Epson Stylus Color 400 User manual

EPSON
COLOR INK-JET PRINTER
EPSON Stylus Color 400
SERVICE MANUAL
SEIKO EPSON CORPORATION
4007366

NOTICE

All rights reserved. Reproduction of any part of this manual in any form whatsoever
without SEIKO EPSON’s express written permission is forbidden.

The contents of this manual are subjects to change without notice.

All efforts have been made to ensure the accuracy of the contents of this manual.
However, should any errors be detected, SEIKO EPSON would greatly appreciate
being informed of them.

The above notwithstanding SEIKO EPSON can assume no responsibility for any errors
in this manual or the consequences thereof.
EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice:
Other product names used herein are for identification purposes only and may be
trademarks or registered trademarks of their respective companies.
Copyright 1997 by SEIKO EPSON CORPORATION
Nagano, Japan

PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury and 2)
damage to equipment.
WARNING
Signals a precaution which, if ignored, could result in serious or fatal personal injury.
Great caution should be exercised in performing procedures preceded by
WARNING Headings.
CAUTION
Signals a precaution which, if ignored, could result in damage to equipment.
The precautionary measures itemized below should always be observed when performing
repair/maintenance procedures.
WARNING
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND
PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.
2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH
BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN
THEIR LINE OF WORK.
3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL. DO NOT
CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE
POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING
ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
CAUTION
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY EPSON CERTIFIED
REPAIR TECHNICIAN.
2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE,
LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A
PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT
CONNECT IT TO THE POWER SOURCE.
3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE
POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS
AND/OR INDIVIDUAL CHIPS.
4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE
STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN
ACCESSING INTERNAL COMPONENTS.
5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY
THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER
NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY
APPLICABLE EPSON WARRANTY.

PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and
repair of EPSON Stylus Color 400.
The instructions and procedures included herein are intended for the experience repair technician,
and attention should be given to die precautions on the preceding page. The Chapters are
organized as follows:
CHAPTER 1. GENERAL DESCRIPTION
Provides a general product overview, lists specifications, and illustrates the main components of the
printer.
CHAPTER 2. OPERATING PRINCIPLES
Describes the theory of printer operation.
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
Includes a step-by-step guide for product disassembly and assembly.
CHAPTER 4. ADJUSTMENT
Includes a step-by-step guide for adjustment.
CHAPTER 5. TROUBLESHOOTING
Provides EPSON-approved techniques for troubleshooting.
CHAPTER 6. MAINTENANCE
Describes preventive maintenance techniques and lists lubricants and adhesives required to
service the equipment.
APPENDIX
Describes connector pin assignments, circuit diagrams, circuit board component layout and
exploded diagram.
The contents of this manual are subject to change without notice.

REVISION SHEET
Revision Issued Data Contents
Rev. A February18. 1997 First issue

TABLE OF CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
CHAPTER 2. OPERATING PRINCIPLES
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
CHAPTER 4. ADJUSTMENT
CHAPTER 5. TROUBLESHOOTING
CHAPTER 6. MAINTENANCE
APPENDIX

