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SERVICE MANUAL
Color Inkjet Printer
EPSON Stylus C 60
®
SEIJ01005
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. 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 © 2000 SEIKO EPSON CORPORATION. TPCS Quality Assurance Dept.
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. 4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIER FROM METAL PARTS WITH SHARP EDGES.
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 the printer. 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.
Manual Configuration
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 Describes the step-by-step procedures for the troubleshooting. CHAPTER 4.DISASSEMBLY / ASSEMBLY Describes the step-by-step procedures for disassembling and assembling the product. CHAPTER 5.ADJUSTMENT 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. CHAPTER 7.APPENDIX Provides the following additional information for reference: · Connector pin assignments · Electric circuit boards components layout · Electrical circuit boards schematics · Exploded diagram & Parts List
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 NOTE, CAUTION, or WARNING messages.
A D J U S T M E N T R E Q U IR E D
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. I.ndicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life. Indicates that a particular task must be carried out according to a certain standard after disassembly and before re-assembly, otherwise the quality of the components in question may be adversely affected.
C A U T IO N
C H E C K P O IN T
W A R N IN G
Revision Status
Revision Issued Date Description
A
2002/8/6
First Release
Contents
Chapter 1 PRODUCT DESCRIPTION
1.1 FEATURES ......................................................................................................... 4 1.2 SPECIFICATIONS ............................................................................................ 5 1.2.1 Physical Specification .................................................................................. 5 1.2.2 Printing Specification .................................................................................. 5 1.2.3 Paper Feeding .............................................................................................. 6 1.2.4 Paper Specification ...................................................................................... 6 1.2.4.1 Plain paper ........................................................................................... 6 1.2.4.2 Envelope .............................................................................................. 7 1.2.4.3 Exclusive paper ................................................................................... 7 1.2.5 Printing Area ................................................................................................ 9 1.2.5.1 Cut sheet .............................................................................................. 9 1.2.5.2 Envelopes .......................................................................................... 10 1.2.6 Ink Cartridge Specification ........................................................................ 10 1.2.6.1 Black ink cartridge ............................................................................ 10 1.2.6.2 Color ink cartridge ............................................................................. 11 1.2.7 Electric Specification ................................................................................. 11 1.2.8 Environmental Condition ........................................................................... 12 1.2.9 Reliability .................................................................................................. 12 1.2.10 Safety Approvals ..................................................................................... 12 1.2.11 Acoustic Noise ......................................................................................... 12 1.2.12 CE Marking ............................................................................................. 12 1.3 INTERFACE ..................................................................................................... 1.3.1 Parallel Interface (Forward Channel) ........................................................ 1.3.2 Parallel Interface (Reserve Channel) ......................................................... 1.3.3 USB Interface ............................................................................................ 1.3.4 Prevention Hosts of Data Transfer Time-out ............................................. 1.3.5 Interface Selection ..................................................................................... 1.3.6 IEEE1284.4 Protocol ................................................................................. 13 13 16 17 18 18 18 1.4.2 Panel Functions .......................................................................................... 1.4.3 Printer Condition and Panel Status ............................................................ 1.4.4 Error Status ................................................................................................ 1.4.5 Printer Initialization ................................................................................... 20 20 21 21
Chapter 2 Operating Principles
2.1 Overview ............................................................................................................ 2.1.1 Printer Mechanism ..................................................................................... 2.1.2 Printhead .................................................................................................... 2.1.2.1 Printing Process ................................................................................. 2.1.2.2 Printing Method ................................................................................. 2.1.3 Carriage Mechanism .................................................................................. 2.1.4 Paper Loading/Feeding Mechanism .......................................................... 2.1.4.1 Paper Loading Mechanism (ASF unit) .............................................. 2.1.4.2 Paper Feeding Mechanism ................................................................ 2.1.5 Ink System Mechanism ............................................................................. 2.1.5.1 Capping Mechanism .......................................................................... 2.1.5.2 Pump unit mechanism ....................................................................... 2.1.6 Ink Sequence .............................................................................................. 2.2 Electrical Circuit Operating Principles .......................................................... 2.2.1 C417 PSB/PSE board ................................................................................ 2.2.2 C418 MAIN Board .................................................................................... 2.2.2.1 Main Elements ................................................................................... 2.2.2.2 Printhead Driver Circuit .................................................................... 2.2.2.3 PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit .......................... 2.2.2.4 CR Motor Driver Circuit ................................................................... 2.2.2.5 Reset Circuit ...................................................................................... 2.2.2.6 EEPROM Control Circuit ................................................................. 2.2.2.7 Sensor Circuit .................................................................................... 23 23 24 25 25 26 27 28 31 32 32 34 35 37 37 40 41 42 43 43 44 44 45
1.4 PANEL CONTROL ......................................................................................... 19 1.4.1 Indicators (LEDs) ...................................................................................... 19
Chapter 3 Troubleshooting
3.1 Overview ............................................................................................................ 47 3.2 Troubleshooting with LED Error Indications and Status Monitor 3 Message ...................................................................... 48 3.3 Unit Level Troubleshooting ............................................................................. 53
Chapter 6 Maintenance
6.1 Overview .......................................................................................................... 6.1.1 Cleaning ................................................................................................... 6.1.2 Service Maintenance ................................................................................ 6.1.3 Lubrication ............................................................................................... 113 113 113 115
Chapter 4 Disassembly and Assembly
4.1 Overview ............................................................................................................ 4.1.1 Precautions ................................................................................................. 4.1.2 Tools .......................................................................................................... 4.1.3 Screws ........................................................................................................ 4.1.4 Work Completion Check ........................................................................... 73 73 75 75 76
Chapter 7 Appendix
7.1 Connector Summary ...................................................................................... 119 7.1.1 Major Component Unit ............................................................................ 119 7.1.2 EEPROM Address Map ........................................................................... 121 7.2 Component Layout ......................................................................................... 125 7.3 Exploded Diagram .......................................................................................... 126 7.4 Parts List ......................................................................................................... 131 7.5 Electrical Circuits ........................................................................................... 133
4.2 Disassembly ....................................................................................................... 77 4.2.1 Upper housing removal .............................................................................. 78 4.2.2 Printhead removal ...................................................................................... 80 4.2.3 CR unit removal ......................................................................................... 82 4.2.4 CR motor removal ..................................................................................... 85 4.2.5 ASF unit removal ....................................................................................... 86 4.2.6 PSB/PSE unit removal ............................................................................... 88 4.2.7 Holder shaft unit removal .......................................................................... 91 4.2.8 Circuit board removal ................................................................................ 95 4.2.9 Waste drain ink pad (under the ASF unit) removal ................................... 98 4.2.10 Lower housing removal ........................................................................... 99 4.2.11 Caution regarding Ink system removal, PF roller unit removal and PF motor removal ..................................................... 103 4.2.12 Ink system unit removal (Cap unit, Pump unit & Waste drain ink pad) .................................................. 104 4.2.13 PF roller unit removal ............................................................................ 107 4.2.14 PF motor removal .................................................................................. 109
Chapter 5 Adjustment
5.1 Overview .......................................................................................................... 111 5.1.1 Required Adjustment ............................................................................... 111
CHAPTER
1
PRODUCT DESCRIPTION
EPSON Stylus C60
Revision A
1.1 FEATURES
The major features of EPSON color inkjet dot matrix printer EPSON Stylus C60 are: High color print quality 2880 (H) X 720 (V) dpi printing Four Color Printing (YMCK) Traditional and New Microweave Built-in auto sheet feeder Holds 100 cut-sheets (65g/m2) Holds 10 envelopes Holds 10 transparency films Two built-in interfaces Bi-directional parallel I/F (IEEE-1284 level 1 device) USB Windows/Macintosh exclusive
Figure 1-1. Product's external view
PRODUCT DESCRIPTION
FEATURES
4
EPSON Stylus C60
Revision A
Print direction Bi-direction with logic seeking
1.2 SPECIFICATIONS
This section covers specifications of the printer.
