Epson STYLUS COLOR 480 User manual

EPSON STYLUSCOLOR480
Color Inkjet Printer
SEIJ00002
®
SERVICE MANUAL

Notice
oAll rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic,
mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.
oAll 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.
oThe contents of this manual are subject to change without notice.
oAll 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.
oThe 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. Printed in Japan.

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.
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.

About This Manual
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of EPSON Stylus Photo 720 / Stylus
Photo EX3. 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.
Contents
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
Provides the step-by-step procedures for the troubleshooting.
CHAPTER 4.DISASSEMBLY AND ASSEMBLY
Describes the step-by-step procedures for dissaembling and assembling the product.
CHAPTER 5.ADJUSTMENTS
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.
APPENDIXProvides the following additional information for
reference: • Connector pin assignments
• Electric circuit boards components layout
• Exploded diagram
• Electrical circuit boards schematics

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 WARNING, CAUTION or NOTE messages.
Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.
Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of,
equipment.
May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also provide
additional information that is related to a specific subject, or comment on the results achieved through a previous action.
W ARNING
CAUTION
CHECK
POINT

Revision Status
Revision Issued Date Description
Rev. A May, 11 2000 First Release
Rev. B 18, July 2000
* Page 72: Fig 4-2, Fig 4-3 was revised due the change of the top housing securing screw number.
* Page 76: Fig 4-11, Fig 4-12 was revised due to the addition of the Front Housing (Stacker Guide.)
* Page 139: The Exploded diagram was changed with new figure. The Front Housing (Stacker Guide) was
added in the Exploded diagram.
* Page 141: Ref. Number 108 Front Housing (Stacker Guide) was added in the parts list.

Product Description
Overview....................................................................................................... 10
Features.................................................................................................. 10
Basic Specification ....................................................................................... 11
Printing Specification............................................................................... 11
Paper Specification ................................................................................. 12
Printable Area.......................................................................................... 15
PG Adjust Lever...................................................................................... 16
Ink Cartridge............................................................................................ 17
Input Data Buffer..................................................................................... 18
Electric Specification............................................................................... 18
Reliability................................................................................................. 18
Safety Approvals..................................................................................... 18
Acoustic Noise......................................................................................... 18
CE Marking (for 220V - 240V)................................................................. 19
Environmental Conditions ....................................................................... 19
Interface Specification .................................................................................. 21
IEEE-1284 Parallel I/F (Forward Channel).............................................. 21
IEEE-1284 Parallel I/F (Reverse Channel).............................................. 22
EEE1284.4 Protocol................................................................................ 24
Miscellanea ............................................................................................. 25
Receive Data Buffer Full Operation ..............................................................25
Panel-less control & Status Indication..................................................... 25
Error Indication on Status Monitor 3 .............................................................25
Status Monitor 3 function .............................................................................27
Initialization.............................................................................................. 28
Physical Specification................................................................................... 29
Consumables and Options ........................................................................... 30
Operating Principles
Overview....................................................................................................... 32
Printer Mechanism .................................................................................. 32
Printhead................................................................................................. 33
Printing Process .............................................................................................34
Printing Method .............................................................................................34
Carriage Mechanism............................................................................... 35
Paper Feeding Mechanism ..................................................................... 36
Paper Loading Mechanism (ASF Unit).................................................... 37
Ink System Mechanism........................................................................... 40
Pump Unit & Wiper mechanism ....................................................................40
Capping Mechanism ......................................................................................41
Ink Sequence .......................................................................................... 41
Printing mode.......................................................................................... 43
......................................................... Electrical Circuit Operating Principles 44
C367 PSB/PSE board............................................................................. 44
C367MAIN-B Board ................................................................................ 46
Main elements ................................................................................................46
Printhead Driver Circuit .................................................................................47
PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit .......................................48
CR Motor Driver Circuit ................................................................................48
Reset Circuit ..................................................................................................49
EEPROM Control Circuit ..............................................................................49
Sensor Circuit ................................................................................................50
Troubleshooting
Overview ...................................................................................................... 52
Unit Level Troubleshooting........................................................................... 56
Disassembly and Assembly
Overview ...................................................................................................... 68
Precautions ............................................................................................. 68
Tools ....................................................................................................... 69
Work Completion Check ......................................................................... 70
Disassembly................................................................................................. 71
Housing removal ..................................................................................... 72
Printhead removal................................................................................... 73
CR motor removal................................................................................... 75
Circuit board removal.............................................................................. 76
Waste drain ink pad unit removal............................................................ 80
PF motor removal.................................................................................... 81
LD Roller removal ................................................................................... 82
HP/PE/IC Sensor removal....................................................................... 85
Ink system unit removal (Cap & Pump unit )........................................... 87
Paper Eject Roller removal ..................................................................... 89

