All rights reserved. Reproduction of any part of this manual in any form whatsoever
without SEIKO EPSON’s express written permission is forbidden.
The contents of this manual are subjects to change without notice.
All efforts have been made to ensure the accuracy of the contents of this manual.
However, should any errors be detected, SEIKO EPSON would greatly appreciate
being informed of them.
The above notwithstanding SEIKO EPSON can assume no responsibility f or any errors
in this manual or the consequences thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice:
Other product names used herein are for identification purposes only and may be
trademarks or registered trademarks of their respective companies.
Copyright 1997 by SEIKO EPSON CORPORATION
Nagano, Japan
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2)
damage to equipment.
WARNING
CAUTION
The precautionary measures itemized below should always be observed when performing
repair/maintenance procedures.
Signals a precaution which, if ignored, could result in serious or fatal personal injury.
Great caution should be exercised in performing procedures preceded by
WARNING Headings.
Signals a precaution which, if ignored, could result in damage to equipment.
WARNING
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND
PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.
2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH
BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN
THEIR LINE OF WORK.
3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL. DO NOT
CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE
POWER SUPPLY CABLE MUST BE CO NNECTED, USE EXT REME CAUT ION IN W O RKING
ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
CAUTION
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED O NLY BY EPSON CERTIFIED
REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT T HE SOURCE VOLT AGE IS THE SAME AS T HE RATED VOLT AGE,
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 T HE EPSON PRODUCT HAS BEEN DISCONNECT ED 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.
PREFACE
This manual descr ibes functions , theory of electrical and m echanical operations , maintenanc e, and
repair of EPSON Stylus Color 600.
The instructions and procedur es included herein are intended for the experience r epair technician,
and attention should be given to die precautions on the preceding page. The Chapters are
organized as follows:
CHAPTER 1. GENERAL DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the
printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENT
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides EPSON-approved techniques for troubleshooting.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques and lists lubricants and adhesives required to
service the equipment.
1.5.1 Ink Out ...................................................................................................................................... 24
1.5.2 Paper Out.................................................................................................................................. 24
1.5.3 Paper Jam................................................................................................................................. 24
1.5.4 No Ink-Cartridge Error............................................................................................................. 25
EPSON Sans Serif(10.5 pt, 8 to 32 pt (every 2 pt))
EPSON Roman T(10.5 pt, 8 to 32 pt (every 2 pt))
EPSON Sans Serif H (10.5 pt, 8 to 32 pt))
Note) *1: Each typeface has four different font style; Normal, Bold, Italic and Bold-Italic.
Table 1-4 Character Table and Typeface
VersionCharacter TableBit-map FontScaleable Font
CommonEPSON - ;
Roman
Sans Serif
Courier
Prestige
Script
StandardItalic
PC437 (US / Standard Europe)
PC850 (Multilingual)
PC860 (Portuguese)
PC861 (Icelandic)
PC863 (Canadian-French)
PC865 (Nordic)
BRASCII
Abicomp
Roman 8
ISO Latin 1
NLSPItalic
PC437 (US / Standard Europe)
PC850 (Multilingual)
PC437 Greek
PC852 (East Europe)
PC853 (Turkish)
PC855 (Cyrillic)
PC857 (Turkish)
PC866 (Russian)
PC869 (Greek)
MAZOWIA (Poland)
Code MJK (CSFR)
ISO 8859-7 (Latin/Greek)
ISO Latin 1T (Turkish)
Bulgaria (Bulgaria)
PC774
Estonia
ISO 8859-2 (ISO Latin 2)
PC866 LAT
SupportedSupportedSupported
SupportedSupportedSupported
SupportedSupportedNot
EPSON - ;
Roman
Sans Serif
EPSON - ;
Roman T
Sans Serif H
Supported
1-
Rev. A
5
1.2.2 Paper Specification
This section describes the types of paper that can be used in this printer.
