. Color Ink Cartridge
Product Description
General Description
10
EPSON Stylus Photo 750
Revision A
,, Insulation Resistance:10 M ohms min. (between AC line and chassis, DC 500V) ,, Dielectric: AC 1500 V rms. 1 minute (between AC line and chassis)
1.2.8 Input Data Buffer
Buffer: 256 Kbytes
1.2.9 Electric Specification
120V version ,, Rated voltage: ,, Input voltage range: AC 120V AC 99 -132V
1.2.10 Reliability
Total print volume: Print Head Life: 10,000 pages(A4, Letter) 2000 million dots/nozzle
,, Rated frequency range:50 - 60Hz ,, Input frequency range:49.5-60.5 Hz ,, Rated current: 0.4A(Max.0.5A)
1.2.11 Safety Approvals
120V version ,, Safety standard: ,, EMI: 220-240V version ,, Safety standard: EN60950(VDE, NEMKO) EN55022(CISPR Pub.22) class B AS/NZS 3548 class B UL1950 with D3 CSA22.2 No.950 with D3 FCC part 15 subpart B classB CSA C108.8 class B
,, Power consumption: Approx.18W(ISO/IEC 10561 Letter pattern) Energy Star compliant ,, Insulation Resistance:10 M ohms min. (between AC line and chassis, DC 500V) ,, Dielectric: AC 1000 V rms. 1 minute or AC 1200 V rms 1 second(between AC line and chassis)
220-240V version ,, Rated voltage: ,, Input voltage range: AC220-240V AC 198 -264V
1.2.12 Acoustic noise
Level: Approx. 47 dB(A) (According to ISO 7779)
,, Rated frequency range: 50 - 60Hz ,, Input frequency range:49.5-60.5 Hz ,, Rated current: 0.2A(Max.0.3A)
,, Power consumption: Approx.18W(ISO/IEC 10561 Letter pattern) Energy Star compliat
Product Description
General Description
11
EPSON Stylus Photo 750
Revision A
< Graphic Mode > General operation: ,, Initialize Printer: ESC @
1.2.13 CE Marking
220-240 V version ,, Low Voltage Directive 73/23/EEC:EN60950 ,, EMC Directive 89/336/EEC: EN55022 Class B EN61000-3-2 EN61000-3-3 EN50082-1 IEC801-2 IEC801-3 IEC801-4
,, Unidentical Printing: ESC U ,, Print a Image: ,, CSF Mode Control: Paper Feeding: ,, Form Feed: ,, Line Feed: ,, Line Spacing: ,, Carriage Return: Page format ,, Page Length: ,, Top/Bottom Margin: ESC (C ESC (c ESC (S FF LF ESC+ CR ESC ACK ESC EM
1.2.14 Printer Language and Emulation
Printer Language: ESC/P Raster EPSON Remote
1.2.14.1 ESC/P Control Codes
< Character mode > General operation: ,, Initialize printer: Paper feeding: ,, Form Feed ,, Line Feed ,, Carriage Return FF LF CR ESC@
,, Paper Size: Print position motion
,, Horizontal Print Position: ESC $, ESC\, ESC($, ESC(\ ,, Vertical Print Position:ESC(V, ESC(v Spacing: ,, Graphics Mode: Graphics: ,, Raster Graphics: ESC. ESC (G
,, Microweave control: ESC (i
Product Description
General Description
12
EPSON Stylus Photo 750
,, Dot size control: ,, Raster header: ,, Raster body: Color: ,, Printing Color: EEPROM control: ,, EEPROM control: ESC | ESC r, ESC (r ESC (e ESC (D ESC i
Revision A
Product Description
General Description
13
EPSON Stylus Photo 750
Revision A
ERROR signal is at low level when the printer is in one of the following states. -Printer hardware error (fatal error) -Paper-out error -Paper jam error -Ink-out error PE signal is at high level during paper-out error. Table 1-7. Connector pin assignment and signals
Pin. No 1 Signal Name -STROBE Return GND pin 19 In/Out Function Description The strobe pulse. Read-in of data is performed at the falling edge of this pulse. The DATA 0 through DATA7 signals represent data bits 0-7, respectively.Eacj signal is at high when data is logical 1 and low level when data is logical 0. This signal is a negative pulse including that the printer can gain accept data. A high signal indicates that the printer cannot receive data. A high signal indicates paper-out error. Always at high level when the printer is powered on. Not used. This falling edge of a negative pulse or a low signal on this line causes the printer to initialize Minimum 50 us pulse is necessary. A low signal indicates printer error condition. Not used.
