Epson 3000 User Manual

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EPSON

EPSON Stylus COLOR 3000

SERVICE MANUAL

COLOR INK JET PRINTER

SEIKO EPSON CORPORATION

4007664

NOTICE

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without SEIKO EPSON’s express written permission is forbidden. The contents of this manual are subjects to change without notice.

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All efforts have been made to ensure the accuracy of the contents of this manual.

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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

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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.

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 res ult in ser ious or f atal per sonal 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.

iii

PREFACE

This manual descr ibes functions , theory of electrical and m echanical operations , maintenanc e, and repair of Stylus COLOR 3000. The instructions and procedur es included herein are intended for the experience r epair technician, and attention should be given to the 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.

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 Overview................................................................................................................1-1

1.2 Options and Consumables..................................................................................1-2

1.3 Specification.........................................................................................................1-4

1.3.1 Printing Specifications........................................................................................................... 1-4

1.3.2 Control codes ......................................................................................................................... 1-5

1.3.3 Character tables...................................................................................................................... 1-5

1.3.4 Paper Feeding......................................................................................................................... 1-6

1.3.5 Paper Handling ....................................................................................................................... 1-7

1.3.6 Printable Area ......................................................................................................................... 1-9

1.3.7 Adjust Lever.......................................................................................................................... 1-12

1.3.8 Ink Specification...................................................................................................................1-13

1.3.9 Input Data Buffer .................................................................................................................. 1-13

1.3.10 Electric Specifications ....................................................................................................... 1-14

1.3.11 Environmental Conditions.................................................................................................1-14

1.3.12 Reliability............................................................................................................................. 1-15

1.3.13 Safety Approvals ................................................................................................................ 1-15

1.3.14 CE Marking.......................................................................................................................... 1-15

1.3.15 Acoustic Noise.................................................................................................................... 1-15

1.3.16 Physical Specification........................................................................................................ 1-15

1.4 Interfaces.............................................................................................................1-16

1.4.1 Parallel Interface................................................................................................................... 1-16

1.4.2 Mac Serial Interface.............................................................................................................. 1-20

1.4.3 Optional Interface.................................................................................................................1-21

1.4.4 Prevention Hosts from Data Transfer Time-out.................................................................1-22

1.4.5 Interface Selection................................................................................................................ 1-22

1.4.6 Printer language ................................................................................................................... 1-22

1.5 Operation.............................................................................................................1-23

1.5.1 Control Panel ........................................................................................................................ 1-23

1.5.2 Default Setting ...................................................................................................................... 1-26

1.5.2.1 Setting Method ........................................................................................................ 1-26

1.5.2.2 Setting Menu ...........................................................................................................1-27

1.5.3 Printer Adjustment Mode..................................................................................................... 1-29

1.5.4 Printer Initialization .............................................................................................................. 1-30

1.5.5 Self-test Printing Mode ........................................................................................................ 1-30

1.5.6 Hexadecimal Dump Function..............................................................................................1-30

1.5.7 Monochrome Printing Mode................................................................................................ 1-30

1.5.8 Error Condition.....................................................................................................................1-31

1.6 Main Components...............................................................................................1-32

1.6.1 C203 MAIN Control Board.................................................................................................... 1-32

1.6.2 C172 PSB/PSE Board...........................................................................................................1-33

1.6.3 Control Panel ........................................................................................................................ 1-33

1.6.4 Printer Mechanism Unit ....................................................................................................... 1-33

1.6.5 Housing ................................................................................................................................. 1-33

EPSON Stylus COLOR 3000

1.1 Overview

The EPSON Stylus COLOR 3000 is a high-performance color ink jet printer des igned f or the off ice market as well as for plotter use with a wide paper availability up to full A2 size. The m ain features of this printer are:

Paper availability in wide range

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A-2 (ANSI C-size) paper supported

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Printable area 410 mm (width) (A-2 /ANSI C-size paper)

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Left and right margin 5 mm (A2-size paper)

0.5 inch (C-size paper)

Paper handling with ease

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Built-in ASF with a wide paper page capability (up to C-size portrait) and high capacity This ASF holds: 100 cut sheets (55g/m

10 envelops 30 transparency films 70 special paper *(up to A3) 30 special paper *(Super A3 or larger)

∗:360 dpi ink jet paper, photo quality ink jet paper.

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Roll paper Fed with a high accuracy making no skew

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Push tractor for the office use (for pre-printed continuous paper)

High Speed Printing

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LQ mode 400 cps at 10 cpi

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Draft mode 800 cps at 10 cpi

2 interfaces built-in and 1 optional interface card

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Mac serial interface (up to approximately 900 kbps/1.8 Mbps)

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Bi-directional parallel interface (IEEE1284 level 1 device)

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Optional Type-B interface card

High print quality for color graphics

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High Resolution 1440 (H) X 720 (V) dpi printing

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4 color printing Cyan, Magenta, Yellow, Black

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Printing Method Traditional and new micro weave printing

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Smaller dot diameter for image improvement

4 scalable fonts and 5 LQ fonts

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Scalable fonts Roman T, Sans Serif H, Roman, Sans Serif

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LQ fonts Roman, Sans Serif, Courier, Prestige, Script (LQ)27

27 usable character tables

Italic, PC437, PC850, PC860, PC861, PC863, PC865, BRASCII, Abicomp, Roman 8, ISO Latin 1, PC437 Greek, PC852, PC853, PC855,PC857, PC866, PC869, MOZOAWIA, Code MJK, ISO 8559-7,

Rev. A

Figure 1-1. Exterior View of the EPSON Stylus COLOR 3000

1-1

Product Descriptions

1.2 Options and Consumables

Table 1-1. Options and Consumables

Model Description

Serial Interface Cards

C82305∗/C82306∗ C82307∗/C82308∗

Parallel Interface Cards

C82310∗ C82345∗ C82313∗ C82314∗ C82315∗ C82312∗ C82331∗ C823311 Ethernet interface card (Multi-protocol) C823401 Ether Talk interface card C823431 Ethernet interface card (Netware)

Parallel Interface Cables

C83602∗

C83603∗/C83604∗

C83605∗/C83606∗

C81101∗

Ink Cartridges

S020118 Black ink cartridge S020122 Yellow ink cartridge S020126 Magenta ink cartridge S020130 Cyan ink cartridge

EPSON Special Media

S041059 / S041025 EPSON 360 dpi ink jet paper (A4)

S041060 EPSON 360 dpi ink jet paper (Letter) S041065/S041046 EPSON 360 dpi ink jet paper (A3) S041066/S041647 EPSON 360 dpi ink jet paper (Super A3/B)

S041078 EPSON 360 dpi ink jet paper (A2)

S041061 / S041026 EPSON photo quality ink jet paper (A4)

S041062 EPSON photo quality ink jet paper (Letter) S041067/S041048 EPSON photo quality ink jet paper (Legal) S041068/S041045 EPSON photo quality ink jet paper (A3) S041070/S041044 EPSON photo quality ink jet paper (B) S041069/S041043 EPSON photo quality ink jet paper (Super A3/B)

S041079 EPSON photo quality ink jet paper (A2)

S041054 EPSON photo quality ink jet card (A6)

S041121 EPSON photo quality ink jet card (5 X 8 inch)

S041122 EPSON photo quality ink jet card (8 X10 inch)

Serial interface card 32 KB serial interface card

32 KB parallel interface card 32 KB Bi-directional parallel interface card IEEE-488 interface card Coax interface card Twinax interface card LoacalTalk™ interface card Ethernet interface card

Parallel interface cable (shielded) from D-SUB 25-pin (computer) to Amphenol 57 (printer) Serial interface cable from D-SUB 25-pin (computer) to D-SUB 25-pin (printer) Serial interface cable from D-SUB 9-pin (computer) to D-SUB 25-pin (printer) Banner paper holder with cutting guide

(Banner Paper Kit)

Rev. A

EPSON Stylus COLOR 3000

Table 1-2. Options and Consumables (continued)

Model Description

S041071 EPSON photo quality glossy film (A4) S041072 EPSON photo quality glossy film (Letter) S041107 EPSON photo quality glossy film (A6) S041073 EPSON photo quality glossy film (A3) S041075 EPSON photo quality glossy film (B) S041074 EPSON photo quality glossy film (Super A3/B) S041126 EPSON photo quality glossy paper (A4) S041124 EPSON photo quality glossy paper (Letter) S041125 EPSON photo quality glossy paper (A3) S041123 EPSON photo quality glossy paper (A2) S041063 EPSON ink jet transparencies (A4) S041064 EPSON ink jet transparencies (Letter) S041106 EPSON photo quality self adhesive sheet (A4) S041103 EPSON 360 dpi ink jet banner paper S041102 EPSON photo quality banner paper S041132 EPSON ink jet canvas S041131 EPSON back light film (A3) S041130 EPSON back light film (A2)

Note) The asterisk is a substitute for the last digit of the product number.

Rev. A

Product Descriptions

1.3 Specification

This section provides detailed information on the EPSON Stylus COLOR 3000.

1.3.1 Printing Specifications

Print method

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Nozzle configuration

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32/360 inch

On demand Ink jet Monochrome 128 nozzles (32 x 4 staggered)

Color (magenta, cyan, yellow) 64 nozzles (32 x 4 staggered, each

color)

320/360 inch

144/360 inch

#127#128

32/360 inch

#125#126

32/360 inch

144/360 inch

#64

32/360 inch

#63

144/360 inch

#64

#63

32/360 inch

#64

#63

#2 #3#4#1

Black

Print direction

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Print speed and printable columns

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Bi-directional with logic-seeking

Table 1-3. Print Speed and Printable Columns for Character Mode

Character Pitch Printable Columns Draft Speed LQ Speed

10 cpi (Pica) 161 800 cps 400 cps 12 cpi (Elite) 193 960 cps 480 cps 15 cpi 242 1200 cps 600 cps

17.1 cpi (Pica condensed) 276 1368 cps 684 cps 20 cpi (Elite condensed) 322 1600 cps 800 cps

Table 1-4. Print Speed and Printable Area for Raster Graphic Mode

Print Mode Printable Area Available Dot CR Speed

180 dpi X 180 dpi 16.37 inch 2947 40 ips 360 dpi X 360 dpi 16.37 inch 5893 20 ips 720 dpi X 720 dpi 16.37 inch 11786 20 ips 1440 dpi X 720 dpi *

*1 Printing at 1440 X 720 dpi is available only using driver microweave. *2 Can be printed by sending following command sequence.

1. Set print speed to 10 ips.

2. Print a 180 X 720 raster image.

3. Advance the paper using an increment of 31/720 inch.

4. Move the print position horizontally using an increment of 1/1440 inch.

5. Print a 180 X 720 raster image.

6. Advance the paper using an increment of 31/720 inch.

7. Repeat steps 2 to 6

Cyan

Paper feed direction

Figure 1-2. Nozzle Configuration

16.37 inch

11786*

Magenta

Yellow

10 ips

Rev. A

1.3.2 Control codes

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ESCP/2 and expanded raster graphics code

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EPSON Remote command

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IBM XL24E emulation

1.3.3 Character tables

Legal and 14 international character sets

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Standard version (27 character tables)

Italic table PC 437 (US, Standard Europe) PC 850 (Multilingual) PC 860 (Portuguese) PC 861 (IceLandic) PC 863 (Canadian-French) PC 865 (Nordic) Abicomp BRASCII Roman 8 ISO Latin 1 PC 437 (Greek) PC 852 (East Europe) PC 853 (Turkish) PC 855 (Cyrillic) PC 857 ( Turkish) PC 866 (Russian) PC 869 (Greek) MOZOAWIA (Poland) Code MJK (CSFR) ISO 8559-7 (Latin, Greek) ISO Latin 1T (Turkish) Bulgaria (Bulgaria) PC 774 Estonia ISO 8859-2 (ISO Latin 2) PC 866 LAT

EPSON Stylus COLOR 3000

Typeface

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Bit map LQ font

EPSON Roman 10 cpi, 12 cpi, 15 cpi, Proportional EPSON Sans Serif 10 cpi, 12 cpi, 15 cpi, Proportional EPSON Courier 10 cpi, 12 cpi, 15 cpi, EPSON Prestige 10 cpi, 12 cpi, 15 cpi, EPSON Script 10 cpi, 12 cpi, 15 cpi

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Scalable font

EPSON Roman 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments) EPSON Sans Serif 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments) EPSON Roman T 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments) EPSON Sans Serif H 10.5 pt.; 8 pt. − 32 pt. (2 pt. increments)

Note) Each typeface has 4 variations:

Normal, Bold, Italic, and Bold Italic

An example of variations for Epson Roman is as follows:

Epson Roman normal Epsom Roman bold Epson Roman italic Epson Roman bold italic

Rev. A

Product Descriptions

Combination of character tables and typefaces

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Table 1-5. Character Tables and Fonts

Bitmap Fonts Scalable Fonts Scalable Fonts

Character Tables

(Standard version)

Italic table PC 437 (US Standard Europe) PC 850 (Multilingual) PC 860 (Portuguese)) PC 861 (Icelandic) PC 863 (Canadian-French) PC 865 (Nordic) BRASCII Abicomp Roman 8 ISO Latin 1 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

EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script

Supported Supported Supported

Supported Supported

EPSON Roman EPSON Sans Serif

EPSON Roman T EPSON Sans Serif H

Not

Supported

1.3.4 Paper Feeding

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Paper transport method Friction feed with built-in auto sheet feeder (ASF)

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Line spacing 1/6, 1/8 inch or programmable at 1/360 inch

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Paper path

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Cut-sheet ASF (Front entry)

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Continuous paper Rear tractor

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Feeding speed 100 ms per line (1 line = 1/3 inch)

4.0 inches per second

Rev. A

EPSON Stylus COLOR 3000

)

1.3.5 Paper Handling

Cut Sheet

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Table 1-6. Cut Sheet Specification

Width Length

Statement 139.7 mm (5.5”) 215.9 mm (8.5”)

A5 148 mm (5.8”) 210 mm (8.3”) B5 182 mm (7.2”) 257 mm (10.1”)

Executive 184.2 mm (7.3”) 266.7 mm (10.5”)

A4 210 mm (8.3”) 297 mm (11.7”)

Paper Letter 215.9 mm (8.5”) 279.4 mm (11.0”)

Legal 215.4 mm (8.5”) 355.6 mm (14.0”)

B4 257 mm (10.1”) 364 mm (14.3”)

ANSI B 279.4 mm (11”) 431.8 mm (17”)

A3 297 mm (11.7”) 420 mm (16.5”)

A3 wide 329 mm (13.0”) 483 mm (19.0”)

A2 420 mm (16.5”) 594 mm (23.4”)

ANSI C 431.8 mm (17.0”) 558.8 mm (22.0”)

Paper Thickness 0.08 mm (0.0031”) to 0.15 mm (0.0059”

Paper Weight ASF 64 g/ m2 (17 lb.) to 90 g/ m2 (24 lb.)

