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EPSON Stylus Photo
SERVICE MANUAL
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EPSON
COLOR INK-JET PRINTER
EPSON Stylus Photo
SERVICE MANUAL
SEIKO EPSON CORPORATION
4007542
NOTICE
All rights reserved. Reproduction of any part of this manual in any form whatsoever
without SEIKO EPSON's express written permission is forbidden.
The contents of this manual are subjects to change without notice. All 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.
The 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 EPSON Stylus Photo. 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 Rev. A Issued Data March 26, 1997 Contents 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 Descriptions
1.1 Features.................................................................................................................1-1 1.2 Specifications .......................................................................................................1-2
1.2.1 Printing Specification............................................................................................................. 1-2 1.2.2 Paper Specification ................................................................................................................ 1-4 1.2.2.1 Cut Sheet................................................................................................................... 1-4 1.2.2.2 Transparency, Glossy Paper ..................................................................................... 1-4 1.2.2.3 Envelope.................................................................................................................... 1-4 1.2.2.4 Index Card................................................................................................................. 1-4 1.2.3 Adjust Lever Settings (PG adjust lever) ............................................................................... 1-5 1.2.4 Printing Area ........................................................................................................................... 1-6 1.2.4.1 Cut Sheet................................................................................................................... 1-6 1.2.4.2 Envelope.................................................................................................................... 1-7 1.2.5 Environmental Condition....................................................................................................... 1-8 1.2.6 Ink Cartridge Specifications .................................................................................................. 1-9 1.2.6.1 Black Ink Cartridge .................................................................................................... 1-9 1.2.6.2 Color Ink Cartridge .................................................................................................. 1-10 1.2.7 Physical Specification.......................................................................................................... 1-11 1.2.8 Input Data Buffer .................................................................................................................. 1-11 1.2.9 Electric Specification ........................................................................................................... 1-12 1.2.10 Reliability............................................................................................................................. 1-12 1.2.11 Safety Approvals................................................................................................................. 1-12 1.2.12 Acoustic Noise.................................................................................................................... 1-12 1.2.13 CE Marking .......................................................................................................................... 1-12 1.2.14 Printer Language and Emulation ...................................................................................... 1-13
1.3 Interface...............................................................................................................1-14
1.3.1 Parallel Interface (Forward Channel) .................................................................................. 1-14 1.3.2 Parallel Interface (Reverse Channel) .................................................................................. 1-15 1.3.3 Serial Interface ...................................................................................................................... 1-18 1.3.4 Prevention Hosts from Data Transfer Time-out................................................................. 1-19 1.3.5 Interface Selection................................................................................................................ 1-19
1.4 Control Panel ......................................................................................................1-20
1.4.1 Indicators............................................................................................................................... 1-20 1.4.2 Panel Functions.................................................................................................................... 1-21 1.4.3 Printer Condition and Panel Status .................................................................................... 1-22
1.5 Error Status.........................................................................................................1-23
1.5.1 Ink Out ................................................................................................................................... 1-23 1.5.2 Paper Out............................................................................................................................... 1-23 1.5.3 Paper Jam.............................................................................................................................. 1-23 1.5.4 No Ink-Cartridge ................................................................................................................... 1-24 1.5.5 Maintenance Request........................................................................................................... 1-24 1.5.6 Fatal Errors............................................................................................................................ 1-24
1.6 Printer Initialization ............................................................................................1-25 1.7 Initialization Settings..........................................................................................1-25
1.8 Main Components .............................................................................................. 1-26
1.8.1 C209 Main Control Board .....................................................................................................1-26 1.8.2 C206 PSB/PSE(Power Supply) Board .................................................................................1-27 1.8.3 C209PNL Panel Unit..............................................................................................................1-27 1.8.4 Printer Mechanism................................................................................................................1-27 1.8.5 Housing..................................................................................................................................1-28
EPSON Stylus Photo
1.1 Features
EPSON Stylus Photo is a high quality color ink jet printer designed for printing photo images and color graphics. The major printer features are;
High color print quality 720(H) x 720(V) dpi printing 6 color printing CMYK and output of photo quality by light-C/M Traditional and New Microwave 32 nozzles x 6 (Black, Cyan, Magenta, Yellow, Light Cyan, Light Magenta) During 360 dpi printing, 1 dot is fired by 2 shots, and 1 dot is fired by 1 shot during 720 dpi printing. Built-in auto sheet feeder Holds 100 cut-sheets (55g/u) Holds 10 envelopes Holds 50 transparency films Holds 65 special papers Built-in 2 I/F Mac serial I/F(up to approx.900 kbps) Bi-directional parallel I/F(Nibble mode. IEEE-1284 level 1 device) High-speed print 200cps By driving the print head at frequency; 14.4KHz, printing speed is twice faster than Stylus Color. Windows/Macintosh exclusive Compact size Non-operating : 429mm(W) x 234mm(D) x 162mm(H) Operating : 429mm(W) x 695mm(D) x 309mm(H) Weight : 5.2Kg(without cartridge) Acoustic noise Approximately 45 dB One unit combined with black and color heads
The following table shows consumable and option. Table 1-1. Consumables and options Item Black Ink Cartridge Color Ink Cartridge EPSON 360 dpi Ink Jet Paper EPSON 360 dpi Ink Jet Paper EPSON 360 dpi Ink Jet Paper Photo Quality Ink Jet Paper Photo Quality Ink Jet Paper Photo Quality Ink Jet Paper Photo Quality Ink Jet Paper Photo Quality Glossy Paper(New Release) Photo Quality Glossy Paper(New Release) Photo Quality Glossy Film Photo Quality Glossy Film Photo Quality Glossy Film Ink Jet Transparencies Ink Jet Transparencies Photo Quality Ink Jet Card Photo Quality Ink Jet Card Photo Quality Ink Jet Card Photo Quality Self Adhesive Sheet Code S020093 S020110 S041025 S041059 S041060 S041026 S041061 S041062 S041067 S041126 S041124 S041071 S041072 S041107 S041063 S041064 S041054 S041121 S041122 S041106 Remark Color: Black Color: Cyan/Magenta/Yellow/Light Light Cyan/Light Magenta Size: A4(200 sheets) Size: A4(100 sheets) Size: Letter(100 sheets) Size: A4(200 sheets) Size: A4(100 sheets) Size: Letter Size: Legal Size: A4 Size: Letter Size: A4 Size: Letter Size: A6 Size: A4 Size: Letter Size: A6 Size: 5.8 inches Size: 10.8 inches Size: A4
Rev.A
1-1
Chapter 1 Product Description
1.2 Specifications
This section describes each specification for EPSON Stylus Photo; 1) Printing specification, 2) Paper specification, 3) Adjust lever settings, 4) Printing area, 5) Environmental condition, 6) Ink Cartridge specification, 7) Physical specification, 8) Electric specification, 9) Reliability.