1.3 Parallel Interface
This printer has IEEE-1284 parallel interface, RS-423 serial interface and USB interface as standard.
1.3.1 Parallel Interface(Forward channel)
Forward channel is the mode to transfer the ordinary printing order to the printer side from the PC side. Table 1-6. Parallel I/F
Item Transmission mode Synchronization Handshaking Signal Level Adaptable connector Specification 8bit parallel, IEEE-1284 compatibility mode By STROBE pulse By BUSY and ACKNLG signal TTL compatible level 57-30360(amphenol) or equivalent
In
2-9
Data0-7
20-27
In
BUSY signal is set high before setting either-ERROR low or PE high and is held high until all these signals return to their inactive state. BUSY signal is set high level in the following cases. -During data entry (see Data transmission timing) -When input data buffer is full -During -INIT signal is at low level or during hardware initialization -During printer error (See-ERROR signal) -When the parallel interface is not selected.
10 11 12 13 14
-ACKNLG BUSY PE SLCT -AFXT
28 29 28 28 30
Out Out Out Out In
31
-INIT
30
In
32 36
-ERROR -SLIN
29 30
Out In
Product Description
Parallel Interface
14
EPSON Stylus Photo 750
Revision A
Pin. No 18 35 17 16,33 19-30 15,34
Signal Name Logic H +5V Chassis GND GND NC
Return GND pin -----------
In/Out Out Out -------
Function Description Pulled up to +5V via 3.9K ohm resistor. Pulled up to +5V via 3.3 K ohm resistor.
1.3.2 Parallel Interface(Reverse channel)
Reverse channel is used to transfer the information data from the printer side to the PC side. Table 1-8. Connector pin assignment and signals
Chassis GND. Signal GND. Not connected.
Item Transmission mode Synchronization Handshaking Data trans.timing Signal Level Adaptable connector
Specification IEEE-1284 nibble mode Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification TTL compatible level 57-30360(amphenol) or equivalent
NOTE: In/Out refers to the direction of signal flow from the printer's point of view.
Extensibility request: The printer responds affirmatively when the extensibility request values are 00H or 04H, that mean, 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. ,, When IEEE1284.4 protocol is effective: [00H] [57H] MFG:EPSON; CMD:ESCPL2,BDC,D4; MDL:Stylus[SP]Photo[SP]750; CLS:PRINTER; DES:EPSON[SP]Stylus[SP]Photo[SP]750;
Product Description
Parallel Interface
15
EPSON Stylus Photo 750
,, When IEEE1284.4 protocol is NOT effective: [00H] [57H] MFG:EPSON; CMD:ESCPL2,BDC; MDL:Stylus[SP]Photo[SP]750; CLS:PRINTER; DES:EPSON[SP]Stylus[SP]Photo[SP]750;
Revision A
Table 1-9. Connect pin assignment and signals
Pin. No 1 Signal Name HostClk Return GND pin 19 In/Out In Function Description Host clock signal. The DATA 0 through DATA7 signals represent data bits 0-7, respectively.Eacj signal is at high level when data is logical 1 and low level when data is logical 0. These signals are used to transfer the 1284 extensibility request values to the printer. Printer clock signal. Printer busy signal and reverse channel transfer data bit3 or 7. Acknowledge data request signal and reverse channel transfer data bit2 or 6. X-flag signal and reverse channel transfer data bit 1 or 5. Host busy signal. Not used. Data available signal and reverse channel transfer data bit 0 or 4. 1284 active signal. Pulled up to +5V via 3.9K ohm resistor. Pulled up to +5V via 3.3 K ohm resistor. Chassis GND. Signal GND. Not connected.
NOTE: [00H] denotes a hexadecimal value of zero. [SP] denotes a space character(20H). MDL and DES values depend on the EEPROM setting.