Manual insertion 52 g/ m2 (14 lb.) to 90 g/ m2 (24 lb.)

Quality Exclusive paper, Bond paper, PPC

Note)

1. Be sure to use the designated face of exclusive paper.

2. Make sure that the paper has no crease, curl, harshness or rip.

3. When placing paper in ASF, be sure not to overload it so that the paper will not dislocate. At manual insertion, place the paper using the mark on the case for basis and insert it until it meets resistance.

Transparency

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Table 1-7. Transparency Specification

Width Length

Size

Paper Thickness 0.075 mm (0.003”) to 0.085 mm (0.0033”

A4 210 mm (8.3”) 297 mm (11.7”) Letter 215.9 mm (8.5”) 279.4 mm (11.0”)

Note)

1. Transparency printing is only available at normal temperatures.

2. Transparency paper must be printed on the designated side.

Envelope

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Table 1-8. Envelope Specification

Width Length

Size No.10 241.3 mm (9 1/2”) 104.8 mm (4 1/8”)

DL 220 mm (8.7”) 110 mm (4.3) C5 229 mm (9”) 162 mm (6.4”)

Paper Thickness 0.16 mm (0.006”) to 0.52 mm (0.02” Paper Weight 45 g/m2 (12 lb.) to 90 g/ m2 (24 lb.)

Quality Bond paper, Plain paper, Airmail

Note)

1. Envelope printing is only available at normal temperatures.

2. Place the longer side of the envelope horizontally when setting.

Rev. A

Product Descriptions

)

Index Card

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Table 1-9. Index Card Specification

Size A6 index card 105 mm (4.1”) (width) 148 mm (5.82”) (length)

Paper Thickness 0.23 mm (0.0091”) or less

Note) Make sure that the paper has no crease, curl, harshness or rip. Note) Label must be printed at normal room temperature.

Labels (Cut Sheet)

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Table 1-10. Label Specification

Width Length

Size A4 210 mm (8.3”) 297 mm (11.7”)

Letter 216 mm (8.5”) 279 mm (11.0”)

Paper Thickness 0.2 mm (0.0079”) or less (including base sheet Quality Label for page printer

Note) Label must be printed at normal room temperature. Note) Make sure that the sheet has no crease, curl, harshness or rip.

Continuous Paper

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Table 1-11. Continuous Paper Specification

Size Width 101.6 mm (4”) to 406.4 mm (16”)

Folding length 101.6 mm (4”)

Paper Thickness 0.065 mm (0.0026”) to 0.11 mm (0.0043” Paper Weight 52 g/ m2 (14 lb.) to 82 g/ m2 (22 lb.)

Note) Make sure that the sheet has no crease, curl, harshness or rip.

Labels (Continuous)

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Table 1-12. Label (Continuous) Specification

Base sheet Width 101.6 mm (4”) to 406.4 mm (16”)

Size Folding length 101.6 mm (4”)

Label Width 63.5 mm (2.5”)

Length 23.9 mm (0.94”)

Paper Thickness 0.02 mm (0.0079”) or less (including base sheet

0.12 mm (0.0047”) or less (label only)

Quality Plain paper

Note) Label (continuous) must be printed at normal room temperatures. Note) Make sure that the sheet has no crease, curl, harshness or rip.

Banner

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Table 1-13. Banner Specification

Size Width Length

210 mm (8.3) to 432 mm (17.0”) 5.0 m or less (196.9”)

Paper Thickness 0.08 mm (0.0031”) to 0.1 mm (0.0039” Paper Weight 64 g/m2 (17 lb.) to 82 g/ m2 (22 lb.)

Quality Plain paper

Rev. A

1.3.6 Printable Area

Cut Sheet / Label (cut sheet)

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EPSON Stylus COLOR 3000

LM RM

Printable Area

Figure 1-3. Printable Area for Cut Sheet

Table 1-14. Minimum Margins for Different Cut Sheet Sizes

Paper width Left margin Right margin Top margin Bottom margin

Up to 420 mm (16.5”) 420 mm (16.5”) A3 landscape

3 mm (0.12 inch) 5 mm (0.20 inch)

3 mm (0.12 inch) 5 mm (0.2 inch)

3 mm (0.12 inch) 3 mm (0.12 inch)

14 mm (0.54 inch) 14 mm

(0.54 inch) A2 432 mm(17.02) ANSI B landscape

5 mm (0.20 inch)

11 mm (0.43 inch)

3 mm (0.12 inch)

14 mm

(0.54 inch) ANSI C

Rev. A

Product Descriptions

Envelope

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Left Margin

(minimum)

3 mm

(0.12”)

Printable area

Figure 1-4. Printable Area for Envelopes

Table 1-15. Minimum Margin for Envelope

Right Margin

(minimum)

Top Margin

(minimum)

3 mm

(0.12”)

3 mm

(0.12”)

Bottom Margin

(minimum)

14 mm (0.55”)

1-1

Rev. A

Continuous Paper / Label (Continuous Paper)



EPSON Stylus COLOR 3000

More than

3 mm (0.12 ")

Perforation

More than

13 mm (0.51") *1

Printable are 1

Printable area 2

Printable are 1

Printable area 2

Printable are 1

More than

13 mm (0.51") *1

More than

12.5 mm (0.49")

More than 9 mm (0.35") More than 9 mm (0.35")

Printable area 2

Printable are 1

More than 14 mm (0.55")

Perforation

Printable Area 1: Paper feed pitch is not guaranteed in this area.

Printable Area 2: Paper feed pitch is guaranteed in this area.

Perforation

*1 : When the paper width is more than 406.4 mm (16"), this width is more than 38 mm (1.50").

Figure 1-5. Printable Area for Continuous Paper

Note) Base sheet of label (continuous) is not printing area.

Perforation

More than 134 mm (5.28")

Rev. A

1-1 1

Product Descriptions

1.3.7 Adjust Lever

The adjust lever, located at the right and upper side in the printer cover, is used to adj ust the gap between the paper and platen. The adjust lever must be set to the proper pos ition according to the paper type to avoid ink smudging caused by ink’s contact with paper.

Table 1-16. Adjust Lever Position

Paper Type Lever Position

Cut sheet Transparency Continuous paper Envelopes Index card

Far side (0) 0 mm

Near side (1) + 0.7 mm

Platen Gap Adjustment

Value

PG Adjust Lever

Printer Cover

Figure 1-6. Adjust Lever Settings

1-1

Rev. A

EPSON Stylus COLOR 3000

1.3.8 Ink Specification

Black ink cartridge

Table 1-17. Black Ink Cartridge Specifications

Black Ink Cartridge

Type Exclusive ink cartridge Color Black Print capacity 3800 pages / A4 (ISO/IEC10561 Letter Pattern at 360 dpi) Ink life 2 years from indicated production date Storage Temperature

At storage -20 °C to 40 °C (-4 to 104°F) At packing storage -30 °C to 40 °C (-22 to 104°F) At transit (Packed) -30 °C to 60 °C (-22 to 140°F)

Dimension 25.1 mm (W) X 139.6 mm (D) X 105.3 mm (H)

(1.22” X5.49” X4.14”)

*1 The cartridge must not be kept at 40 °C (104 °F) for more than a month. *2 The cartridge must not be kept at 60 °C (140°F) for more than 120 hours.

Note)

1. The cartridge must not be refilled. The ink cartridge is a consumable item.

2. Do not use the cartridge whose ink life has expired.

3. When the ink freezes below -4°C (23°F); it will be usable again after keeping it for more than 3 hours at room temperature.

* 1

*1 *1*2

Color ink cartridge

Table 1-18. Color Ink Cartridge Specifications

Color Ink Cartridge

Type Exclusive ink cartridge Color Magenta, Cyan, Yellow Print capacity 2100 pages A4 (at 360 dpi, 5 % duty each color) Ink life 2 years from indicated production date Storage Temperature

At storage -20 °C to 40 °C (-4 to 104°F) At packing storage -30 °C to 40 °C (-22 to 104°F) At transit (Packed) -30 °C to 60 °C (-22 to 104°F)

* 1

*1 *1*2

Dimension 25.1 mm (W) X 139.6 mm (D) X 105.3 mm (H)

(0.98”X5.49” X 4.14”)

*1 The cartridge must not be kept at 40 °C (104 °F) for more than a month. *2 The cartridge must not be kept at 60 °C (140°F) for more than 120 hours.

Note)

1. The cartridge must not be refilled. The ink cartridge is a consumable item.

2. Do not use the cartridge whose ink life has expired.

3. When the ink freezes below -4°C (23°F); it will be usable again after keeping it for more than 3 hours at room temperature.

1.3.9 Input Data Buffer

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Input data buffer :64 Kbytes

Rev. A

1-1

Product Descriptions

1.3.10 Electric Specifications

120 V version

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Rated voltage AC 120 V

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Input voltage range AC 103.5 to 132 V

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Rated frequency renege 50 to 60 Hz

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Input frequency range 49.5 to 60.5 Hz

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Rated current 0.7 A (maximum)



Power consumption Approximately 21 W (ISO/IEC 10561 Letter pattern)

Energy Star program compliant



Insulation resistance 10 M ohms min. (Between AC line and chassis, 500 VDC)



Dielectric strength AC 1,000 V rms. For 1 minute or

AC 1,200 V rms. For 1 second (Between AC line and chassis)

220 - 240V version



Rated voltage AC 220 to 240 V



Input voltage range AC 198 to 264 V



Rated frequency renege 50 to 60 Hz



Input frequency range 49.5 to 60.5 Hz



Rated current 0.4 A (maximum)



Power consumption Approximately 21 W (ISO/IEC 10561 Letter pattern)

Energy Star program compliant



Insulation resistance 10 M ohms min. (Between AC line and chassis, DC 500 V)



Dielectric strength AC 1,500 Vrms. For 1 minute (Between AC line and chassis)

1.3.11 Environmental Conditions

Temperature



Operating*



Non operating*

Humidity



Operating*



Non operating*

Resistance to vibration



Operating 0.15 G



Non-operating*

Resistance to shock



Operating 1 G within 1 ms



Non-operating*

*1 :Refer to the table below for guaranteed range. *2 :In shipment container.

10°C to 35°C

-20°C to 60°C 1 month at 40 °C (104 °F) 120 hours at 60 °C (140 °F)

20% to 80% RH (without condensation)

Humidity (%)

5% to 85% RH (without condensation)

0.50 G

2 G within 2 ms

Operating Environment

Temperature ( C)

Figure 1-7. Environmental Conditions

1-1

Rev. A

1.3.12 Reliability



Total print volume 75,000 pages (A3)



Print head life 2,000 million dots /nozzle

1.3.13 Safety Approvals

120 V version



Safety standards UL1950 with D3

CSA22.2 No. 950 with D3



EMI FCC part15 subpart B class B

CSA C108.8 class B

220 - 240 V version



Safety standards EN 60950 (VDE, NEMKO)



EMI EN 55022 (CISPR Pub.22) class B

AS/NZS 3548 class B

1.3.14 CE Marking

220 - 240 V 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

EPSON Stylus COLOR 3000

1.3.15 Acoustic Noise



Noise level Approximately 45 dB (A) (According to ISO 7779)

1.3.16 Physical Specification



Weight 22.5 Kg



Dimension 810 mm (W) X 565 mm (D) X 240 mm (H)

(31.9” X 22.2” X 9.4”)

Refer to Appendix for details.

Rev. A

1-1

Product Descriptions

1.4 Interfaces

The EPSON Stylus COLOR 3000 is equipped with the parallel and Mac serial interfaces and a card slot for an optional Type-B interface. This section provides information on each interface.

1.4.1 Parallel Interface

Forward Channel

Transmission mode



Synchronization



Handshaking



Signal level



Adaptable connector



Table 1-19. Signal level of TTL Compatible (IEEE-1284 level 1 device)

Parameter Minimum Maximum Condition

VOH* - 5.5 V VOL* -0.5 V IOH* - 0.32 mA VOH = 2.4 V IOL* - 12 mA VOL = 0.4 V CO - 50 pf VIH - 2.0 V VIL 0.8 V IIH - 0.32 mA VIH = 2.0 V IIL - 12 mA VIL = 0.8 V CI - 50 pf

∗ A LOW logic level on the Logic H signal is as follows:

2.0 V or less when the printer is powered off.

3.0 V or more when the printer is powered on. The receiver provides an impedance equivalent to 7.5 K ohms to ground.

8 bit parallel, IEEE-1284 compatibility mode By /STROBE pulse By /BUSY and /ACKNLG signal TTL compatible 57-30360 (Amphenol) or equivalent

The BUSY signal is set HIGH before setting either /ERROR LOW or PE HIGH and held HIGH until all these signals return to an inactive state. The BUSY signal is HIGH in the following cases:



During data entry.



When the input data buffer is full.



While /INIT signal is at low level or during hardware initialization.



During a printer error condition (See /ERROR signal).



During test printing.



When the printer is in default setting mode.



When the parallel interface is not selected.

The /ERROR signal is LOW when one of the following errors has occurred:



Printer hardware error (fatal error)



Paper-out error



Paper-jam error



Ink-out error

The PE signal is high level during paper-out error.

1-1

Rev. A

EPSON Stylus COLOR 3000

DATA

STORBE

0.5 us (min.)

BUSY

ACKNLG

DATA (n)

0.5 us (min.)

0 (min.)

DATA (n+1)

0 (min.)

5 us (type.)

Figure 1-8. Data Transmission Timing

Table 1-20. Data Transmission Timing

Parameter Minimum Maximum

tsetup 500 ns thold 500 ns tstb 500 ns tready 0 tbusy - 500 ns tt-out - 120 ns tt-in - 200 ns treply - tack*** 500 ns 10 us tnbusy 0 tnext 0 -

Note) tt-out shows the rise and fall time of every output signal.

tt-in shows the rise and fall time of every input signal. Typical time of tack is shown in Table 1-21.

Rev. A

Table 1-21. Typical Time of Tuck

Parallel I/F transfer rate Typical time of tuck

Fast 1us Normal 3us

1-1

Product Descriptions

Table 1-22 shows the connector pin assignment and signals for forward channel of the parallel interface.

Table 1-22. Connector Pin Assignments and Signals (Forward Channel)

Pin No. Signal Name

1 /STROBE 19 I

2-9 DATA 0-9 20-27 I

10 /ACKNLG 28 O

11 BUSY 29 O

12 PE 28 O

13 SLCT 28 O 14 /AFXT 30 I Not used.

31 /INIT 30 I

32 /ERROR 29 O 36 /SLIN 30 I Not used.

