Epson stylus c80 schematic

®
SERVICE MANUAL
Color Inkjet Printer

EPSON Stylus Color C70/C80

SEIJ01-004
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,
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
greatly appreciate being informed of them.
The contents of this manual are subject to change without notice.
All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would
greatly appreciate being informed of them.
The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences
thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their
respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 2000 SEIKO EPSON CORPORATION.
Imaging & Information Product Division TPCS Quality Assurance Center TPCS Department
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.
WARNING 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.
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. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE WARRANTY OFFERED BY EPSON.
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.
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 I R E D
C A U T I O N
C H E C K
P O I N T
W A R N I N G
Indicates an operating or maintenance procedure, practice or condition that is necessary to keep the product’s quality.
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.
Indicates 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.
Revision Status
Revision Issued Date Description
A July 31, 2001 First Release
CONTENTS
Chapter 1 PRODUCT DESCRIPTION
1.1 FEATURES ....................................................................................................... 10
1.2 SPECIFICATIONS .......................................................................................... 11
1.2.1 Physical Specification ................................................................................ 11
1.2.2 Printing Specification ................................................................................ 11
1.2.3 Paper Feeding ............................................................................................ 13
1.2.4 Input Data Buffer ....................................................................................... 13
1.2.5 Electric Specification ................................................................................. 13
1.2.6 Environmental Condition ........................................................................... 14
1.2.7 Reliability .................................................................................................. 14
1.2.8 Safety Approvals ....................................................................................... 14
1.2.9 Acoustic Noise ........................................................................................... 14
1.2.10 CE Marking ............................................................................................. 14
1.3 INTERFACE ..................................................................................................... 15
1.3.1 Parallel Interface ........................................................................................ 15
1.3.2 Parallel Interface (Reserve Channel) ......................................................... 17
1.3.3 USB Interface ............................................................................................ 18
1.3.4 Prevention Hosts of Data Transfer Time-out ............................................. 19
1.3.5 Interface Selection ..................................................................................... 19
1.3.6 IEEE1284.4 Protocol ................................................................................. 19
1.3.7 Printer Language and Emulation ............................................................... 20
1.3.7.1 Control codes ..................................................................................... 20
1.3.7.2 EPSON D4 control channel commands ............................................ 21
1.4 OPERATOR CONTROLS .............................................................................. 24
1.4.1 Operate Switch ........................................................................................... 24
1.4.2 Control Panel ............................................................................................. 24
1.4.2.1 Switches ............................................................................................. 24
1.4.2.2 Indicators ........................................................................................... 24
1.4.3 Panel Functions .......................................................................................... 25
1.4.4 Printer Condition and Panel Status ............................................................ 26
1.4.5 Printer setting mode (Stylus COLOR C80 only) ....................................... 27
1.4.5.1 Default setting mode ......................................................................... 27
1.4.5.2 Print head alignment mode ................................................................ 28
1.4.6 Printer Initialization ................................................................................... 28
1.4.7 Errors ......................................................................................................... 29
1.5 PAPER ............................................................................................................... 30
1.5.1 Paper Handling .......................................................................................... 30
1.5.2 Paper Specification .................................................................................... 30
1.5.2.1 Cut Sheet ........................................................................................... 30
1.5.2.2 Envelope ............................................................................................ 30
1.5.2.3 Index Card ......................................................................................... 30
1.5.2.4 EPSON special media ....................................................................... 31
1.5.3 Printing Area .............................................................................................. 32
1.5.3.1 Cut Sheet ........................................................................................... 32
1.5.3.2 Envelopes .......................................................................................... 33
1.6 INK CARTRIDGE ........................................................................................... 34
1.6.1 Black Ink Cartridge ................................................................................... 34
1.6.2 Color Ink Cartridge .................................................................................... 34
Chapter 2 Operating Principles
2.1 Overview ............................................................................................................ 36
2.1.1 Printer Mechanism ..................................................................................... 36
2.1.2 Printhead .................................................................................................... 37
2.1.2.1 Printing Process ................................................................................. 37
2.1.2.2 Printing Method ................................................................................. 38
2.1.3 Carriage Mechanism .................................................................................. 39
2.1.4 Paper Feeding Mechanism ......................................................................... 40
2.1.5 Paper Loading Mechanism (ASF Unit) ..................................................... 41
2.1.6 Ink System Mechanism ............................................................................. 49
2.1.6.1 Pump Unit & Wiper mechanism ....................................................... 49
2.1.6.2 Capping Mechanism .......................................................................... 50
2.2 Electrical Circuit Operating Principles .......................................................... 51
2.2.1 C424 PSB/PSE board ................................................................................ 51
2.2.2 C424 MAIN-B Board ................................................................................ 54
2.2.2.1 Main elements ................................................................................... 55
2.2.2.2 Printhead Driver Circuit .................................................................... 56
2.2.2.3 CR / PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit .................. 57
2.2.2.4 Reset Circuit ...................................................................................... 57
2.2.2.5 EEPROM Control Circuit ................................................................. 58
2.2.2.6 Sensor Circuit .................................................................................... 58
Chapter 3 Troubleshooting