1.2.1 Printing Specification
Print method On demand ink jet (E-CHIPS type. One unit combined with black and color head)
Nozzle configuration Black head: 32 nozzles (Space between nozzle: 90DPI) Color head: 32 nozzles/ each color x 5 colors (Space between nozzle: 90DPI) Note) During 360 dpi printing mode, one line is completed by 2-pass for black and by 4-pass for CMYcm.
Print direction Bi-direction with logic seeking
Print speed Raster Graphics Mode. Refer to Table 1-2. Table 1-2. Raster Graphics Mode Horizontal Resolution 180 dpi 360 dpi 720 dpi Printable Area 8.26 inch 8.26 inch 8.26 inch Available Dot 1488 2976 5952 CR Speed(IPS) 20 IPS 20 IPS 20 IPS
Character Mode*. Refer to Table 1-3. Table 1-3. Character Mode
Character Pitch Printable Colums LQ Speed 10CPI 80 200CPS ** Note) * Reference only. ** This value is the speed of one print-pass in which the 1/4of character matrix is printed.
Nozzle arrangement Refer to figure1-1.
22.5777 mm (320/360") 10.16 mm (144/360") 2.2578 mm (32/360")
#32
#1
Black
Cyan
Light Cyan Magenta
Light Magenta Yellow
Figure 1-1. Head Nozzle Arrangement
1-2
0.2822 mm (4/360")
Rev.A
EPSON Stylus Photo
Feeding method Friction feed with ASF
Line spacing 1/6 inch or programmable at 1/360 inch Paper path Cut-sheet ASF(Top entry)
Feeding speed 66.6ms (1/6 inch) 3.0 inch/sec (Continuous) Ink supply Exclusive ink cartridge(Black and CMYcm) Built in ASF Size Thickness Paper capacity
: Index card·`Legal : Less than 8mm : Holds 100 Cut sheets : Holds 10 Envelopes : Holds 10 transparency sheet : Holds 65 ink jet papers (A4) : Holds 30 index card (A6) : Holds 30 glossy papers Note1) Those numbers above should be considered as reference. The actual paper accumulation should be considered first. Note2) The printer can hold 10 transparency sheets only when the top margin is 30mm. Otherwise, only one sheet can be hold. Note3) Change the paper support position for the transparency printing position when you print on the transparency sheet.
Character tables* PC437(US, Standard Europe) PC850(Multilingual)
Typeface* Bit map LQ font
: EPSON Courier 10CPI
Control code ESC/P Raster EPSON Remote command
Note) * Reference only.
Rev.A
1-3
Chapter 1 Product Description
1.2.2 Paper Specification
This section describes the printable area and types of paper that can be used in this printer. Note) Do not perform reverse feed more than 9.5mm(0.38").
1.2.2.1 Cut Sheet
[Size] : A4 [Width 210mm(8.3") x Length 297mm(11.7")] : Letter [Width 216mm(8.5") x Length 279mm(11.0")] : B5 [Width 182mm(7.2") x Length 257mm(10.1")] : Legal [Width 216mm(8.5") x Length 356mm(14.0")] : Statement [Width 139.7mm(5.5") x Length 215.9mm(8.5")] : Exclusive [Width 190.5mm(7.5") x Length 254mm(10")] : 0.08mm(0.003") - 0.11mm(0.004") : 64g/m (17Ib.) - 90g/m (24Ib.) : Exclusive paper, Bond paper, PPC
2 2
[Thickness] [Weight] [Quality]
1.2.2.2 Transparency, Glossy Paper
[Size] : A4 : Letter [Width 210mm(8.3") x Length 297mm(11.7")] [Width 216mm(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.
1.2.2.3 Envelope
[Size] : No.10 : DL : C6 [Width 241mm(9 1/2") x Length 104.8mm(4 1/8")] [Width 220mm(8.7") x Length 110mm(4.3")] [Width 162mm(6.4") x Length 114mm(4.5")]
[Thickness] [Weight] [Quality]
: 0.16mm(0.006") - 0.52mm(0.02") : 45g/m (12Ib.) - 75g/m (20Ib.) : Bond paper, Plain paper, Air mail
2 2
Note 1) Envelope printing is only available at normal temperature. Note 2) Keep the longer side of the envelope horizontally at setting.
1.2.2.4 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 203mm(8.0")] : Less than 0.23mm(0.0091")
[Thickness]
Note 1) No curled, wrinkled, scuffing or torn paper be used. Note 2) Set the lever to the proper position according to the paper type you print. (Refer to section 1.2.3 for details) Note 3) Printing should be performed at room temperature in spite of the paper types. Note 4) Perform printing under the room temperature.
1-4
Rev.A
EPSON Stylus Photo
1.2.3 Adjust Lever Settings (PG adjust lever)
The adjust lever located on the right side(blue) that is under the printer cover needs to be set to the proper position according to the paper you print. (Refer to the table below). Also, if there is any dirt caused by friction on the wavy or wrinkled paper, this can be prevented by changing the lever position to rear position (marked with "+") in spite of paper types. Table 1-4. Adjust Lever Settings Paper Normal paper, Coated paper Envelopes Lever position Front (0) Rear(+) PG adjustment value 0 mm (1.04mm between head and paper feed assembly) 0.9 mm (1.94mm between head and paper feed assembly)
+ 0
Paper Adjust Lever
Figure 1-2. Adjust Lever
Rev.A
1-5
Chapter 1 Product Description
1.2.4 Printing Area
1.2.4.1 Cut Sheet
The following table shows printable area. Table 1-5.Printable Area for Cut Sheet Paper size PW(Paper width) (typ) A4 210mm(8.3") Letter 216mm(8.5") B5 182mm(7.2") Legal 216mm(8.5") Statement 139.7mm(5.5") Executive 190.5mm(7.5") PL(Paper Length) (typ.) 297mm(11.7") 279mm(11.0") 257mm(10.1") 356mm(14.0") 215.9mm(8.5") 254mm(10")
LM
LM(Left margin) (min.) 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12")
RM(Right margin) (min.) 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12")
RM
TM(Top margin) (min.) 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12") 3mm(0.12")
BM(Bottom margin) (min.) 14mm(0.54") 14mm(0.54") 14mm(0.54") 14mm(0.54") 14mm(0.54") 14mm(0.54")
TM
Printable area
PL
BM PW
Figure 1-3. Printing Area for Cut Sheet
1-6
Rev.A
EPSON Stylus Photo
1.2.4.2 Envelope
The table and figure below show the printable area for envelopes. Table 1-6. Printable Area for Envelope Paper size 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")
#10 DL C6
LM
RM TM
Printable Area
BM
Figure 1-4. Printing Area for Envelope
Rev.A
1-7
Chapter 1 Product Description
1.2.5 Environmental Condition
Temperature Operating :10 to 35°C (Refer to the figure below for condition) Non-operating : -20 to 60°C (with shipment container) Note) 1 month at 40°C and 120 hours at 60°C
Humidity Operating Non-operating
: 20 - 80% RH (without condensation. Refer to the figure below for condition) : 5 - 85% RH (without condensation and with shipment container)
Humidity (%RH)
Guranteed Range
(50 F)
Temperature (80 F) (95 F) ( F)
Figure 1-5. Temperature/Humidity of Range
Resistance to shock Operating Non-operating
: 1G, within 1 ms : 2G, within 2 ms
X,Y,Z directions X,Y,Z directions (with shipment container)
Resistance to vibration Operating : 0.15G, 10 - 55Hz Non-operating : 0.50G, 10 - 55Hz
X,Y,Z directions X,Y,Z directions (with shipment container)
Note 1) Note 2) Note 3)
Note 4)
During non-operating, make sure that the head is capped. During the transport, make sure that the head is capped and ink cartridge is installed to the printer. If the head is not capped at the power-off state, turn the power on with installed ink cartridge and turn off the power after confirming that Power on operation is completed and the head is capped. Ink will be frozen under -4°C environment, however it will be useable after placing it more than 3 hours at 25°C.