18 Logic H - O Pulled up to +5V via 3.9 K-ohm resistor. 35 +5V - O Pulled up to +5V via 3.3 K-ohm resistor. 17 Chassis GND - - Chassis ground.

16,33,19-30 GND - - Signal ground.

15,34 NC - - Not connected.

Return

GND Pin

I/O Description

The strobe pulse. Read-in of data is performed at the falling edge of this pulse.

The data 0 to data 7 signals represent data bits 0 to 7, respectively. Eac h signal is at a HIGH level when data is logical 1 and a LOW level when data is logical 0.

This signal is a negative pulse indicating that the printer can again accept data.

When this signal is at a HIGH level, the printer is not ready to accept data.

When this signal is at a HIGH level, the paper empty status is detected.

Always at a HIGH level when the printer is powered on.

The falling edge of a negative pulse or a LOW signal on this line caus es the printer to initialize. Minimum 50 us pulse is necessary.

When the printer detects an error, this signal goes LOW.

Note)

1. */* at the beginning of a signal means active low.

2. The I/O column indicates the direction of the signal as viewed form the printer.

1-1

Rev. A

EPSON Stylus COLOR 3000

Reverse Channel

Transmission mode



Adaptable connector



Synchronization



Handshaking



Data transmission timing



Signal level



Table 1-23 shows the connector pin assignment and signals for reverse channel of the parallel interface.

Table 1-23. Connector Pin Assignment and Signals (Reverse Channel)

IEEE-1284 nibble mode Same as forward channel Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification IEEE-1284 level 1 device

See forward channel.

Pin No. Signal Name

1 HostClk 19 I Clock signal from the host computer.

2-9 DATA 0-7 20-27 I

10 PtrClk 28 O Clock signal from the printer 11

13 Xflag/Data bit 1,5 28 O 14 HostBusy 30 I Busy signal from the host computer

31 /INIT 30 I Not used 32

36 1284-Active 30 I 1284 active signal. 18 Logic-H - O Pulled up to +5V via 3.9 K-ohm resistor. 35 +5V - O Pulled up to +5V via 3.3 K-ohm resistor. 17 Chassis GND - - Chassis ground for the printer.

16,33,19-30 GND - - Signalground.

15,34 NC - - Not connected.

PtrBusy / Data bits 3,7 AckDatareq /

AckData Bits 2,6

/Data Avail / Data bits 0,4

Return

GND Pin

29 O

28 O

29 O

I/O Description

These signals represent parallel data on bits 2 to 9. Each signal is High when the data is logical 1 and LOW when the data is logical 0.

Busy signal from the printer. Data bit 3 or 7 in reverse channel. Acknowledge request signal. Data bit 2 or 6 in reverse channel. X flag signal. Data bit 1 or 5 in reverse channel.

Data available signal. Data bit 0 or 4 in reverse channel.

Note)

1. */* at the beginning of a signal means active low.

2. The I/O column indicates the direction of the signal as viewed form the printer.

Extensibility Request



The printer responds affirmatively when the extensibility request values are 00H or 04H, as follows:



00H Request Nibble Mode Reverse Channel Transfer.



04H Request Device ID using Nibble Mode Rev Channel Transfer

Device ID



The printer sends following device ID string upon request:



[00H] [xxH]



MFG EPSON;



CMD ESCPL2, PRPXL, BDC;



MDL Stylus [SP]COLOR[SP] 3000;



CLS PRINTER;

Note) [00H] denotes a hexadecimal values of zero.

Rev. A

1-1

Product Descriptions

1.4.2 Mac Serial Interface

Standard



Synchronization



Bit rate



Word format



Handshaking



Adaptable connector



Recommended I/F cable



Pin No. Signal Name I/O Function Description

1 SCLK O Synchronous clock 2 CTS I Clear to send 3 TxD- O Transmit data 4 S.G. I Signal Ground 5 RxD- I Receive data 6 TxD+ O Balanced Transmit + 7 DTR O Data terminal ready 8 RxD+ I Balanced Receive +

Table 1-24. Connector Pin Assignment for Serial Interface

RS-423 compliant Synchronous Approximately 900 Kbps, 1.8 Mbps Start bit 1 bit

Data bit 8 bit Parity bit No parity bit Stop bit1 bit

X-ON/XOFF, DTR protocol 8-pin mini circular connector Apple System Peripheral-8 cable

Table 1-25. X-ON/X-OFF, DTR Protocol

State Buffer space X-ON/X-OFF DTR

Busy Less than 1024 bytes Send X-OFF code Off

Ready More than 2048 bytes Send X-ON code On

Figure 1-9.

Serial Interface Connector Pin Assignment

1-2

Rev. A

EPSON Stylus COLOR 3000

1.4.3 Optional Interface

The EPSON Stylus COLOR 3000 supports an optional Type-B interface (Level 2) with the following characteristics.

Reply message

In case of using Co-ax / Twin-ax I/F card



When ESC/P2 is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma,



Product name Stylus COLOR 3000



Emulation type ESCPL2-00



Entity type EPSONLQ2



When XL24E is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma,



Product name Stylus COLOR 3000



Emulation type PRPXL24-00



Entity type EPSONPRPXL24

In case of using an I/F card other than Co-ax / Twin-ax I/F card



When ESC/P2 is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast



Product name Stylus COLOR 3000



Emulation type ESCPL2-00



Entity type EPSONLQ2



When XL24E is selected:



Main type MTP48p, PW161cl10cpi, PRG(W0xxxx)rev, AP800ma, SPD0fast



Product name Stylus COLOR 3000



Emulation type PRPXL24-00



Entity type EPSONPRPXL24

Table 1-26.Reply for Option Command

Option command No. command name Reply-A Reply-B

00h No Operation Accept None 01h Start Hard Ware Reset Accept Excute OK 02h Start Soft Ware Reset Reject 03h Send Main System Type Accept 04h Send Name Data Reject 05h Inquire Name Data Accept 06h Send Product Name Accept 07h Send Soft Ware Emulation Type Accept 08h Complete Buffered Data Accept Check Condition 09h Stop Procedure Reject Execute OK 0Ah Return Buffered Data Reject

0Bh Send Entity Type Accept 0Ch Send Status Accept 0Dh Quit Procedure Reject

0Eh Inquire ASCII Message Reject

0Fh Send ASCII Message Accept None

10h - 13h Unknown None

14h Inquire Emergency Message Accept Execute OK

15h Send Emergency message Accept

16h - 1Fh Unknown None 20h - FFh Reserved None

Rev. A

1-21

Product Descriptions

Table 1-27. Supported Main Command and Sending Timing

Main Command Command name Sending Timing

01h Start Software Reset

04h Send Name Data

07h Inquire Software Emulation Name 0Eh Inquire ASCII Message 14h Inquire Emergency Reply 15h Send Emergency Message

Emergency Command



0X00 :Get device ID



0X01 :Get all status

Sending BDC-ST through DBIN register



When State-Reply is set “ON” by ST from Type-B I/F, sending BDC-ST through DBIN register is started. When State-Reply is started, “Start” and “End” of BDC-ST characters are announced by sending the Main command 0Eh.



/INIT signal on the standard parallel I/F



Type-B I/F option command : 01h



Cold Start



Type-B I/F command : 05h



Changing software Emulation Type



Writing to DBIN register



Reply for Emergency command



Receive Emergency Command

1.4.4 Prevention Hosts from Data Tr ansfer Time-out

Generally, hosts abandon data transfer to peripherals when a peripheral is BUSY continuously for dozens of seconds. To prevent this kind of time-out, the printer receives data very slowly, several bytes par minute, even the printer is in a busy state. This slowdown starts when the rem ainder of input buffer dr ops under several hundreds of bytes. Finally, the printer is BUSY continuously when the input buffer is full.

1.4.5 Interface Selection

The EPSON Stylus COLOR 3000 has three types of interfaces: Parallel, Serial, and optional Type-B. Each interface can be selected m anually or automatically. Both modes are selected thorough the def ault s etting mode.

Manual selection



The interface selected through the default setting mode always prints out data from the host.

Automatic selection



Automatic interface selection is enabled in default setting mode. In automatic interface selection mode, the printer is initialized to the idle state when it is powered on (*1) scanning which interfac e is to receive data. Then the interface that rec eived data firs t is selec ted. When the host s tops data trans fer and the printer is in the standby state for a number of seconds , the printer returns to the idle state. As long as the host sends data or the printer interface is busy state, the selected interface is left as it is.

*1 No interface is selected in this state.

Interface State and Interface Selection



When an interface other than the parallel interface is selected, the parallel interface goes into the BUSY state.



When the interface other than serial interface is selected, the serial interface sets the DTR signal MARK.



When the printer is initialized and returned to idle state, the parallel interface goes into ready state and the serial interface sets the DTR signal SPACE.

Note) An interrupt signal such as the INIT on the parallel interface is ignored while that interface is not

selected.

1.4.6 Printer language



ESC/P2



IBM XL24E



EPSON Remote

1-2

Rev. A

EPSON Stylus COLOR 3000

1.5 Operation

This section describes the functions of each button on the control panel and LED printer status indicators.

1.5.1 Control Panel

The control panel for this printer consists of 8 non-lock pushbuttons , 1 lock type pushbutton, and 13 LED printer indicators for easy operation of the various printer functions. Refer to Figure 1-10.

Pause

Reset

5 Sec.

Operate

Paper Out

Ink Out

LF/FF

Load/Eject

Yellow Magenta

Cyan Black

Micro Adjust

Figure 1-10. Control Panel Appearance

Cleaning

3 Sec.

Media Type

Plain Paper 360 dpi Ink Jet Printer Photo Quality Ink Jet Paper Photo Quality Glossy Film Ink Jet Transparencies Other Media Selection Off

Cleaning

3 Sec.

Rev. A

1-2

Product Descriptions

Panel Functions (Normal Usage)



Table 1-28. Panel Functions

Button Function

Operate Power On/Off Always Pause Pause/Non-Pause Always

Pause (5 seconds) LF/FF LF/FF Pause/Standby Load/Eject Load/Eject Pause/Standby

↑ Micro Adjust Micro Adjust ↓ Cleaning (Black) (3 seconds) Cleaning (Color) (3 seconds) Media Type Selects paper type. Pause/Standby

Reset Pause/Standby

Micro adjust (Forward feed)

Micro adjust (Reverse feed)

Cleaning (Black) Pause/Standby Cleaning (Color) Pause/Standby

Available

Condition

Pause/Standby See Note below. Pause/Standby See Note below.

Note) TOF (Top Of Form) adjustment

When ”Micro adjust” is executed for the TOF position, the adjusted TOF position is memorized in the EEPROM. TOF positions for the ASF, manual insertion and tractor are stored in the corresponding addresses of EEPROM.

Tear off adjustment

When “Micro adjust” is executed for the tear off position, the adjusted tear off position is memorized in the EEPROM.

Comment

At turning the printer off, the printer executes capping function before the power down.

The function will be recognized with this button held down for more than3 seconds.

The function will be recognized with this button held down for more than 2 seconds. The function will be recognized with this button held down for more than 2 seconds.

Panel Functions with Power On



Table 1-29. Panel Function with Power On

Button Function Comment Pause Enters the printer adjustment mode. Refer to Section 1.5.3.

LF/FF Enters LQ self-test print mode. Refer to Section 1.5.5.

Load/Eject Enters draft-self test print mode. Refer to Section 1.5.5.

Media type Enters the default setting mode. Refer to Section 1.5.2.

LF/FF

Load/Eject

Pause

LF/FF

Micro adjust ↓

Enters the hex-dump mode. Refer to Section 1.5.6

Performs EEPROM and IC reset. Initializes Timer IC and a part of

the EEPROM.

Note) ”+” means to press one button while holding down the other button(s).

CAUTION



The power switch is connected to the secondary side of the electrical circuit. Since it has a delay circuit, voltage is still applied for the specified period of time after the printer power is turned off.



As long as the printer is plugged in, voltage is applied to the primary side of the electrical circuit. Therefore be sure to unplug the printer before servicing or replacing the interface.



When the EEPROM is reset, the waste ink drain pads need replacing. This must be performed by a qualified service person only. (See Chapter 3.)

1-2

Rev. A

EPSON Stylus COLOR 3000

Indicators



This printer has 13 LED printer indicators, as shown in Table 1-30:

Table 1-30. Printer Condition and Printer Status (1)

LED Color Indication Status

Operate Green On Power on

Blinks Capping function in the power off

Paper Out Red On Paper out

Blinks Paper is jamming.

Pause Orange On Pause

Blinks The printer is in the ink sequence.

Ink Out (Yellow) Red On No yellow ink cartridge or ink out

Blinks Ink low

Ink Out (Magenta) Red On No magenta ink cartridge or ink out

Blinks Ink low

Ink Out (Cyan) Red On No cyan ink cartridge or ink out

Blinks Ink low

Ink Out (Black) Red On No black ink cartridge or ink out

Blinks Ink low Media Type Media Type

    

Media Type

    

Media Type

   

Media Type

  

Media Type

 !" # $$

 

Note) Refer to Table 1-36 for more detailed conditions.

Green On Plain paper is selected. Green On 360 dpi Ink Jet Printer is selected.

Green On Photo Quality Ink jet Paper is selected.

Green On Photo Quality Glossy Film is selected.

Green On Ink jet transparencies is selected.

Green On Paper type selection is neglected.

Rev. A

1-2

Product Descriptions

1.5.2 Default Setting

Default setting mode enables users to c hange the default settings (initialization values). The set values are stored in the EEPROM and are not lost after the printer is turned off. To reset the values to the factory values, perform EEPROM reset operation or use the adjustment program described in Chapter 4.

1.5.2.1 Setting Method

See Figure 1-11 for the default setting method.

Start

Press the "Media Type" button while turning on the printer.

The printer prints how to select the language for "Usage of this mode" and firmware version number.

1.Move through the languages listed by pressing the "Micro Adjust " button.

2.Set the language by pressing the "Pause" button.

The printer prints the current setting and "Usage of this mode" in the selected language on the currently loaded paper.

YES

Change the settings?

Turn the printer off to save the new settings into the EEPROM.

Figure 1-1 1. Default Setting Flowchart

1. Select the menu by pressing the "Micro Adjust " button.

2. Select the value for the selected menu by pressing the "Media Type" button

More change?

YES

CAUTION

Be sure to turn the printer off after the default setting operation is executed, since adjustment



values are not stored in the EEPROM until the printer is turned off.



The latest values set before power-off are stored in the EEPROM.

1-2

Rev. A

1.5.2.2 Setting Menu

The printer enters default setting mode when you press the printer. The menus available are shown Table 1-31.