Paper feed roller removal........................................................................ 91
CR unit removal....................................................................................... 93
Disassembling ASF frame unit................................................................ 96
Adjustment
Overview..................................................................................................... 100
Required Adjustment............................................................................. 100
Adjustment Program feature ................................................................. 101
Adjustment Program Installation Procedure.......................................... 102
Adjustment Program Initial Setting menu.............................................. 103
Sequential Repair Service Program feature............................................... 104
Feature.................................................................................................. 104
Printhead removal................................................................................. 106
Printhead replacement.......................................................................... 108
Main board replacement........................................................................ 111
CR unit replacement or removal............................................................ 115
CR motor replacement or removal ........................................................ 115
Printer mechanism replacement............................................................ 116
Waste ink pad replacement.................................................................. 116
Individual service adjustment program feature........................................... 117
Get status function ................................................................................ 117
Head cleaning function.......................................................................... 117
Initial ink charge function....................................................................... 117
Protection counter check/reset.............................................................. 117
EEPROM check function....................................................................... 118
Refurbishment for DOA......................................................................... 119
A4 Check pattern................................................................................... 120
Maintenance
Overview..................................................................................................... 122
Cleaning................................................................................................ 122
Service Maintenance............................................................................. 123
Lubrication............................................................................................. 124
Appendix
Connector Summary................................................................................... 129
Major Component Unit .......................................................................... 129
EEPROM Address Map ........................................................................ 131
Component Layout..................................................................................... 134
Exploded Diagram...................................................................................... 136
Parts List .................................................................................................... 141
Electrical Circuits........................................................................................ 145

CHAPTER
PRODUCTDESCRIPTION

EPSON Stylus COLOR 480 Revision B
Product Description Overview 10
1.1 Overview
Stylus Color 480 is developed newly for the low end product and realize a high quality
graphic printing with the low price.
1.1.1 Features
Major features of this printer are as follows;
oHigh quality color printing
n 720dpi (H) x 720 dpi(V) dpi printing.
n MACH technology (4 color printing. YMCK)
n Micro wave, Super micro wave printing
n Multi-Shot & Variable dot printing
oControl panel less
Host computer controls the printer.
oBuilt in I/F
n IEEE-1284 parallel
Windows exclusive printer.
oSmall, space-saving
oBuilt-in auto sheet feeder
n Holds 100 cut-sheets (65g/m2)
n Holds 10 envelopes
n Holds 10 transparency films
n Holds 30 special paper
Figure 1-1. External View

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 11
1.2 Basic Specification
1.2.1 Printing Specification
PRINTING METHOD
oOn demand ink jet
NOZZLE CONFIGURATION
oBlack: 48 nozzles x 1 row
oColor: 45 nozzles x 1 row
15 nozzle is assigned for each 3 colors in the one row.
(Cyan, Magenta, Yellow)
Figure 1-2. Nozzle Configuration (Seen from the Back of the Head)
PRINTING DIRECTION
oBi-direction with logic seeking
PRINTING SPEED
oCharacter mode: Refer to the table below
oRaster graphics mode: Refer to the table below.
CHARACTER SPECIFICATION
oCharacter code: None. International character sets is not available. Only following
characters are available.
nASCII 37 characters + Space code + One Symbol
Alphabet A-Z (Code 41H-5AH)
Number 0-9 (Code 30H-39H)
SPACE (Code 20H)
Symbol # (Code 23H)
nTypeface
Bit map LQ font: EPSON Courier 10CPI
0.21117 (1/120")
#M 15
#M 1
#C 1
#C 15
#Y1
#Y15
#B1
#B48
2.2578(32/360")
17
unit: mm
Table 1-1. Character mode: black only
Character pitch Character
Quality Printable Columns CR Speed
10CPI LQ 80column 20IPS
Table 1-2. Printing Speed (Raster Graphics Mode)
Horizontal
Resolution Printable Area Available Dot CR Speed Notes
480 dpi 8.26 inch 3968 14.1 IPS Black mode
360 dpi 8.26 inch 2976 20 IPS --
720 dpi 8.26 inch 5952 20 IPS --