Print speed & printable columns
1.2.1 Physical Specification
Weight Dimension Printing : 3.42 kg (without the ink cartridges) : 479.6 mm (W) x 509 mm (D) x 271.8 mm (H)
Character pitch 10 CPI
Table 1-1. Character mode (Black only)
Character quality LQ Printable columns 80 CR speed 238 CPS*
*CPS: Characters/Second
1.2.2 Printing Specification
Print method On demand ink jet Nozzle configuration Monochrome 144 nozzles (48 x 3 staggered) Color 48 nozzles x 3 (Cyan, Magenta, Yellow)
360 dpi #144 #141 #138 #135 #143 #140 #137 #134 #142 #139 #136 #133 #48 #47 #46 #45 120 dpi #48 #47 #46 #45 360 dpi
Table 1-2. Raster graphics mode
Horizontal resolution 360 dpi (Normal dot) 360 dpi (Multi shot 3 dot) 720 dpi 1440 dpi Printable area 209.8 mm (8.26 inch) 209.8 mm (8.26 inch) 209.8 mm (8.26 inch) 209.8 mm (8.26 inch) Available dot 2976 2976 5952 11904 CR speed 86.36 cm/s (34.0 IPS*) 60.452 cm/s (23.8 IPS*) 50.80 cm/s (20 IPS*) 50.80 cm/s (20 IPS*)
* IPS: Inch/Second Control code ESC/P Raster command EPSON Remote command Character tables
#9 #6 #3
#8 #7 #5 #4 #2 #1 #1 #2 7.902 (112/360inch) #3 #3 #2 #1 2.2578 (32/360inch)
None - ASCII 96 Codes (Code Number 20H-7FH) International character sets None
(Black1)
(Black3) (Black2) (Cyan)
(Magenta) (Yellow)
Figure 1-2. Nozzle configuration
PRODUCT DESCRIPTION
SPECIFICATIONS
5
EPSON Stylus C60
Typeface Bit map LQ font : EPSON Courier 10 CPI Input data buffer 32 KB
Revision A
1.2.4 Paper Specification
1.2.4.1 Plain paper
Table 1-4. Plain paper
Item A4 Letter Legal Executive Half Letter B5 Width (mm) 210 215.9 215.9 184.2 139.7 182 148 105 89-241.3 Length (mm) 297 279.4 355.6 266.7 215.9 257 210 148 89-1117.6 0.08-0.11 64-90 (17-24(lb)) Plain paper Reclaimed paper Thickness (mm) Weight (g/m 2) Quality
1.2.3 Paper Feeding
Feeding method Friction feed with ASF Paper path Cut-sheet ASF (Top entry Front out) Feed speed
Table 1-3. Feed speed
Feed condition 10.16 mm (0.4 inch) feed Continuous feed Time 110 msec 140 msec Speed 92.36 mm (3.64 inch)/sec 139.7 mm (5.5 inch)/sec
A5 A6 User defined
C A U T IO N
Poor quality paper may reduce print quality and cause paper jams or other problems. If you encounter problems, switch to a higher grade of paper. Do not load curled or folded paper. Use paper under normal conditions ; - Temperature 15 to 25°C (59 to 77°F) ° ° - Humidity 40 to 60% RH
PRODUCT DESCRIPTION
SPECIFICATIONS
6
EPSON Stylus C60
Revision A
1.2.4.2 Envelope
Table 1-5. Envelope
Item No.10 DL C6 Envelope 220*132 Width (mm) 241.3 220 162 220 Length (mm) 104.8 110 114 132 N/A 45-75 (12-20(lb)) Bond paper Air mail PPC Thickness (mm) Weight (g/m 2) Quality *
1.2.4.3 Exclusive paper
Quality: EPSON Exclusive paper Transparency printing is only available at normal temperature
Table 1-6. Exclusive paper
Item Size A4 Photo Quality Ink Jet Paper Letter Legal B5 5*8 Photo Quality Ink Jet Card Width (mm) 210 215.9 215.9 182 127 203.2 105 210 215.9 215.9 210 215.9 210 215.9 105 210 215.9 Length (mm) 297 279.4 0.13 355.6 257 203.2 254 148 297 0.11 Letter Premium Luster Photo Paper Ink Jet Transparencies Letter A4 Photo Quality Glossy Film Letter A6 Matte PaperHeavyweight A4 Letter 279.4 297 279.4 148 297 0.23 279.4 167(44Ib) 0.13 N/A Letter A4 279.4 279.4 297 0.13 N/A 0.27 250 (66lb) 89 (24lb) 0.21 180 (48lb) 102 (27lb) Thickness (mm) Weight (g/m 2) 102 (27lb) *
* Envelope printing is only available at normal temperature. Keep the longer side of the envelope horizontally at setting.