Table 1-31. Default Setting Menus

Print direction*

Font

Pitch I/F mode Auto I/F wait mode Software Auto CR (IBM mode only) A.G.M. (IBM mode only) Character tables

Standard version

International character set for Italic table

Auto line feed Network I/F mode This mode is for network environment.

0 slash Page length Skip over perforation Auto tear off Banner mode *

Parallel I/F transfer rate

Note) 1. Underlined parameters in bold letters are factory default settings.

2. Refer to Table 1-32 and Table 1-33.

3. Refer to Table 1-34.

Auto

/ Bi-d / Uni-D

Roman / Sans Serif /

Courier

Roman T / Sans Serif H / Draft

10 cpi Auto 10 seconds ESC/P2

On / On /

/ 12 cpi / 15 cpi / 17.1 cpi / 20 cpi / Proportional

/ Parallel / Mac Serial / Option

/ 30 seconds

/ IBM XL24E

Off Off

Italic

PC 437

, PC 850 PC 860, PC 863 PC 865, PC 861 BRASCII, Abicomp Roman 8, ISO Latin 1 PC 437 (Greek), PC 853 PC 855, PC 852 PC 857, PC 866 PC 869, MOZOAWIA Code MJK, ISO 8559-7 ISO Latin 1T, Bulgaria PC 774, Estonia ISO 8859-2, PC 866 LAT

Italic USA

, Italic France Italic Germany, Italic U.K Italic Denmark, Italic Sweden Italic Italy, Italic Spain 1

Off

On /

Off

: Used in usual environment

On: Used in network environment

/ 0 with slash

11 inch

On /

Fast

/ 12 inch / 8.5 inch / 70/6 inch / other

Off

/ Off

Off

/ Normal

Media Type

Setting *

/ Prestige / Script/

EPSON Stylus COLOR 3000

button while turning on the

Rev. A

1-2

Product Descriptions

Auto

Bi-D

Uni-D



Throughput and quality is better.



Throughput is the best.



Print quality may be down.



Throughput is worse.



Print quality is the best.

Table 1-32. Print Direction Mode Characteristics

Black and W hit e Pr inting YMCK Printing (color)



Throughput is better.



Color quality with special paper is worse. (Because Color correction depends on the print direction.)



Throughput is the best.



Color quality with special paper is worse. (Because Color correction depends on the print direction.)



Throughput is worse.



Color quality is the best.

Table 1-33. Printing Direction and ESC U Command

Character Mode

(for DOS)

ESC U 0 Auto Bi-D

Auto ESC U 1 Auto Uni-D

ESC U 2 Auto Auto



ESC U 0 Bi-D Bi-D

Default Bi-D ESC U 1 Uni-D Uni-D

Setting Mode ESC U 2 Auto Auto



ESC U 0 Uni-D Bi-D

Uni-D ESC U 1 Uni-D Uni-D

ESC U 2 Uni-D Auto



*: Printing direction is controlled by driver with Windows/Mac environment.

When the banner m ode is s elected by default setting or rem ote com mand, the f unction is as desc ribed in Table 1-34.

Table 1-34. Vertical Print Position in the Manual Insertion

Auto Auto

Bi-D Bi-D

Uni-D Uni-D

Raster Graphics Mode

(for Windows / Mac) *

Function

Trigger

Command FF 1. Case that page length is set by

2. Case that page length is not set

ESC EMR No operation No operation

Switch FF Eject Advances to the top-margin position

Eject Eject (maximum 44 inches) Advances to the top-margin position

Data Over the page length

set by command

Over the paper length

1. Case that page length is set by

2. Case that page length is not set

Eject Eject

Banner mode Off

(manual insertion operation)

ESC (C → Eject

by ESC (C → Advances to the top-margin

of the next page

ESC (C → Eject

by ESC (C → No operation

Advances to the top-margin position of the next page.

of the next page. of the next page.

No operation

Banner mode On

1-2

Rev. A

1.5.3 Printer Adjustment Mode

The EPSON Stylus COLOR 3000 allows users to adjust the following items.

Table 1-35. Printer Adjustment Patterns

Pattern No. Items

1 1 1

*1 With an increment of 1/1,440 inch *2 With an increment of 1/720 inch

Adjustment method



Pattern 1 Uni-d adjustment at 400 cps * Pattern 2 Bi-d adjustment at 400 cps * Pattern 3 Bi-d adjustment at 200 cps * Pattern 4 Head gap adjustment between black and color to the cross

feed direction at 200 cps *

Pattern 5 Head gap adjustment between black and color to the cross

feed direction at 100 cps *

Start

EPSON Stylus COLOR 3000

Press the "Pause" button while turning on the printer.

The printer prints the instruction sheet on how to select the language.

1.Move through the languages listed by pressing the "Micro Adjust " button.

2.Select the language by pressing the "Pause" button.

The printer prints the instruction sheet on how to adjust the printer.

Adjust the patterns ?

YES

1. Select the appropriate test by pressing the "Micro Adjust " button.

2. Press the "Pause" button.

The printer prints the test patterns.

Select the most closely aligned pattern by pressing the "Media Type" button.

Press the "Pause" button to set the selected pattern number.

More adjustment ?

Turn the printer off once to save the new settings into the EEPROM.

YES

Figure 1-12. Printer Adjustment Flowchart

Rev. A

1-2

Product Descriptions

1.5.4 Printer Initialization

This printer has three initialization types: Power-on initialization, Operator initialization, and Software initialization.

Power-on Initialization



Triggers Turning on the printer

Cold reset command (Remote RS command)



Actions performed



Initialize the printer mechanism.



Clears input data buffer.



Clears download character set.



Clears print buffer.



Sets default values.

Operator Initialization



Triggers Pressing the Pause button for 3 seconds

The printer recognizes the /INIT signal (negative pulse) of parallel interface.



Actions Performed



Clears input data buffer.



Clears download character set.



Clears print buffer.



Sets default values.

Software Initialization



Trigger ESC @ commend



Actions Performed



Clears print buffer.



Sets default values.

1.5.5 Self-test Printing Mode

This printer has the self-test printing mode to check several printer functions.



Trigger LQ mode: Pressing LF/FF button while turning on the printer

Draft mode: Pressing Load/Eject button while turning on the printer



Items checked



Function of the control circuit board



Function of the printer mechanism



Print quality

1.5.6 Hexadecimal Dump Function

Pressing the LF/FF and Load/Eject buttons while turning on the printer activates the hexadecimal dump mode. Each line has Hexadecimal codes, along with their corresponding letters printed in the right column. If a received c ode denotes an unprintable charac ter, a control code such as “.” (period) is pr inted in the right column. This function enables users to check whether the data from the host is properly transferred. Turn off the printer to exit the mode.

1.5.7 Monochrome Printi ng Mode

When the printer is in the ink end (color) condition, the black ink is subs tituted to continue to print. To switch to monochrom e printing mode, turn off and bac k on the printer. This mode is als o selected by the command “

ESC (K)

“. The Color select command “

ESC r

” is ignored in this mode.

1-3

Rev. A

EPSON Stylus COLOR 3000

1.5.8 Error Condition

When any of the conditions lis ted below is detected, the printer goes into an error s tatus and the /ERRO R signal goes LOW and the BUSY signal goes HIGH. On this condition, the printer accepts no data and goes into a pause status automatically.



The CR moves abnormally. (Fatal error)



Paper ends or paper is jamming.



Release lever position is inappropriate for the paper path currently used.



No ink cartridge is installed or ink ends.



Maintenance is required.

Table 1-36. Printer Condition and Panel Status (2)

LED Indicators

Printer Condition

Power on On Capping function in

the power off Data exit Blinks Paper Out Paper jam Pause During ink sequence No color ink cartridge

or ink out Ink Low (color) No black ink c artridge

or ink out Ink Low (black) Lever error Fatal error Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Maintenance request Blinks Blinks Blinks On On On On Blinks Panel reset function On for 1 second only. Reset EEPROM and

Timer IC



Blinks

     

           

      

Note)

1. “” means no effect.

2. To recover from the fatal error, turn off and back on the printer or send the /INIT signal after eliminating the trigger.

3. Maintenance request occurs when the wasted ink fills to capacity, and servicing is required. To clear the error status, perform EEPROM reset. (See Table 1-29. Panel Function with Power On, Chapter 2 and Chapter 3.)

4. Refer to Table 1-30 for detailed conditions indicated by the Media type LED indicators.

Paper Pause Ink Out Media

Out

             

      

Blinks

           

Blinks

%& "' ( )

         

Corresponding color goes on.

Corresponding color blinks.

Blinks

On for 1 second only.

Type

 

Blinks

Rev. A

1-31

Product Descriptions

1.6 Main Components

The main components of the EPSON Stylus COLOR 3000 are as follows:



Main control board C203 MAIN



Power supply board C172 PSB/PSE



Control panel bard C203 PNL



Printer mechanism M-4J60



Housing

1.6.1 C203 MAIN Control Board

This board consists of the following:



16-bit CPU (IC5) (clock wave : 19.66Mhz)



Gate arrays B05B33 (IC6), B05B45 (IC16)



PROM (IC13)



CG-ROM (IC11)



DRAM (IC12),



SRAMs (IC14, IC28)



RESET ICs (IC3, IC9)



EEPROM (IC1)



Motor driver ICs (IC17, IC18) for the pump motor and PF motor



Motor driver ICs (IC19, IC20) for CR motor



Head common driver hybrid ICs (IC22, IC23).

PF Motor Driver CR Motor Driver

Pump Motor Driver

Color Head Common Driver

Black Head Driver

Figure 1-13. C203 MAIN Board Component Layout

E05B45 (GA)

DRAM H8/2655 (CPU)

E05B33 (GA)

1-3

Rev. A

EPSON Stylus COLOR 3000

1.6.2 C172 PSB/PSE Board

C172 PSB/PSE board, same as for Stylus COLOR 1500, consists of the transformer, switching FET, regulator IC on the secondary circuit, diode bridge, fuse, and so on.

Fuse

Regulator IC

Transformer

Diode Bridge

Figure 1-14. C172 PSB/PSE Board Component Layout

Switching FET

1.6.3 Control Panel

The control panel for this printer consists of 9 pushbuttons and 13 printer LED indicators.

1.6.4 Printer Mechanism Unit (M-4J60)

The printer mechanism unit for this printer is composed of the CR m otor, PF motor, pump motor, paper feeding mechanism, and ink system mechanism.

1.6.5 Housing

The housing for this printer consists of the upper housing, lower housing, printer cover, ink cartridge cover, rear sheet guide, tractor unit, knob, adjust lever and release lever.

Rev. A

1-3

Chapter 2

Operating Principles

2.1 Overview................................................................................................................2-1

2.2 Printer Mechanism Operating Principle .............................................................2-1

2.2.1 Printer Mechanism ................................................................................................................. 2-1

2.2.2 Printing Mechanism ............................................................................................................... 2-2

2.2.2.1 Printhead Structure ...................................................................................................2-2

2.2.2.2 Printing Process ........................................................................................................2-3

2.2.2.3 Printing Methods........................................................................................................2-3

2.2.3 Carriage (CR) Mechanism...................................................................................................... 2-4

2.2.4 Paper Feed Mechanism..........................................................................................................2-5

2.2.4.1 ASF (Auto Sheet Feeder) Mechanism ...................................................................... 2-6

2.2.4.2 Tractor Mechanism.................................................................................................... 2-7

2.2.4.3 Manual Feed Mechanism..........................................................................................2-7

2.2.5 Platen Gap (PG) Adjust Mechanism ..................................................................................... 2-8

2.2.6 Ink System............................................................................................................................... 2-9

2.2.6.1 Pump Mechanism.................................................................................................... 2-10

2.2.7 Capping Mechanism............................................................................................................. 2-11

2.2.7.1 Wiping/CR Lock Mechanism...................................................................................2-12

2.3 Electrical Circuit Operation Principles.............................................................2-13

2.3.1 C172 PSB/PSE Electrical Circuit Board.............................................................................. 2-13

2.3.2 C203 MAIN Control Board.................................................................................................... 2-15

2.3.2.1 Reset Circuits..........................................................................................................2-17

2.3.2.2 Sensor Circuits........................................................................................................ 2-17

2.3.2.3 CR Motor Driver Circuits ......................................................................................... 2-20

2.3.2.4 PF Motor Driver Circuit............................................................................................ 2-21

2.3.2.5 Printhead Driver Circuit ........................................................................................... 2-22

2.4 Ink System Management....................................................................................2-26

2.4.1 Ink System Operations......................................................................................................... 2-26

2.4.2 Counters................................................................................................................................ 2-27

EPSON Stylus COLOR 3000

2.1 Overview

This chapter describes the operating principle of the printer mechanism and electrical circuit.

2.2 Printer Mechanism Operating Principle

2.2.1 Printer Mechanism

The printer mechanism of this printer is composed of the printhead unit, paper f eeding mechanism, (arriage) mechanism and the pump mechanism. The bloc k chart for the printer mechanism is shown in Figure 2-1. The printer mechanism has 3 motors:  motor, PF (Paper Feed) motor and pump motor. Tor que from the  motor moves the  in the column direction. PF m otor sends torque to load, f eed and eject paper. The pump motor drives the pum p mechanism. The r eleas e lever s witches torque from the PF motor side to the tractor side to feed continuous paper.

Release Lever



PF Motor

CR Motor

Disengage Mechanism

Black

Printhead

Pump Motor

Color

Printhead

Figure 2-1. Printer Mechanism Block Diagram

Push Tractor Mechanism

Paper Feed Mechanism

ASF Mechanism (For Cut sheet only.)

CR Unit

Pump Mechanism

Rev. A

2-1

Operating Principles

2.2.2 Printing Mechanism

The printing method used for this printer is On-dem and ink jet, sam e as for other EPSON ink jet printer s. However, use of the new type of printhead improves print quality and speed. The printing m echanism has 2 parts: printhead and ink cartridge which is filled with ink.

2.2.2.1 Printhead Structure

The printhead for this printer has the black and color printheads. The structures of the printheads are basically the same except for the nozzle configuration. The blac k printhead, us ed for the black ink only, is composed of 128 nozzles (32 nozzles for each of 4 rows), while the color printhead, composed of 3 printheads for Magenta, Cyan and Yellow, has 64 nozzles (32 nozzles for each of 2 rows) for each color.

Printhead Driver Circuit Board

Nozzle Plate

To the ink cartridge.

Piezo

Cavity

Nozzle

Figure 2-2. Printhead Structure

Rev. A

EPSON Stylus COLOR 3000

2.2.2.2 Printing Process

Steps bellow describe how the ink is ejected from each nozzle with the on-demand ink jet system.

Step 1>Normal state

No print signal is applied to the PZT (Piezo electric element). In this state, the PZT does not displace and no pressure is added to the ink inside the c avity. Therefore the pressure in the cavity is k ept at a cons tant level.