Chapter 1
Product Descriptions
1.1 Features.................................................................................................................1-1
1.2 Specifications.......................................................................................................1-2
1.2.1 Printing Specification............................................................................................................. 1-2
1.2.2 Paper Specification ................................................................................................................ 1-4
1.2.2.1 Cut Sheet...................................................................................................................1-4
1.2.2.2 Transparency, Glossy Paper.....................................................................................1-4
1.2.2.3 Envelope....................................................................................................................1-4
1.2.2.4 Index Card................................................................................................................. 1-4
1.2.3 Adjust Lever Settings (PG adjust lever)............................................................................... 1-5
1.2.4 Printing Area ........................................................................................................................... 1-5
1.2.5 Environmental Condition....................................................................................................... 1-8
1.2.6 Ink Cartridge Specifications.................................................................................................. 1-9
1.2.7 Physical Specification.......................................................................................................... 1-11
1.2.8 Input Data Buffer .................................................................................................................. 1-11
1.2.9 Electric Specification ........................................................................................................... 1-12
1.2.10 Reliability............................................................................................................................. 1-12
1.2.11 Safety Approvals................................................................................................................. 1-12
1.2.12 Acoustic Noise.................................................................................................................... 1-13
1.2.13 CE Marking.......................................................................................................................... 1-13
1.2.14 Printer Language and Emulation...................................................................................... 1-13
1.3 Interface...............................................................................................................1-15
1.3.1 Parallel Interface (Forward Channel).................................................................................. 1-15
1.3.2 Parallel Interface (Reverse Channel) .................................................................................. 1-16
1.3.3 Prevention Hosts from Data Transfer time-out.................................................................. 1-18
1.4 Control Panel ......................................................................................................1-19
1.4.1 Indicators............................................................................................................................... 1-19
1.4.2 Panel Functions.................................................................................................................... 1-20
1.4.3 Printer Condition and Panel Status.................................................................................... 1-22
1.5 Error Status.........................................................................................................1-23
1.5.1 Ink Out ................................................................................................................................... 1-23
1.5.2 Paper Out............................................................................................................................... 1-23
1.5.3 Paper Jam.............................................................................................................................. 1-23
1.5.4 No Ink-Cartridge ................................................................................................................... 1-24
1.5.5 Maintenance Request........................................................................................................... 1-24
1.5.6 Fatal Errors............................................................................................................................ 1-24
1.6 Printer Initialization ............................................................................................1-25
1.7 Initialization Settings..........................................................................................1-25
1.8 Main Components...............................................................................................1-26
1.8.1 Printer Mechanism ............................................................................................................... 1-26
1.8.2 C206 Main Control Board..................................................................................................... 1-26
1.8.3 C206 PSB/PSE Power Supply Board .................................................................................. 1-27
1.8.4 C206PNL(Panel) Board ........................................................................................................ 1-27

EPSON Stylus Color 400 Service Manual
Rev. A
1-1
1.1 Features
Stylus Color 400 is designed for PC users at home and low price for that high performance.
Also, this printer has the same high color print quality(720X720dpi) as Stylus ProXL. The major printer
features are;
 High color print quality
 720(H) x 720(V) dpi printing
 4 color printing (YMCBk)
 Traditional and New Microwave
 Black 64 nozzles, CMY 21 nozzles (Black=180dpi, CMY=90dpi)
 During 360 dpi printing, 1 dot is fired by 2 shots and 1 dot is fired by 1 shot during 720 dpi
printing.
 Built-in auto sheet feeder
 Holds 100 cut-sheets (55g/m2)
 Holds 10 envelopes
 Holds 10 transparency films
 Holds 65 special papers
 High-speed print
 200cps
 By using head drive frequency 14.4KHz, printing speed is twice faster
than Stylus Color.
 Compact size
 Non-operating : 429mm(W) x 234mm(D) x 162mm(H)
 Operating : 429mm(W) x 695mm(D) x 309mm(H)
 Weight : 5.2Kg(without cartridge)
 Acoustic noise
 Approximately 45 dB
 Bi-directional parallel I/F(IEEE-1284 level 1 device)
 One unit combined black and CMY head
 Windows exclusive
The following table shows consumable and option.
Item Code Remark
Black Ink Cartridge S020093 Color: Black
Color Ink Cartridge S020089 Color: Cyan/Magenta/Yellow
EPSON 360 dpi Ink Jet Paper S041025 Size: A4(200 sheets)
EPSON 360 dpi Ink Jet Paper S041059 Size: A4(100 sheets)
EPSON 360 dpi Ink Jet Paper S041060 Size: Letter(100 sheets)
Photo Quality Ink Jet Paper S041026 Size: A4(200 sheets)
Photo Quality Ink Jet Paper S041061 Size: A4(100 sheets)
Photo Quality Ink Jet Paper S041062 Size: Letter
Photo Quality Ink Jet Paper S041067 Size: Legal
Photo Quality Glossy Paper(New Release) S041126 Size: A4
Photo Quality Glossy Paper(New Release) S041124 Size: Letter
Photo Quality Glossy Film S041071 Size: A4
Photo Quality Glossy Film S041124 Size: Letter
Photo Quality Glossy Film S041107 Size: A6
Ink Jet Transparencies S041063 Size: A4
Ink Jet Transparencies S041064 Size: Letter
Photo Quality Ink Jet Card S041054 Size: A6
Photo Quality Ink Jet Card S041121 Size: 5 x 8 inches
Photo Quality Ink Jet Card S041122 Size: 10 x 8 inches
Photo Quality Self Adhesive Sheet S041106 Size: A4
Table 1-1. Consumable