1.2.2.1 Cut Sheet
[Size]
:A4[Width 210mm (8.3”) x Length 297mm (11.7”)]
:Letter[Width 216mm (8.5”) x Length 279mm (11.0”)]
:B5[Width 182mm (7.2”) x Length 257mm (10.1”)]
:Legal[Width 216mm (8.5”) x Length 356mm (14.0”)]
:Half Letter [Width 139.7mm (5.5”) x Length 215.9mm (8.5”)]
:Exclusive [Width 190.5mm (7.5”) x Length 254mm (10”)]
Note) Transparency printing is only available at normal temperature.
:A4[Width 210mm (8.3”) x Length 297mm (11.7”)]
:Letter[Width 216mm (8.5”) x Length 279mm (11.0”)]
:A6[Width 105mm (4.1”) x Length 148mm (5.8”)]
:0.13mm (0.005”) - 0.15mm (0.006”)
:0.17mm (0.007”) - 0.18mm (0.007”) for glossy paper
1.2.2.3 Envelope
[Size]
[Thickness]
[Weight]
[Quality]
Note) 1. Envelop printing is only available at normal temperature.
2. Keep the longer side of the envelope horizontally at setting.
: No.10[Width 241mm (9 1/2”) x Length 104.8mm (4 1/8”)]
: DL[Width 220mm (8.7”) x Length 110mm (4.3”)]
: C6[Width 162mm (6.4”) x Length 114mm (4.5”)]
: 0.16mm (0.006”) - 0.43mm (0.017”)
: 45g/m
: Bond paper, Plain paper, Air mail
2
(12Ib.) - 75g/m2 (20Ib.)
1.2.2.4 Index Card
[Size]
[Thickness]
[Weight]
Note) 1. No curled, wrinkled, scuffing or torn paper be used.
2. Set the lever to the proper position according to the paper type you print. (Refer to section
1.2.3 for details)
3. Printing should be performed at room temperature in spite of the paper types.
:A6 Index card[Width 105mm (4.1”) x Length 148mm (5.8”)]
:5x8” Index card[Width 127mm (5.0”) x Length 203mm (8.0”)]
:10x8” Index card [Width 127mm (5.0”) x Length 203mm (8.0”)]
:Less than 0.23mm(0.0091”)
:188g/m
2
Rev. A
1-
EPSON Stylus Color 600
6
1.2.3 Adjust Lever Settings (PG adjust lever)
The adjust lever located on the right side (blue knob) under the printer cover needs to be set to the proper
position according to the paper you print (Refer to the table below). Also, if there is any dirt caused by
friction on the wavy or wrinkled paper, this can be prevented by changing the lever position to rear position
(marked with “+”) in spite of paper types.
Table 1-5. Adjust Lever Settings
PaperLever positionPG adjustment value
Normal paper,
Coated paper
Transparency film
Label
EnvelopesRear0.9 mm (2.0mm between head and platen)
Front (Mark "0")
Front0 mm (1.1mm between head and platen)
+
Rear (Mark "
")
Level adjustment lever
CR Guide Shaft
Bush
Figure 1-2. Adjust Lever Settings
1-
Rev. A
Chapter 1 Product Description
7
1.2.4 Printable Area
1.2.4.1 Cut Sheet
Following tables show printable areas at Character mode and Raster Graphics mode.
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
:8 bit parallel, IEEE-1284 compatibility mode
:By /STROBE pulse
:BY BUSY and /ACKNLG signal
:TTL compatible level
:57-30360 (amphenol) or equivalent
PE signal is at high level during paper-out error.
Table 1-11 shows the signal and connector pin assignments for parallel interface(forward channel*1). In
case of these signals, twist pair line is used and returning side is connected to signal GND (*1). Forward
channel is the mode when the ordinary data such as print data is sent from the PC to the printer.
Table 1-11. Signal and Connector Pin Assignment for Parallel Interface
Pin No.Signal Name Return GND pinI/OFunctional Description
1/STROBE19InThe strobe pulse. Read-in of data is performed at
the falling edge of this pulse.