Step 2>Ejecting state

Print signal is applied to a specific nozzle via the head driver circuit to activate the PZT of the nozzle. The voltage which activates the PZT is produced in the com mon dr iver circuit on the c ontrol board. When the voltage is applied to the PZT, the PZT displaces and the pressure in the c avity changes. Then the ink ejects as a result.

Ejecting State

Cavity

Normal State

Piezo

Nozzle

Ejected Ink

Figure 2-3. Printing Operation States

When no m ore print signal is applied to the PZT, the PZT recovers f rom the displaced s tatus. With this process, the cavity also returns to its normal size, which brings the pressure negative. The negative pressure in the cavity then absorbs the ink from the cartridge to fill the cavity with the ink again for the next printing motion. The ink which was not used for printing adheres on the nozzle surface and increases viscosity in the nozzles, and it causes printing malfunction. Theref ore the ink is per iodically absorbed and wasted into the waste ink drain pads by the pump mechanism. Ink viscosity varies depending on the temperatures around the printhead. Since the c hange in the ink viscosity leads to decline in print quality, the thermistor is attached to the color printhead to keep the drive voltage at a proper level based on the detected printhead temperature.

2.2.2.3 Printing Methods

EPSON micro dot printing



Both black and color printings can be performed in the normal dot printing mode and EPSON micro dot printing mode. In the normal dot printing mode, the printer uses less ink to create sharper dots. Therefore the gradation range is expanded in more delicate tone. This mode is available when the 1440X720-dpi paper or glossy film is selected.

Micro weave printing



In this mode, the printer prints 1 line with multiple passes by using specific nozzles for each pass. The paper is also fed in smaller increments for this operation. Since this mode eliminates white banding problem, the graphic images quality is improved. However, decrease in paper feed speed is inevitable. The Micro Weave printing can be selected through the printer driver.

Rev. A

Operating Principles

2.2.3 Carriage () Mechanism

The  mechanism is composed of the  unit, timing belt,  guide shaft, paper eject frame,  (Home Position) sensor and  motor. The  motor sends torque to the tim ing belt to move the  unit in the both right and left directions along the paper eject frame and  guide shaft. A stepping motor us ed for the  motor enables the  unit to move and stop at any position. The  is primarily detected at the home position by the  sensor when the printer is turned on and its position is then controlled by the open loop. Table 2-2 and Table 2-3 show the specification for the  motor and the  motor drive term s, respectively.

Table 2-1.  Motor Specification

Item Description

Motor type 4-phases / 200-pole / Hybrid type stepping motor Drive voltage Coil resistance Excitation mode

Drive frequency 480 to 9600 Hz Minimum step 0.202 mm (2-2 phase drive)

42 VDC ± 5% (The voltage applied to the driver) 5 Ω ± 7% (at 25° C per 1 phase)



Bipolar drive



2-2 phase, 1-2 phase, 1-2, 21-2 phase, 41-2 phase



Constant current drive

0.106 mm (1-2 phase drive)

0.053 mm (1-2 phase drive)

0.026 mm (21-2 phase drive)

0.013 mm (41-2 phase drive)

Table 2-2. CR Motor Drive Terms

mode

Print speed Acceleration1Acceleration

Constant Deceleration1Deceleration

Draft 400 cps 0.91 0.91 0.63 0.91 0.91

LQ 200 cps 0.91 0.91 0.49 0.63 0.63

SLQ 100 cps 0.63 0.63 0.49 0.63 0.63

CR Motor

CR Unit

Timing Belt

Sub Pulley

Pulley

HP Sensor

Paper Eject Frame

CR Guide Shaft

Figure 2-4. CR Mechanism

Rev. A

EPSON Stylus COLOR 3000

2.2.4 Paper Feed Mechanism

The paper feed mechanism of this printer consists of the integrated ASF (Auto Sheet Feeder) mechanism, tractor mechanism, PF (Paper Feed) motor, front/rear PE (Paper End) sensors, PF roller, paper guide mechanism, paper eject unit, and PF motor drive disengage m echanism. The torque fr om the PF motor drives the paper load mechanism, paper f eed mechanism and paper ej ect mechanism . While the pr inter is not printing, the PF motor drive disengage mechanism switches the torque sent from the PF motor to the ASF mechanism, which depends on the  position. W hile the paper feed mechanism is driven, the torque from the PF m otor is transmitted via PF motor pinion gear and disengage gear to the PF roller, where the torque splits in 2 directions: one is to the paper ej ect mechanism via the gear tr ain in the paper guide assembly and the other is to the ASF mechanism via the tr ansmission gear. The tractor drive gear train is set at the left end of the PF roller. Table 2-3 and Table 2-4 shows the specification for the PF motor and PF motor drive terms, respectively. Figure 2-5 illustrates the paper feed mechanism.

Table 2-3. PF Motor Specification

Item Description

Motor type 4-phases / 96-pole / Hybrid type stepping motor Drive voltage Coil resistance Connection Bipolar Excitation mode 2-2 phase, 1-2 phase, W1-2 phase constant current drive Minimum step 1/720 inch / step (2-2 phase drive)

42 VDC ± 5% (The voltage applied to the driver) 10 Ω ± 10% (at 25° C per 1 phase)

Table 2-4. PF Motor Drive Terms

Operation

mode

Paper feed

   

Acceleration Constant Deceleration Stand-by

0.9/0.9 0.9 0.75/0.75 0.6

ASF Feed 0.9/0.9 0.9 0.75/0.75 0.6 Pump driven Pump driven

(slow)

 /0.9

 / 

0.9 0.9 0.6

0.9

 / 

0.6

Note) Double 1-2 phase drive / 2-2 phase drive

Tractor Disengage Gear

ASF Transmission Gear

To the tractor mechanism.

To the ASF mechanism.

PF Drive Roller

Paper Eject Roller

Paper Eject Out Roller

PF Motor Pinion Gear

PF Motor

Paper Eject Drive Unit

Figure 2-5. Paper Feeding Mechanism

Rev. A

Operating Principles

2.2.4.1 ASF (Auto Sheet Feeder) Mechanism

When the printer is not printing, the  motor drive disengage m echanism switches the torque sent f rom the PF motor to the LD rollers in the of the  unit. The  roller shaft has 2 cams on the right and left ends. They push down the paper support to make the paper surf ace com e in contact with the  rollers. The one way clutch rotates the roller in the specified direction to load paper. Once the paper is loaded, the torque from the planetary gear is disengaged and the paper is then transported by the paper feed mechanism.

Cam

Paper Support



mechanism via the planetar y gear based on the detected position

Cam

ASF Mechanism

LD Rollers

Paper

One-way Clutch

ASF Transmission Gear



PF Motor Pinion Gear

PF Drive Roller

Front PE Sensor

PF Motor

Figure 2-6. ASF Mechanism

Rev. A

EPSON Stylus COLOR 3000

2.2.4.2 Tractor Mechanism

Tor que sent from the  motor to the  roller is transmitted to the tractor gear via dis engage m echanism operated with the release lever. When the release lever is set to the tractor side, the release sensor detects the condition and torque transmission to the ASF mechanism is cut off as a result.

Tractor Gear

Tractor Disengage Gear

PF Motor Pinion Gear

Release Lever

Rear PE Sensor

PF Roller

PF Motor

Figure 2-7. Tractor Mechanism

2.2.4.3 Manual Feed Mechanism

The printer loads cut sheet and roll paper in the r ear paper slot. When the rear  sensor detects the paper, the  unit leaves the ASF paper feed position. Theref ore the paper is manually loaded even if paper is set in ASF. This mode allows use of types of paper that differs from the one set in ASF.

Rev. A

Operating Principles

2.2.5 Platen Gap () Adjust Mechanism

The  adjust mechanism , located at the top right of the printer cover, allows the user to set the proper platen gap (distance between paper and nozzle surface) for the paper thicknes s to prevent ink sm udging. The  adjustment mechanism consists of the  adjust lever,  guide shaft, and parallelism adjust bushings. Switching the lever from “0” to “ 1” turns the  guide shaft which joins to the lever. Since the joint for the parallelism adj ust bushing and  guide shaft has an eccentricity toward the guide shaft, the guide shaft moves from or toward the platen as the lever m oves. With this m ovem ent, the platen gap also changes from wide to narrow or vice versa.

Table 2-5. Platen Adjust Lever Positions

Paper Type Adjust lever Position PG Adjustment Value

Cut Sheet,

Label, Continuous paper

Envelope ,Card, Index card Front + 0.7 mm

Parallelism Adjust Bushing



Sheet,

(Rear)

Rear 0

PG Adjust Lever

(Front)

Printhead

Eccentricity

CR Guide Shafts

Figure 2-8. Platen Gap Adjustment Mechanism

Platen Surface

Platen Gap

Rev. A

2.2.6 Ink System

The ink system for this printer is composed of the following mechanisms.



Ink cartridge



Pump mechanism



Capping mechanism



Waste ink drain pads



Wiping mechanism

Figure 2-9 shows the block chart of the ink system. flowchart

Ink Cartridges

Cleaner Head for Black and Color Inks

CR Unit

EPSON Stylus COLOR 3000

Air Valves

Pump 2

Pump 1

Clutch Unit

Combination Gear

Pump Unit

Pump Motor

Gear

Waste Ink Drain Pads

Figure 2-9. Ink System Mechanism

Rev. A

Operating Principles

2.2.6.1 Pump Mechanism

The pump mechanism , com posed of the pump m otor and pum p unit, absorbs viscous ink in the printhead nozzles and drains it to the waste ink drain pad through the cap. Since this printer has only one pum p, it uses the pump for both black and color inks by alternating the rotational direction of the pump motor. When the pump m otor rotates forward * backward rotation *

. The pump unit is com posed of the pulley, tube and 2 rollers, as shown in Figure 2-

10. To dr aw ink, the pulley rotates the rollers which squeeze the tube reducing volume as they move to produce negative pressure. As a result, the ink is vacuum ed and drained into the waste ink drain pads by the pressure produced through the operation.

*1 The direction in which the paper is fed. *2 The direction in which the paper is fed back.

Pulley

Ink Draining

it absorbs black ink . On the other hand, it absorbs color ink with

Ink Drawing

Pump Motor (Backward):Color Ink Drawing

Pulley

No Ink Drawing

No Ink Draining

Pump Motor (Backward):No Black Ink Drawing

Ink Draining

Pump Motor (Forward):Black Ink Drawing

No Ink Draining

No Ink Drawing

Pump Motor (Forward):No Color Ink Drawing

Figure 2-10. Pump Operation

Table 2-6. Pump Motor Specification

Item Description

Motor type 4-phases / 48-pole / PM type stepping motor Drive voltage Coil resistance

42 VDC ± 5% (The voltage applied to the driver)

7.7 Ω ± 10% (at 25°C per phase)

Connection Bipolar



Excitation mode

2-2 phase, 1-2 phase, W1-2 phase,



Constant current drive

Drive frequency 281 to 1250 Hz

Drive current

825 mA (at fast absorption) 500 mA (at slow absorption)

2-1

Rev. A

EPSON Stylus COLOR 3000

2.2.7 Capping Mechanism

Ink around head nozzles loses moisture If they are left exposed while the printer is in non-printing or power off status. Therefore the printheads must be capped to avoid increasing viscosity due to dried nozzles. The caps are individually equipped for the black and color printhead. W hen the  moves right from the home position, the c ap holder also shif ts right and strik es the right f ram e. This m otion opens the air valve and the air in the cap is release. To resume printing, the  moves right from the home pos ition to strike the right fram e with the cap holder so that the air valve opens . T his operation brings the negative pressure in the cap back to nor m al and the  goes back to the home pos ition. Since the power s witch of this printer uses the secondary power-on circuit, the printer power stays on to allow the printer to complete the capping operation even if the printer is turned off during the operation.

Black Ink Printhead

Cap2

To the waste ink drain pads

Valve Spring

Carriage

Color Ink Printhead

To the waste ink drain pads

Air Valve

Air Tube

Cap Holder

Cap1

Capping Unit Frame

Figure 2-1 1 . Capping Mechanism

Rev. A

2-1 1

Operating Principles

2.2.7.1 Wiping/CR Lock Mechanism

The wiping operation removes the ink and dust adhered around the nozzles. This is operated during a cleaning sequence. W hen the pum p m otor r otates back ward, the torque s ent via the head c leaner ( wiper) drive gear and the clutch moves the head cleaner to the printhead route. The  unit then begins to move right and left to wipe the nozzle surface against the head cleaner. When the wiping operation is complete, the pump motor rotates f orward to move back the head cleaner. Only one cleaner head is used for the both black and color printheads. The head cleaner also functions as the  lock mechanis m. When the printer power is off, it keeps the  unit from shif ting left (to the printing side). T he switch lever locks the



at the right end by joining with the disengagement mechanism. With this mechanism, the  unit

remains in the capping position while transported.

Head Cleaner

Head Cleaner Lever

Printhead

Pump Motor

Gear Train

Disengage Mechanism

Figure 2-12. Wiping/Carriage Lock Mechanism

Pump Gear/Clutch

Switch Lever

Head Cleaner Lever

2-1

Rev. A

EPSON Stylus COLOR 3000

2.3 Electrical Circuit Operation Principles

This printer consists of the following circuit board:



C203 MAIN board



C178 PSB/PSE board



C203 Panel board

Head driver circuits are directly attached to the black and color printheads. Figure 2-13 shows the block diagram of the electrical circuit.

C203 PNL

C172 PSB/PSE

C203 MAIN

+5VDC

+42VDC

Printer Mechanism Unit

CR/PF/Pump Motors

CR Unit

Color Head Driver Circuit

Black Head Driver Circuit

Figure 2-13. Electrical Circuit Block Diagram

2.3.1 C172 PSB/PSE Electrical Circuit Board

The output voltages of the PSB/PSE board are as shown in Table 2- 7. Since the electrical circuit of this printer is in a secondary circuit, the delay timer can be used to allows the printer to execute the capping operation after the printer power is turned off. This is to prevent ink clogging or smudging caus ed by the exposed condition of the printhead.

Table 2-7. DC Voltage Distribution

VDC Application

+42 V

+5 V

 motor/ motor 

Printhead common voltage

C

MAIN control board (logic)



Sensors



Control panel, Head nozzle selection

The electrical circuit of this board us es the



(Ringing Choke Converter) switching regulator.  voltage is first input to the filter circ uit for higher harm onics absorption and is converted into  voltage thorough the rectifier and smoothing circ uits. The  voltage is then input to the switching circuit. These operations are followed by the transformer which generates and stabilizes +42 produced +42



is then converted into the stable +5



by the regulator IC. The



in the secondary side. The



on the

 !"#

board monitors the on/off signal from the power switch on the control panel. W hen the power switch is turned off, the



sends the

 

signal (PSC) to the electrical circuit. The electrical board has a delay circuit (ZD86, C82 and Q84) to delay the power off. The delay period depends on the electrolytic capacitor. It continues to output +5 V and +42 V to keep the main circuit switch on the primary side active until all electric charge is discharged. T he minim um delay period is normally 30 seconds, which ,however, varies depending on the capacitor size.