Chapter1 Product Description
Rev. A
1-
2
1.2 Specifications
This section describes each specification for Stylus Color 400; 1) Printing specification, 2) Paper
specification, 3) Adjust lever settings, 4) Printing area, 5) Environmental condition, 6) Ink Cartridge
specification, 7) Physical specification, 8) Electric specification, 9) Reliability.
1.2.1 Printing Specification
 Print method
 On demand ink jet (MACH type. One unit combined with black and CMY head)
 Nozzle configuration
 Black 64 nozzles (32x2 staggered), Color 21 nozzles x 3 (Cyan, Magenta, Yellow)
(Black = Staggering 2 lines, 180 dpi, CMY= one line for each color, 90 dpi)
Note) During 360 dpi printing mode, one line is completed by 2-pass for black and by 4-pass for CMY.
 Print direction
 Bi-direction with logic seeking
 Print speed and Printable columns, character pitch and print quality
 360 dpi printing mode= 200 cps (Head drive frequency 14.4KHz)
 720 dpi printing mode= 200 cps (Head drive frequency 14.4KHz)
 About 80 columns
 10 pitch
 High quality (No draft mode)
 Printable area, available dot CR speed at Raster graphics mode
 Refer to table 1-2.
Horizontal resolution Printable area Available dot CR Speed
180 dpi 8.26 inch 1488 20 IPS
360 dpi 8.26 inch 2976 20 IPS
720 dpi 8.26 inch 5952 20 IPS
 Nozzle configuration
 Refer to figure 1-1.
Table 1-2.Raster Graphics Mode
(B2)
#1
#3
#5
C2
C3
C4
Y2
Y3
Y4
(C)
(M)
(Y)
90DPI 180DPI
#23
#24
Y20
Y21
#60
#62
#64
#59
#61
#25
#26
2.2578 mm
7.9022 mm
10.16 mm
2.2578 mm
(B1)
#63
C1
C19
C20
C21
M 1
M 2
M 19
M 20
M 21
M 3
M 4
Y1
Y19
Figure1-1. Stylus Color 400 Nozzle
Configuration

EPSON Stylus Color 400 Service Manual
Rev. A
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 Feeding method
 Friction feed with ASF
 Paper feed resolution
 0.035mm(1/720 inch)
 Line spacing
 1/6 inch or programmable at 1/360 inch
 Paper path
 Cut-sheet ASF(Top entry)
 Feeding speed
 66.6ms (1/6 inch)
 153.7ms (9.03mm line spacing)
 76.2ms (continues 3.0 inch/sec)
 Ink supply
 Exclusive ink cartridge(Black and CMY)
 Paper holding capacity of Hopper
 Size : Index card ∼Legal
 Thickness : Less than 8mm
 Paper capacity : 100 Cut sheets
: 10 Envelopes
: 65 Coated papers (360 dpi)
: 65 Coated papers (720 dpi)
: 30 Glossy papers
: 10 Transparent sheets
: 30 Index cards
Note) Those numbers above should be considered as reference. The actual paper accumulation should
be considered first.
 Character tables : 2 international character sets(Not Opened)
 PC437(US, Standard Europe)
 PC850(Multilingual)
 Typeface
 Bit map LQ font : EPSON Courier 10CPI
 Control code
 ESC/P Raster
 EPSON Remote command