3.1 Overview ............................................................................................................ 61
3.1.1 Communication Error ................................................................................ 62
3.1.2 Too Late Throughput ................................................................................. 62
3.1.3 Status Monitor does not operate ................................................................ 63
3.1.4 Troubleshooting with LED Error Indications ............................................ 64
3.1.4.1 Remedy when a paper out, double feed or paper jam error
occurs ................................................................................................. 66
3.1.4.2 Remedies for No I/C and Ink Out Errors .......................................... 71
3.1.4.3 Countermeasures when an Ink Low indication appears. ................... 75
3.1.4.4 Remedies for the Maintenance Error ................................................. 75
3.1.4.5 Remedies for Fatal Error ................................................................... 76
3.1.5 Isolating the Faulty Part on the Power Supply Board ................................ 79
3.1.6 Isolating the Faulty Part according to the Phenomenon ............................ 82
3.1.6.1 PF Motor Driver Abnormal 1 ............................................................ 83
3.1.6.2 ASF Driver Abnormal 1 .................................................................... 84
3.1.6.3 Unexpected Ink Out Error 1 (During Print Operation) ..................... 85
3.1.6.4 PF Motor Driver Abnormal 2 ............................................................ 86
3.1.6.5 Carriage Operation Abnormal ........................................................... 87
3.1.6.6 Dot Missing 1 .................................................................................... 89
3.1.6.7 Dot Missing 2 .................................................................................... 90
3.1.6.8 Dot Missing 3 .................................................................................... 92
3.1.6.9 Repair Handling Failure .................................................................... 93
3.1.6.10 ASF Driver Abnormal 2 .................................................................. 93
3.1.6.11 CR Motor Operation Abnormal ...................................................... 95
Chapter 4 Disassembly and Assembly
4.1 Overview ............................................................................................................ 97
4.1.1 Precautions ................................................................................................. 97
4.1.2 Tools .......................................................................................................... 98
4.1.3 Work Completion Check ........................................................................... 99
4.1.4 Screws ...................................................................................................... 100
4.2 Disassembly ..................................................................................................... 101
4.2.1 Housing Removal .................................................................................... 102
4.2.1.1 Printer Cover Removal .................................................................... 102
4.2.1.2 Stacker Assembly Removal ............................................................ 102
4.2.1.3 Upper Case Removal ....................................................................... 103
4.2.1.4 Rear Cover Removal ....................................................................... 104
4.2.1.5 Middle Housing Removal ............................................................... 104
4.2.1.6 Printer Mechanism Unit Removal ................................................... 105
4.2.1.7 Waste Ink Pad Removal .................................................................. 108
4.2.2 ASF Unit Removal .................................................................................. 108
4.2.3 Main Board Assembly Removal .............................................................. 110
4.2.4 Power Supply Board Assembly Removal ............................................... 111
4.2.5 Print Head / Ink System Unit Removal ................................................... 113
4.2.6 Carriage Unit / CR Guide Shaft Removal ............................................... 116
4.2.7 Front Paper Guide Removal .................................................................... 121
4.2.8 EJ Roller Unit Removal ........................................................................... 122
4.2.9 Motor Removal ........................................................................................ 123
4.2.9.1 PF Motor Removal .......................................................................... 123
4.2.9.2 CR Motor Removal ......................................................................... 124
4.2.10 PE Actuator Removal ............................................................................ 125
4.2.10.1 Encoder Unit Board Removal ....................................................... 125
4.2.11 PF Roller Unit Removal ........................................................................ 126
4.2.12 ASF Unit Disassembly .......................................................................... 127
4.2.12.1 ASF Assembly Points .................................................................... 132
4.2.13 Rotary Encoder Removal ....................................................................... 134
Chapter 5 Adjustment
5.1 Overview .......................................................................................................... 138
5.1.1 Conditions for Each Adjustment ............................................................. 138
5.2 Adjustment ...................................................................................................... 140
5.2.1 Setup the Adjustment Program ................................................................ 140
5.2.2 Head ID Input .......................................................................................... 141
5.2.3 Ink Charge ............................................................................................... 143
5.2.4 Head Angle Adjustment. ......................................................................... 144
5.2.5 Bi-D Adjustment ...................................................................................... 149
5.2.6 PF Adjustment ......................................................................................... 152
5.2.7 USB ID Readout (Checking) ................................................................... 155
5.2.7.1 Possible to Readout the Original USB ID (CASE 1) ...................... 155
5.2.7.2 Impossible to Readout the Original USB ID (CASE 2) .................. 157
5.2.8 EEPROM Initialization ............................................................................ 157
5.2.9 Platen Gap Adjustment (Mechanism Adjustment) .................................. 159
5.2.10 Head Cleaning Operation ...................................................................... 162
5.2.11 Protection Counter Clear (and Check) ................................................... 163
5.2.12 Top Margin Adjustment ........................................................................ 164
5.2.13 First Dot Position Adjustment ............................................................... 166
Chapter 6 Maintenance
6.1 Overview .......................................................................................................... 170
6.1.1 Cleaning ................................................................................................... 170
6.1.2 Service Maintenance ................................................................................ 171
6.1.3 Lubrication and Adhesion ........................................................................ 172
6.1.4 Lubrication the Carriage Guide Shaft ...................................................... 173
Chapter 7 Appendix
7.1 Connector Summary ...................................................................................... 183
7.1.1 Major Component Unit ............................................................................ 183
7.1.2 EEPROM Address Map ........................................................................... 187
7.1.3 CSIC Address Map .................................................................................. 193
7.2 Component Layout ......................................................................................... 196
7.3 Exploded Diagram .......................................................................................... 198
7.4 Parts List ......................................................................................................... 208
7.5 Electrical Circuits ........................................................................................... 213