Rev. A

2-1

Operating Principles

Figure 2-14 illustrates the electrical circuit diagram.

Full Wave Rectifier Circuit

Filter

Fuse

AC Input

Primary Circuit

Smoothing Circuit

Switching Circuit

(Q1)

Half Wave Rectifier Circuit

Photo-coupler PC1

+42 V

Circuit

+42 V

Protection Circuit

(Q81, Q82)

+42 V

Protection Circuit

(ZD52, ZD53, ZD87, Q82, Q83)

+5 V

Protection Circuit

(ZD53, Q82)

Secondary Circuit

Chopping Regulator

(IC51)

Line Detector

(ZD51, 81 to 86)

Line Over Current

Line Over Voltage

Over Voltage

+42 V

+5 V

Power Off Delay Circuit

(ZD88, C84, Q84)

Power Off Signal

Figure 2-14. Power Supply Circuit Diagram

+5 VDC line over voltage protection circuit



The output voltage level of the 5 V line is monitored by a Zener diode (ZD53). If the voltage level exceeds 9 V, the status is fed back to the primary switching circuit through the transistor (Q82) and photocoupler (PC1) to cut off the +42 V line to the regulator (IC51).

+5 VDC line constant voltage control circuit



Voltage at +5 VDC line is controlled by the regulator IC (IC51). When the abnormal voltage at +5 VDC line is detected, the status is input to the internal comparator of the regulator to control the voltage.

+42 VDC line over voltage protection circuit



The output level of the +42 VDC line is monitored by the 2 Zener diodes ZD52 and ZD87. When the output level of the +42 VDC line exceeds +48 V, the switching FET operation on the primary side is stopped via the thyristor (CY52), transistor (Q81) and photocoupler (PC1).

+42 VDC line constant voltage control circuit



Voltage at the +42 VDC line is monitored by the Zener diodes (ZD51, ZD81−ZD86). This circuit feeds back the output voltage level status through photocoupler (PC1) to the primary switching circuit to control the on/off time of the switching FET to constant output voltage level.

+42 VDC line overcurrent protection circuit



The output current is monitored by the transistors Q81 and Q82. When the output current is abnormally low , the status is assumed to be a short circuit and the information is fed back to the primary circuit to stop the switching FET operation.

2-1

Rev. A

EPSON Stylus COLOR 3000

2.3.2

This printer uses

Table 2- 8 and Figure 2-15 s how the allocated functions for m ajor com ponents and the m ain control circ uit block diagram, respectively.



MAIN Control Board



MAIN for the main control circuit board. It consists of the following:



16-bit



H8S/2655 (IC5) Runs at 19.66 MHz



2 gate arrays E05B33 (IC6) Manages interfaces, motors and printheads.

E05B45 (IC16)



P-ROM, DRAM and MROM



Drivers Produces common voltage for printheads

Drives motors.

Table 2-8. Location and function of the Major Components

IC Location Function

CPU IC5

Gate Array IC16

IC6

DRAM IC12 SRAM IC14, IC28

C.G. ROM IC1 1

P-ROM IC13

Optional ROM

EEPROM IC1

Timer counter IC IC2

Reset IC IC9

Common driver IC IC22

Driver IC17

IC7, IC10

IC3

IC23

IC18 IC25

IC19, IC20



16-bit





Runs at 19.66 MHz



Controls the printer at the gate arrays IC5 and IC6 according to the program in P-ROM.



Monitors the printhead temperature.



Controls the I/F for the control panel.



Controls the  motor.



Manages the sensors.



Controls the parallel I/F.



Controls the serial I/F.



Controls Type-$ I/F.



Controls the  motor.



Controls the pump motor.



Controls black and color printheads.



Manages buffers, work area in the



Manages input buffer.



Manages C.G. (Character Generator).



Manages printer control program.



For optional fonts and  (not attached as a standard item.)



Stores values for the default settings and other values.



Manages timers for the ink system.



Outputs a reset signal to the logic line (+5).



Outputs a reset signal to the power line (+42).



Produces common voltage for the black printhead.



Produces common voltage for the color printhead.



Drives the  motor.



Drives the pump motor.



D/A converter for  motor control



Drives the  motor.

 %

Rev. A

2-1

Operating Principles

Type-B I/F

PW, PQ, PWS Sensors

Head Temperature

+42V

Power Line Reset IC M51955BFP (IC3)

+5V

Logic Line Reset IC RST592D (IC9)

C.G.-ROM

(8M)

(IC11)

P-ROM(8M) (IC13)

CPU H8S/2655 (IC5)

+5V

Lithium Battery

EEPROM AT93C56 (IC1)

+5V

DRAM(16M) (IC12)

Timer Counter IC RTC-4543SA (IC2)

SRAM(256K) (IC14)

CLK

SD I/O

SRAM(256K) (IC28)

GA E05B45 (IC16)

GA E05B33 (IC6)

Optional ROM (IC7, IC10)

Data Bus

Address Bus

CR Motor Control

Control Panel

Sensors

Black/Color Printhead Control Signals

PF Motor Control Signal

Pump Motor Control Signal

Parallel I/F

Serial I/F

+42VDC

+5VDC

PSC

From IC6

From IC16

From IC6

Carriage

Black/Color Printhead Common Driver Circuit

Nozzle Selection Signal

Nozzle Selection IC

CR Motor Driver Circuit A3953 (IC19, IC20)

PF Motor Driver Circuit

CR Motor

PF Motor

UDN2917EB (IC17)

Pump Motor Driver Circuit

Pump Motor

UDN2917EB (IC18)

Figure 2-15. Control Circuit Block Diagram

Black Printhead

128 Nozzles

Color Printhead

64 Nozzles for each color

2-1

Rev. A

EPSON Stylus COLOR 3000

2.3.2.1 Reset Circuits

The



MAIN board contains two reset circuits: for logic line (+5 ) and power line (+42 ). Reset IC M51955BFP (IC3) monitors the +42  line. It outputs /NMI signal to the the power line for the motors when the voltage level drops below 33.2 . Reset IC RST592D (IC9) monitors the +5 V line and sends low pulse when the voltage level drops below 4,2 . While the printer power is on, it outputs



until stabilized +5  is produced to ensure the

+5V

RST592D

(IC9)

+42V

M51955BFP

(IC3)

VOUT



and the gate array to cut off



’s proper operation.

RESET

E05B45

(IC16)

NC5

OUT

NMI

RES

CPU

H8S/2655

(IC5)

RESET

E05B33

(IC6)

Figure 2-16. Reset Circuit Block Diagram

2.3.2.2 Sensor Circuits



and the gate array E05B45 (IC 16) monitor printer condition refer ring to the signals fr om 13 s ensors

described below

HP : Output from the HP(Home Position) sensor.



The  sensor for this printer uses the reliable photo interrupter system. the signal  is



unit is at the home position, and is

PE_R : Output from the rear PE (Paper End) sensor.



"

when it is not at the home position.

The rear  sensor, attached to the rear part of the paper path, detects paper presence condition for continuous paper or cut sheet set in the rear paper slot. A mechanical switch is used for this sensor and the signal

PE_F : Output from the front PE (Paper End) sensor.



&

"

with paper detected and



without any paper detected.

The front  sensor, located in the paper guide unit, detects paper presence condition for sensor uses a mechanical switch and the signal

&

"

with paper detected and is

any paper detected.







without

when the

. This

REL : Output from the release sensor.



Release sensor is built into the rear part of the left frame in the printer mechanism. It determines whether the release lever is set to the cut sheet side (friction mode) or to the continuous paper side (tractor mode). The signal REL is



when the lever is set to the friction mode and is

"

when the

lever is set to the tractor mode.

CO_B/C/M/Y :Output from each ink cartridge sensor.



The ink cartridge sensor for each color is individually attached to the ink cartridge holder in the printer mechanism. It determines whether the corresponding ink cartridges is installed or not. A mechanical switch is used for this sensor and the signals



when the cartridge is not installed. When the sensor detects no cartridge condition, the ink

&$!'



when the cartridge is installed and is

consumption counter is reset.

IE_B/C/M/Y : Output from each ink end sensor.



The ink end sensor for each color, individually attached to the ink cartridge holder in the printer mechanism, detects ink end condition*. It uses the mechanical switch system and the signal IE_B/C/M/Y is



"

on the ink left or end condition, respectively. If the ink end condition is detected while the ink cartridge is detected by the ink cartridge sensor, the ink consumption counter is reset.

Note) The ink end sensor detects an ink end condition when the remainder of the ink drops to 5 % of

the capacity.

Rev. A

2-1

Operating Principles

Thermistor



Thermistor is attached onto the color printhead to monitor the temperatures around the printhead. It functions to avoid change in ink viscosity, which affects printing result. The signal output from the sensor is directly transmitted to the analog port of the

ASF_PW : Output from the ASF PW (Paper Width) sensor.



The ASF  sensor uses a sliding potentionmeter. (The maximum resistance :10kΩ.) It is attached to the left edge guide in the ASF hopper assembly. By aligning the left edge guide to the paper, the sensor actuator runs along the grooves at the bottom of the stacker. The length measured by the actuator is converted into ohms which corresponds to the paper width, then the value is transferred to the analog port of the (See Table 2-9.) If the detected paper width does not match the width for the selected page size, the printer ignores the data which does not fit in the printable area of the paper. In case no change is detected in paper size by the ASF PW sensor and ASF PL sensor, the CR PW sensor* is not activated.



. The paper width is detected in 10 ranges between 98 mm and 441 mm.



Note) *CR PW sensor: See Page 2-19.

Table 2-9. Paper Width Range

Detecting Range

1 2 3 4 5 6 7 8 9

ASF_PL : Output from the PL (Paper Length) sensor .



Paper length is determined by three mechanical switches which detect the paper tray condition based on the rear edge guide position and paper tray extension position. Each paper size range is detected by the paper tray condition based on the combination of on/off status of the switches, as shown in Table 2-10. The paper size is determined and memorized by combining the paper width and paper length detected by the ASF PW sensor and the PL sensor.

Table 2-10. Paper Length Detecting Range

(Length between right and left edge guides)

98=<=<108.6 / 123.4=<=<141.9

146.7=<=<151.9 / 161.6=<=<187.8

196.6=<=<232.1

231.8=<=<260.6 276=<=<283

293.6=<=<300.6

325.4=<=<332.6

349.6=<=<367.6

416.6=<=<423.1

429.1=<=<441

Paper Width (mm):D

Paper tray condition Corresponding sensor combination

Length Range Rear edge

guide

Up to 158 mm 0 to 22 mm In On On Off Up to 232 mm Up to 96 mm In On Off Off Up to 260 mm Up to 125 mm In Off On Off Up to 283 mm Up to 147 mm In Off Off Off Up to 302 mm Up to 167 mm In Off On Off

Up to 623 mm Down

2-1

Paper tray

extension

()) *(+ ,*-

+. / ,,%

Switch 1 Switch 2 Switch 3

On On On

Rev. A

EPSON Stylus COLOR 3000

ASF_PQ :Output from the PQ (Paper Quantity) sensor.



The paper quantity sensor uses a sliding potentionmeter. (The maximum resistance:10 ohms) The sensor ,attached to the right edged guide in the hopper assembly, detects the paper quantity between the maximum of 15 mm and the minimum of 3 mm. The detected quantity is converted into the corresponding resistance and the information is transferred to the analog port of the sensor detects the condition of 3.6 mm which accommodates 25 sheets of 55 kg/m the signal

GAP : Output from the PG (Platen Gap) sensor.







. When the

-paper, it outputs

The  sensor determines whether the adjust lever is set to the thin paper side or thick paper side. The signal



"

when the lever is on the thick paper side, and



on the thin paper side. This

sensor uses a mechanical switch.

REL : Output from the release sensor.



Release sensor attached to the left and rear side of the printer mechanism determines whether the release lever is set to friction feed side or tractor side. The signal



on the friction feed side.

CR_PW : Output from the CR PW (Paper Width) sensor.



The

 

sensor, attached to the left side of the  unit, uses a photo interrupt system. While the



"

on the tractor side and is

makes 1 return in the paper width seek mode, sensor reads the voltage level of the output signal at each  motor phase change pulse to determine the positions for the both edges of the paper. This operation prevents printing on the platen. In case no change is detected in paper size from the previous paper by the signal output from this sensor is directly sent to the analog port of the

 

sensor and ASF PL sensor, the

 

sensor is not activated. The





Figure 2-21 shows the sensor circuit block diagram.

CPU H8S/2655 (IC5)

Thermistor

ASF PW Sensor

Paper Quantity Sensor

CR PW Sensor

THS

ASF_PW

ASF_PQ

CR_PW

AN0

AN1

AN2

AN3

Data Bus

Address Bus

GA E05B45 (IC16)

SWC1,3,5

SWC0,2,4

SWC9-11

SWC8

SWA0

SWA1

SWA2

Ink Cartridge Sensor (B,C,M,Y)

Ink End Sensor (B,C,M,Y)

Release Sensor

PL Sensor

Rear PE Sensor

Front PE

HP Sensor

Sensor

SWA3

GAP Sensor

Figure 2-17. Sensor Circuit Block Diagram

Rev. A

2-1

Operating Principles

2.3.2.3  Motor Driver Circuits

The gate array E05B45 produces the phase data (CRDA0-5) for the CR motor and sends it to 2-channel D/A converter in parallel data. W hen the phas e-c hange tr igger s ignal (CRT RG ) is s ent f rom the gate array, the A/B phase-change signal (CRDASEL) is output. T hen the A-phas e-data and B- phase-data are transferred to the channel A and channel B in the D/A converter, respectively. The transferred data f or 2 phases are converted into analog data in the converter to be transferred to the CR motor dr iver ICs (IC19 and IC20), where the phase excitation current is determ ined for each m icro step of the motor. The minimum micro step 0.013 mm/step is enabled by 4-phase motor with 4W1-2 phase driven. The gate array E05B45 (IC16) sends phase data (PHASEA/B, ENAN/ENBN) directly to the CR motor driver ICs A3953 (IC19 and IC20) to control the excitation mode and rotational direction and amount of the motor. While the CR is in the home position or the printer is in the ink cartridge replacement mode, the 2-2 phase is driven in the low current hold mode to hold the m otor. Figure 2- 18 shows the  motor driver c ircuit block diagram.



to the

CPU

GA E05B45 (IC16)

CRDALD CRDASEL

CRTRG

CRDA0-5

PHASEA ENAN

PHASEB ENBN

CRV

D/A Converter (IC25)

RFBA OUTA RFBB OUTB

WR A/B

DB0-7

CR Motor Driver ICs A3953 (IC19,20)

PHASEA

ENABLE

REF

PHASEB

ENABLE

REF

Figure 2-18. CR Motor Block Diagram

OUTA

OUTB

OUTA

OUTB

CR Motor

CR A

CR B

2-2

Rev. A

EPSON Stylus COLOR 3000

2.3.2.4 PF Motor Driver Circuit

The  motor for this printer operates the following:



Paper loading



Paper feeding

The gate array E05B33 (IC6) outputs the phase drive control signals (PFAPH and PFBPH), phase data signal (PFA0/1 and PPFB1/0) and voltage reference data (PFV) to the driver IC UDN2917EB (IC17). The driver IC then controls the phase current based on the voltage refer ence data. T his sequenc e enables the micro step with a minimum of 1/720 inch at 2-2 phase.