Chapter1 Product Description
Rev. A
1-
4
1.2.2 Paper Specification
This section describes the printable area and 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”)]
: Statement [Width 139.7mm(5.5”) x Length 215.9mm(8.5”)]
: Exclusive [Width 190.5mm(7.5”) x Length 254mm(10”)]
[Thickness] : 0.08mm(0.003”) - 0.11mm(0.004”)
[Weight] : 64g/m2(17Ib.) - 90g/m2(24Ib.)
[Quality] : Exclusive paper, Bond paper, PPC
1.2.2.2 Transparency, Glossy Paper
[Size] : A4[Width 210mm(8.3”) x Length 297mm(11.7”)]
: Letter[Width 216mm(8.5”) x Length 279mm(11.0”)]
[Thickness] : 0.075mm(0.003”) - 0.085mm(0.0033”)
Note) Transparency printing is only available at normal temperature.
1.2.2.3 Envelope
[Size] : No.10 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”)
[Thickness] : 0.16mm(0.006”) - 0.52mm(0.02”)
[Weight] : 45g/m2(12Ib.) - 75g/m2 (20Ib.)
[Quality] : Bond paper, Plain paper, Air mail
Note 1) Envelope printing is only available at normal temperature.
Note 2) Keep the longer side of the envelope horizontally at setting.
1.2.2.4 Index Card
[Size] : A6 Index card: Width 105mm(4.1”) x Length 148mm(5.8”)
: A5 Index card: Width 148mm(5.8”) x Length 210mm(8.3”)
: 5x8” Index card: Width 127mm(5.0” x Length 203mm(8.0”)
: 10x8” Index card: Width 127mm(5.0”) x Length 203mm(8.0”)
[Thickness] : Less than 0.23mm(0.0091”)
Note 1) No curled, wrinkled, scuffing or torn paper be used.
Note 2) Set the lever to the proper position according to the paper type you print. (Refer to section
1.2.3 for details)
Note 3) Printing should be performed at room temperature in spite of the paper types.

EPSON Stylus Color 400 Service Manual
Rev. A
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5
1.2.3 Adjust Lever Settings (PG adjust lever)
The adjust lever located on the right side(blue) 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.
Paper Lever position PG adjustment value
Normal paper,
Coated paper Front 0 mm (1.1mm between head and platen)
Envelopes Rear 0.9 mm (2.0mm between head and platen)
Table 1-3.Adjust Lever Settings
Front (Mark "0") Rear (Mark "
+ ")
CR Guide Shaft
Bush
Level adjustment lever
Figure 1-2. Adjust Lever Settings

Chapter1 Product Description
Rev. A
1-
6
1.2.4 Printing Area
[Cut Sheet]
Following tables show printable areas at Character mode and Raster Graphics mode.
Paper size PW(Paper
width)
(typ)
PL(Paper
Length)
(typ.)
LM(Left
margin)
(min.)
RM(Right
margin)
(min.)
TM(Top
margin)
(min.)
BM(Bottom
margin)
(min.)
A4 210mm(8.3”) 297mm(11.7”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Letter 216mm(8.5”) 279mm(11.0”) 3mm(0.12”) 9mm(0.35”) 3mm(0.12”) 14mm(0.54”)
B5 182mm(7.2”) 257mm(10.1”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Legal 216mm(8.5”) 356mm(14.0”) 3mm(0.12”) 9mm(0.35”) 3mm(0.12”) 14mm(0.54”)
Statement 139.7mm(5.5”) 215.9mm(8.5”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Executive 190.5mm(7.5”) 254mm(10”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Paper size PW(Paper
width)
(typ)
PL(Paper
Length)
(typ.)
LM(Left
margin)
(min.)
RM(Right
margin)
(min.)
TM(Top
margin)
(min.)
BM(Bottom
margin)
(min.)
A4 210mm(8.3”) 297mm(11.7”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Letter 216mm(8.5”) 279mm(11.0”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
B5 182mm(7.2”) 257mm(10.1”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Legal 216mm(8.5”) 356mm(14.0”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Statement 139.7mm(5.5”) 215.9mm(8.5”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Executive 190.5mm(7.5”) 254mm(10”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)
Table 1-4. Character Table
Table 1-5. Raster Graphics Mode
PW
LM RM
TM
BM
PL
Printable Area
Figure 1-3. Printing Area for Cut Sheets

EPSON Stylus Color 400 Service Manual
Rev. A
1-
7
[Envelope]
The table and figure below show the printable area for envelopes.
Paper size LM(Left margin)
(min.) RM(Right margin) (min.) TM(Top margin) (min.) BM(Bottom margin)
(min.)
#10 3mm(0.12”) 28mm(1.10”) 3mm(0.12”) 14mm(0.55”)
DL 3mm(0.12”) 7mm(0.28”) 3mm(0.12”) 14mm(0.55”)
C6 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.55”)
Table 1-6. Printable Area for Envelope
LM RM
TM
BM
Printable area
Figure 1-4. Printing Area for Envelope