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 12
CONTROL CODE
oESC/P for Stylus Color 480
oEPSON Remote command
PAPER FEED SPECIFICATION
oFeeding Method: Friction feed with ASF
oPaper Path: Cut sheet ASF (Top entry - Front out)
oLine Interval: Programmable by 1/6 inch or 1/360 inch
oPaper Feed Speed:
271.9ms 10 ms (10.16 mm (2/5 inch) at paper feed)
1.67inch/sec (at continuous paper feed)
1.2.2 Paper Specification
CUT SHEET
n
Size:
A4 (210 x 297 mm)
Letter (216 x 279 mm)
B5 (182 x 257 mm)
Legal (216 x 356 mm)
Statement (139.7mm x 215.9mm)
Executive (190.5 x 254 mm)
n Thickness (plain paper):
0.08mm to 0.11mm(0.003 to 0.004”)
n Weight:
64g/m
2
to 90g/m
2
(17lb to 24lb / 55 to 78 kg)
n Paper quality:
Exclusive paper, Bond paper, Plain paper, recycled paper
n ASF hopper available capacity
100 sheets
CAUTION
nNo wrinkled, scuffing, torn or folded paper be used.
nNo curled paper more than 5mm be used.

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 13
TRANSPARENCY, GLOSSY PAPER
n
Size
A4 (210mm x 297mm)
Letter (216mm x 279mm)
n Thickness
0.075mm to 0.085mm
n Quality
Exclusive paper
n ASF hopper available capacity
1sheet
NOTE: Transparency printing is available only in the normal temperature
ENVELOPE
n
Size:
No.10 (241.3 mm x 104.8 mm)
DL (220 mm x 110 mm)
C6 (162 mm x 114 mm)
4”x 6”(220mm x 132mm)
n Thickness
0.16mm to 0.52mm
n Weight
45g/m2 to 75g/m2
n Quality
Bond paper, Plain paper, Air mail
n ASF hopper available capacity
10sheets
NOTE: * Envelope printing is available only in the normal temperature.
* Keep the longer side of the envelope horizontally at setting.
INDEX CARD
n
Size
A6 Index card (105mm x 148mm)
A5 Index card (148mm x 219mm)
5 x 8” Index Card (127mm x 203mm)
10 x 8” Index card (127mm x 203mm)
n Thickness
Less than 0.23mm
n ASF hopper available capacity
30sheets
CAUTION
nUse above mentioned paper at normal temperature.
(temperature = 15 to 25%, humidity = 40 to 60% RH)
nNo wrinkled, scuffing, torn or folded paper be used.
nNo curled paper more than 5mm be used.
nNo paper with glue on flap be used.
nNo double envelops nor with window envelops be used.
nDo not print on the back.

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 14
SPECIAL PAPER
Paper type: EPSON exclusive paper
n Photo Quality Ink Jet Paper
A4 (210 x 297 mm)
A6 (105 x 148 mm)*
B5 (182 x 257mm)
Letter (216 x 279 mm)
Legal (216 x 356 mm)
5 x 8” (127 x 203 mm)*1
8 x10” (100 x 148 mm)*1
n 360 dpi Ink Jet Paper
A4 (210 x 297 mm)
Letter (216 x 279 mm)
n Transparencies *2)
A4 (210 x 297 mm)
Letter (216 x 279 mm)
n Photo Quality Glossy Film*2)
A4 (210 x 297 mm)
A6 (105 x 148 mm)*1
Letter (216 x 279 mm)
n Photo Paper (PP2)
A4 (210 x 297 mm)
Letter (216 x 279 mm)
Photo quality card 2 (100 x 148 mm)*1
Panorama (210 x 594 mm)
4” x 6”(113.6 x 175.4)
100mm x 150mm
200mm x 300mm
n Photo Sticker
A4 (210 x 297 mm)
A6 (105 x 148 mm)
8 “x 10” (100 x 148 mm)*1
n Iron-ON Transfer Paper
A4 (210 x 297 mm)
Letter (216 x 279 mm)
n Matte Paper
A4 (210 x 297 mm)
Letter (216 x 279 mm)
n High Quality Normal Paper
A4 (210 x 297 mm)
NOTE: *1): Set the enclosed loading support sheet as the last sheet in the ASF.
*2): Set the plain paper as the last sheet in the ASF.
CAUTION
Use above mentioned paper at normal temperature.
(temperature = 15 to 25%, humidity = 40 to 60% RH)