2-9
Data0-7
20-27
In
10 11 12 13 14 31 32 36 18 35 17 16,33 19-30 15,34
PtrClk PtrBusy/ DataBit-3,7 AckDataReq/ DataBit-2,6 Xflag/ DataBit-0,4 HostBusy -INIT -DataAvail/ DataBit-0,4 1284-Active Logic H +5V Chassis GND GND NC
28 29 28 28 30 30 29 30 ----------
Out Out Out Out In In Out In Out Out ------
Product Description
Parallel Interface
16
EPSON Stylus Photo 750 NOTE: Following lists "Notes" when using the parallel interface.
1. "Return GND pin" in the table means twist pair return and is connected to the signal GND level. Also, these cables are shielded wires and it is effective means to connect to each chassis GND in the PC and printer for electrostatic noise. 2.Conditions for interface are based on TTL level. Rise and fall time should be within 0.2µs. 3.Refer to figure1-9 for transmission of timing of each signals. 4.Do not perform data transmission ignoring -ACK or BUSY signals. (Perform the data transmission after confirming that -ACK and BUSY signals are Low) 5.It is possible to perform the printing test including interface circuit without using equipment from outside when 8-bit data signal(20-27 pin) is set to appropriate word code and connect then forcefully to -ACK and -STRB. However, to perform this, it is necessary to set "Parallel I/F mode" of EEPROM as normal. Also, set the IEEE-1284.4 packet mode Off.
Revision A
The figure below shows the timing chart of the parallel interface.
D A T A
d a ta b y te n t h o ld
d a ta b y te n + 1
/S T R B
ts
e tu p
ts
tb
tn
e x t
B U S Y
tre
a d y
tb
u s y
/A C K
tre
p ly
ta
c k
tn
b u s y
tt- o u t M a x . 1 2 0 n s : R is e a n d fa ll tim e o f e v e r y o u tp u t s ig n a ls tt- in M a x . 2 0 0 n s : R is e a n d fa ll tim e o f e v e r u in p u t s ig n a ls
Figure 1-9. Timing Chart Typical time of tack is shown below. Table 1-10. Typical Time of Tack
Parallel I/F Mode High speed Normal speed Typical time of tack 0.5 µS 2 µS
Product Description
Parallel Interface
17
EPSON Stylus Photo 750
Revision A
Following figure shows port arrangement of serial I/F connector.
1.3.3 Serial Interface
This section shows specification for serial interface I/F. Table 1-11. Serial interface
Item Standard Synchronization Bit rate Specification Based on RS-423 Synchronous Approx. 1.8Mbps · · · · Start bit 1bit Data bit 8bit Parity bit none stop bit 1bit
8
7
6
5
4
3
Word format
2
1
Handshaking Adaptable connector Recommended interface cable
X-ON/X-OFF, DTR protocol 8-pin mini circular connector Apple System Peripheral-8 cable
Figure 1-10. Serial I/F Connector Port
Table 1-12. Connector pin assignment and signals
Pin No. 1 2 3 4 5 6 7 8 Signal Name SCLK CTS TxDS.G. RxDTxD+ DTR RxD+ In/Out Out In Out In In Out Out In Function Description Synchronous clock Clear to send Transmitt dataSignal ground Receive dataBalanced Transmit+ Data terminal ready Balanced Receive+ Busy Ready State
Following table shows timing relation of DTR, X-ON/X-OFF handshaking. Table 1-13. X-ON/X-OFF, DTR protocol
Buffer space Less than 3072 bytes More than 5120 bytes X-on/X-off Send X-OFF code Send X-ON code DTR Off On
NOTE: In/Out refers to the direction of signal flow from the printer's point of view.
Product Description
Parallel Interface
18
EPSON Stylus Photo 750
Revision A
1.3.4 USB(Universal Serial Bus) Interface
Following shows specification. Standard: Based on ,, Universal Serial Bus Specifications Revision 1.0 ,, Universal Serial Bus Device Class Definition for Printing Devices version 1.0 Bit rate: Data encording: Adaptable connector: 12Mbyte(Full Speed Device) NRZI USB Series B
P in 3 P in 4 P in 2 P in 1
Recommended cable length: 2 meters Table 1-14. Connector pin assignment and signals
Pin. No 1 2 3 4 Signal Name VCC -Data +Data Ground I/Out -Bidirectional Bidirectional -Function Description Cable power. Maximum power consumption is 100mA. Data Data. Pull up to +3.3V via 1.5K ohm resistor. Cable ground.