PRODUCT DESCRIPTION

CHAPTER
1
EPSON Stylus COLOR C70/C80 Revision A

1.1 FEATURES

The major features of EPSON color inkjet printers EPSON Stylus COLOR C70 / C80 are:
High Color Print Quality
2880 (H) X 720 (V) dpi printing 4 Color Printing (YMCK)
Built-in Auto Sheet Feeder
Holds 150 cut-sheets (64g/m Holds 15 envelopes
Built-in 2 I/F
Bi-directional parallel I/F (IEEE-1284 level 1 device) USB
Windows/Macintosh exclusive (Stylus COLOR C70 only )
1 scalable fonts, 2 LQ fonts (Stylus COLOR C80 only )
Roman (scalable)
2
)
Roman, Courier (LQ)
Accessory
Figure 1-1. Product’s external view
Enclosed parts
User’s manual: 1
Driver disk: 1
Black ink cartridge: 1
Cyan ink cartridge: 1
Magenta ink cartridge: 1
Yellow ink cartridge: 1
Power cord: 1 (220-240 version)
PRODUCT DESCRIPTION FEATURES 10
EPSON Stylus COLOR C70/C80 Revision A

1.2 SPECIFICATIONS

This section covers specifications of the printers.

1.2.1 Physical Specification

Weight: 5.8kg (without the ink cartridges)
Dimension: 452 mm (W) x 562 mm (D) x 295 mm (H)

1.2.2 Printing Specification

Print Method
On demand ink jet
Nozzle Configuration
Monochrome 180 nozzles
Color 60 nozzles x 3 (Cyan, Magenta, Yellow)
Table 1-2. Character Mode (Stylus COLOR C80)
Character Pitch Printable Column LQ Speed
10 CPI (Pica) 80 238 CPS
12 CPI (Elite) 96 285 CPS
15 CPI 120 357 CPS
17 CPI (Pica condensed) 137 406 CPS
20 CPI (Elite condensed) 160 476 CPS
Table 1-3. Raster Graphics Mode
Horizontal
Resolution
180 dpi 209.8mm(8.26 inch) 1488
360 dpi 209.8mm(8.26 inch) 2976
720 dpi 209.8mm(8.26 inch) 5952
Printable Area Available Dot CR Speed
Control Code*
762/482.6 mm/s
30/19 IPS
571.5/482.6 mm/s
22.5/19 IPS
482.6 mm/s 19 IPS
ESC/P2 expanded raster graphics code
EPSON Remote command
Paper Ejecting Direction
Print Direction
Bi-direction with logic seeking
Print Speed & Printable Columns*
Table 1-1. Character Mode (Stylus COLOR C70)
Character Pitch Printable Columns LQ Speed
10 CPI (Pica) 80 238 CPS
Character Tables*
(Stylus COLOR C70)
2 international character sets:
- PC 437 (US Standard Europe)
- PC 850 (Multilingual)
NOTE: But user cannot selsct.
PC437 is the default setting.
PRODUCT DESCRIPTION SPECIFICATIONS 11
EPSON Stylus COLOR C70/C80 Revision A
(Stylus COLOR C80)
legal and 14 international character sets
(38 character tables)
Typeface*
(Stylus COLOR C70)
Bit map LQ font:
-EPSON Courier 10 CPI
(Stylus COLOR C80)
Bit map LQ font:
-EPSON Roman 10 CPI, 12 CPI, 15 CPI, Proportional
-EPSON Courier 10 CPI, 12 CPI, 15 CPI
Scalable font
-EPSON Roman 0.5 pt., 8 pt. - 32pt.(every 2 pt.)
NOTE: Each Typeface has 4 variations as the following example of EPSON
Roman.
-EPSON Roman normal
-EPSON Roman bold
-EPSON Roman italic
-EPSON Roman bold italic
NOTE: (*)Do not mention to the user’s manual.
Character table and Typeface (Stylus COLOR C80 only )
Table 1-4. Character table and Typeface
Bit map font Scalable font
DOS version
Character table
Italic table PC 437(US Standard Europe) PC 850 (Multilingual) PC 860(Portuguese) PC 861(Icelandic) PC 865(Nordic) BRASCII Abicomp Roman 8 ISO Latin 1 PC 858 ISO 8859-15
PC 437 Greek PC 852(East Europe) PC 853(Turkish) PC 855(Cyrillic) PC 857(Turkish)
PC 866(Russian) PC 869(Greek) MAZOWIA(Poland) Code MJK(CSFR) ISO 8859-7(Latin/Greek) ISO Latin 1T(Turkish) Bulgaria(Bulgaria) PC 774 Estonia ISO 8859-2(ISO Latin 2) PC 866 LAT PC 866 UKR
EPSON Roman
EPSON Courier
supported supported
supported supported
EPSON Roman
PC APTEC(Arabic) PC 708(Arabic) PC 720(Arabic) PC AR864(Arabic)
Hebrew 7 Hebrew 8 PC 862(Hebrew)
* *
*
EPSON Roman
not supported
EPSON Roman
NOTE: (*) Do not describe in manual. These character tables can’t select in the
Default setting mode.
PRODUCT DESCRIPTION SPECIFICATIONS 12
EPSON Stylus COLOR C70/C80 Revision A

1.2.3 Paper Feeding

Feeding Method
Friction feed with ASF
Paper Path
Cut-sheet ASF (Top entry Front out)
Feed Speed
59.994 mm/sec (2.36 inch/sec) (Normal, continuous feed)
114.3 mm/sec (4.5 inch/sec) (Fast, continuous feed)

1.2.4 Input Data Buffer

(Stylus COLOR C70)
32KB
(Stylus COLOR C80)
256KB

1.2.5 Electric Specification

[120V Version]
Rated Voltage: AC120V Input Voltage Range: AC99∼132V Rated Frequency Range: 50∼ 60Hz Input Frequency Range: 49.5∼ 60.5Hz Rated Current: 0.6A (max. 1.2A) Power Consumption: Approx. T.B.D (ISO 10561 Letter Pattern)
Approx. 5W in standby mode Energy Star compliant
Insulation Resistance: 10 M ohms min.
(between AC line and chassis, DC 500V)
Dielectric Strength: AC 1000V rms. 1 minute or AC 1200V rms. 1second
(between AC line and chassis)
[220 240V Version]
Rated Voltage: AC220V∼240V Input Voltage Range: AC198∼264V Rated Frequency Range: 50∼60Hz Input Frequency Range: 49.5∼60.5Hz Rated Current: 0.3A (max. 0.6A) Power Consumption: Approx. T.B.D (ISO10561 Letter Pattern)
Approx. 5W in standby mode Energy Star compliant
Insulation Resistance: 10 M ohms min.
(between AC line and chassis, DC 500V)
Dielectric Strength: AC 1500V rms. 1 minute
(between AC line and chassis)
PRODUCT DESCRIPTION SPECIFICATIONS 13
EPSON Stylus COLOR C70/C80 Revision A