1-8
Rev.A
EPSON Stylus Photo
1.2.6 Ink Cartridge Specifications
1.2.6.1 Black Ink Cartridge
Table 1-7. Black Ink Cartridge Specifications Item Type Color Print capacity Validity Environmental conditions Specifications Exclusive cartridge Black 540 pages / A4 (ISO/IE10561 Letter Pattern at 360 dpi) 2 years from production date(sealed in package) / 6months(out of package) Temperature Storage : -20 - 40°C (within a month at 40°C) Packing storage : -30 - 40°C (within a month at 40°C) Transit : -30 - 60°C (within 120 hours at 60°C and within a month at 40°C) Humidity 5 - 85%(without condensation) Resistance to vibration Sealed in package : 5 - 55Hz Acceleration : 29.4m/s less than 3G Direction : X, Y, Z direction Time : 1 hour Drop Sealed in package : Dropping height : Less than 0.8m Direction : Drop it facing the 6 areas, bottom, sides and one edge down.
Dimension Weight
19.8mm(W) x 52.7mm(D) x 38.5mm(H) Total ink cartridge : 54g Total ink :16.4±0.5g (Quantity in the ink cartridge) Consumable ink :More than 12.1g(Usable ink quantity until ink ends)
Note 1) Note 2) Note 3)
Ink cartridge can not re-fill, only ink cartridge is prepared for article of consumption. Do not use the ink cartridge which is 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.
Figure 1-6. Black Ink Cartridge
Rev.A
1-9
Chapter 1 Product Description
1.2.6.2 Color Ink Cartridge
Table 1-8. Color Ink Cartridge Specification Item Type Color Print capacity Validity Environmental conditions Specifications Exclusive cartridge 5 Colors(Magenta, Cyan, Yellow, Light Magenta, Light Cyan) 190 pages / A4 (360 dpi, 5% duty each color) 2 years from production date (sealed in package) / 6months(out of package) Temperature Storage : -20 - 40°C (within a month at 40°C) Packing storage : -30 - 40°C (within a month at 40°C) Transit : -30 - 60°C (within 120 hours at 60°C and within a month at 40°C) Humidity 5 - 85%(without condensation) Resistance to vibration Sealed in package : 5 - 55Hz Acceleration : 29.4m/s less than 3G Direction : X, Y, Z direction Time : 1 hour Drop Sealed in package : Dropping height : Less than 0.8m Direction : Drop it facing the 6 areas, bottom, sides and one edge down.
Dimension Weight
51.4mm(W) x 52.7mm(D) x 38.5mm(H) Total ink cartridge : 81g Total ink : 8.6±0.5g (Each color quantity in the ink cartridge) Only Yellow 11.7±0.5g Consumable ink : More than 8.7g for Yellow and 6.1g for other colors. (Usable ink quantity until ink ends)
Note 1) Note 2) Note 3)
Ink cartridge can not re-fill, only ink cartridge is prepared for article of consumption. Do not use the ink cartridge which is 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.
Cyan (C) Light Cyan(LC)
Yellow (Y) Light Magenta(LM) Magenta(M)
Figure 1-7. Color Ink Cartridge
1-10
Rev.A
EPSON Stylus Photo
1.2.7 Physical Specification
[Dimension] : 429mm(W) x 234mm(D) x 162mm(H) : 429mm(W) x 695mm(D) x 309mm(H) with extended stacker and paper support. : 5.2Kg
[Weight]
695mm
309mm 162mm
429mm
Figure 1-8. Dimension of EPSON Stylus Photo
1.2.8 Input Data Buffer
64 Kbytes
Rev.A
1-11
Chapter 1 Product Description
1.2.9 Electric Specification
120V version [Rated voltage] [Input voltage range] [Rated frequency range] [Input frequency range] [Rated current] [Power consumption] [Insulation Resistance] [Dielectric strength]
: AC120V : AC103.5 132V : 50 60Hz : 49.5 60.5Hz : 0.4A(Max. 0.5A) : Approx.15W(ISO/IEC 10561 Letter pattern) : Energy Star compliant : 10M ohms min.(between AC line and chassis, DC500V) : AC1000 V rms. 1 minute or AC1200 V rms. 1 second (between AC line and chassis) : AC220V 240V : AC198 264V : 50 60Hz : 49.5 60.5Hz : 0.2 A(Max. 0.3A) : Approx.15W(ISO/IEC 10561 Letter pattern) : Energy Star compliant : 10M ohms min.(between AC line and chassis, DC500V) : AC1500 V rms. 1 minute (between AC line and chassis)
220 240V version [Rated voltage] [Input voltage range] [Rated frequency range] [Input frequency range] [Rated current] [Power consumption]
[Insulation Resistance] [Dielectric strength]
1.2.10 Reliability
Total print volume Print head life
: 10,000 pages(A4, letter) : 2000 million dots/nozzle
1.2.11 Safety Approvals
[120V version] Safety standard
EMI
: UL1950 with D3 : CSA22.2 No.950 with D3 : FCC part 15 subpart B class B : CSA C108.8 class B
[220 - 240V] Safety standard EMI
: EN 60950(VDE,NEMKO) : EN55022(CISPR Pub.22) class B : AS/NZS 3548 class B
1.2.12 Acoustic Noise
Noise Level : Approx.45 dB(A) (According to ISO 7779)
1.2.13 CE Marking
[220 - 240V 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
1-12
Rev.A
EPSON Stylus Photo
1.2.14 Printer Language and Emulation
Printer Language : ESC/P Raster : EPSON Remote [ESC/P control codes]
< Character mode > General Operation Initialize Printer
: ESC@
Paper feeding Form Feed Line Feed Carriage Return
: FF : LF : CR
< Graphic mode > General operation Initialize Printer Unidirectional Printing Print a Image CSF Mode Control
: ESC@ : ESC U : ESC ACK* : ESC EM
Paper feeding: Form Feed Line Feed Line Spacing Carriage Return Page format Page Length Top/Bottom Margin Print position motion Horizontal Print Position Vertical Print Position Spacing Define Unit
: FF : LF : ESC+ : CR
: ESC(C : ESC(c
: ESC$, ESC\ : ESC (V,ESC (v
: ESC(U
Graphics Graphics Mode Raster Graphics Microweave control Dot size control Color Printing color EEPROM control EEPROM control
: ESC(G : ESC. : ESC(i : ESC(e
: ESC r, ESC(r
: ESC·b
Rev.A
1-13
Chapter 1 Product Description
1.3 Interface
This printer provides parallel interface and serial interface as standard.