C A U T IO N
Poor quality paper may reduce print quality and cause paper jams or other problems. If you encounter problems, switch to a higher grade of paper. Do not load curled or folded paper. Use paper under normal conditions ; - Temperature 15 to 25°C (59 to 77°F) ° ° - Humidity 40 to 60% RH
8*10 A6 A4
360dpi Ink Jet Paper
PRODUCT DESCRIPTION
SPECIFICATIONS
7
EPSON Stylus C60 Table 1-6. Exclusive paper
Item Size A4 Letter Photo Paper Card Photo Paper 4*6 Panorama Photo Quality Self Adhesive Sheets Photo Stickers 16 Photo Stickers 4 Iron-On Cool Peel Transfer Paper Premium Glossy Photo Paper Premium Semigloss Photo Paper Premium Ink Jet Plain Paper Bright White Ink Jet Paper A4 A6 A6 A4 Letter A4 Letter A4 Letter A4 A4 Width (mm) 210 215.9 100 113.6 210 210 105 105 210 215.9 210 215.9 210 215.9 210 210 Length (mm) 297 279.4 148 175.4 594 297 148 148 297 0.18 279.4 297 0.27 279.4 297 0.27 279.4 297 297 0.11 0.13 80 (21lb) 92.5 (25lb) 250 (66lb) 255 (68lb) 124 (33lb) 0.19 0.19 0.19 167 (44lb) 167 (44lb) 167 (44lb) 0.23 194 (52lb) Thickness (mm) Weight (g/m 2)
C A U T IO N
Revision A
Poor quality paper may reduce print quality and cause paper jams or other problems. If you encounter problems, switch to a higher grade of paper. Do not load curled or folded paper. Use paper under normal conditions ; - Temperature 15 to 25°C (59 to 77°F) ° ° - Humidity 40 to 60% RH EPSON Photo Quality Glossy Film and Self Adhesive Sheets should be stored under the following conditions ; - Temperature 15 to 30°C (59 to 86°F) ° ° - Humidity 20 to 60% RH
*
98 (26lb) for EU
PRODUCT DESCRIPTION
SPECIFICATIONS
8
EPSON Stylus C60
Revision A
1.2.5 Printing Area
1.2.5.1 Cut sheet
Refer to the following table. As for each margin area, refer to Figure 1-3. LM
PW RM
Table 1-7. Printing area
Paper size A4 Letter B5 Legal Statement Executive Left margin (min.) 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") Right margin (min.) 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") Top margin (min.) 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") Bottom margin (min.) 14 mm (0.54") / 3mm (0.12") * 14 mm (0.54") / 3mm (0.12") * 14 mm (0.54") / 3mm (0.12") * 14 mm (0.54") / 3mm (0.12") * 14 mm (0.54") / 3mm (0.12") * 14 mm (0.54") / 3mm (0.12") *
TM
Printable area
PL
*
Bottom margin can be set to 3 mm at minimum when the paper length is designated with "ESC (S" command). However, the printing quality is not guaranteed in the area, ranging from 3 mm to 14 mm, from the form lower end. When the paper length is not designated, the bottom margin must be wider than 14 mm.
BM
Figure 1-3. Printable area for cut sheet
PRODUCT DESCRIPTION
SPECIFICATIONS
9
EPSON Stylus C60
Revision A
1.2.5.2 Envelopes
Refer to the following table. As for each margin area, refer to Figure 1-4.
1.2.6 Ink Cartridge Specification
1.2.6.1 Black ink cartridge
Type
Bottom margin (min.) 14 mm (0.55") 14 mm (0.55") 14 mm (0.55")
Table 1-8. Envelope margin
Paper size #10 DL C6 Left margin (min.) 3 mm (0.12") 3 mm (0.12") 3 mm (0.12") Right margin (min.) 28 mm (1.10") 7 mm (0.28") 3 mm (0.12") Top margin (min.) 3 mm (0.12") 3 mm (0.12") 3 mm (0.12")
: Exclusive cartridge : Black
Color
Print capacity : 600 pages/A4 (ISO/IEC 10561 Letter Pattern at 360 dpi) Ink life Storage temperature: Storage -20 oC to 40 oC (within a month at 40 oC) Packing -30 oC to 40 oC (within a month at 40 oC) Transit -30 oC to 60 oC (within 120 hours at 60 oC and within a month at 40 oC) Dimension : 28.1 mm (W) x 66.85 mm (D) x 43.3 mm (H) : 2 years from production date
LM
RM
TM
Printable area
BM
Figure 1-4. Printable area for envelopes
(Rib area)
Figure 1-5. Black ink cartridge
PRODUCT DESCRIPTION
SPECIFICATIONS
(Rib area)
10
EPSON Stylus C60
Revision A
1.2.6.2 Color ink cartridge
Type Color Print capacity Ink life Storage temperature: Storage -20 oC to 40 oC (within a month at 40 oC) Packing -30 oC to 40 oC (within a month at 40 oC) Transit -30 oC to 60 oC (within 120 hours at 60 oC and within a month at 40 oC) Dimension : 43.2 mm (W) x 66.85 mm (D) x 43.3 mm (H) : Exclusive cartridge : Magenta, Cyan, Yellow : 300 pages / A4 (360 dpi, 5% duty each color) : 2 years from production date
1.2.7 Electric Specification
[120V Version] Rated voltage Input voltage range Rated frequency range Input frequency range Rated current Power consumption : AC120V : AC99132V : 50 60Hz : 49.5 60.5Hz : 0.4A : Approx. 17W (ISO10561 Letter Pattern) Approx. 4W in standby mode Energy Star compliant : 100M ohms min. (between AC line and chassis, DC 500V) : AC 1000V rms. 1 minute or AC 1200V rms. 1 second (between AC line and chassis)
Insulation resistance Dielectric strength
(Rib area)
[220 240V Version] Rated voltage Input voltage range Rated frequency range Input frequency range Rated current Power consumption : AC220V240V : AC198264V : 5060Hz : 49.560.5Hz : 0.2 A : Approx. 17W (ISO10561 Letter Pattern) Approx. 4.5W in standby mode Energy Star compliant : 100M ohms min. (between AC line and chassis, DC 500V) : AC 1500V rms. 1 minute (between AC line and chassis)
(Rib area)
Figure 1-6. Color ink cartridge
Note 1: Ink cartridge can not re-fill, only ink cartridge is prepared for article of consumption. Note 2: Do not use the ink cartridge which was passed away the ink life. Note 3: Ink will be frozen under -18 ~ -21 oC environment, however it will be usable after placing it more than 3 hours at room temperature.