1.2.6 Environmental Condition

Temperature
Operating: 10 to 35°C (*
Non-operating: -20 to 40°C
1 month at 40°C and 120 hours at 60°C
Humidity
Operating: 20 to 80% RH
Non-operating: 5 to 85% RH
Resistance to Shock
Operating: 1G, within 1 ms
Non-operating: 2G, within 2 ms
Resistance to Vibration
Operating: 0.15G
Non-operating: 0.50G
NOTE: (*1) with shipment container
NOTE: (*2) without condensation
3)
(*1)
(*1)
(*2, *3)
(*1, *2)
(*1)

1.2.7 Reliability

Total Print Volume: 75,000 pages (A4, Letter)
Print Head Life: 3000 million dots/nozzle

1.2.8 Safety Approvals

[120V Version]
Safety Standards: UL1950
CSA 22.2 No.950
EMI: FCC part 15 subpart B Class B
CSA C108.8 Class B
[220240V Version]
Safety Standards: EN60950 (VDE)
EMI: EN55022 (CISPR Pub.22) Class B
AS/NZS 3548 Class B

1.2.9 Acoustic Noise

Level: Approx. 42dB(A) (According to ISO 7779)
NOTE: (*3) Condition is as following figure
90
80
70
60
Humidity (%)
50
40
30
20
10
27
20
35
30
40

1.2.10 CE Marking

[220240V Version]
Low Voltage Directive 73/23/EEC: EN60950 EMC Directive 89/336/EEC: EN55022 Class B
EN55024 EN61000-3-2 EN61000-3-3
Temperature (°C)
Figure 1-2. Temperature/Humidity Range
PRODUCT DESCRIPTION SPECIFICATIONS 14
EPSON Stylus COLOR C70/C80 Revision A

1.3 INTERFACE

The EPSON Stylus COLOR C70 / C80 provide USB and parallel interface as standard.

1.3.1 Parallel Interface

Transmission Mode: 8 bit parallel, IEEE-1284 compatibility mode Synchronization: By STROBE pulse Handshaking: By BUSY and ACKNLG signal Signal Level: 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
Maintenance request
Double feed
DATA
data byte n
t
hold
-STROBE
t
t
setup
stb
BUSY
t
ready
t
busy
-ACKNLG
t
ack
t
t
reply
nbusy
Figure 1-3. Data Transmission Timing
Table 1-5. Parameter
Parameter Minimum Maximum
tsetup 500ns -
thold 500ns -
tstb 500ns -
tready 0 -
tbusy - 500ns
1)
tt-out (*
2)
tt-in (*
treply 0 -
tack 500ns 10us
tnbusy 0 -
tnext 0 -
- 120ns
- 200ns
data byte n+1
t
next
PE signal is at high level during paper-out error.
NOTE: (*1) Rise and fall time of every output signal.
NOTE: (*2) Rise and fall time of every input signal.
PRODUCT DESCRIPTION INTERFACE 15
EPSON Stylus COLOR C70/C80 Revision A
Table 1-6. Typical Time of tack
Parallel I/F Mode Typical Time of tack
High Speed 0.5us
Normal Speed 2us
Table 1-7. Signal Level: TTL Compatible (IEEE-1284 level 1 device)
Parameter Minimum Maximum Condition
VOH* - 5.5V
VOL* -0.5V -
IOH* - 0.32mA VOH = 2.4V
IOL* - 12mA VOL = 0.4V
CO - 50pF
VIH - 2.0V
VIL 0.8V -
IIH - 0.32mA VIH = 2.0V
IIL - 12mA VIL = 0.8V
CI - 50pF
NOTE: (*) A low logic level on the Logic H signal is 2.0V or less when the
printers 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.
z
Table 1-8. Connector Pin Assignment and Signals
Pin No. Signal Name
1 -STROBE 19 In
2 DATA 0 20 In The DATA 0 through DATA 7 signals represent
3 DATA 1 21 In
Return
GND Pin
In/Out Functional Description
The strobe pulse. Read-in of data is performed at the falling edge of this pulse.
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.
Table 1-8. Connector Pin Assignment and Signals (continued)
Pin No. Signal Name
4 DATA 2 22 In
5 DATA 3 23 In
6 DATA 4 24 In
7 DATA 5 25 In
8 DATA 6 26 In
9 DATA 7 27 In
10 -ACKNLG 28 Out
11 BUSY 29 Out
12 PE 28 Out A high signal indicates paper-out error.
13 SLCT 28 Out
14 -AFXT 30 In Not used.
31 -INIT 30 In
32 -ERROR 29 Out A low signal indicates printer error condition.
36 -SLIN 30 In Not used.
18 Logic H - Out Pulled up to +5V via 3.9 K ohm resistor.
35 +5V - Out Pulled up to +5V via 3.3K ohm resistor.
17 Chassis GND - - Chassis GND
16,33, 19-30
15,34 NC - - Not connected
GND - - Signal GND
NOTE: In/Out refers to the direction of signal flow from the printers point of
view.
Return
GND Pin
In/Out Functional Description
The DATA 0 through DATA 7 signals represent data bits 0 to 7, respectively. Each signal is at high level when data is logical 1 and low level when data is logical 0.
This signal is a negative pulse indicating that the printer can accept data again.
A high signal indicates that the printer cannot receive data.
Always at high level when the printer is powered on.
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.
PRODUCT DESCRIPTION INTERFACE 16
EPSON Stylus COLOR C70/C80 Revision A