1.3.1 Parallel Interface (Forward Channel)
[Transmission mode] [Synchronization] [Handshaking] [Signal level] [Adaptable connector] : 8 bit parallel, IEEE-1284 compatibility mode : By STOPBE pulse : BY BUSY and ACKLG signal : TTL compatible level : 57-30360 (amphenol) or equivalent
BUSY signal is set high before setting either/ERROR low or PE high and held high until all these signals return to their inactive state. BUSY signal is at 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
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 1-9 shows the signal and connector pin assignments for parallel interface(forward channel*1). In case of these signals, twist pair line is used and returning side is connected to signal GND. (*1): Forward channel is the mode when the ordinary data such as an order to print is sent from the PC to the printer. Table 1-9. Signal and Connector Pin Assignment for Parallel Interface Pin No. 1 2-9 Signal Name /STROBE DATA0-7 Return GND pin In/Out Functional Description 19 In The strobe pulse. Read-in of data is performed at the falling edge of this pulse. 20-27 In The DATA0 through DATA7 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. 28 Out This signal is a negative pulse indicating that the printer can again accept data. 29 Out A high signal indicates that the printer cannot receive data. 28 Out A high signal indicates paper-out error. 28 Out Always at high level when the printer is powered on. 30 In Not used. 30 In 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. 29 Out A low signal indicates printer error condition. 30 In Not used. Out Pulled up to +5V via 3.9K ohm resistor. Out Pulled up to +5V via 3.3K ohm resistor. Chassis GND. Signal GND. Not connected.
10 11 12 13 14 31
/ACKNLG BUSY PE SLCT /AFXT /INIT
32 36 18 35 17 16,33,19-30 15,34
/ERROR /SLIN Logic H +5V Chassis GND GND NC
Note) In/Out refers to the direction of signal flow from the printer's point of view.
1-14
Rev.A
EPSON Stylus Photo
1.3.2 Parallel Interface (Reverse Channel)
[Transmission mode] [Synchronization] [Handshaking] [Data trans. timing] [Signal level] : IEEE-1284 nibble mode : Refer to the IEEE-1284 specification : Refer to the IEEE-1284 specification : Refer to the IEEE-1284 specification : IEEE-1284 level 1 device : TTL compatible level [Adaptable connector] : 57-30360 (amphenol) or equivalent [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. Note) The printer sends following device ID string when it is requested. Table 1-10. Device ID Description <00H> *1 Contents <38H> MFG EPSON Production Maker CMD ESCPL2,BDC Command system MDL Stylus[SP]PHOTO Model name *2 CLS PRINTER Class Note*1) [00H] denotes a hexadecimal value of zero. Note*2) MDL value depends on the EEPROM setting. Model name can be changed by changing a certain address in the EEPROM. The table below shows pin assignment for reverse channel(*3). In these case of signals, twist pair line is used and returning side is connected to Signal GND. (*3): Reverse channel is the mode that any data is transferred from the printer to the PC. Table 1-11. Pin Assignment for Reverse Channel Pin No. 1 2-9 Signal Name HostClk Data0-7 Return GND pin 19 20-27 In/Out In In Functional description Host clock signal. The DATA0 through DATA7 signals represent data bits 0 to7, respectively. Each 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 bit 3 or 7. Acknowledge data request signal and reverse channel transfer data bit 2 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 resister. Pulled up to +5V via 3.3K ohm resister. Chassis GND. Signal GND. Not connected.
10 11 12 13 14 31 32 36 18 35 17 16,33,19-30 15,34
PrtClk PtrBusy, Data Bit-3,7 AckDataReq, DataBit-2,6 Xflag, DataBit-1,5 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 -
Note) In/Out refers to the direction of signal flow from the printer's point of view.
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Chapter 1 Product Description
Following lists "Notes" when using Parallel Interface.
Note1) "Return GND pin" in the table means twist pair return and is used for all control signals except for Logic H,+5V, Chassis, GND and NC. In this twist pair return, returning side is connected to GND (16, 33, 19-30 pin) for twist pair return. Also, these cables are shielded wires and it is effective to connect to each chassis GND in the PC and printer for electrostatic noise. Note2) Conditions for Interface are based on TTL level. Rise and fall time should be within 0.2µs. Note3) Refer to the figure 1-9 for transmission timing of each signals. Note4) Do not perform data transmission ignoring /ACK or BUSY signal. (Perform the data transmission after confirming that /ACK and BUSY signals are Low.) Note5) 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 them forcefully to /ACK and /STRB.