Insulation resistance Dielectric strength
PRODUCT DESCRIPTION
SPECIFICATIONS
11
EPSON Stylus C60
Revision A
1.2.8 Environmental Condition
Temperature Operating Non-operating Humidity Operating Non-operating Resistance to shock Operating Non-operating Resistance to vibration Operating Non-operating : 0.15G : 0.50G (with shipment container)
90 80 70 60
1.2.9 Reliability
Total print volume : 50,000 pages (A4, Letter) or 5 years although less than 50,000 pages printing : 3 billion dots/nozzle
: 10 to 35°C (Refer to Figure 1-7) : -20 to 60°C (with shipment container) 1 month at 40°C and 120 hours at 60°C Print head life
1.2.10 Safety Approvals
[120V Version] Safety standards EMI [220240V Version] Safety standards: EMI : EN60950 (VDE) : EN55022 (CISPR Pub.22) Class B AS/NZS 3548 Class B : UL1950 CSA22.2 No.950 : FCC part15 subpart B Class B CSA C108.8 Class B
: 20 to 80% RH (without condensation / Refer to Figure 1-7) : 5 to 85% RH (without condensation / with shipment container)
: 1G, within 1 ms : 2G, within 2 ms (with shipment container)
1.2.11 Acoustic Noise
Level : Approx. 45dB(A) (According to ISO 7779)
1.2.12 CE Marking
[220240V 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 EC801-4
Humidity (%)
50 40 30 20
10
20
27 30
35
40
Temperature (°C)
Figure 1-7. Temperature/Humidity range
PRODUCT DESCRIPTION
SPECIFICATIONS
12
EPSON Stylus C60
Revision A
1.3 INTERFACE
The EPSON Stylus C60 provides USB and parallel interface as standard. DATA -STROBE tsetup BUSY tready -ACKNLG treply tack tnbusy tbusy tstb tnext
data byte n data byte n+1
thold
1.3.1 Parallel Interface (Forward Channel)
Transmission mode Synchronization Handshaking Signal level : 8 bit parallel, IEEE-1284 compatibility mode : By STROBE pulse : BY BUSY and ACKNLG signal : TTL compatible level
Adaptable connector : 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 No ink cartridge Maintenance request PE signal is at high level during paper-out error.
Figure 1-8. Data transmission timing Table 1-9. Data transmission timing
Parameter tsetup thold tstb tready tbusy tt-out* tt-in** treply tack tnbusy tnext Minimum 500ns 500ns 500ns 0 0 500ns 0 0 Maximum 500ns 120ns 200ns 10us -
* Rise and fall time of every output signals ** Rise and fall time of every input signals *** Typical timing of tack is shown on the following page.
PRODUCT DESCRIPTION
INTERFACE
13
EPSON Stylus C60
Revision A
Table 1-10. Typical time of tack
Parallel I/F mode High Speed Normal Speed Typical time of tack 0.5us 2us 1 2 3 4 5 VOH = 2.4V VOL = 0.4V 6 7 8 9 10 IIH IIL CI 0.32mA 12mA 50pF VIH = 2.0V VIL = 0.8V 11 12 13 14 Pin No.
Table 1-12. Connector pin assignment and signals
Signal name Return GND pin 19 20 21 22 23 24 25 26 27 28 29 28 28 30 In/Out Functional description The strobe pulse. Read-in of data is performed at the falling edge of this pulse.
-STROBE DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 -ACKNLG BUSY PE SLCT -AFXT
In In In In In In In In In Out Out Out Out In
Table 1-11. Signal level: TTL compatible (IEEE-1284 level 1 device)
Parameter VOH* VOL* IOH* IOL* CO VIH VIL Minimum -0.5V 0.8V Maximum 5.5V 0.32mA 12mA 50pF 2.0V Condition
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.
This signal is a negative pulse indicating that the printer can accept data again. 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. The falling edge of a negative pulse or a low signal on this line causes the printer to initialize. Minimum 50us pulse is necessary. A low signal indicates printer error condition. Not used. Pulled up to +5V via 3.9 K ohm resistor.
*
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.
31
-INIT
30
In
32 36 18
-ERROR -SLIN Logic H
29 30 -
Out In Out
PRODUCT DESCRIPTION
INTERFACE
14
EPSON Stylus C60 Table 1-12. Connector pin assignment and signals (continued)
Pin No. 35 17 16,33, 19-30 15,34 Signal name +5V Chassis GND GND NC Return GND pin In/Out Out Functional description Pulled up to +5V via 3.3K ohm resistor. Chassis GND. Signal GND. Not connected.
Revision A
NOTE: In/Out refers to the direction of signal flow from the printer's point of view.
PRODUCT DESCRIPTION
INTERFACE
15
EPSON Stylus C60
Revision A Table 1-13. Connector pin assignment and signals (continued)
Pin No. 32 36 18 35 17 16,33, 19-30 15,34 In In In In In In In In In Out Out Out Out In In 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. 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. These signals are used to transfer the 1284 extensibility request values to the printer. Host clock signal. Signal name -DataAvail / DataBit-0,4 1284-Active Logic-H +5V Chassis GND GND NC Return GND pin 29 30 In/Out Out In Out Out Functional description 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 3.3K ohm resistor. Chassis GND. Signal GND. Not connected.
1.3.2 Parallel Interface (Reserve Channel)
Transmission mode Adaptable connector Synchronization Handshaking Data trans. timing Signal level : IEEE-1284 nibble mode : See forward channel : Refer to the IEEE-1284 specification : Refer to the IEEE-1284 specification : Refer to the IEEE-1284 specification : IEEE-1284 level 1 device See forward channel.
Table 1-13. Connector pin assignment and signals
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 31 Signal name HostClk DATA0 DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 PtrClk PtrBusy / DataBit-3,7 AckDataReq / DataBit-2,6 Xflag / DataBit-1,5 HostBusy -INIT Return GND pin 19 20 21 22 23 24 25 26 27 28 29 28 28 30 30 In/Out Functional description
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 means, 00H 04H : Request nibble mode reverse channel transfer. : Request Device ID; Return data using nibble mode reverse channel transfer.
PRODUCT DESCRIPTION
INTERFACE
16
EPSON Stylus C60
Device ID: The printer sends the following device ID string when it is requested. When IEEE1284.4 is enabled, [00H] [4EH] MFG : EPSON; CMD : ESCPL2, BDC, D4; MDL : Stylus[SP]C60; CLS : PRINTER; DES : EPSON[SP]Stylus[SP]C60; When IEEE1284.4 is disabled, [00H] [4BH] MFG : EPSON; CMD : ESCPL2, BDC; MDL : Stylus[SP]C60; CLS : PRINTER; DES : EPSON[SP]Stylus[SP]C60; Note 1: [00H] denotes a hexadecimal value of zero. Note2: MDL value depends on the EEPROM setting. Note3: CMD value depends on the IEEE1284.4 setting.
Revision A
1.3.3 USB Interface
Standard : Based on "Universal Serial Bus Specifications Rev. 1.1" "Universal Serial Bus Device Class Definition for Printing Devices Version 1.1" : 12Mbps (Full Speed Device) : NRZI : USB Series B : 2 meters
Bit rate Data encoding Adaptable connector Recommended cable length
Table 1-14. Connector pin assignment and signals
Pin No. 1 2 3 4 Signal name VCC -Data +Data Ground I/O Bi-D Bi-D Function description Cable power. Max. power consumption is 2mA. Data Data, pull up to +3.3V via 1.5K ohm resistor. Cable ground
Pin #2
Pin #1
Pin #3
Pin #4
Figure 1-9. USB pin assignment
PRODUCT DESCRIPTION
INTERFACE
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EPSON Stylus C60
Revision A
On An initial state is IEEE1284.4 communication and data that received it by the time it is able to take synchronization by magic string (1284.4 synchronous commands) is discarded. Off An initial state is compatible interface and never starts IEEE1284.4 communication even if magic strings (1284.4 synchronous commands) are received.