1.3.2 Parallel Interface (Reserve Channel)

Transmission Mode: IEEE-1284 nibble mode Adaptable Connector: See forward channel Synchronization: Refer to the IEEE-1284 specification Handshaking: Refer to the IEEE-1284 specification Data Trans. Timing: Refer to the IEEE-1284 specification Signal Level: IEEE-1284 level 1 device
See forward channel
Table 1-9. Connector Pin Assignment and Signals
Pin No. Signal Name
1 Host Clk 19 In Host clock signal.
2 DATA 0 20 In
3DATA 121 In
4 DATA 2 22 In
5DATA 323 In
6 DATA 4 24 In
7DATA 525 In
8 DATA 6 26 In
Return
GND Pin
In/Out Functional Description
The DATA 0 through DATA 7 signals represent data bits 0 to 7, respectively.
Each signal is at high level when data is logical 1 and low level when data is logical 0. These signals are used to transfer the 1284 extensibility request values to the printer.
Table 1-9. Connector Pin Assignment and Signals (continued)
Pin No. Signal Name
32
36 1284-Active 30 In 1284 active signal.
18 Logic-H - Out Pulled up to +5V via 3.9K ohm resistor.
35 +5V - Out Pulled up to +5V via 3.3K ohm resistor.
17 Chassis GND - - Chassis GND
16,33,
19-30
15,34 NC - - Not connected
-DataAvail / DataBit-0,4
GND - - Signal GND
NOTE: In/Out refers to the direction of signal flow from the printers point of
view.
Return
GND Pin
29 Out
In/Out Functional Description
Data available signal and reverse channel transfer data bit 0 or 4.
9DATA 727 In
10 PtrClk 28 Out Printer clock signal.
11
12
13
14 Host Busy 30 In Host busy signal.
31 -INIT 30 In Not used.
PtrBusy /
DataBit-3,7
AckDataReq
/ DataBit-2,6
Xflag /
DataBit-1,5
29 Out
28 Out
28 Out
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.
PRODUCT DESCRIPTION INTERFACE 17
EPSON Stylus COLOR C70/C80 Revision A
Extensibility Request:
The printer responds affirmatively when the extensibility request values are 00H or 04H, that mean,
00H: Request Nibble Mode Reverse Channel Transfer. 04H: Request Device ID;
Return Data Using Nibble Mode Rev Channel Transfer.
Device ID:
The printer sends 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]COLOR[SP]C70/C80; CLS: PRINTER; DES: EPSON[SP]STYLUS[SP]COLOR[SP]C70/C80;
When IEEE1284.4 is disabled,
[00H] [4BH] MFG: EPSON; CMD: ESCPL2, BDC; MDL: STYLUS[SP]COLOR[SP]C70/C80; CLS: PRINTER; DES: EPSON[SP]STYLUS[SP]COLOR[SP]C70/C80;

1.3.3 USB Interface

Standard: Based on
Universal Serial Bus Specifications Revision 1.0” “Universal Serial Bus Device Class Definition
for Printing Devices Version 1.0 Bit Rate: 12 M bps (Full Speed Device) Data Encoding: NRZI Adaptable Connector: USB Series B Recommended Cable Length: 2 meters
Table 1-10. Connector Pin Assignment and Signals
Pin No. Signal Name I/O Function Description
1 VCC - Cable power. Max. power consumption is 2mA
2 -Data Bi-Directional Data
3 +Data Bi-Directional Data, pull up to +3.3 V via 1.5K ohm resistor
4 Ground - Cable ground
Pin #2
Pin #1
Pin #3
Pin #4
Figure 1-4. USB Pin Assignment
PRODUCT DESCRIPTION INTERFACE 18
EPSON Stylus COLOR C70/C80 Revision A
Automatic Selection

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 from this kind of time-out, the printer receives data very slowly, several bytes per minute, even if the printer is in busy state. The slowdown 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. USB and IEEE1284.4 on the parallel interface do not require this function.

1.3.5 Interface Selection

The printer has 2 built-in interfaces: the USB and parallel interface. These interfaces are selected automatically.
An initial state is compatible interface and starts IEEE1284.4 communication when magic strings (1284.4 synchronous commands) are received.
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.
Automatic Selection
In this automatic interface selection mode, the printer is initialized to the idle state scanning which interface receives data when it is powered on. Then the interface that receives data first is selected. When the host stops data transfer and the printer is in the stand-by state for the seconds, the printer is returned to the idle state. As long as the host sends data or the printer interface is busy state, the selected interface is let as it is. The changes to other Interface are prohibited during Duplex printing.
Interface State and Interface Selection
When the parallel interface is not selected, the interface got into the busy state. When the printer is initialized or returned to the idle state, the parallel interface got 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 does provide basic transport-level flow control and multiplexing services. The multiplexed logical channels are independent of each other and blocking of one has no effect on the others. The protocol operate over IEEE1284.
PRODUCT DESCRIPTION INTERFACE 19
EPSON Stylus COLOR C70/C80 Revision A