E05B33 (IC6)

PFA0

PFA1

PFB0

PFB1

PFAPH

PFBPH

PFV FREF1/2

Figure 2-19. PF Motor Driver Circuit Block Diagram

UDN2917EB (IC17)

I10

I11

I20

I21

PH1

PH2

PF Motor

PF A

PF_A

PF B

PF_B

Rev. A

2-21

Operating Principles

2.3.2.5 Printhead Driver Circuit

This printer has 2 separate printhead driver circuits for the black and color printheads . Eac h cir cuit has the common voltage driver circuit attached to the circuit control board, and the nozzle selector circuit attached to the printhead. The each of the black and color common driver circuits is composed of the hybrid IC H8D2813E (IC22) and the terminal transistor. The black head nozzle selector circuit is com posed of the 128-bit transfer gate array IC IR2C72C, and the color head nozzle selector circuit consis ts of the 128-bit transfer gate array IC IR2C72C (for cyan and yellow) and 64-bit transfer gate array IC IR2C73C (for magenta). Printing data is separated into the common voltage signal and the nozzle selection signal at the gate array E05B33 (IC6) and is then transferred to the corresponding circuit. Figure 2-20 shows the printhead driver circuit block diagram.

E05B33 (IC6)

BCHG,BKC

BND0/1,BMD0/1

SBDATA

BHCLK

BHLAT

BA/BBHDATA

BHNCHG

VHPR

SCLK,SSTB,SCLR

CCHG,CKC

CND1/2,CMD1/2

SCDATA

CHCLK

CHLAT YHDATA CHDATA

MHDATA

CHNCHG

Common Driver

CN13

CN12

IR2C72C

COM

CLK

LAT SI

NCHG

VHV

IR2C72C

COM

CLK LAT S3 S1

NCHG

VHV

IR2C73C

COM

CLK

LAT

VHV

Black Head

Cyan Yellow

Magenta

C203 MAIN Control Circuit Board Head Boards

Figure 2-20. Prinrhead Driver Circuit Block Diagram

2-2

Rev. A

EPSON Stylus COLOR 3000

Common driver circuit for the black printhead



Gate array E05B33 (IC6) sends serial data to the head nozzle selector circuit on the printhead to select nozzles to be activated. Then the data is transferred to the common driver on the control board to drive all PZT that correspond to each nozzle. The operating principles for the black printhead is as follows:



Nozzle selector circui t Nozzles for the black printhead are divided into 2 rows with 64 nozzles on each, and 2 different types of nozzle selection signal (BAHDATA and BBHDATA) are sent in serial data to the corresponding row. Clock signal (BHCLK) is composed of the pulses from #1 to #64. The nozzles to be activated are determined by the nozzle selection signal synchronized with the clock signal by the latch signal (BHLAT). However, the pulse number and the selected nozzle number have no relevance.



Common driver circuit The common voltage () and the rank value are established to correspond to each of the black printhead characteristics. This value is stored in advance in the EEPROM when the printer power is off. At power on, the value is stored in the RAM. The gate array E05B33 (IC6) refers to this value when transferring the serial data SBDATA to the common driver circuit as the voltage control signals. The serial data transmission control signals (SCLK, SSTB and SCLR) are used for this operation. The thermistor controls the common voltage by outputting the signals to compensate for changes in ink viscosity.

BAHDATA BBHDATA

BHCLK

BHLAT

BHNCHG

BKC,BCHG

BND0/1 BMD0/1

Figure 2-21. Black Data Transmission Timing

Rank Value*

* Rank Value: The period of time in which the signal COM stays HIGH. Normal value is approximately 8 ms.

#64

Head Drive Voltage (VH)

Rev. A

2-2

Operating Principles

Color printhead nozzle selector circuit



The operating principle for the color printhead is the same as for the black printhead except that color print is performed with data for 3 different colors: yellow, cyan, and magenta. The operating principle for the color printhead is as described below:



Nozzle selector circui t The nozzles for the color printhead are divided into 3: for yellow, cyan, and magenta with 64 nozzles for each of them. The nozzle selection signals for each color (YHDATA for yellow, MHDATA for magenta and CHDATA for magenta) are sent simultaneously in serial data. The clock signal (CHCLK) is composed of the pulses from #1 to #64. The nozzle selection signal and the corresponding clock signal are synchronized by the latch signal (CHLAT) to determine the nozzle to use. However, the pulse number and the selected nozzle number have no relevance.



Common driver circuit The common voltage () and the rank value are established to correspond to each of the color printhead characteristics. This value is stored in advance in the

!

when the printer power is off. At power on, the value is stored in the RAM. The gate array E05B33 (IC6) refers to this value and outputs the serial data SCDATA to the common driver circuit as the voltage control signals. The serial data transmission control signals SCLK, SSTB and SCLR are used for this operation. The thermistor controls the common voltage by outputting the signals to compensate for changes in ink viscosity.

YHDATA

CHDATA

MHDATA

CHCLK

CHLAT

CHNCHG

CKC,CCHG

CND0/1 CMD0/1

Figure 2-22. Color Data Transmission Timing

Rank Value*

Rank value: The period of time in which the signal COM stays HIGH. Normal value is approximately 8 ms.

#64

Head Drive Voltage (VH)

2-2

Rev. A

EPSON Stylus COLOR 3000

Special printing

This printer has the following special printing m odes to print various types of graphic im ages. Each m ode is selected through the printer driver based on the selected type of the paper and print quality.



Double firing normal dot / Single dot printing mode This printer forms 1 dot with double ink ejection in the ANK or bitmap image mode. In the raster graphics mode which requires a high-resolution printing, however, forms 1 dot with a single ink ejection.



EPSON micro dot printing In this mode, the printer uses less ink to create sharper dots when high-resolution printing is required.

Table 2-11. Special Printing Availability

Paper Type 180 dpi 360 dpi 720 X 360 dpi 720 dpi 1440X720 dpi

Black printing for the raster data

 0 1)(23

4 0 1)(23

OHP sheet Glossy film

Plain paper

   

2-dot printing Normal dot

Color printing for the raster data

 0 1)(23

4 0 1)(23

OHP sheet Glossy film

Glossy paper

Plain paper

    

2-dot printing Normal dot

ANK, Bitmap image data

 0 1)(23

OHP sheet Plain paper

2-dot printing Normal dot

1-dot printing Normal dot



1-dot printing Normal dot



1-dot printing Normal dot





1-dot printing Normal dot



1-dot printing Normal dot

1-dot printing Normal dot 1-dot printing Normal dot



1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

1-dot printing

# ,-* *+

Rev. A

2-2

Operating Principles

2.4 Ink System Management

This section explains how the ink system is controlled to protect the printheads and to ensure high print quality. The ink system consists of following operations:



Power On



Initialization



Ink Cartridge Replacement



Cleaning



Print Start



Flushing



Waiting



False Absorption



Wiping



Rubbing



Micro Absorption



Carriage Lock

The printer also selects an ink sequence based on the printer condition by referring to the value f or the timer counter IC that has a back-up lithium battery and timer counter stored in the has following counters:



Protect Counter A



Ink Consumption Counter



One-time Flag

!

. The printer

2.4.1 Ink System Operations

The ink system operations are as described below.

Power on



Performed when the printer is turned on. It performs a cleaning sequence by referring to the counter value.

Initialization



Performed when the printer receives the initialization command. The  returns to the home position and holds during this operation.

Ink Cartridge Replacement



Performed through the control panel operation when the ink cartridge needs replacing. It determines whether the ink cartridge is installed or not and performs a cleaning sequence if necessary.

Cleaning



Performed to solve decline in print quality caused by the abnormal nozzle status such as nozzle clogging and inaccurate ink ejection.

Print Start



Performs the cleaning or flushing operation before the printer starts printing after power on.

Flushing



Performed to eject few ink dots during printing to prevent increase in ink viscosity.

Waiting



Performs the flushing operation after the printing operation to avoid nozzle clogging caused by the viscous ink.

False Absorption



Absorbs the ink inside the cap and eliminates the ink on the nozzle plate after ink is absorbed.

Rubbing



Performed to eliminate the ink and dust that adheres on the nozzle surface. Few dots of ink is absorbed to moisten the nozzle surface prior to this operation.

Micro Absorption



Performed to eject bubbles formed inside the cavity.

Carriage Lock



Locks the carriage when turning off the printer or no printing is performed for 5 minutes or more with the printer power on.

2-2

Rev. A

EPSON Stylus COLOR 3000

2.4.2 Counters

The EEPROM on the control board stores the values for the following counters to manage the ink system:

Protect Counter A



This counter counts total amount of drained ink. If the counter value exceeds 75,000, the maintenance error occurs and the current printing job stops as a result. (Refer to Section 1.5.8.) The occurrence of this error requires

1.5.1 and Chapter 3.) The current value for this counter can be found in the default setting mode. (Refer to Section 1.5.2.) To reset the counter, perform operation or the reset operation using the adjusting program.

Black/Color One-time Flag



This flag set in the charging is normally performed only when the user begins to use a new printer . It is, however, performed on the condition that the user needs to reinstall the ink cartridge which has been removed before transporting the printer some distance to avoid ink leakage. The procedure for the initial ink charge for this occasion is as follows:

1. Turn the printer on and remove the ink cartridges.

2. Turn the printer off, and the printer starts ejecting ink from the printheads and tubes to the waste ink drain pads.

3. After transportation, install the ink cartridges.

4. Turn the printer on, and the printer enters the initial ink charge mode.

!

clear operation and waste ink drain pad replacement. (Refer to Section

!

sets a limit to prevent frequent initial ink charge by users. The initial ink

clear through the control panel

Ink Consumption Counter



This counter accumulates the amount of ink used throughout the printing, cleaning, and flushing operations after a new cartridge is installed. The value is used to monitor the ink amount remaining in the ink cartridge. The counter value is reset when the ink cartridge is removed. This counter is normally reset with an ink low condition detected by the ink end sensor *. Then the Ink End error occurs when the counter exceeds the specified value.

Note) The ink end sensor detects an ink end condition when the remainder of the ink drops to 5 % of

the capacity.

CAUTION

Be sure to replace the waste ink drain pads when the



is reset.(Refer to Chapter 3.)

Rev. A

2-2

Chapter 3

Disassembly and Assembly

3.1 Overview................................................................................................................3-1

3.1.1 Precautions for Disassembling the Printer.......................................................................... 3-1

3.1.2 Tools........................................................................................................................................ 3-2

3.2 Disassembly and Assembly.................................................................................3-3

3.2.1 Upper Housing Removal........................................................................................................ 3-4

3.2.2 ROM Replacement.................................................................................................................. 3-6

3.2.3 CR PW (Paper Width) Sensor Board Assembly Removal................................................... 3-7

3.2.4 Printhead Removal................................................................................................................. 3-8

3.2.5 HP Sensor Removal ............................................................................................................. 3-10

3.2.6 Printer Mechanism Removal ............................................................................................... 3-11

3.2.7 PSB/PSE Board Assembly Removal................................................................................... 3-12

3.2.8 C203 MAIN Board Assembly Removal................................................................................3-13

3.2.9 Main Waste Ink Drain Pad Removal.................................................................................... 3-15

3.2.10 PL (Paper Length) Sensor Removal ................................................................................. 3-16

3.2.11 Printer Mechanism Disassembly.......................................................................................3-17

3.2.11.1 CR Motor Removal................................................................................................ 3-17

3.2.11.2 Pump Motor Assembly Removal ........................................................................... 3-18

3.2.11.3 PF Motor Assembly Removal................................................................................ 3-19

3.2.11.4 Front/Rear PE Sensor Removal............................................................................ 3-20

3.2.11.5 Release Sensor Removal...................................................................................... 3-21

3.2.11.6 Paper Eject Frame Unit Removal.......................................................................... 3-22

3.2.11.7 Pump Unit Removal...............................................................................................3-23

3.2.11.8 Edge Guide Unit Removal..................................................................................... 3-24

3.2.11.9 PQ (Paper Quantity) Sensor Board Assembly Removal ....................................... 3-26

3.2.11.10 ASF PW (Paper Width) Sensor Removal............................................................ 3-27

3.2.11.11 Ink Cartridge Holder Unit Removal...................................................................... 3-28

3.2.11.12 Ink Sensor Assembly Removal............................................................................3-30

3.2.11.13 Ink Cartridge Sensor Assembly Removal............................................................ 3-30

3.2.11.14 CR Unit Removal................................................................................................. 3-31

3.2.11.15 LD shaft Removal................................................................................................ 3-33

3.2.11.16 PF Roller Removal............................................................................................... 3-36

3.2.11.17 Rear Paper Guide Removal ................................................................................3-37

3.2.11.18 Middle Frame Unit Removal................................................................................ 3-38

EPSON Stylus COLOR 3000

3.1 Overview

This section describes the procedures for disassembling the printer. Unless otherwise specified, no assembly procedures are included, s ince it is usually performed by reversing the disass embly. Points to note at disassembling and assem bling is des cribed under the heading after assembling is described under the heading

3.3.1 before disassembling and assembling. Description in this chapter only refers to disassembly and assembly procedures for major units. Ther efore, refer to the exploded diagr ams and part list in Appendix regarding other units.

 

3.1.1 Precautions for Disassembling the Printer

The main control circuit of this printer is equipped with a lithium battery as a back-up battery for the tim er IC. Mishandling of this battery may lead to a short-circuit. Therefore see CAUTION carefully prior to disassembly and assembly.

CAUTION



Disconnect the power cable before disassembling or assembling the printer.



Wear goggles to protect your eyes from ink. If ink gets in your eye, flush it with fresh water and see a doctor immediately.



If ink comes in contact with your skin, wash it off with soap and water. If irritation occurs, contact a physician.