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 15
1.2.3 Printable Area
CUT SHEET
Refer to the following table. As for the each margin area, refer to the Figure 1-3
NOTE: *1): Bottom margin can be set up to 3mm at minimum when the paper
length is designated with “ESC(S” command.) However, the printing
quality is not guaranteed in the area ranging from 3mm to 14mm, from
the form lower end. When the paper length is not designated, the bottom
margin must be wider than 14 mm.
*2): Bottom margin for color printing can be set up 3mm at minimum
when the paper length is designated with “ESC(S” command.). However,
guaranteed print area of color printing is narrow than BK
(monochrome)printing. This is due to the each color nozzles is assigned
in the one row nozzles.
Figure 1-3. Printable Area
Table 1-3. Printable Area for Cut Sheet
Paper Size Paper
Width Paper Length LM/RM/ TM BK Bottom Margin(*1)
Color Bottom
Margin
(*1,*2)
A4 210mm 297mm 3mm 14 mm or more
than 3 mm 21mm or more than 3mm
Letter 216mm 279mm 3mm 14 mm or more
than 3 mm 21mm or more than 3mm
B5 182mm 257mm 3mm 14 mm or more
than 3 mm 21mm or more than 3mm
Legal 216mm 356mm 3mm 14 mm or more
than 3 mm 21mm or more than 3mm
Statement 139.7mm 215.9mm 3mm 14 mm or more
than 3 mm 21mm or more than 3mm
Executive 190.5mm 254mm 3mm 14 mm or more
than 3 mm 21mm or more than 3mm
LM RM
PL
TM
BM
Printable area
pri
n
tre

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 16
ENVELOP (PRINTABLE AREA)
Refer to the following table.
Table 1-4. Printable area for Envelop
NOTE: *1): Bottom margin can be set up to 3mm at minimum when the paper
length is designated with “ESC(S” command.) However, the printing
quality is not guaranteed in the area ranging from 3mm to 14mm, from
the form lower end. When the paper length is not designated, the bottom
margin must be wider than 14 mm.
*2): Bottom margin for color printing can be set up 3mm at minimum
when the paper length is designated with “ESC(S” command.). However,
guaranteed print area of color printing is narrow than BK
(monochrome)printing. This is due to the each color nozzles is assigned
in the one row nozzles.
Figure 1-4. Printable area for Envelop
1.2.4 PG Adjust Lever
Unlike other products, this printer dose not have the PG (Platen Gap) adjust lever in the
printer mechanism. So, the Platen Gap value can not be changed according to the paper
thickness.
Paper Size Paper
Width Paper Length LM RM/TM
BK
Bottom
Margin(*1
)
Color
Bottom
Margin
(*1,*2)
#10 241mm 104.8 mm 28mm 3mm 14 mm or more than
3 mm
21mm or
more than
3mm
DL 216mm 279mm 7mm 3mm 14 mm or
more than
3 mm
21mm or
more than
3mm
C6 182mm 257mm 3mm 3mm 14 mm or more than
3 mm
21mm or
more than
3mm
BM
TM
RM
LM
Printable area

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 17
1.2.5 Ink Cartridge
INK CARTRIDGE (BLACK)
oType: Exclusive cartridge
oColor: Black
oPrint capacity: 270 pages/A4 (ISO/IEC 10561 Letter Pattern at 360dpi)
oInk life: 2 years from production date
oStorage temperature:
n -30 ° C to 60 ° C
Being transported, within 120 hours at 60
° C, within a month at 40 ° C
n -30 ° C to 40 ° C
Packing storage, within a month at 40
° C
n -20 ° C to 40 ° C
Mounted on the printer, within a month at 40
° C
oDimension: 19.8mm (W) x 52.7 mm (D) x 38.5mm (H)
Figure 1-5. Black Ink Cartridge
COLOR INK CARTRIDGE
oType: Exclusive cartridge
oColor: Magenta, Cyan, Yellow
oPrint capacity: 150 pages/A4 (360dpi, 5% duty each color)
oInk life: 2 years from production date
oStorage temperature:
n -30 ° C to 60 ° C
Being transported, within 120 hours at 60
° C, within a month at 40 ° C
n -30 ° C to 40 ° C
Packing storage, within a month at 40
° C
n -20 ° C to 40 ° C
Mounted on the printer, within a month at 40
° C
oDimension: 42.9mm (W) x 52.7 mm (D) x 38.5mm (H)
Figure 1-6. Color Ink Cartridge
19.8
52.7
38.5
18.3
51.2
42.9
52.7
41.4
51.2
38.5