Chapter1 Product Description
Rev. A
1-
8
1.2.5 Environmental Condition
 Temperature
 Operating :10 to 35 °C (Refer to the figure below for condition)
 Non-operating : -20 to 60 °C(with shipment container)
Note) 1 month at 40 °C and 120 hours at 60 °C
 Humidity
 Operating : 20%  80% RH (without condensation. Refer to the figure below for
condition)
 Non-operating : 5%  85% RH (without condensation and with shipment container)
 Resistance to shock
 Operating : 1G, within 1 ms X,Y,Z directions
 Non-operating : 2G, within 2 ms X,Y,Z directions (with shipment container)
 Resistance to vibration
 Operating : 0.15G, 10  55Hz X,Y,Z directions
 Non-operating : 0.50G, 10  55Hz X,Y,Z directions (with shipment container)
Note 1) During non-operating, make sure that the head is capped.
Note 2) During the transport, make sure that the head is capped and ink cartridge is
installed to the printer.
Note 3) If the head is not capped at the power-off state, turn the power on with installed ink
cartridge and turn off the power after confirming that Power on operation is completed and
the head is capped.
Note 4) Ink will be frozen under -4°C environment, however it will be useable after placing it
more than 3 hours at 25°C.
Humidity
(% RH)
°C
(°F)
80%
55%
20%
10°C
(50°F)
27°C
(80°F)
35°C
(95°F)
Guaranteed range
Figure 1-5. Temperature/Humidity of Range

EPSON Stylus Color 400 Service Manual
Rev. A
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1.2.6 Ink Cartridge Specifications
[Black Ink Cartridge]
Item Specifications
Type Exclusive cartridge
Color Black
Print capacity 540 pages / A4 (ISO/IE10561 Letter Pattern at 360 dpi)
Validity 2 years (sealed in package) / 6months(out of package)
Environmental
conditions
 Temperature
 Storage : -20°C  40°C(within a month at 40°C)
 Packing storage : -30°C  40°C (within a month at 40°C)
 Transit : -30°C  60°C (within 120 hours at 60°C and within a
month at 40°C)
 Humidity
 5%  85%(without condensation)
 Resistance to vibration
 Sealed in package : 5  55Hz
 Acceleration : 29.4m/s less than <3G>
 Direction : X, Y, Z direction
 Time : 1 hour
 Drop
 Sealed in package :
 Dropping height : Less than 0.08m
 Direction : Drop the printer facing the bottom, sides and one
edge down.
 Out of package:
 Dropping height : Less than 1.50m
 Frequency : Once
Dimension 19.8mm(W) x 52.7(D) x 38.5mm(H)
Weight  Total ink cartridge : 54g
 Total ink : 16.4 ±0.5g (Quantity in the ink cartridge)
 Consumable ink : More than 12.1g(Useable ink quantity until ink ends)
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 is passed away the ink life.
Note 3) Ink will be frozen under -4°C environment, however it will be usual after placing it more than
3 hours at room temperature.
Table 1-7.Black Cartridge Specification
18.3
38.5
51.2
19.8
52.7
Figure 1-6. Ink Cartridge (Black)