1.3.4 Prevention Hosts of 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 of time-out, the printer receives data very slowly, several bytes per minute, even if the printer is in busy state. This slowdown is started when the remaining input buffer becomes several hundreds of bytes, and the printer is finally in the busy state continuously when the input buffer is full. USB and IEEE1284.4 on the parallel interface do not require this function.
1.3.5 Interface Selection
The printer has two built-in interfaces: the USB and parallel 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 which receives data first is selected. When the host stops data transfer and the printer is in the stand-by state for seconds, the printer is returned to the idle state. As long as the host sends data or the printer interface is in busy state, the selected interface is let as it is. Interface state and interface selection When the parallel interface is not selected, the interface gets into the busy state. When the printer is initialized or returned to the idle state, the parallel interface gets into the ready state. Caution that the interrupt signal such as the -INIT signal on the parallel interface is not effective while that interface is not selected.
1.3.6 IEEE1284.4 Protocol
The packet protocol described by IEEE1284.4 standard 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 provides 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 operates over IEEE1284. Automatic selection An initial state is compatible interface and starts IEEE1284.4 communication when magic strings (1284.4 synchronous commands) are received.
PRODUCT DESCRIPTION
INTERFACE
18
EPSON Stylus C60
Revision A
1.4 PANEL CONTROL
The control panel of the EPSON Stylus C60 is composed of the 2 non-lock type pushbuttons, 1 lock-type push-button, and 2 LEDs, as shown figure below.
1.4.1 Indicators (LEDs)
(1) Power Lights when the operating switch is "ON" and AC power is supplied. (2) Error Lights or blinks when some error has occurred on the printer.
Power
Error reset
(1)
(2) Ink cartridge exchange
Figure 1-10. Control panel
PRODUCT DESCRIPTION
PANEL CONTROL
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EPSON Stylus C60
Revision A
1.4.2 Panel Functions
Table 1-15. Panel functions
Switch Function · Loads or Ejects the paper (Pushing within 3seconds). · Starts the cleaning of head (Pushing for 3seconds). · When carriage is on the ink cartridge change position, return carriage from ink cartridge change position. · Starts the ink cartridge change sequence. *
1.4.3 Printer Condition and Panel Status
Table 1-17. Printer condition and LED status
Indicators Printer status Power Power ON condition Ink sequence Ink Cartridge change mode Data processing Paper Out Paper jam condition Ink end (Black) *1 *1 *1 On Blink Blink Blink *1 Error On On On -> Blink Blink-> Blink On -> Blink2 Blink-> Blink2 On -> On On 10 6 5 9 4 3 8 8 8 8 8 7 Priority
Error reset SW
Ink cartridge exchange SW
* This function is not available in printing status.
Table 1-16. Panel functions with power on
Switch Error reset SW Ink cartridge exchange SW · Start status printings. · Selects IEEE 1284.4 mode for parallel I/F. *1 Function
Ink level low (Black) Ink end (Color) Ink level low (Color) Ink end (Black and Color) No Ink Cartridge (Black and Color) *1
*1 Not described in the user's manual.
Maintenance request (Ink Overflow Counter error) *1 Fatal error Special setting *1
Alt Blink Off Blink2
Alt Blink On Blink2
2 1 -
" - " : Indicator status don't change. " A -> B " :A is a indicator condition when carriage is in Home Position. B is a indicator condition in Ink exchange sequence. *1: See 1.4.4 "Error Status" for detailed information. Blink : On 0.5sec + Off 0.5sec Blink2 : On 0.2sec + Off 0.2sec + On 0.2sec + Off 0.4sec
PRODUCT DESCRIPTION
PANEL CONTROL
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EPSON Stylus C60
Revision A
1.4.4 Error Status
Ink end When the printer runs out the most amount of the ink of any one color, it indicates ink-low and keeps printing. When the printer runs out the whole ink of any color, it stops printing and indicates ink end error. User is then requested to install a new ink-cartridge in this state. Paper out error When the printer fails to load a sheet, it goes into a paper out error. Paper jam error When the printer fails to eject a sheet, it goes into a paper jam error. No ink cartridge When the printer detects that ink cartridge comes off, or failed to read or write CSIC data, it goes into this error mode. Maintenance request When the total amount of ink wasted through cleanings and flushing reaches to the limit, printer indicates this error and stops. In such a case, the absorber in the printer enclosure needs to be replaced with new one by a service person. Fatal errors Carriage control error.
1.4.5 Printer Initialization
There are four kinds of initialization method, and the 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, the following actions are performed. (a) Initializes printer mechanism (b) Clears input data buffer (c) Clears print buffer (d) Sets default values Operator 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, the following actions are performed. (a) Cap the printer head (b) Eject a paper (c) Clears input data buffer (d) Clears print buffer (e) Sets default values Software initialization The ESC@ command also initialize the printer. When printer is initialized, the following actions are performed. (a) Clears print buffer (b) Sets default values Power-on initialization except I/F The printer recognized the IEEE 1284.4 "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 except I/F
2.
3.
4.
PRODUCT DESCRIPTION
PANEL CONTROL
21
CHAPTER
2
OPERATING PRINCIPLES
EPSON Stylus C60
Revision A
2.1 Overview
This section describes the operating principles of the Printer mechanism and electrical circuit boards. Like the previous printers (Stylus COLOR 480/580), the Stylus C60 has only the following two circuit boards and does not have the control panel board.*1
Star wheel roller
Paper eject roller PF motor PF roller CR timing belt
Main board Power supply board
*1
: C418 MAIN : C417 PSB/PSE
: Due to this, the Stylus COLOR 480/580 does not have switches (Power, Error reset, Ink cartridge replacement) and LEDs. However, the Stylus C60 has them on C418 Main board instead of the control panel board.