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 18
1.2.6 Input Data Buffer
oBuffer: 16Kbytes
1.2.7 Electric Specification
120V VERSION
oRated voltage: AC 120V
oInput voltage range: AC 99 -132V
oRated frequency range: 50 - 60Hz
oInput frequency range: 49.5-60.5 Hz
oRated current: 0.4A(Max 0.5A)
oPower consumption: Approx. 21W (ISO/IEI 10561 Letter pattern)
Approx. 5W in Standby mode
Energy star compliant
oInsulation Resistance: 10 M ohms min.
(between AC line and chassis, DC 500V)
oDielectric Strength: AC 1000 V rms. 1 minute or
AC 1200 V rms 1 second
(between AC line and chassis)
oLeak Current: less than 0.25mA(input:100V/50Hz)
less than 0.75mA(input: 138V/60Hz)
220 - 240V VERSION
oRated voltage: AC 220 - 240V
oInput voltage range: AC 198 -264V
oRated frequency range: 50 - 60Hz
oInput frequency range: 49.5-60.5 Hz
oRated current: 0.2A (Max. 0.3A)
oPower consumption: Approx. 21W (ISO/IEI 10561 Letter pattern)
Approx. 5.5W in standby mode
Energy star compliant
oInsulation Resistance: 10 M ohms min.
(between AC line and chassis, DC 500V)
oDielectric Strength: AC 1500 V rms. 1 minute
oLeak Current: less than 0.75mA (input: 276V/60Hz)
1.2.8 Reliability
oTotal print volume: : 10000 pages (A4.Letter) (except ESP,EIO,EPC)
: 20000 pages (A4, Letter) (ESP, EIO,EPC)
oPrinthead Life: 4000 million dots/nozzle
.
1.2.9 Safety Approvals
120V VERSION
oSafeties standards: UL1950 with D3
CSA C22.2 No.950 with D3
oEMI: FCC part15 subpart B class B
CSA C108.8 class B
220V -240V VERSION
oSafety standards: EN60950(VDE)
EN55022 (CISPR Pub.22) Class B
oEMI: EN55022 (CISPR Pub.22) Class B
1.2.10 Acoustic Noise
oLevel Approx. 45dB(A) (According to ISO 7779)

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 19
1.2.11 CE Marking (for 220V - 240V)
oLow Voltage Directive 73/23/eec : ENN60950
oEMC Directive 89/336/EEC : EN55022 Class B
: EN61000-3-2
: EN610000-3-3
: EN50082-1
IEC801-2
IEC801-3
IEC801 -4
1.2.12 Environmental Conditions
TEMPERATURE
oOperating: 10 to 35°C (Refer to Figure 1-7)
oNon-operating: -20 to 60°C (with shipment container)
1 month at 40°C
120hours at 60°C
HUMIDITY
oOperating: 20 to 80% RH
without condensation, Refer to Figure 1-7
oNon-operating: 5 to 85% RH
without condensation, with shipment container
The environmental condition should be within the range shown in the figure below.
Figure 1-7. Environmental Condition
RESISTANCE TO SHOCK
oOperating: 1 G, within 1ms (operating)
oNon-operating: 2G, within 2ms (with shipment container)
RESISTANCE TO VIBRATION
oOperating: 0.15G
oNon-operating: 0.50G (with shipment container)
(”C)
(%)
80
55
20
10 27 35
tmph mid

EPSON Stylus COLOR 480 Revision B
Product Description Basic Specification 20
CAUTION
nWhen non-operating, make sure the printhead is capped.
nWhen transporting, make sure the printhead is capped and keep
the ink cartridge mounted on the printer.
nUnder the power OFF condition, if the printhead is not capped,
turn ON the printer after installing the ink cartridge, and turn
off the printer after the capping has completed.
nIf the printer kept under -40 ° C , the ink inside the printhead and
inside the ink cartridge will be frozen.
It takes 3 hours at 25
° C to recover once frozen ink to be ready for
use.