Chapter1 Product Description
Rev. A
1-1
0
[Color Ink Cartridge]
Item Specifications
Type Exclusive cartridge
Color Magenta, Cyan, Yellow
Print capacity 320 pages / A4 (360 dpi, 5% duty each color)
Validity 2 years (sealed in package) / 6months(out of package)
Environmental
conditions
 Temperature
 Storage : -20°C  40°C (within a month at 40°C)
 Packing storage : -30°C  40°C (within a month at 40°C)
 Transit : -30°C  60°C (within 120 hours at 60°C and within a month
at 40°C)
 Humidity
 5%  85%(without condensation)
 Resistance to vibration
 Sealed in package : 5  55Hz
 Acceleration : 29.4m/s less than <3G>
 Direction : X, Y, Z direction
 Time : 1 hour
 Drop
 Sealed in package :
 Dropping height : Less than 0.08m
 Direction : Drop the printer facing the bottom, sides and one
edge down.
 Out of package:
 Dropping height : Less than 1.50m
 Frequency : Once
Dimension 42.9mm(W) x 52.7(D) x 38.5mm(H)
Weight  Total ink cartridge : 68g
 Total ink : 13.3  0.5g (Quantity in the ink cartridge)
 Consumable ink : More than 10.1g/each color(Useable ink quantity until
ink ends)
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 is passed away the ink life.
Note 3) Ink will be frozen under -4°C environment, however it will be usual after placing it more than
3 hours at room temperature.
Table 1-8. Color Ink Cartridge Specification
41.4
38.5
51.2
43.2
42.9
52.7
Figure 1-7. Ink Cartridge (Color)

EPSON Stylus Color 400 Service Manual
Rev. A
1-11
1.2.7 Physical Specification
[Dimension] : 429mm(W) x 234mm(D) x 162mm(H)
: 429mm(W) x 695mm(D) x 309mm(H) with extended stacker and paper support.
[Weight] : 5.2Kg
1.2.8 Input Data Buffer
10 K byte

Chapter1 Product Description
Rev. A
1-1
2
1.2.9 Electric Specification
[120V version]
[Rated voltage] : AC120V
[Input voltage range] : AC103.5∼132V
[Rated frequency range] : 50∼60Hz
[Input frequency range] : 49.5∼60.5Hz
[Rated current] : 0.4A(Max. 0.5A)
[Power consumption] : Approx.15W(ISO/IEC 10561 Letter pattern)
: Energy Star compliant
[Insulation Resistance] : 10M ohms min.(between AC line and chassis, DC500V)
[Dielectric strength] : AC1000 V rms. 1 minute or AC1200 Vrms. 1 second (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] : 0.2 A(Max. 0.3A)
[Power consumption] : Approx.15W(ISO/IEC 10561 Letter pattern)
: Energy Star compliant
[Insulation Resistance] : 10M ohms min.(between AC line and chassis, DC500V)
[Dielectric strength] : AC1500 V rms. 1 minute (between AC line and chassis)
1.2.10 Reliability
[Total print volume] : 10,000 pages(A4, letter)
[Print head life] : 2000 million dots/nozzle
1.2.11 Safety Approvals
[120V version]
Safety standard : UL1950 with D3
: CSA22.2 No.950 with D3
EMI : FCC part 15 subpart B class B
: CSA C108.8 class B
[220∼240V]
Safety standard : EN 60950(VDE,NEMKO)
EMI : EN55022(CISPR Pub.22) class B
: AS/NZS 3548 class B

EPSON Stylus Color 400 Service Manual
Rev. A
1-1
3
1.2.12 Acoustic Noise
[Level] : Approx.45 dB(A) (According to ISO 7779)
1.2.13 CE Marking
[220-240V version]
Low voltage Directive 73/23/EEC :EN60950
EMC Directive 89/336/EEC :EN55022 Class B
EN61000-3-2
EN61000-3-3
EN50082-1
IEC801-2
IEC801-3
IEC801-4
1.2.14 Printer Language and Emulation
[Printer Language] : ESC/P Raster
: EPSON Remote
[ESC/P control codes]
<Character mode >
 General Operation
 Initialize Printer : ESC@
 Paper feeding
 Form Feed : FF
 Line Feed : LF
 Carriage Return : CR
<Graphic mode>
 General operation
 Initialize Printer : ESC@
 Unidirectional Printing : ESC U
 CSF Mode Control : ESC EM
 Paper feeding:
 Form Feed : FF
 Line Feed : LF
 Line Spacing : ESC+
 Carriage Return : CR
 Page format
 Page Length : ESC(C
 Top/Bottom Margin : ESC(c
 Print position motion
 Horizontal Print Position : ESC$,ESC\
 Vertical Print Position : ESC (V,ESC (v
 Spacing
 Define Unit : ESC(U
 Graphics
 Graphics Mode : ESC(G
 Raster Graphics : ESC.
 Micro weave control : ESC(i
 Printing mode
 Printing mode : ESC(K