Figure 1-11. USB Interface Port
Product Description
Parallel Interface
19
EPSON Stylus Photo 750
Revision A
1.3.5 Prevention of data transfer time-out on the host
Generally, hosts abandon data transfer to peripherals when a peripheral is in busy state for dozens of seconds continuously. To prevent hosts from acting this kind of time-out, the printer receives data very slowly, several bytes per minute, even if the printer is in busy state. This slowdown starts when the remaining input buffer is less than several hundreds of bytes. Finally, the printer is in busy state continuously when the input buffer is full.
1.3.7 IEEE 1284.4 protocol
The packet protocol described by IEEE1284. 4 is supported on the parallel I/F and USB I/F. Three function modes of IEEE1284.4 protocol, "On", "Off" and "Auto" are available for each I/F, and one of them is selected according to the value in EEPROM address 0Ah and 0Ch. On: Communication in IEEE1284.4 packet mode is started by receiving a magic string(1284.4 synchronous commands). Until a magic string is received, other commdands are discarded. Off: Communication is carried out in the conventional mode. A magnetic string(1284.4 synchronous commands) is discarded. Auto: Communication is carried out in the conventional mode until a magic string(1284.4 synchronous commands) is received. By receiving a magic string, communication in IEEE1284.4 packet mode is started.
1.3.6 Interface selection
The printer has 3 built-in interfaces; Parallel I/F, Mac serial I/F and USB I/F. These interfaces are selected automatically. ,, Automatic selection In this automatic interface selection mode, the printer is initialized to the idle state scanning which interface receives data when it is powered on. Then the interface that receives data first is selected. When the host stops data transfer and the printer is in the stand-by state for the seconds, the printer is returned to the idle state. As long as the host sends data or the printer interface is busy state, the selected interface is let as it is. ,, Interface state and interface selection When the parallel interface is not selected, the interface got 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 got into the ready state, 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.
NOTE: The packet protocol of IEEE1284.4 allows a device to carry on multiple exchanges or conversations which contain data and /or control information with another device at the same time across a single point to point link. The protocol is not, however, a device control language. It does provide basic transport-level flow control and multiplexing services. The multiplexed logical channels are independent of each other and blocking of one has no effect on the others. The protocol operate over IEEE1284.
Product Description
Parallel Interface
20
EPSON Stylus Photo 750
Revision A
1.4 Function
1.4.1 Control Code
This printer is operated with the raster graphics control code based on the ESC/P2 control line. Refer to "ESC/PV2 Reference Manual" and "ESC/P2 specification" for each command and ESC sequence.
1.4.3.1 Switches
Since this printer does not have so many switches, each button has several functions. The tables below show their functions and how to enter those functions for each switch. Table 1-15. Panel functions in normal state
Switch Load/Eject (Less than 2 seconds) Load/Eject (for 2 seconds) Cleaning (for 2 seconds) Cleaning (Less than 2 seconds) Function · Load or eject paper · When the carriage is on the position for exchanging ink cartridge, return it to the home position. · Start the ink cartridge exchange sequence; i.e. move the carriage to carriage exchange position. · Start cleaning the print head. · In the condition of "Ink Low" or "No Ink Cartridge", start the ink cartridge exchange sequence. · When the carriage is on the position for exchanging ink cartridge, return it to the home position.
1.4.2 Bi-directional Command
Remote Setting Command Refer to "Remote Command Specification" for details.
1.4.3 Control Panel
There are 2 non-lock type push switches, 1 lock type push switch and 4 LEDs. The figure below shows the exterior view of the control panel.
P o w e r L E D :G re e n P a p e r o u t L E D :R e d
Table 1-16. Panel function with turning on
Switch to press when turning on Load/Eject Cleaning Load/Eject + Cleaning Function · Start status-printing.*1 · Change code pages/Select IEEE1284.4 mode for parallel I/F*2. · Start special setting mode.*3
In k O u t ( B la c k ) L E D :R e d
P o w e r S W In k O u t ( C o lo r ) L E D : R e d C le a n in g S W L o a d /E je c t S W
Figure 1-12. Control Panel
NOTE: *1: Refer to Table 1-17, "Status printing," on page 22. *2:Not described in the User's manual. (not open to the users) *3:See the Table in the section "Special Setting Mode".