[Data Transmission Timing for Forward Channel]
DATA
data byte n thold
tsetup
Min. 500 ns
data byte n+1
Min. 500 ns
/STRB
Min. 500 ns
tstb
tnext Min. 0
BUSY
tready Min. 0
tbusy Max. 500 ns treply Min. 0 tack tnbusy Min. 0
/ACK
Min. 500 ns
Max. 10 us
Typical value of tack takes followig values according to Parallel I/F speed(by the settin of EEPROM 24H). High speed (default) 1 us. Ordinary 3us
tt-out Max. 120 ns : Rise and fall time of every output signals tt-in Max. 200 ns : Rise and fall time of everu input signals
Figure 1-9. Parallel Interface Timing Chart (Forward Channel)
Table 1-12. Maximum and Minimum Timing for Data Transmission Parameter Minimum tsetup 500ns thold 500ns tstb 500ns tready 0 tbusy --tt-out* --tt-in** --treply 0 tack 500ns tnbusy 0 tnext 0 * Rise and fall time of every output signals. ** Rise and fall time of every input signals. Typical time of tack is shown below. Table 1-13. Typical Time of Tack Parallel I/F mode High speed Normal speed Typical time of tack 1us 3us Maximum --------500ns 120ns 200ns --10us -----
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[Signal level: TTL compatible (IEEE-1284 level 1 device)] Table 1-14. Signal Level Parameter VOH* VOL* IOH* IOL* CO VIH VIL IIH IIL CI Minimum ---0.5V --------0.8V ------Maximum 5.5V --0.32mA 12mA 50pF 2.0V --0.32mA 12mA 50pF Condition
VOH = 2.4V VOL = 0.4V
VIH = 2.0V VIL = 0.8V
*A low logic level on the Logic H signal is 2.0V or less when the printer is powered off and this signal is equal or exceeding 3.0V when the printer is powered on. The receiver shall provide an impedance equivalent to 7.5K ohm to ground.
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Chapter 1 Product Description
1.3.3 Serial Interface
[Standard] [Synchronization] [Bit rate] [Word format] : based on RS-423 : Synchronous : Approx. 900Kbps : Start bit 1 bit : Data bit 8 bit : Parity bit none : Stop bit 1 bit : X-ON/X-OFF, DTR protocol : 8-pin mini circular connector : Apple System Peripheral-8 cable
[Handshaking] [Adaptable Connector] [Recommended interface cable]
Following table shows connector pin assignment and signals: Table 1-15. 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/On Out In Out In In Out Out In Function Description Synchronous clock Clear to send Transmit dataSignal ground Receive dataBalanced Transmit+ Data terminal ready Balanced Receive+
Note) In/out refer to the direction of signal flow as viewed from the printer. Following figure shows port arrangement of serial I/F connector.
8
7
6
5
4
3
2
1
Figure 1-10. Serial I/F Connector Port Following table shows timing relation of DTR, X-on/X-off handshaking. Table 1-16. DTR, X-ON/X-OFF Protocol State Busy Ready 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
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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 per minute, even if the printer is in busy state. This slow down is started when the rest of the input buffer becomes 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 printer has 2 built-in interfaces; the parallel interface and serial interface. 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 is 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.
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Chapter 1 Product Description
1.4 Control Panel
EPSON Stylus Photo does not require many buttons since the printer driver can start various settings and motions. Therefore, there are only 2 non-lock type push buttons, 1 lock type push button and 4 LEDs. Following figure shows control panel of EPSON Stylus Photo.
Power LED :Green Paper out LED:Red Ink Out (Black)LED :Red
Power SW Ink Out (Color) LED: Red Cleaning button Load/Eject button
Figure 1-11. Control Panel
1.4.1 Indicators
(1) Power Lights when the operate button is "ON", and AC power is supplied. (2) Paper out Lights during the paper-out condition, and blinks during the paper-jam 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.
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1.4.2 Panel Functions
[Panel Functions] Table 1-17. Panel Function Button Load/Eject (Pushing within 2 seconds) Load/Eject (Pushing for 2 seconds) Cleaning (Pushing for 2 seconds) Cleaning (Pushing within 2 seconds) Function
· Loads or Ejects the paper. · When carriage is on the Ink Cartridge change position, return carriage
from Ink Cartridge change position.
· Starts the Ink Cartridge change sequence.*
Moves the carriage to cartridge change position.
· Starts the Cleaning of head. · In the condition of "Ink Low" or "Ink Out" or "No Ink Cartridge" starts the
Ink Cartridge change sequence.*
· When carriage is on the Ink Cartridge change position, return carriage
from Ink Cartridge change position.
*This function is not available in printing status. [Panel Functions with Power ON] Table 1-18. Panel Function with Power On Button Load/Eject Cleaning Load/Eject + Cleaning Function
· Starts status printings.** · Changes a Code Page. · Enters the particular settings mode.(Factory use only.) · To enter the particular settings mode, it is necessary to push following
button while Paper Out LED is blinking.(It blinks about 5 seconds)
** status printings prints firmware version, ink counter, selected code page and nozzle check patterns. [Particular setting mode] Table 1-19. Particular Setting Mode Button Load/Eject (Pushing for 10 seconds) Function
· Initialize EEPROM*** and reset timer IC.
*** Refer to EEPROM map.(Refer to EEPROM map in the Appendix)
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Chapter 1 Product Description
[Maintenance Error Reset Procedure] You can reset the maintenance error by pressing the cleaning button after you enter the particular setting mode(Refer to table 1-18, 19). There are no function which can be reset the all address in EEPROM on the EPSON Stylus Photo. Following are detail procedure of maintenance error reset operation [Step 1] [Step 2] By pushing Load/Eject and Cleaning buttons at the same time, turn on the power switch. (By operating this performance, the LED for paper out starts blinking.(5 seconds only) ) Push the Load/Eject button for 10 seconds while the LED for Paper Out is blinking. If the printer accepts this function correctly, it returns to the standby mode after the Maintenance LEDs (both black and CMYcm) blink for 1 second. Following shows the lists that will be cleared by this performance. 1. Clear the value of Ink Counter 2. Clear Time IC 3. Initialization of I/F selection (returns to AUTO)
Note)
WARNING
Since EPSON Stylus Photo does not have "All Clear function" for EEPROM like other printers, do not perform this operation except for the purpose of the maintenance error reset. Be sure to replace a waste ink pad in the printer enclosure with a new one after you perform [Maintenance error reset procedure]. If the waste ink pad is replaced regardless of maintenance error, perform this operation.
1.4.3 Printer Condition and Panel Status
The table below shows printer condition and panel status. Since this table shows various error status and also presents printer status, you can judge appropriate repair ways from this table. Table 1-20. Printer Condition and Panel Status Printer status Power on condition Ink sequence Ink Cartridge change mode Data processing Paper Out 1* Paper jam condition1* No Ink cartridge or Ink end(black)1* Ink level low(black) No Ink cartridge or Ink end(color)1* Ink level low(color) Enter EEPROM and Timer IC reset 2* Maintenance request1* Fatal error1* Power On Blink Blink Blink --------------Blink Blink Indicators Ink Out Ink Out (Black) (Color) ----------------Off On Blink ------Off ----On Paper Out --------On Blink ------Priority 9 6 5 8 4 3 7 7 7 7 --2 1
--Blink --On On On (1 second only) (1 second only) (1 second only) Blink Blink Blink On On Blink
Note1*): Refer to section 1.5 for error status. Note2*): It does not mean that all address would be cleared. Note3*): --- means no changes.