1.3.7 Printer Language and Emulation

Printer Language: (Stylus COLOR C70)
EPSON ESC/P2 expanded raster graphics EPSON Remote
(Stylus COLOR C80)
ESC/P2 and expanded raster graphics code EPSON Remote command
1.3.7.1 Control codes
ESC/P2 control codes
Table 1-11. ESC/P2 control codes (Stylus COLOR C70)
General operation Initialize Printer ESC @
Paper feeding
Table 1-12. ESP/P2 control codes (Stylus COLOR C80)
General operation
Paper feeding
Form Feed Line Feed Carriage Return
Initialize Printer Unidirectional Printing CSF Mode Control
Form Feed Line Feed Line Spacing Carriage Return
FF LF CR
ESC @ ESC U ESC EM
FF LF ESC 0, ESC 2, ESC 3, ESC + CR
Table 1-12. ESP/P2 control codes (Stylus COLOR C80) (continued)
Typeface Pitch and Point
Font selection
Font enhancement
Spacing
Character handling
Bit image Bit Image ESC
Color Printing Color ESC r (Black )
EEPROM control EEPROM control ESC |
Pitch Italic font Bold Font Master Select
Double-Width Condensed Double-height Double-Strike Super / Subscript Underline Line / Score Character Style
Intercharacter Space HMI Define Unit
Character Table International Character User-Defined Characters Upper Control Codes Print Data as characters
ESC k, ESC x ESC X ESC P, ESC M, ESC g, ESC p ESC 4, ESC 5 ESC E, ESC F ESC !
ESC W, DC4, SO DC2, SI ESC w ESC G, ESC H ESC T, ESC S ESC ­ESC(­ESC q
ESC Space ESC c ESC (U
ESC t, ESC (t ESC R ESC %, ESC &, ESC : ESC 6, ESC 7 ESC (^
Page format
Print position motion
Page Length Left / Right Margin Top / Bottom Margin
Horizontal Print Position Vertical Print Position Tab Horizontally Tab Vertically Advance paper
ESC (C, ESC C, ESC C0, ESC (S ESC Q, ESC I ESC (c, ESC N, ESC O
ESC $, ESC ¥
ESC (V, ESC (v ESC D, HT ESC B, VT ESC J
PRODUCT DESCRIPTION INTERFACE 20
EPSON Stylus COLOR C70/C80 Revision A
Control codes for graphics mode
1.3.7.2 EPSON D4 control channel commands
Table 1-13. Control codes for graphics mode
Initialize Printer
General operation
Paper feeding
Page format
Print position motion
Spacing Define Unit ESC (U
Graphics
Printing mode Printing mode ESC (K
Color Printing Color ESC r, ESC (r
Unidirectional Printing CSF Mode Control
Form Feed Line Feed Line Spacing Carriage Return
Page Length Top / Bottom Margin Paper size
Horizontal Print Position Vertical Print Position
Graphics Mode Raster Graphics Dot size control Print a Image Microweave control (Stylus COLOR C80 )
ESC @ ESC U ESC EM
FF LF ESC + CR
ESC (C ESC (c ESC (S
ESC $, ESC ¥, ESC ($, ESC (/
ESC (V, ESC (v
ESC (G ESC ., ESC (D, ESC i ESC (e ESC ACK
ESC (i
The details of each command refer to 1284.4 control command specifications (DS-716).
Command List
Table 1-14. Command List
Contents Command m1
Reply Device ID di -
Reply Status string st -
Reply Cartridge
Position
Reply Ink Cartridge
condition
Exchange Ink
Cartridge
Execute Cleaning ch 0x01
Print Nozzle check
pattern
Terminate Ink-
exchange Sequence
Reply CSIC
Information
Set Printer timer
(Stylus COLOR C70 )
cx -
cs 0x00, 0x01
xi 0x01, 0x80
nc -
ei 0x00
ii 0x01, 0x02, 0x03, 0x04
ti m1
(*1)
Clear Paper Out
Error
Clear Paper Jam
Error
Reply Ink-exchange
flag
Initialize Printer rs 0x01
Reply number of
printable sheet
pe 0x01
pj 0x01
ex Com Num = 0x19
ir 0x80
PRODUCT DESCRIPTION INTERFACE 21
EPSON Stylus COLOR C70/C80 Revision A
Status Codes
NOTE: (*1) parameters indicate a time (Stylus COLOR C70 only)
Parameter Mean Note
m1, m2, year year = m2 x 256 +m1
m3 month 1<= m3 <= 12
m4 day 1 <= m4 <= 31
m5 hour 0 <= m5 <= 24
m6 minute 0 <= m6 <= 60
m7 second 0 <= m7 <= 60
Reply Printer State
The printer sends one of six string shown below that indicates current printer state periodically (set by a BDC-PS command. by default, 2 seconds.).
Format of reply strings:
@BDC [SP] ST [CR] [LF] ST:<Status Code>; ER:<Error Code>; [WR:<Warning Code>[,<Warning Code>]...;] IQ:<nn1><nn2><nn3><nn4>; RV;<n>; AI;CW:02<KK><CC><MM><YY>,MI:<mm>; [TC:<TTTT>;] INK:1101,3202,4304,5408;IG:0108NA; [FF]
The parameter <Status Code>is two bytes of ASCII codes that indicates printer status.
Table 1-15. Status Codes
Status Status code Priority
Error 00 1
Self-test 01 1
Busy (buffer full) “02“ 4
Wait (printing) “03“ 5
Idle 04 6
Cleaning/fill up “07“ 2
Before Initialize fill up “08“ 1
Error Codes
Theparameter <Error Code> is two bytes of ASCII codes that indicates
following errors of a printer.
Table 1-16. Error Codes
Error Code Printer State
00 Fatal Error
01 I/F not select Error
04 Paper jam Error
05 Ink Out Error
06 Paper Out Error
10 Maintenance request
12 Double Feed Error
PRODUCT DESCRIPTION INTERFACE 22
EPSON Stylus COLOR C70/C80 Revision A
Quantity of ink
The parameter <nn1>, <nn2>, <nn3>, <nn4> are two bytes ASCII codes that indicate quantity of black ink, cyan ink, magenta ink and yellow ink respectively. If the ink cartridge is not inserted, <nnx> indicates “NA”. The unit of these parameters is percentage in hex-decimal.
Warning Codes
The parameter <Warning Code> is two bytes of ASCII codes that indicates printer status
Table 1-17. Warning Codes
WR Ink state
10 Black ink low
11 Cyan ink low
12 Magenta ink low
13 Yellow ink low
Firmware revision
The parameter <n> is one bytes ASCII codes that indicate printer firmware revision.
Actuator information
The parameter <KK>, <CC>, <MM>, <YY> are two bytes ASCII codes that indicate ink weight rank ID of black ink, Cyan ink, magenta ink and yellow ink respectively. The parameter <mm> is two bytes ASCII codes that indicate Select­Microweave ID to determine the feed length of Microweave printings.
Cleaning time information
The parameter <TTTT> is four bytes ASCII codes that indicate total time of cleaning or charging sequences in second unit. This character strings is displayed only during cleaning or charging. (Status code of “07”)
MIB information
INK parameter shows the ink cartridge information for MIB. IG parameter shows the auto sheet feeder information for MIB.
PRODUCT DESCRIPTION INTERFACE 23
EPSON Stylus COLOR C70/C80 Revision A

1.4 OPERATOR CONTROLS

1.4.1 Operate Switch

Operate switch is located on the control panel.