Product Description
Function
21
EPSON Stylus Photo 750
*1(from the previous page): According to the content of 35H of EEPROM, one of the following actions is carried out. Table 1-17. Status printing
Content of 35H of EEPROM, [bit7] [bit6] 00 11 01 10 · Start hex-dump printing. · Start self test printing. Action · Print firmware version, ink counter, selected code page and nozzle check pattern
Revision A NOTE: *Waste ink counter value and Timer IC counter value are initialized.
1.4.5 LED Indications
There are 4 LEDs in this printer. 1. Power Lights when the operate switch is "ON", and AC power is supplied. 2. Paper Out Lights during the paper-out condition, and blinks during the paperjam condition. 3. Ink Out(Black) Lights during no Black ink condition, and blinks during the Black ink low condition. 4. Ink Out (Color) Lights during no Color ink condition, and blinks during the Color ink low condition. See the table on the next page for more detailed LED indications. Since LED indicates the various errors and current printer operations, LED indications enable to find out the proper repair operation.
1.4.4 Special Setting Mode
C A U T IO N
,, Unlike the previous models, since this printer does not have EEPROM All Clear function, do not perform this operation except for the purpose of canceling the maintenance errors. ,, Be sure to replace the waste ink pad located in the lower case, when canceling the maintenance error. ,, If you replace the waste ink pad regardless of the maintenance error, be sure to perform this operation.
After turning the power on while pressing Load/Eject and "Cleaning" switches, "Paper Out" indicator blinks for 3 seconds. By pressing the following switches during this period, following action is carried out. Table 1-18. Special setting mode
Switch Load/Eject Cleaning (for 10 seconds) Function · Initialize EEPROM* and reset time IC. · Reset the ink overflow counter in EEPROM.
Product Description
Function
22
EPSON Stylus Photo 750
Table 1-19. Printer Status displayed on the control panel
Indicators Printer Status Power Power on condition Ink sequence Ink cartridge exchange mode Data processing Paper out*1 Paper jam*1 No ink cartridge or Ink out (black) Ink level low (black) No ink cartridge or Ink out (color) Ink level low (color) EEPROM and Timer IC reset*2 Maintenance Request Fatal Error*1 On Blink Blink Blink -------Ink Out (Black) -----Off On Blink --On (for 1 second) Blink On Ink Out (Color) -----Off --On Blink On (for 1 second) Blink On Paper Out ----On Blink ----On (for 1 second) Blink Blink Priority 9 6 5 8 4 3 7 7 7 7 -C A U T IO N
Revision A
1.4.6 Errors
In this printer, when the following conditions are detected. the printer goes to the error condition, sets ERROR signal Low and BUSY signal High and stops receiving the data. The printer becomes unable to print at this time. However, if the printer communicated by IEEE1284.4 protocol, the printer does not become unprintable state. Ink Out When the printer runs out most of the ink of any one color, it indicates ink-low warning and keeps printing. When the print runs out the whole ink of any one color, it indicates ink-error and stops printing. Exchanging ink cartridges is required on this state. An ink cartridge taken out once should not be used again. Re-installation of the cartridge upsets the ink level detection and may cause a serious problem to the print head as a result. Never use or re-install the cartridge, which is taken out once. Re-installation of the used cartridge disturbs the normal ink out detection.
Blink Blink
2 1
Paper out When the printer fails to load a sheet, it becomes "paper out error" condition. Paper Jam When the printer fails to eject a sheet, it becomes "paper jam error" condition.
NOTE: *1 Refer to "Fatal Error" under the "Errors" on page -23. *2 EEPROM reset does not mean to erase all address in EEPROM. (See "Special Setting Mode" on page -22) *3 -- in the table above means no change.
Product Description
Function
23
EPSON Stylus Photo 750
No Ink Cartridge When the printer detects that ink-cartridge comes off, it becomes "No ink cartridge error" condition.