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1.5 Error Status
When following status occur, the printer goes to the error status and stops taking data, setting the /ERROR signal in the interface as "Low", and Busy signal as "High". At this time, the printer goes to non printable status. Refer to section 1.4.3 for more details of LED Panel indicators during the various error status.
1.5.1 Ink Out
When the printer runs out most part of the ink of any one color, it warns ink-low and keeps printing. When the printer runs out the whole ink of any one color, it stops printing and indicates ink-out error. User is requested to install a new ink-cartridge in this state. A ink-cartridge once taken out should never be used again. Re-installation of the cartridge not filled fully upsets the ink level detection and may cause a serious problem in the print head as a result.
WARNING
Never use the ink cartridge once taken out.
Following explains above warning sign. [Step 1] After the cartridge is once taken out, bubbles come in from the ink supply hole located at the top of cartridge and are absorbed into the head during printing performance. Therefore, the head will be unable to discharge the ink properly. Also, inevitable entering of bubbles when installing a new ink cartridge can be absorbed to ink itself since the ink itself in the cartridge is deaerated during the production process. However, this absorbing ability can last only about one hour after the cartridge is installed. Even after the bubble absorbing ability described above stops, there is no worry about entering bubbles as long as the ink cartridge is being installed to the printer. However, if the ink cartridge which does not have absorbing ability any more is once removed from the printer, new coming bubbles into the cartridge will never disappear naturally. These bubbles may cause not only printing malfunction but also thickening ink. This thickened ink goes into the head and clogs ink path in the head or nozzle and may cause serious head damage. As standard specification for EPSON Stylus Photo, ink consumption counter is reset when the ink cartridge is removed. If an ink cartridge is removed and re-installed unnecessarily the value on the ink consumption monitor which the user can check will be wrong and printer may keep printing even though the ink cartridge is installed empty. This may cause head damage.
[Step 2]
[Step 3]
1.5.2 Paper Out
When printer fails to load a sheet after power on operation including timer-cleaning is done and Load/Eject button on the FF command or operation panel is pressed, it goes paper out error.
1.5.3 Paper Jam
When the printer fails to eject a sheet even after feeding motion is completed or Load/Eject button on the FF command or operation panel is pressed, it goes paper jam error.
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Chapter 1 Product Description
1.5.4 No Ink-Cartridge
Following reasons can be the causes when printer goes to this error mode. 1) When the printer is turned on for the first time. (This is a normal error state and it returns to the normal state after installing an ink cartridge according to the ink cartridge exchange operation.) 2) Ink cartridge exchange operation is not done correctly. After the position of carriage is moved by exchange operation, if the cleaning button is pushed without installing ink cartridge or if the carriage returns to the home-position automatically without doing any operation, it is considered as handling mistake. However, it returns to normal state by performing ink exchange operation again and installing cartridge correctly. 3) If "No ink-cartridge error" appears even after the ink cartridge is installed, the printer must be something wrong and around the sensor area in the carriage need to be repaired. 4) If sometimes printer can print normally but also sometimes "No ink-cartridge error" appears, the printer must be something wrong. (Same reason as 3) above)
1.5.5 Maintenance Request
When the total quantity of ink wasted through the cleanings and flushing reaches to the limit, printer indicates this error and stops. The absorber in the printer enclosure is needed to be replaced with new one by a service person. The ink quantity that is absorbed by the absorber (waste ink pad) is monitored by the software counter as "total ink counter". This counter is added by point system and also absorber's maximum ability is set at the following reference value. 37000 X 0.0113 ml = Approximately 418 ml
1-point = 0.0113ml (the value which is multiplied evaporating rate and 1-dot ink weight 0.02ml) 37000 = Maximum point number (Maintenance error threshold)
However, considering dispersion of ink absorbing quantity and the number of using nozzles, ink total value is calculated by the following formula.
418 X 1.1/ 67% = 526 ml (but up to 687ml can be retained)
WARNING
When you perform self test after completing repairs, it is possible to check the present value of total ink counter conditions of all nozzles by performing status printing in the built-in function. Therefore, make sure that the printer has enough value of total ink counter (if the number is close to 29500 or not). If there is not enough value, the service man is required to judge if it is necessary to clear EEPROM after replacing the absorber (waste ink pad) or not. Refer to section 1.4.2 if you need to perform EEPROM Clear.
1.5.6 Fatal Errors
When printer detects fatal errors such as carriage control error or CG access error, it goes to this error mode. Refer to followings for each error. 1) Carriage control Error : Parallel adjustment malfunction, HP detection malfunction, shortage of lubricant on the carriage guide shaft, etc. 2) CG Access Error : Short circuit, etc.
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1.6 Printer Initialization
EPSON Stylus Photo has three kinds of initialization methods. Following explains each initialization. [1.Power-on initialization] This printer is initialized when turning the printer power on, or printer recognized the cold-reset command (remote RS command). When printer is initialized, following action is performed. (a) Initializes printer mechanism. (b) Clears input data buffer. (c) Clears print buffer. (d) Sets default values. [2.Operator(Panel) initialization] This printer is initialized when turning the printer power on again within 10 seconds from last power off, or printer recognized the /INIT signal (negative pulse) of parallel interface. When printer is initialized, following action is performed. (a) Cap the printer head. (b) Eject a paper. (c) Clears input data buffer. (d) Clears print buffer. (e) Sets default values. [3. Software initialization] The ESC@ command also initializes the printer. When printer is initialized, following action is performed. (a) Clears print buffer. (b) Sets default values.
1.7 Initialization Settings
EPSON Stylus Photo initializes following settings when the initialization is performed. Also, if the user changes the settings in the Panel setting, Default setting or Remote command setting, values or settings which are possible to be stored are initialized as initialization settings.