1.4.2 Control Panel

1.4.2.1 Switches
There are 2 non-lock type push switches, 1 lock type push switch and 3 LED.
123
1.4.2.2 Indicators
(1) Power
Lights when the operate switch is “ON” and AC power is supplied.
(2) Paper Out
Lights during the paper-out condition, and blinks during the paper-jam condition.
(3) Ink Out
Lights during no ink condition, and blinks during the ink low condition.
Ink Button Paper Button Power Button
Figure 1-5. Control Panel
PRODUCT DESCRIPTION OPERATOR CONTROLS 24
EPSON Stylus COLOR C70/C80 Revision A

1.4.3 Panel Functions

Table 1-18. Panel Functions(Stylus COLOR C70)
Switch Function
Load/Eject
Cleaning
Cleaning (Pushing for 2 seconds
NOTE: (*1) 3 seconds is required at the Users manual.
NOTE: (*2) This function is not available in printing status.
Table 1-19. Panel Functions with Power On(Stylus COLOR C70)
Loads or Ejects the Paper.
When carriage is on the Ink check position, move carriage to
next ink check position or cartridge change position.
When carriage is on the ink cartridge change position, return carriage from Ink Cartridge change position.
In the condition of Double Feed Error, Returning from error condition printing is restarted.
Starts the Ink Cartridge change sequence. Move the carriage to cartridge change position.
When carriage is on the ink change position, move carriage to next ink check position or cartridge change position.
When carriage is on the ink change position, return carriage from ink cartridge change position.
Starts the cleaning of head.
In the condition of ‘Ink Low or Ink Out or No Ink Cartridge’,
*1)
starts the ink cartridge change sequence.
(*2)
(*2)
Table 1-20. Panel Functions with Power On(Stylus COLOR C80)
Switch Pressing with Power on Function
Paper
Ink
Paper
+
Ink
Start status printings. *
Enters the user setting mode.
Enters the particular setting mode (Service use only).
To enter the particular settings mode, it is necessary to push following switch while Paper Out LED is blinking. (It blinks about 5 seconds.)
(*1)
(*3)
NOTE: (*) Status printings prints firmware version, ink counter and nozzle
check patterns.
NOTE: (*1) According to the content of 1 BH of EEPROM, one of following
actions is carried out.
Table 1-21. The Content of 1 BH of EEPROM
Content of 1BH of EEPROM,
[bit 7][bit 6]
00
11
01
10
Print firmware version, ink counter, selected code page and nozzle check pattern
Start hex-dump printing
Start self test printing
Action
Switch Pressing with Power on Function
Load/Eject
Load/Eject
+
Cleaning
Start status printings.*
Enters the particular settings mode. (Service use only.)
To enter the particular settings mode, it is necessary to push following switch while Paper Out LED is blinking. (It blinks about 5 seconds.)
(*3)
(*1)
Table 1-22. User settings mode (Stylus COLOR C80 only)
Switch Function
Paper
Ink
Enters the default setting mode.
Enters the print head alignment mode.
(*1)
(*2)
NOTE: (*1) Refer to 1.4.5.1 Default setting.
NOTE: (*2) Refer to 1.4.5.2 Print head alignment.
PRODUCT DESCRIPTION OPERATOR CONTROLS 25
EPSON Stylus COLOR C70/C80 Revision A
Table 1-23. Particular settings mode (Stylus COLOR C70)
Switch Function
Load/Eject
Cleaning
(Pushing for 10
seconds )
Initialize EEPROM.
Reset the ink overflow counter in EEPROM.
(*3)
Table 1-24. Particular settings mode (Stylus COLOR C80)
Switch Function
Paper
Ink
(Pushing for 10
seconds )
Initialize EEPROM
Reset the ink overflow counter in EEPROM.
NOTE: (*3) Refer to Chapter 7 EEPROM map.
(*3)
and rest timer IC.
(*3)
(*3)

1.4.4 Printer Condition and Panel Status

Table 1-25. Printer Condition and LED Status
Printer Status
Power ON condition On - - 10
Ink sequence Blink - - 6
Ink Cartridge change mode Blink - - 5
Data processing Blink - - 8
Paper Out - - On 4
Double feed - - On 4
Paper jam condition - Off Blink 3
No ink cartridge or ink end - On - 7
Ink level low - Blink - 9
Enter EEPROM and Timer IC reset
Maintenance request Blink Blink Blink 2
Fatal error Blink On Blink 1
Power Ink Out Paper Out
- On On -
Indicators
Priority
NOTE: (-) Dont care.
The reason why possible causes of paper out and double feed errors are listed together is because double feeding during duplex printing can cause problems with page numbering and render the whole printing job useless, so that if it is judged that the paper is longer than the normal length, the current page is fully ejected, and then a paper out error is indicated straight away to prompt the customer to reset the paper. Furthermore, it is also assumed that such double-feed errors will result in the paper running out before the last page or the last few pages are printed, and so double feed and paper out errors are handled in the same way. This is considered to be a refinement of conventional paper jam detection.
PRODUCT DESCRIPTION OPERATOR CONTROLS 26
EPSON Stylus COLOR C70/C80 Revision A