2-9DATA0-720-27InThe 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.
10/ACKNLG28OutThis signal is a negative pulse indicating that the
printer can again accept data.
11BUSY29OutA high signal indicates that the printer cannot
receive data.
12PE28OutA high signal indicates paper-out error.
13SLCT28OutAlways at high level when the printer is powered
on.
14/AFXT30InNot used.
31/INIT30InThe falling edge of a negative pulse or a low
signal on this line causes the printer to initialize.
Minimum 50 us pulse is necessary.
32/ERROR29OutA low signal indicates printer error condition.
36/SLIN30InNot used.
18Logic H-OutPulled up to +5V via 3.9K ohm resistor.
35+5V-OutPulled up to +5V via 3.3K ohm resistor.
17Chassis GND--Chassis GND.
16,33,19-30GND--Signal GND.
15,34NC--Not connected.
Note) “I/O” refers to the direction of signal flow from the printer’s point of view.
Note) The printer sends following device ID string when it is requested.
00H3CHContents
MFGEPSONProduction Maker
CMDESCPL2,BDCCommand system
MDLStylus[SP]Color[SP] 600Model name
CLSPRINTERClass
:IEEE-1284 nibble mode
:Refer to the IEEE-1284 specification
:Refer to the IEEE-1284 specification
:Refer to the IEEE-1284 specification
:IEEE-1284 level 1 device
:TTL compatible level
:57-30360 (amphenol) or equivalent
: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.
Table 1-12. Device ID Description
Chapter 1 Product Description
The table below shows pin assignment for reverse channel(*3). In these case of signals, twist pair line is
used and returning side is connected to Signal GND. (*3):Reverse channel is the mode that any data is
transferred from the printer to the PC.
Pin
No.
1HostClk19In Host clock signal.
2-9Data0-720-27In The DATA0 through DATA7 signals represent data bits 0
10PrtClk28Out Printer clock signal.
11PtrBusy, Data Bit-3,729Out Printer busy signal and reverse channel transfer data bit
12AckDataReq, DataBit-2,628Out Acknowledge data request signal and reverse channel
13Xflag, DataBit-1,528Out X-flag signal and reverse channel transfer data bit 1 or 5.
14HostBusy30In Host busy signal.
31/INIT30In Not used.
32/DataAvail, DataBit-0,429Out Data available signal and reverse channel transfer data
361284-Active30In 1284 active signal.
18Logic-H-Out Pulled up to +5V via 3.9K ohm resister.
35+5V-Out Pulled up to +5V via 3.3K ohm resister.
17Chassis GND-- Chassis GND.
16,33
19-30
15, 34NC--Not connected.
[00H] denotes a hexadecimal value of zero. MDL value depends on the EEPROM setting.
MDL value depends on the EEPROM setting. Model name can be changed by
changing a certain address in the EEPROM.
Table 1-13. Pin Assignment for Reverse Channel
Signal NameReturn
GND pin
GND-- Signal GND.
I/OFunctional description
to7, respectively.
Each signal is at high level when data is logical 1 and low
level when data is logical 0. These signals are used to
transfer the 1284 extensibility request values to the
printer.
3 or 7.
transfer data bit 2 or 6.
bit 0 or 4.
Note) “I/O” refers to the direction of signal flow from the printer’s point of view.
Rev. A
1-1
EPSON Stylus Color 600
8
Following lists “Notes” when using Parallel Interface.
“
Return GND pin” in the table means twist pair return and is used for all control signals except for
Logic H,+5V, Chassis, GND and NC. In this twist pair return, returning side is connected to
GND (16,33, 19-30 pin) for twist pair return. Also, these cables are shielded wires and it is
effective to connect to each chassis GND in the PC and printer for electrostatic noise.
Conditions for Interface are based on TTL level. Rise and fall time should be within 0.2µs.
Refer to the figure 1-9 for transmission timing of each signals.
Do not perform data transmission ignoring /ACK or BUSY signal. (Perform the data transmission
after confirming that /ACK and BUSY signals are Low.)