Page position Line spacing Right margin position Left margin position Character pitch Printing mode
: Page heading location as present paper location : 1/6 inch : 80 lines : first line : 10CPI : Text mode (Not Raster graphics mode)
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Chapter 1 Product Description
1.8 Main Components
EPSON Stylus Photo has following major units. Also, it is one of the major characteristics that the bottom of the Printer mechanism plays the role as Lower case at the same time. Each units from 2) to 4) are simply explained as following. 1) C209 Main control board 2) C206 PSB/PSE(Power Supply Board) 3) C209 PNL(Panel Board) 4) Printer Mechanism 5) Upper Case
1.8.1 C209 Main Control Board
In the C209 main control board, TMP95C061BF(Toshiba, TLCS900/H series) is mounted and it is operated by 25.0 MHz drive frequency. By this CPU, circuit in 16 bit bus width is consisted and various memories are added. These memories are controlled by MMU of the gate array(E05B43YA).
IC14 CR Motor Driver IC15PF Motor Driver CN1 Parallel I/F CN2 Serial I/F
IC7 Head Driver
IC11Timer IC11 EEPROM
IC3 P-ROM (4M) IC5 D-RAM (4M) IC1 CPU (TMP95C061BF) IC2 Gate Array (E05B43YA)
Figure 1-12. C209 Main Control Board
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1.8.2 C206 PSB/PSE(Power Supply) Board
The C206 PSB/PSE board is a switching regulator type power supply unit and constantly supplies stable logic and power voltages to the printer mechanism and the main control board. Also, since this C206 PSB/PSE board has the power switch in the secondly side of the circuit, it is possible to keep supplying electricity to the C209 MAIN control board for 30 seconds even after the power switch is turned off. Using this time difference, even when mis-operation is done by the user such as turning off the power during the middle of printing work, it prevents unexpected trouble with the printhead from occurring, by transferring the printhead to the cap position before complete shut down. The C206 PSB Board is for AC100 - 120V input voltage and the C206 PSE Board is for AC220-240V input voltage.
F1 Fuse Q1 Main FET T1 Maintrans
CN1 AC Input
CN1 Power Output
L1 Filter
PC1 Photo Coupler for Power Supply Control C11 Smoothing Electrolytic Capacitor
Figure 1-13. C206 PSB Board
1.8.3 C209PNL Panel Unit
Panel unit (C209 PNL board) consists of 3 switches, 4 LEDs and 1 connector as they are illustrated in the figure below.
Load/Eject SW Cleaning SW Power SW Power LED
Paper Out LED Ink Out(Black) LED Ink Out(Color) LED
Figure 1-14. C209 PNL Panel Unit
1.8.4 Printer Mechanism
This printer mechanism consists of ASF(auto sheet feeder) mechanism, paper load mechanism, carriage mechanism, print head, pump mechanism and waste ink absorber.
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Chapter 1 Product Description
1.8.5 Housing
This printer's housing consists of upper case, print cover, paper support and paper eject tray. In this printer, there is no lower case since the printer mechanism plays its role.
Paper Support
Printer Cover
Upper Case
Figure 1-15. Housing
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Chapter 2 Operating Principles
2.1 OVERVIEW ............................................................................................................2-1
2.1.1 Printer Mechanism ................................................................................................................. 2-1 2.1.1.1 Printing Mechanism ................................................................................................... 2-2 2.1.1.1.1 Printing Process ............................................................................................. 2-3 2.1.1.1.2 Printing Method .............................................................................................. 2-4 2.1.1.2 Carriage Mechanism ................................................................................................. 2-7 2.1.1.2.1 Paper Gap Adjust Mechanism ..................................................................... 2-10 2.1.1.3 Paper Feed Mechanism and Pump Mechanism ......................................................2-11 2.1.1.4 Ink System............................................................................................................... 2-14 2.1.1.4.1 Pump, Carriage Lock, Head Cleaner Mechanism........................................ 2-15 2.1.1.4.2 Cap Mechanism ........................................................................................... 2-17
2.2 Electrical Circuit Operating Principles .............................................................2-18
2.2.1 C206 PSB/PSE Power Board ............................................................................................... 2-18 2.2.2 C209 Main Board .................................................................................................................. 2-20 2.2.2.1 Reset Circuits .......................................................................................................... 2-21 2.2.2.2 Sensor Circuits ........................................................................................................ 2-22 2.2.2.3 EEPROM Control Circuits ....................................................................................... 2-23 2.2.2.4 Timer Circuit ............................................................................................................ 2-24 2.2.2.5 Print Head Drive Circuit ........................................................................................... 2-25 2.2.2.6 Motor Drive Circuits ................................................................................................. 2-27
2.3 Ink System Control .............................................................................................2-28
2.3.1 Ink System Basic Functions................................................................................................ 2-28 2.3.2 Timers and Counters............................................................................................................ 2-29 2.3.3 Ink System Sequence........................................................................................................... 2-30
Chapter2 Operating Principles
2.1 OVERVIEW
This section describes Printer Mechanism, electric circuit board (C206 PSB/PSE, C209 Main, C209PNL board) of EPSON Stylus Photo.
2.1.1 Printer Mechanism
Unlike the previous EPSON Ink Jet printers, printer mechanism of EPSON Stylus Photo does not have exclusive mechanism to change over paper feeding and pumping operation. In stead, this control is done by the turning direction of paper feed/pump motor and changing the position of carriage at that time. Also, unlike previous print heads, the print head of this printer became one unit combined with black, CMY(Cyan, Magenta, Yellow), LM(Light Magenta) and LC(Light Cyan) head. Black head has 32 nozzles, 90 dpi(vertical direction) and CMY, LC, LM head has 32 nozzles for each color, 90 dpi (vertical direction). Also, since these print head is driven by frequency 14.4KHz, this printer can print twice faster (200-dpi) than Stylus Color even at 720-dpi high resolution printing. Since the head drive frequency of Stylus Color was 7.2KHz, it was driven by 100-cps printing speed in order to perform 720-dpi printing. Following figure2-1 shows outline of the printer mechanism.
Carriage Unit (Prinr Head Unit)
Platen Drive Mechanism
Timing Belt
Paper Pickup Mechanism
Paper Pick Up Trigger Lever
Pumping Position
Pump Drive Mechanism
Paper Feed Motor
Carriage Motor
Figure 2-1. EPSON Stylus Photo Printer Mechanism Block Diagram
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EPSON Stylus Photo As you can see major printer mechanisms in the figure 2-1, there are four major mechanisms as they are listed below.
1) Printing mechanism 2) Carriage drive unit 3) Paper pick up mechanism 4) Pump drive mechanism
2.1.1.1 Printing Mechanism
Basic operating principles of the print head which plays major role of printing mechanism is the same as previous models; on demand type MACH head method, but there is some differences in the resolution. (Refer to figure1-1) Also, unlike Stylus Color II, Stylus 820 and Stylus Color 200 automatic correction type, in order to fix the dispersion of mufti layer piezo electric element which is used for driving each nozzles, it is necessary to input the VH value written on the side of print head by using exclusive program when you replace the print head, control board, or the printer mechanism.(However, there are no resistor array to decide the VH voltage on the main control board.) Following explains the print heads.