1.4.5 Printer setting mode (Stylus COLOR C80 only)

When turning the printer on with pushing the Cleaning switch, the Paper Out LED starts blinking. Then, to pushing the Load /Eject switch again while the Paper Out LED is blinking, or no switch pushing while the Paper Out LED is blinking, the printer enters the Default setting mode. To pushing the Cleaning switch while the Paper Out LED is blinking, the printer enters the Print head alignment mode.
1.4.5.1 Default setting mode
There are some parameters that can be changed by users and will be referred at the time of initialization of the printer.
Setting method
(a)Press Load/Eject button.
The method of selecting language for Usage of this mode is printed.
(b)Select language for Usage of this mode by Cleaning button.
Paper Out LED, Ink Out LED and Power LED show the language for Usage of this mode that is currently selected. The selection will be advanced one by one as the button is pressed and the On/Off/Blink of those three LEDs will also be changed according to the selection.
(c)Press Load/Eject button.
The current setting and the Usage of this mode by selected language will be printed on the paper set in the paper path at that time.
(d)Select menu by Cleaning button.
Paper Out LED, Ink Out LED and Power LED show the menu which is selected at that time. The selection will be advanced one by one as the button is pressed and the combination of those three LEDs status of On/Off/Blink/2-Blinks will be changed according to the selection.
(e)When Load/Eject button is pressed, Printer changes the indication to the setting value
of the selected menu. Paper Out LED , Ink Out LED and Power LED show the current setting value.
(f)Select setting value by Load/Eject button.
Paper Out LED, Ink Out LED and Power LED show that menus value by status of On/Off/Blink/2-Blinks. That value can be changed by pressing Load/Eject button and the LEDs status of On/ Off/Blink/2-Blinks will be changed as the button is pressed.
(g)When Cleaning button is pressed, Printer memorize the setting value, and changes
the indication to the main menu. Paper Out LED, Ink Out LED and Power LED show the current menu setting.
(h)Repeat (d) to (g)
The menu selection will return to the first menu after the last menu selection is over.
(i)Turn the printer off
The setting is stored into non-volatile memory.
Table 1-26. Setting Menu
Menu Setting
Font Roman / Courier / Draft
Print direction Auto / Bi-D / Uni-D
Loading Position 3 mm / 8.5 mm / Others
Parallel I/F transfer rate Fast / Normal
Auto line feed Off / On
0 slash
Pitch 10 cpi, 12 cpi, 15 cpi, 17 cpi, 20 cpi, Proportional
Italic USA, Italic France, PC 858. Italic Germany, Italic U.K, ISO 8859-15, Italic Denmark, Italic Sweden, PC 863, Italic Italy, Italic Spain, PC 861, PC 437, PC 437 Greek, PC 771, PC 850, PC 853, PC 855, PC 852, PC 857, PC 866, PC 869, MAZOWIA,
Character tables
Code MJK. ISO 8859-7, ISO Latin 1T, Bulgaria, PC 774, Estonia, ISO 8859-2, PC 866 LAT, PC 860, PC 861, PC 865, PC 866 UKR, PC AR864, PC APTEC, PC 708, PC 720, BRASCII, Abicomp, Roman 8 ISO Latin1
0 / ø
PRODUCT DESCRIPTION OPERATOR CONTROLS 27
EPSON Stylus COLOR C70/C80 Revision A
1.4.5.2 Print head alignment mode
Some alignment can be adjusted by users.
Alignment method
(a) Press Cleaning button.
The method of selecting language for Usage of this mode’ is printed.
(b) Select language for Usage of this mode by Cleaning button.
Paper Out LED, Ink Out LED and Power LED show the language for Usage of this mode that is currently selected. The selection will be advanced one by one as the button is pressed and the On/Off/Blink of those three LEDs will also be changed according to the selection.
(c) Press Load/Eject button.
Printer prints the instruction sheets on how to adjust the printer.
(d) Look at the tests printed along with the instruction and press the Cleaning button
until the panel lights indicate the appropriate test number.
(e) Press Load/Eject button. Then, printer prints the test pattern.
(f) Look at the test patterns on the new printout and press the Load/Eject button until
the panel lights indicate the test pattern that is most closely aligned.
(g) Press the Cleaning button.
(h) Follow step (d) to step (g) as many times as needed to properly align all the test
patterns on the printouts.
(i) Turn the printer off.

1.4.6 Printer Initialization

There are three kinds of initialization method.
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 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 initialize the printer.
When printer is initialized, following action is performed: (a) Clears print buffer. (b) Sets default values.
4. 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.
PRODUCT DESCRIPTION OPERATOR CONTROLS 28
EPSON Stylus COLOR C70/C80 Revision A

1.4.7 Errors

Ink Out
When the printer runs out the most part of the ink of any 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 ink­cartridge in this state. An 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.
Paper Out
When printer fails to load a sheet, it goes paper out error.
Paper Jam
When printer fails to eject a sheet, it goes a paper jam error.
No Ink-Cartridge
When printer detects that ink-cartridge comes off, it goes this error mode.
Maintenance Request
When the total quantity of ink wasted through the cleanings and flushing is 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 service person.
Fatal Errors
Carriage control error or CG access error.
Double Feed
When printer fails to load a sheet, it goes Double feed error.
PRODUCT DESCRIPTION OPERATOR CONTROLS 29
EPSON Stylus COLOR C70/C80 Revision A

1.5 PAPER

1.5.1 Paper Handling

Do not perform reverse feed more than 9.5 mm (0.38”).

1.5.2 Paper Specification

1.5.2.1 Cut Sheet
Table 1-27. Paper Specification (Cut Sheet)
A4: Width 210 mm x Length 297 mm) Letter: Width 216 mm x Length 279 mm B5: Width 182 mm x Length 257 mm
Size
Thickness 0.08mm - 0.11mm
Weight 64g/m2 (17 lb.) - 90g/m2 (24 lb.)
Quality Exclusive paper, Bond paper, PPC
Legal: Width 216 mm x Length 356 mm Statement: Width 139.7 mm x Length 215.9 mm Executive: Width 184.2 mm x Length 266.7 mm Photo Paper: Width 101.6 mm x Length 152.4 mm
1.5.2.2 Envelope
Table 1-28. Paper Specification (Envelope)
No.10: Width 241 mm x Length 104.8 mm
Size
Thickness 0.16mm - 0.52mm
Weight 45g/m2 (12 lb.) - 75g/m2 (20 lb.)
Quality Bond paper, Plain paper, Air mail
NOTE: Envelope printing is only available at normal temperature.
NOTE: Keep the longer side of the envelope horizontally at setting.
DL: Width 220 mm x Length 110 mm C6: Width 162 mm x Length 114 mm
1.5.2.3 Index Card
Table 1-29. Paper Specification (Envelope)
A6 Index Card: Width 105 mm x Length 148 mm
Size
Thickness Less than 0.23 mm
A5 Index Card: Width 148 mm x Length 210 mm 5 x 8 Index Card: Width 127 mm x Length 203 mm 10 x 8 Index Card: Width 254 mm x Length 203 mm
PRODUCT DESCRIPTION PAPER 30
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