C A U T IO N
Revision A
1.4.7 Initialization
There are 3 types of initialization. Power-on Initialization This printer initializes itself when it is turned on, or when it recognizes the cold-reset command (remote RS command). On this initialization, following actions are performed. ,, Initialize mechanical components ,, Clear the input buffer ,, Clear the print buffer ,, Set default values Operator initialization This printer initializes itself when it is turned off and is turned on again within 10 seconds, or when it recognizes the -INIT signal(negative pulse) on parallel interface. On this initialization, following actions are performed. ,, Cap the print head ,, Eject paper ,, Clear the input buffer ,, Clear the print buffer ,, Set default values Software initialization "ESC@" command also initializes the printer. On this initialization, following actions are performed. ,, Clear the print buffer ,, Set default values
,, When you need to perform test print after the repair service, performing the status-printing(see "Control Panel" on page -21) provides the discharged ink condition from the all ink nozzles and the current value of the waste ink counter. Be sure to check that the counter value still has enough capacity.(if the value is closer to 2700 or not) ,, If there is no enough capacity, exchange the waste ink absorber and find out if it is necessary to reset EEPROM or not. If you need to reset EEPROM, refer to "Special Setting Mode" on page -22.
Maintenance request When the total quantity of ink wasted with cleaning and flushing reaches the limit, the printer indicates this error and stops printing. The absorber in the printer enclosure should be replaced with a new one by a service person. The counter is added by points and its limit is as follows. ,, 37000 point = Approx. 418ml Fatal Errors When the printer detects a problem with controlling the mechanical components or assessing the CG, it becomes "fatal error" condition. ,, Control Error Defective parallel adjustment, defective HP detection, scarcity of lubrication on the carriage shaft etc. ,, Logic operation error Shorted circuit, etc.
Product Description
Function
24
EPSON Stylus Photo 750
Revision A
1.4.8 Initialization Setting
This printer initializes following settings as initialization setting when the initialization is performed. Also, among the items of panel setting, default setting and remote command settings, the items which can be stored are also initialized as initialization setting. Page position: Page heading location as present paper location
1.4.9 Physical Specification
Weight: 5.2Kg Dimensions: 429 mm(W) x 260.9 mm(D) x 167.1 mm (H) (without sheet support)
2 9 1 .9 7
Line spacing: 1/6 inch Right margin position: 80 lines Left margin position: first line Character pitch: 10 CPI
6 0 8 .7 4 2 6 0 .9
1 6 7 .1
Printing mode:Text mode (Not raster graphics mode)
4 2 9
Figure 1-13. Dimension of Stylus Photo 750
Product Description
Function
25
EPSON Stylus Photo 750
Revision A
1.4.10 Consumables and options
The consumables and options for this printe are following; Table 1-20. Consumables
Classification Consumables IC5CL02 Ink Cartridge(color) No. IC1BK02 Name Ink Cartridge(black)
Product Description
Function
26
&+$37(5
5
OPERATING PRINCIPLES
EPSON Stylus Photo 750
Revision A
Print Head Each color 120 DPI, 48 nozzle x 6 colors(Black, Cyan, Light Cyan, Magenta, Light Magenta, Yellow). Head is mounted at the carriage mechanism. Carriage Mechanism This mechanism consists of Carriage Motor(CR Motor), Carriage, Timing Belt, CR Guide Shaft, CR Guide Frame and Carriage Home Sensor (HP Sensor). ,, Carriage Print Head is mounted. ,, CR Motor This motor moves the carriage to the appointed position on the platen for the printing operation by using the timing belt.
C R M o to r
2.1 Overview
This section describes operating principles of the printer mechanism and electric circuit boards (C259Main, C257PSB and C209PNL).
2.1.1 Printer Mechanism
This printer is composed of Print Head, Carriage Mechanism, Hopper Drive Mechanism, Paper Feed Mechanism, Pump Mechanism and Carriage Lock Mechanism.
P F M o to r
C a r r ia g e M e c h a n is m ( P r in t H e a d ) T im in g B e lt
P a p e r L o a d T r ig g e r
P u m p
,, CR Guide Shaft Since this guide shaft is ecentric shaft, it is rotated by the adjust lever and sets the platen gap "0" or "+". This prevents the print head and print surface from contacting and rubbing. Paper Feed Mechanism This mechanism consists of Paper Feed Motor(PF Motor), PF Roller, Paper Feed Roller Line and Paper Guides.
P a p e r F e e d M e c h a n is m C a r r ia g e L o c k M e c h a n is m
o p 1
H o p p e r D r iv e M e c h a n is m
P u m p M e c h a n is m
Figure 2-1. Printer Mechanism
Hopper Drive Mechanism Thi