HP/PE Sensor CR unit LD Roller Pad holder
2.1.1 Printer Mechanism
The Printer mechanism for the Stylus C60 is newly designed. But, the basic component of the Printer mechanism is almost the same as the previous printer (Stylus COLOR 480/580). This printer consists of Printhead, Carriage mechanism, Paper loading mechanism, Paper feeding mechanism, Ink system (Pump mechanism including newly designed Carriage lock mechanism, Capping mechanism including newly designed Wiper mechanism). Like the previous printers (Stylus COLOR 480/580), the Stylus C60 is equipped with two stepping motors; one for the Paper loading/feeding mechanism and the Pump mechanism with the CR lock mechanism, and one for the CR mechanism. The ASF unit for the Paper loading mechanism uses rear entry front eject system. And, single LD roller in Holder shaft unit loads a paper to the Printer mechanism. The Cap unit which adopts the valveless mechanism is newly designed on this printer as follows. No porous pad in cap Cap unit with wiper
Change lever
(Paper return plate)
LD pad Compression spring
Clutch mechanism
Pump unit
CR motor Cap unit
Figure 2-1. Printer mechanism block diagram
Operating Principles
Overview
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EPSON Stylus C60
Revision A
PZT PZT is an abbreviation of Piezo Electric Element. Based on the drive waveform generated on the Main board, the PZT selected by the nozzle selector IC on the Printhead pushes the top of the ink cavity, which has ink stored, to eject the ink from each nozzle on the nozzle plate. Electric poles for CSIC This electric poles connects the CSIC chip mounted on the ink cartridge. By using this poles, current ink consumption amount data is red out from the CSIC chip. And, the latest ink consumption amount data is written into the CSIC chip. Nozzle Plate The plate with nozzle holes on the Printhead surface is called Nozzle Plate. Filter When the ink cartridge is installed, if any dirt or dust around the cartridge needle is absorbed into the Printhead, there is a great possibility of causing nozzle clog and disturbance of ink flow, and alignment failure and dot missing finally. To prevent this problem, a filter is set under the cartridge needle. Ink Cavity The ink absorbed from the ink cartridge goes through the filter and then is stored temporarily in this tank called "ink cavity" until PZT is driven.
CSIC chip
Nozzle selector board
2.1.2 Printhead
The Printhead uses the same U-CHIPS type as the previous printer (Stylus COLOR 680), and makes it possible to perform multiple shot printing and variable dot printing. The Printhead nozzle configuration is as follows. Nozzle layout Black: 48 nozzles x 3 staggered (nozzle pitch of row: 1/360 inch) Color: 48 nozzles x 1 row/col. (nozzle pitch of row: 1/120 inch) The nozzle layout when viewed from the back surface of the Printhead is shown below.
0.0706(1/360inch)
Figure 2-2. Nozzle layout
The Printhead has the electric poles to store the ink consumption amount data into the CSIC chip mounted on the ink cartridge. By storing the ink consumption amount data, this printer can detect the ink consumption status, such as ink low/end condition. The basic operating principles of the Printhead, which plays a major role in printing, are the same as the previous printer (Stylus COLOR 680); on-demand method which uses PZT (Piezo Electric Element). In order to uniform the ejected ink amount, the Printhead has its own Head ID (11 digits code for this Printhead) which adjusts PZT voltage drive features. So, you are required to store the Head ID pasted on the Printhead into the EEPROM by using the Adjustment program when replacing the Printhead, the Main board, the Printer mechanism with new one. (Note : there are no resistor arrays to determine the Head ID on the Main board.) And then, based on the stored Head ID into the EEPROM, the Main board generates appropriate PZT drive voltage. Following explains the basic components for the Printhead.
0.0706(1/360inch)
0.2117(3/360inch)
Ink cartridge Needle
Elect ric poles for CSIC
* Head ID for the Printhead is stored to the EEPROM.
Nozzle plate Filter PZT Cavity
Figure 2-3. Printhead sectional drawing
Operating Principles
Overview
24
EPSON Stylus C60
Revision A
2.1.2.1 Printing Process
This section explains the process which the Printheads of On-Demand inkjet printers eject ink from each nozzle. 1. Normal state : When the printing signal is not output from C418 Main board, or the PZT drive voltage is not applied, the PZT does not change the shape. Therefore, the PZT does not push the ink cavity. The ink pressure inside the ink cavity is kept normal. (Refer to Figure 2-4 : Normal state) Ejecting state : When the print signal is output from the C418 Main board, the nozzle selector IC located on the Printhead latches the data once by 1-byte unit. Based on the drive waveform (common voltage) generated on the Main board, the PZT selected by the nozzle selector IC pushes the top of the ink cavity. By this operation, the ink stored in the ink cavity is ejected from nozzles. (Refer to Figure 2-4 : Ejecting state) Ink path PZT Ink cavity
2.1.2.2 Printing Method
For printing dot system, the Stylus C60 has the following two kinds of printing mode. Multiple shot printing Variable dot printing The above two printing modes are automatically selected depending on the media and the resolution setting of the printer driver. The following explains each printing mode. Multiple shot printing This printing mode is developed to improve the print quality on plain paper or transparencies in low resolution. The multiple shot printing mode uses normal dot, and the number of dot shot varies from 1 shot to maximum 3 shots depending on the print data to enable to output sharp image even in a low resolution. Variable dot printing This printing mode is developed to improve the print quality on exclusive paper. This mode is basically the same as variable dot printing mode used on other products; micro dot, middle dot and large dot compose this mode. The printing dot size varies according to the print data and this mode enables to output even sharper image on exclusive paper.
2.
Normal state
Nozzle
Nozzle plate PZT drive voltage
Ejecting state
Figure 2-4. Printhead printing process
Operating Principles
Overview
25
EPSON Stylus C60
Revision A
The drive of the CR motor is transmitted to the CR unit via the CR timing belt. And, the CR home position is detected with the HP/PE sensor. This sensor is available as the CR home position sensor while the CR motor operates in each sequence. (The function of this sensor varies depending on the running condition of the motors. It is available as the PE sensor when the PF motor operates in each sequence.) When the detection plate molded on the CR unit pushes down the HP detection lever and the CR home position is detected with HP/PE sensor, HIGH signal is output to the CPU.
.
2.1.3 Carriage Mechanism
The Carriage mechanism consists of CR motor, Carriage unit (including the Printhead and CR guide shaft), CR timing belt and CR home position sensor (HP/PE sensor) etc. Following figure shows you each component for the CR mechanism.
HP/PE sensor HP detection lever CR motor
HP detection lever
Right side view CR HP detection plate HP detection lever
CR unit
CR guide shaft
CR timing belt CR HP detection plate Low signal High signal
Figure 2-5. Carriage mechanism (Top view)
The following stepping motor controls the CR mechanism on this printer.
Table 2-1. Carriage motor specification
Items Type Drive Voltage Coil Resistance Inductance Drive Method Driver IC Specifications 4-Phase/ 200-Poles HB Stepping motor +42 V +/ - 5% (DRV IC voltage) 7.8 +/ - 10% (per phase at 25 degrees) 14 mH +/ - 20% (1KH 1Vrms) Bi-Polar drive LB1946
Figure 2-6. CR home position detection
Moreover, like the previous printers (Stylus COLOR 480/580), this printer does not also have the PG adjustment mechanism. Therefore, the CR guide shaft is assembled with the defined PG value (1.7 ± 0.2 mm). For your reference, in case that the CR home position is not detected with the HP/PE sensor although the CR unit moves correctly, the printer indicates the "Fatal error". And also, in case that the CR unit cannot move outside the home position and the CR home position is not detected with the HP/PE sensor, the printer indicates the "Paper jam error".