PZT PZT is an abbreviation of Piezo Electric Element. Print signal from C209 board is sent through the driver board on the print head unit and to the PZT. Then, the PZT pushes the top cavity which has ink stored, and make the ink discharge from each nozzle located on the nozzle plate. Cavity Set Ink which is absorbed from ink cartridge go through the filter and will be stored temporarily in this tank, which is called "cavity", until PZT is driven. Nozzle Plate The board with nozzle holes on the printer head surface is called Nozzle Plate. Filter When the ink cartridge is installed, if any dirt or dust around the cartridge needles are absorbed into the head inside, there is a great possibility of causing nozzle clog and disturbance of ink flow and finally causing alignment failure and dot-missing. In order to prevent this, filter is set at cartridge needle below and ink is once filtered here.
Printhead driver board
Ink Cartridge Sensor Actuator Cartridge needle
(Ink Cartridge)
PZT Cavity set Nozzle Plate
Filter Ink Supply Tube
Figure 2-2. Print Head Sectional Drawing
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Chapter2 Operating Principles
2.1.1.1.1 Printing Process
Following figures indicate the sectional drawing of normal state and ejecting state of print head. (1) Normal State: When the printing order is not output, PTZ also does not move and stays in the waiting mode (normal state).
Ink Course
PZT
Cavity
Nozzle
Nozzle Plate
Figure 2-3. Print Head Normal State
(2) Ejecting State: When the print signal is output from the C209 main board, IC(IR2C72C and IR2C73C:Nozzle Selector) located on the print head unit latches the data once by 1-byte unit. Appropriate PZT latched by nozzle selector is pushed in to the cavity by applying common voltage from the C209 main board. By this operation, ink that is stored in the cavity pops out from nozzles.
Figure 2-4. Print Head Ejecting State
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2.1.1.1.2 Printing Method
This section explains printing method of actual printing such as printing text at various resolution select/printing mode and graphics printing. In order to prevent white or color banding which are peculiar problem of ink-jet, new Micro-Weave functions are added to the previous Micro-Weave function. The number of nozzles and printing mode according to the selected resolution are used separately by a user. The table below shows relation between selected resolution and printing mode. 1) 2) 3) Full Overlap Micro-Weave Part Line Overlap Micro-Weave Micro-Weave: (same as previous control) Table 2-1. Resolution and Printing Mode Vertical direction [dpi] 360 720 Printing mode Paper feed pitch [inch] 15/360 31/360 15/720 29/720 Forward OverlapNozzle #16·`#30 --#16·`#30 #30·`#32 Non OverlapNozzle --#1·`#31 --#4·`#29 Backward OverlapNozzle #1·`#15 --#1·`#15 #1·`#3 Not used Nozzle
FOL M/W M/W FOL M/W POL M/W
#31, #32 #32 #31, #32 ---
Note1: Note2: Note3: Note4:
M/W means Micro-Weave. FOL means Full Overlap Micro-Weave. POL means Part line Overlap Micro- Weave. Forward Overlap-Nozzle and backward Overlap -Nozzle are described in the [1.Full Overlap Mirco-Weave] and [2.Part line Overlap Micro-Weave] below.
Following explains operation outlines of new Micro-Weave functions listed above. [1. Full Overlap Micro-Weave] In order to print one line at horizontal direction, this printing method is designed to complete a printing pattern by two-pass carriage operation with two different types of dot. When these two different types of dot pass one same line twice, it does not print the same dot twice. Following explains the outline of this movement.
The number of all nozzles which are going to be used are divided equally into 2 groups. Paper feeding will be done as many as each number of nozzles which are divided into two groups and the same number of dots.(for example, if there are two 10-nozzle groups during 360-dpi printing at longitudinal direction, paper feeding of 10/360-inch becomes available.) At this time, two groups perform Micro-Weave individually and particular lines are passed by two different nozzles.
Note1) Two groups which are divided according to each elements will be divided either even dot or odd dot when particular lines(level direction line) are formed and eventually, these lines will be completed at selected resolution. Following is a conceptual figure when full overlap microweave forms a particular line.
Nozzle No.#9 Nozzle No.#4
Condition: 360-dpi printing Nozzle: Total 10 nozzle/each color
Particular line(Completed line)
360-dpi
Figure 2-5. Full Overlap Micro-Weave
2-4
Rev. A
Chapter2 Operating Principles Note 2)
The way firmware decides which nozzle becomes even dot or odd dot is determined as it is described below.
If the line which is about to be printed is even line: First dot prints odd dot lines and 2nd dot prints even dot lines.
If the line which is about to be printed is odd line: 1st dot prints even dot lines and 2nd dot prints odd dot lines. Eventually, horizontal resolution will be the same resolution as selected one.
[2.Part Line Overlap Micro-Weave] This printing method is to perform Micro-Weave printing, overlapping part of nozzles which are used for printing. As a result, a part of line which is overlapped consists of different browse with different nozzles. The figure below shows 1-line overlap at 5-dot sending as an example with explanation on the next page.
Pass1
#1 #2 #3 #4 #5 #6
2 3 4
Note1: The paper feed pitch is 5/360-dpi in this figure. Note2: Mark of and mean overlap nozzle.
5 6 7
Raster 1
Raster 10
8 9 10 11
Figure 2-6. Part line Overlap Micro-Weave
Rev. A
2-5
EPSON Stylus Photo
The difference between Full-Overlap Micro-Weave and Part line Overlap Micro-Weave are following;
Full-Overlap Micro-Weave: Printing is performed, judging if nozzles are even or odd dot by 2 different dots in all different lines. Part line Overlap Micro-Weave: After particular nozzles(only#1, and #6 in the figure2-6) are determined as overlap nozzles, even or odd dot will be determined like Full-overlap Micro-Weave does. (Forward Overlap Nozzle is determined as even and backward nozzle is odd.) Also, nozzles other than particular nozzles can print at even and odd dot just by one nozzle.
: Head drive frequency is driven half of the ordinal one like 2) below. : Head drive frequency is twice as much as overlap nozzle.
1) Overlap Nozzle 2) Nozzle other than Overlap nozzle
Usually, the firmware changes over automatically these full overlap Micro-Weave, Part line Overlap Micro-Weave, and ordinal Micro-weave according to the selection of resolution. Also, when these three printing modes are performed by the EPSON Stylus Photo, the printer performs top and bottom margin process in order to co