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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

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/m )
2

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.

Table 1-1. Consumable
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




Rev. A 1-1
Chapter1 Product Description
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.

Table 1-2.Raster Graphics Mode
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.


#1
90DPI 180DPI
#3

#5




2.2578 mm 10.16 mm 7.9022 mm 2.2578 mm


Y1 M1 C1
#23
Y2 M2 C2 #24
#25
Y3 M3 C3 #26

Y4 M4 C4




Y19 M 19 C19 #59
#60
Y20 M 20 C20 #61
#62
Y21 M 21 C21 #63
#64

(Y) (M) (C) (B2) (B1)
Figure1-1. Stylus Color 400 Nozzle
Configuration


1-2 Rev. A
EPSON Stylus Color 400 Service Manual


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




Rev. A 1-3
Chapter1 Product Description


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")
2 2
[Weight] : 64g/m (17Ib.) - 90g/m (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")
2 2
[Weight] : 45g/m (12Ib.) - 75g/m (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.




1-4 Rev. A
EPSON Stylus Color 400 Service Manual


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.

Table 1-3.Adjust Lever Settings
Paper Lever position PG adjustment value
Normal paper, Front 0 mm (1.1mm between head and platen)
Coated paper
Envelopes Rear 0.9 mm (2.0mm between head and platen)


Front (Mark "0") Rear (Mark "+")




Level adjustment lever




CR Guide Shaft
Bush




Figure 1-2. Adjust Lever Settings




Rev. A 1-5
Chapter1 Product Description
1.2.4 Printing Area
[Cut Sheet]
Following tables show printable areas at Character mode and Raster Graphics mode.

Table 1-4. Character Table
Paper size PW(Paper PL(Paper LM(Left RM(Right TM(Top BM(Bottom
width) Length) margin) margin) margin) margin)
(typ) (typ.) (min.) (min.) (min.) (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")


Table 1-5. Raster Graphics Mode
Paper size PW(Paper PL(Paper LM(Left RM(Right TM(Top BM(Bottom
width) Length) margin) margin) margin) margin)
(typ) (typ.) (min.) (min.) (min.) (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")

PW


LM RM



TM




PL
Printable Area




BM




Figure 1-3. Printing Area for Cut Sheets




1-6 Rev. A
EPSON Stylus Color 400 Service Manual
[Envelope]
The table and figure below show the printable area for envelopes.


Table 1-6. Printable Area for Envelope
Paper size LM(Left margin) RM(Right margin) TM(Top margin) BM(Bottom
(min.) (min.) (min.) 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")



LM RM



TM




Printable area



BM



Figure 1-4. Printing Area for Envelope




Rev. A 1-7
Chapter1 Product Description
1.2.5 Environmental Condition
Temperature
Operating :10 to 35