Operating Principles
Overview
26
EPSON Stylus C60
Revision A
The drive of the PF motor is transmitted to the LD roller shaft and the PF roller through gears for the Paper loading/feeding mechanism. The Paper loading mechanism plays a role in loading a paper from the ASF unit to the PF roller. And also, the Paper feeding mechanism plays a role in feeding a paper loaded from the ASF unit. The functions of the Paper loading/feeding mechanism varies depending on the rotational direction of the PF motor as the table below.
2.1.4 Paper Loading/Feeding Mechanism
The following stepping motor controls the Paper loading/feeding mechanism on this printer.
Table 2-2. PF motor specifications
Item Motor type Drive voltage Coil Resistance Inductance Driving method Driver IC Description 4-Phase/ 96-Poles PM Stepping motor +42 V +/ - 5% (DRV IC voltage) 6 +/ - 10% (per phase at 25 degrees) 9.5 mH +/ - 20% (1kH 1Vrms)
Table 2-3. ASF unit function & PF motor rotational direction
Directions *2 Clockwise Counterclockwise
*2
Corresponding functions · Release the Change lever from the Clutch mechanism · Pick up and feed a paper · Set the Change lever on the Clutch mechanism
Bi-Polar drive LB1946
: The PF motor rotation direction = seen from the left side of the printer.
Following shows you the transmission path of the PF motor drive to the LD roller, the PF roller and the Paper eject roller. (The numbers in the following figure show you the order of transmission path.)
Right side view HP/PE sensor
Left side view
PF roller Spur gear 60 (PF roller) Spur gear 60 (Paper eject roller) Spur gear 10,8 (PF roller)
Spur gear 35.2
No paper
Detect a paper
6 5 1 4 2
1
1
Paper Combination gear 16.32 Spur gear 25.6
Paper eject roller PF motor PF motor pinion gear
3 Combination gear 18.28 Spur gear 27.2
PE detection lever Low signal High signal
Note: The Clutch gear is molded on the backside of the Spur gear 35.2 such as Combination gear.
Figure 2-7. Paper loading/feeding mechanism
Operating Principles
Overview
27
EPSON Stylus C60
For your reference, the top or the end of a paper is usually detected with the HP/PE sensor. In case that the HP/PE sensor cannot detect the top of a paper in the paper loading sequence, the printer indicates the "Paper out error". If the HP/PE sensor cannot detect the end of a paper in the paper feeding sequence, the printer indicates the "Paper jam error". As for the details, refer to Chapter 3 "Troubleshooting".
Revision A
2.1.4.1 Paper Loading Mechanism (ASF unit)
The Paper loading mechanism consists of the Change lever in the Pump unit, the Holder shaft unit (including the Clutch mechanism) and the ASF unit. The Change lever and the Clutch mechanism play a major role in the Paper loading mechanism as follows. 1. ASF home position detection function The ASF unit on this printer does not have the ASF home position sensor. Instead of the ASF home position sensor, the Change lever and the Clutch mechanism is used to detect the ASF home position. When the Change lever is set on the Clutch mechanism with the counterclockwise rotation of the PF motor pinion gear, the ASF home position is detected by this lever for the paper loading operation. In this time, the printer cannot load a paper from ASF unit because the drive of the PF motor is not transmitted to the LD roller shaft. Paper loading function When the Change lever is released from the Clutch mechanism with the clockwise rotation of the PF motor pinion gear, the ASF home position detection function is changed over to the paper loading function. Therefore, the printer can load a paper from ASF unit because the drive of the PF motor is transmitted to LD roller shaft.
2.
On this printer, the Paper return plate is built in ASF unit instead of the Paper return lever. The LD pad is stacked on the Paper return plate, and it works with the tension force of the Torsion spring 29.1 mounted on the ASF frame. When an arc portion of the LD roller pushes down this plate into the ASF frame during the paper loading sequence, a paper is loaded from the ASF unit. A cutout portion of the LD roller releases this lever and this plate returns papers to the stand-by position for next paper loading operation. Following figures (Refer to Figure 2-8/Figure 2-9) show you the ASF paper loading sequence and the operation of each mechanism.
Operating Principles
Overview
28
EPSON Stylus C60
Revision A
Step 1 (ASF Home position) Hopper & Paper return plate condition LD roller shaft LD roller
Step 2 Hopper & Paper return plate condition
When the PF motor pinion ASF hopper release lever gear rotates CW direction Paper return plate (Right side view), the Hopper Change lever pushes Compression down the Clutch lever as Torsion spring 29.1 spring 2.50 right figure and the Clutch ASF frame lock tooth is disengaged from the Clutch gear. As the result, the LD roller Gear rotation direction (Right side view) shaft dose not rotate at all Spur gear 10.8 because the drive of the Clutch lock tooth Change lever (PF roller) PF motor is not transmitted. In this time, the ASF hopper is also pushed down by the ASF hopper release lever on the LD roller shaft, and the Paper return plate is Clutch lever set to avoid that papers are Clutch slipped down from the Clutch gear paper set position. This position is the ASF home position.
PF motor pinion gear (CW) Spur gear 10.8 (PF roller) (CCW) Combination gear 18.28 (CW) Spur gear 27.2 (CCW) Spur gear 25.6 (CW) Change lever (CW) Combination gear 16.32 (CCW) Spur gear 35.2 (CW) * Above transmission pass = seen from the right side of the printer
Gear rotation direction (Right side view) To Front side Clutch lock tooth
Tension spring 0.143 Clutch gear PF motor pinion gear (CCW) Spur gear 10.8 (PF roller) (CW) Combination gear 18.28 (CCW) Spur gear 27.2 (CW) Spur gear 25.6 (CCW) Change lever (CCW) Combination gear 16.32 (CW) Spur gear 35.2 (CCW) * Above transmission pass = seen from the right side of the print
When a paper is loaded from the ASF unit, the Change lever moves to the front side of the printer with the CCW rotation (right side view) of the PF motor pinion gear and releases the Clutch lever. As the result, the Clutch turns back to the engagement position by the tension force of the Tension spring 0.143. And, the Clutch gear is engaged with the Clutch lock tooth to transmit the drive of the PF motor as left figure. In this time, the Change lever is locked instantaneously by the protrusion on the backside of the CR unit to change over from the ASF home position detection function to the paper loading function surely.