It is possible to perform the printing test including interface circuit without using equipment from
outside when 8-bit data signal(20-27 pin) is set to appropriate word code and connect them
forcefully to /ACK and /STRB.
1.3.2.1 Prevention Hosts from Data Transfer Time-out
Generally, hosts abandon data transfer to peripherals when a peripheral is in the busy state for dozens of
seconds continuously. To prevent hosts this kind of time-out, the printer receives data very slowly, several
bytes per minute, even if the printer is in busy state. This showdown 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.
:Stop Bit= 1 bit
[Connector]:8-pin mini-circular connector
[Recommended Cable]:Apple System Peripheral-8 Cable
(Part #:M0197)
Table 1-17. Pin Assignment
Pin No.Signal NameI/ODescription
1SCLKOSynchronous clock signal
2CTSIClear To Send
3TXD-OTransmit Data (-)
4SGI(Signal Ground)
5RXD-IReceive Data (-)
6TXD+OBalanced Transmit Data (+)
7DTROData Terminal Ready
8RXD+IBalanced Receive Data (+)
Table 1-18. X-ON/X-OFF and DTR Status
StateBuffer SpaceX-ON/X-OFFDTR
BusyLess than 3072 bytesSend X-OFF codeOFF
ReadyMore than 5120 bytesSend X-ON codeON
1-2
Rev. A
Chapter 1 Product Description
1.4 Control Panel
Since EPSON Stylus Color 600 does not require many buttons since printer driver can start various
settings and motions. Therefore, there are only 2 non-lock type push switches, 1 lock type push switch
and 4 LEDs.
Following figure shows control panel of EPSON Stylus Color 600.
Paper out LED
Ink out(Black)LED
Ink out(CMY)LED
1.4.1 Indicators
Cleaning Switch
(Ink maintenance)
Figure 1-11. Control Panel
Load/Eject switch
Power
Power switch
LED
Power
Lights when the operate switch is “ON”, and AC power is supplied.
Paper out
Lights during the paper-out condition, and blinks during the paper-jam condition.
Ink Out (Black)
Lights during no Black ink condition, and blinks during the Black ink low condition.
Ink Out (Color)
Lights during no Color ink condition, and blinks during the Color ink low condition.
Rev. A
1-21
EPSON Stylus Color 600
2
1.4.2 Panel Functions
Table 1-19. Panel Function
SwitchFunction
Load/Eject
(Pushing within 0.5 seconds*)
Load/Eject
(Pushing for 2 seconds*)
Cleaning
(Pushing for 2 seconds*)
Cleaning
(Pushing within 2 seconds*)
Note) *:3 seconds is required at the User’s manual.
**: This function is not available in printing status.
***: The time to complete the sequence may vary depending on the printer’s status.
Panel Functions with Power ON
SwitchFunction
Load/Eject
Cleaning
Load/Eject
+
Cleaning
Note) **: status printings prints firmware version, ink counter, selected code page and nozzle check
patterns.
Loads or Eject the paper.
When the carriage is on the Ink Cartridge change position, return the
carriage from Ink Cartridge change position.
Starts the Ink Cartridge change sequence.**
Moves the carriage to cartridge change position.
Starts the Head Cleaning sequence. ***
In the condition of “Ink Low” or “Ink Out” or “No Ink Cartridge” starts
the Ink Cartridge change sequence.**
When carriage is on the Ink Cartridge change position, return carriage
from Ink Cartridge change position.
Table 1-20. Panel Function with Power ON
Starts status printings.**
Enter the Default Setting mode
Enters the particular settings mode. (Factory use only.)
To enter the particular settings mode, it is necessary to push
followings switch while Paper Out LED is blinking.(It blinks about 5
seconds)
Particular setting mode
Table 1-21. Particular Setting Mode
SwitchFunction
Load/Eject
Note) ***: Refer to EEPROM map.
Initialize EEPROM *** and reset Timer IC.
1-2
Rev. A
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