Figure 2-8. ASF paper loading sequence (Step 1, 2)
Operating Principles
Overview
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EPSON Stylus C60
Revision A
Step 3 Hopper & Paper return plate condition
1
Step 4 Hopper & Paper return plate condition
1
The PF motor pinion gear rotates CW direction (right side view), and the drive of the PF motor is transmitted to the LD roller shaft through the Clutch lock tooth and the Clutch gear. After the LD roller pushes down the Paper return plate into the ASF frame, the ASF hopper is released by the tension force of the Compression spring 2.50. And, a paper is picked up with the frictional force between the LD roller and the Pad hopper.
ASF hopper release lever
3 2
Compression spring 2.50 ASF frame
Paper return plate
3 2
Gear rotation direction (Right side view) ASF hopper release lever
Gear rotation direction (Right side view)
LD roller shaft
PF motor pinion gear (CW) Spur gear 10.8 (PF roller) (CCW) Combination gear 18.28 (CW) Spur gear 27.2 (CCW) Spur gear 25.6 (CW) Change lever (CW) Combination gear 16.32 (CCW) Spur gear 35.2 (CW) * Above transmission pass = seen from the right side of the printer
PF motor pinion gear (CW) Spur gear 10.8 (PF roller) (CCW) Combination gear 18.28 (CW) Spur gear 27.2 (CCW) Spur gear 25.6 (CW) Change lever (CW) Combination gear 16.32 (CCW) Spur gear 35.2 (CW) * Above transmission pass = seen from the right side of the printer
While the LD roller rotates CW direction (right side view) continuously, the top of a paper is loaded to the PF roller. In this rotation, the ASF hopper returns to the open position and the Paper return plate is released from the LD roller. In this time, this plate returns papers to the stand-by position in ASF unit for next paper loading operation. Then, when the rolling LD roller & the Clutch come at the above "Step1" position, the Clutch lever is locked with the Change lever again. In this time, the drive of the PF motor is interrupted and the drive is transmitted only to the PF roller side for the paper feeding sequence.
Figure 2-9. ASF paper loading sequence (Step 3, 4)
Operating Principles
Overview
30
EPSON Stylus C60
Revision A
Following figure shows you the transmission path for the PF roller & the Paper guide roller and the Paper eject roller & the Star wheel. The top of a paper is loaded to the PF roller from the ASF unit in the paper loading sequence. And then, when the PF motor pinion gear rotates CCW direction (left side view), a paper is fed by the PF roller & the Paper guide roller and the Paper eject roller & the Star wheel in the printing operation & the paper feed sequence.
2.1.4.2 Paper Feeding Mechanism
The Paper feeding mechanism consists of PF motor, PF roller, Paper eject roller, Paper end sensor (HP/PE sensor) etc. The Paper feeding mechanism feeds a paper loaded from ASF unit by using pairs of rollers. 1. One pair is the PF roller and the Paper guide roller which is assembled in the Paper guide upper/left. The drive of the PF motor is transmitted to the Paper guide roller through the PF roller. Another pair is the Paper eject roller and the Star wheel which is assembled on the Front frame. The drive of the PF motor is transmitted to the Star wheel through the Paper eject roller.
Left side view Spur gear 60 (PF roller) Spur gear 60 (Paper eject roller)
2.
PF roller
Paper guide roller Star wheel
PF motor Paper eject roller PF motor pinion gear
Transmission path (Left side view) : PF motor pinion gear (CCW) Spur gear 60 (PF roller /Paper eject roller) (CW)
Figure 2-10. Paper feeding mechanism
Operating Principles
Overview
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EPSON Stylus C60
Revision A
2.1.5 Ink System Mechanism
The Ink system mechanism consists of Pump mechanism with Carriage lock mechanism and Capping mechanism with Wiper mechanism. Following table lists the function for each mechanism.
2.1.5.1 Capping Mechanism
The Capping mechanism covers the Printhead with the Cap to prevent the nozzle from increasing viscosity when the printer is in stand-by state or when the printer is off. Unlike the previous printers (Stylus COLOR 480/580), the Cap unit is newly designed for this printer as follows. 1. Non porous pad in Cap Due to this, the cap is newly designed as follows.
Table 2-4. Function for each mechanism
Mechanism Capping mechanism * Wiper mechanism Pump mechanism Carriage lock mechanism Function This is to cover the surface of the Printhead with the cap in order to prevent the nozzle from increasing viscosity. This is to remove the foreign material and unnecessary ink on the nozzle plate of the Printhead. This is to eject the ink from the ink cartridge, the ink cavity and the cap to the Waste drain ink pad. This is to lock the CR unit with the Change lever while the CR unit is at the home position.
Ink eject hole
For Stylus C60
*
Like the previous printers (Stylus COLOR 480/580), this printer adopts the valveless cap system. The air valve system used for the previous printer (Stylus COLOR 740) have two functions by the CR position in the capping condition as follows. 1) Valve closing condition (CL position) By closing the air valve, the ink is forcibly absorbed from the ink cartridge or the ink cavity by the Pump unit and is ejected to the Waste drain ink pad while the CR unit is in the CL position. 2) Valve opening condition (Ink absorption position) By opening the Air valve, the negative pressure is decreased and only the ink inside the Cap is ejected while the CR unit is in the further right side than the CL position. (the ink is not absorbed from the ink cartridge or the ink cavity.) The following shows you the CR position for each condition easily.
Printing area CR home position CL position (valve closing condition) Ink absorption position (valve opening condition)
Ink eject hole
Porous pad
For Stylus COLOR 480/580
Figure 2-11. Cap mechanism
The Cap unit used for the previous printers (Stylus COLOR 480/580) has the porous pad to keep the moisture in the Cap *1 and prevent that the air bubbles occur in CL sequence*2. The following points are modified to get the same effects on new Cap unit without the porous pad. *1 : The diameter of the ink eject hole is smaller than that of Stylus COLOR 480 /580. *2 : The cap is modified so that the ink flows with air bubbles to the ink eject hole in the ink absorption sequence more easily.
But, on the valveless cap system, the above 2) operation is done outside the capping position. The CR unit moves outside the CR home position and the pump absorbs the ink inside the Cap.
Operating Principles
Overview
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EPSON Stylus C60
2. Wiper with the Cap unit The wiping operation is controlled by the CR unit movement. This operation is usually performed with every CL sequence which is to absorb the ink from the ink cartridge, the ink cavity by the Pump unit. Following figure shows you the mechanism for the wiping operation. When the CR unit is in the home position, the hook of the Slider lock lever is not latched to the dent of the Cap frame. In this time, the protrusion of the Cap slider does not reach the rightmost position of the Cap frame.
Not latched
Revision A
Step 1
Protrusion
Step 2
The CR unit moves to the wiper setting position on the rightmost position of the Cap frame with keeping the cap covered. In this time, the hook of the Slider lock lever is latched to the dent of the Cap frame.
Latched
Capping position (CR home position)
Wiper setting position
When the CR unit moves to the left side from the wiper setting position, the Cap unit is pulled back by the tension force of the E