A lithium battery is installed on the main board of this printer. Be sure to observe the following instructions when servicing the battery:



Keep the battery away from any metal or other batteries so that electrodes of the opposite polarity do not come in contact with each other.



Do not heat the battery or put it near fire.



Do not solder on any part of the battery. (Doing so may result in leakage of electrolyte from the battery, burning, or explosion.)



Do not charge the battery. (An explosive may be generated inside the battery and cause burning or explosion.)



Do not dismantle the battery. (The gas inside the battery may hurt your throat. Leakage, burning, or explosion also may result.)



Do not install the battery in the wrong direction. (This may cause burning or explosion.)

 

. Read precautions in Section

. Adjustment required

CAUTION

Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer. Dispose of used batteries according t o government laws and regulations.

ATTENTION

Risque d’esplosion si la pile est remplacée incorrectment. Ne remplacer que par une pile fu mêmetype ou d’un type équivalent recommandé par le fabricant. Eliminer les piles déchargées selon lois e t les règles de sécurité en vigueur.

CAUTION



Never remove the ink cartridge from the carriage unless the manual specifies to do so.



When transporting the printer, be sure to remove ink cartridges before turning off the printer to let the printer enter the ink ejection mode.



Make sure that no cartridge is installed during transportation. (After transported, the printer automatically enters initial ink charge mode by turning on the printer after installing the ink cartridges.



Use only recommended tools for disassembling, assembling, or adjusting the printer.



Apply lubricants and adhesives as specified. (See Chapter 6 for details.)



Make adjustments specified when you disassemble the printer. (See Chapter 4 for details.)

Rev. A

3-1

Disassembly and Assembly

3.1.2 Tools

Make sure you use the tools listed in Table 3-1.

Table 3-1. Tools

Tools Distributor Part No.

Philips screwdriver #1 EPSON B743800400 Phillips screwdriver #2 EPSON B743800200 Standard screwdriver EPSON B743000100 Nippers EPSON B740500100 Thickness gauge set EPSON B776702201 Tweezers EPSON B741000100 Paper quantity detective adjusting tool EPSON 103679400 Paper width detective position tool (A4 In Paper width detective position tool (A4 Out) EPSON 103679600 Paper width detective position tool (B4 In) EPSON 103679900 Paper width detective position tool (B4 Out) EPSON 103680000 Paper width detective position tool (Letter In) EPSON 103680100 Paper width detective position tool (Letter Out) EPSON 103680200 B4 size tool EPSON 103679700 Letter size tool EPSON 103679800



EPSON 103679500

Rev. A

EPSON Stylus COLOR 3000

3.2 Disassembly and Assembly

This section describes procedures for disassembling and assembling the major units and parts.

CAUTION

Read CAUTION in Section 3.1.1 prior t o disassem bling t he printer.

Start

Upper Case Removal

Printer Mechanism Removal

Main Board Removal

Printer Mechanism Disassembly

CR Unit Removal

LD Roller Shaft Removal

ROM Replacement

Printhead Removal

PSB/PSE Board Removal

Ink Cartridge Holder Removal

Ink End Sensor Removal

HP Sensor Removal

Waste Ink Drain Pad Removal

PWS Paper Width Sensor Removal

PL Sensor Removal

Release Sensor Removal

Front/Rear PE Sensor Removal

Rev. A

PF Roller Shaft Removal

Rear Paper Guide Removal

Middle Frame Assembly Removal

Cartridge Sensor Removal

Edge Guide Unit Removal

Paper Quantity Sensor Removal

ASF PW Sensor Removal

Figure 3-1. Printer Disassembly Procedures

PF Motor Removal

CR Motor Removal

Pump Motor Removal

Paper Eject Frame Removal

Pump Unit Removal

Disassembly and Assembly

3.2.1 Upper Housing Removal

1. Remove the knob, tip of the PG adjust lever, rear sheet guide, stacker and paper support.

2. Using tweezers, release the hooks which fixes the tractor unit to the printer mechanism. Then remove the tractor unit by lifting up the rear part of the tractor unit.

Hook in the Tractor Unit

Tractor Unit

Tweezers

Front

Rear

Figure 3-2. Tractor Unit Removal

3. Open the ink cartridge cover and release the hooks fixing the panel unit to the upper housing by inserting the tweezers into the cutouts in the illustrated part of the panel unit. Then disconnect the connector cable for the panel unit from the panel unit and remove the panel unit.

Panel Unit

Upper Housing

Connector Cable for the Panel Unit

Tweezers

Ink Cartridge Cover

Figure 3-3. Panel Unit Removal

Rev. A

EPSON Stylus COLOR 3000

4. Remove 1 screw (CBS, 3X6) under the panel unit and 7 screws (CBP, 3X12) securing the upper housing to the lower housing.

5. Inserting tweezers from the bottom side of the lower housing, release 2 hooks fixing the upper housing to the lower housing. Then remove the upper housing by pulling it forward.

WORK POINT

When replacing the upper housing or printer cover, be sure to remove the label such as CAUTION and put it to the same position on the replaced part.

Gap Adjust Lever

CBP Screw (3x12)

Knob

CBP Screws (3X12)

Tractor Unit

Sheet Guide

Hook

Tweezers

CBS Screw (3X6)

Panel Unit

Upper Housing

Lower Housing

Hook

Figure 3-4. Upper Housing Removal

Rev. A

Disassembly and Assembly

3.2.2 ROM Replacement

1. Remove 2 screws securing the ROM cover to the bottom of the lower housing and rem ove the ROM cover.

2. Remove the ROM.

CAUTION

Be sure to disconnect the power cable from t he AC socket before replacing the ROM.

Rev. A

EPSON Stylus COLOR 3000

3.2.3 CR PW (Paper Width) Sensor Board Assembly Removal

1. Remove the upper housing. (See Section 3.2.1.)

2. Remove 2 screw (CBP, 3X8) and 2 plain washer (3X0.5X7) securing the damper cover to the CR unit.

Note) If the any ink cartridge is installed, remove it to avoid ink leakage during disassembly and

assembly.

3. Remove the damper cover.

4. Inset tweezers into the small cutout inside the CR unit to push the notch. Then remove the CR PW sensor cover covering the black and color cables by pulling it up.

5. Remove the CR PW sensor board assembly from the black head cable.

Plain Washer (3X0.5X7)

CBP Screws (3x8)

Damper Cover

Plain Washer (3X0.5X7)

CR PW Sensoe Cover

Notch

CR PW Sensor Board Assembly

CR PW Sensor Connector Cable for the Black Head

CR Unit

Figure 3-5. CR PW Sensor Board Assembly Removal

Rev. A

Disassembly and Assembly

3.2.4 Printhead Removal

1. Remove the upper housing. (See Section 3.2.1.)

2. Remove 2 screw (CBP, 3X8) and 2 plain washer (3X0.5X7) securing the damper cover to the CR unit.

Note) If any ink cartridge is installed, remove it to avoid ink leakage during disassembly and

assembly.

3. Remove the damper cover.

4. Remove the PW sens or cover securing the black and color head cables to the CR unit. T hen release the black and color head cables. (See Section 3.2.3.)

5. Remove 1 leaf spring securing the ink tubes to the CR unit. Then remove the tubes from the CR unit.

CAUTION

The tube clamp in the CR unit is breakable .Therefore do not force the clam p to remove the tubes.

6. Remove each tube from the head along with the damper assembly.

WORK POINT

Be careful handling the damper assembly so that the ink doesn’t leak.



Make sure that you connect each color tube to the cor r esponding color ink car tridge.



7. Remove the black and color head cables.

8. Remove 2 compression springs from the printhead units.

9. Remove 2 head fixing screws and plain washers, then remove the printheads by pulling them forward.

WORK POINT

When removing the black head, be sure not t o cat ch the color head cable.



When disconnecting the black/color head cables from the CR unit, be careful not to



damage it. Be sure to connect the black head cable to the black head which is already installed to the CR unit.

When installing the head cables to the CR unit thr ough the tube clamp, be sure to f it the



square cutouts on the tube cover to the t ube clam p, as shown in Figure 3-6.

REQUIRED ADJUSTMENT

After replacing the head, perform necessary adjustments. (See Chapter 4.)



Rev. A

EPSON Stylus COLOR 3000

Tube Cover

Compression Spring (9.9)

Color Printdead Cable

Tube Fixing Leaf Spring

Plain Washer (6.3X0.2X8.3)

Head Fixing Screw

Damper Assembly for Black Ink

Damper Assemblies for Color Inks

Color Printhead

Black Printhead

Head Fixing Screw

Plain Washer (6.3X0.2X8.3)

Black Printhead Cable

CR PW Sensor Board Assembly

Tube Clamp

CR Unit

Figure 3-6. Black/Color Head Removal

Rev. A

Disassembly and Assembly

3.2.5 HP Sensor Removal

1. Remove the upper housing. (See Section 3.2.1.)

2. Disconnect the connector cable for the HP sensor from the sensor connector.

3. Using tweezers, release the hook securing the HP sensor to the HP sensor holder and rem ove the HP sensor.

HP Sensor Holder

HP Sensor Connector Cable

Tweezers

HP Sensor

Figure 3-7. HP Sensor Removal

HP Sensor Holder

HP Sensor

3-1

Rev. A

EPSON Stylus COLOR 3000

3.2.6 Printer Mechanism Unit Removal

1. Remove the upper housing. (See Section 3.2.1)

2. Disconnect the following connector cables from the connectors on the main board assembly: CN3 CN4 CN 5 CN6 CN7 CN10 CN11 CN12 CN13 CN14 CN18 CN20 CN21 CN22 CN23

3. Disconnect the ASF PW sensor connector cable from the PW sensor connector on the left edge guide

of the ASF assembly.

4. Remove 7 screws (6 CB screws, 4X14 and 1 CBP screw, 3X8) securing the printer mechanism unit to

the lower housing.

CAUTION

The connectors for the motor ( CN20,22 and 23) and for the ink car tridges (CN7, 12, 13 and

14) look similar. Therefore, be sure to connect them proper ly, since inappropriate connection may result in malfunction of t he PSE/ PSB boar d or the main control board.

WORK POINT

Be sure to lubricate the top surface of the paper eject frame in an ASP printer



mechanism unit, since the frame, along which the CR unit slides, is not lubricated. After installing the printer mechanism unit to the lower housing, be sure to insert the



waste ink draining tubes linking to the pump unit int o the sub waste ink drain pads. (See Section 3.2.11.7.)

REQUIRED ADJUSTMENT

After replacing the printer mechanism unit, perform required adjustments to write



appropriate values such as head data and several adjustment values into t he EEPROM on the main control board. (See Chapter 4. )

CB Screws (4X14)

Paper Eject Frame

ASF PW Sensor

ASF PW Sensor Connector Cable

Printer Mechanism Unit

CB Screws (4X14)

CBP Screw (3X8)

Rev. A

Lower Housing

Figure 3-8. Printer Mechanism Unit Removal

3-1 1

Disassembly and Assembly

3.2.7 PSB/PSE Board Assembly Removal

1. Remove the upper housing. (See Section 3.2.1.)

2. Remove the printer mechanism unit. (See Section 3.2.6.)

3. Remove 7 screws (6 CBS screws , 3X8 and 1 CBP sc r ew, 3X12) securing the upper shield plate to the lower housing.

4. Disconnect the power cable and connector cable for the main board assem bly from the CN1 and CN2, respectively.

5. Remove 4 screws (CBS, 3X6) securing the PSB/PSE board assembly to the lower housing, then remove the PSB/PSE board.

WARNING

After disconnecting the power cable from the AC socket , never disconnect t he cable from



the CN1 for about 5 minutes, since the capacitor on the C172 PSB/PSE board is still discharging electricity.

CBS Screws (3X6)

Upper Shield Plate

CBS Screw (3X6)

CBP Screw (3X12)

CBS Screws (3X6)

CN2

PSB/PSE Board Assembly

CN1

Figure 3-9. PSB/PSE Board Removal

3-1

Rev. A

EPSON Stylus COLOR 3000

3.2.8 C203 MAIN Board Assembly Removal

1. Remove the upper housing. (See Section 3.2.1.)

2. Remove the printer mechanism unit. (See Section 3.2.6.)

3. Remove the connector cable for the ASF PW sensor from the CN8 on the main board assembly.

4. Remove the connector cable for the PL (Paper Length) sensor from the CN11 on the main board assembly.

5. Remove the connector cable for the PNL board from the CN17 on the main board assembly.

6. Remove the connector cable for the PSB/PSE board from the CN15 on the main board assembly.

7. Rem ove 7 screws (6 CBS screws, 3X8 and 1 CBP screw, 3X12) securing the upper shield plate to the lower housing.

8. Remove 2 screws (CBS, 3X6) securing the upper connector cover to the lower housing at the back , then remove the upper connector cover.

9. Rem ove 10 screws (8 CBS scr ews, 3x6 and 2 CP screws, 3X6) securing the m ain board assem bly to the lower housing.

10. Remove the earth spring ;B.

11. Remove Type-B interface board guide from the main board assembly.

12. Remove the main board assembly.

CAUTION

The connectors for the motor ( CN20,22 and 23) and for the ink car tridges (CN7, 12, 13 and

14) look similar. Therefore, be sure to connect them proper ly, since inappropriate connection may result in malfunction of t he PSE/ PSB boar d or the main control board.

REQUIRED ADJUSTMENT

When the main board assembly is replaced, reset EEPROM prior to other adjustments to avoid failure such as bugged data.

WARNING

Be careful in servicing the lithium battery. (See Section 3.1.1.)



Pay attention to the sharp edges of the upper shield plate.



Rev. A

3-1

Disassembly and Assembly

Type-B I/F Board Guide

Earth Spring for Type-B I/F

CBS Screws (3X8)

Main Board Assembly

CBS Screws (3X8)

ASF PW Sensor Connector Cable

ASF PL Sensor Connector Cable

CBS Screw (3X8)

CN8

CBS Screw (3X8)

CN15

CBS Screw (3X8)

CP Screws (3X6)

CBS Screws (3X8)

CN11

CN17

Lower Housing

Upper Connector Cover

Figure 3-10. C203 MAIN board Removal

3-1

Rev. A

EPSON Stylus COLOR 3000

3.2.9 Main Waste Ink Drain Pad Removal

Note) In case the value for the protect counter A* has reached the limit and the maintenance error is

indicated, or the value has exceeded 60,000, replace the waste ink drain pads on the agreement with your customer. *: The value for the protect counter A can be found on the sheet printed during the default setting mode. (Refer to Chapter 1, Section 1.5.2.1.)

1. Perform EEPROM reset. (See Section 1.5.1 in Chapter 1.)

2. Remove upper housing. (See section 3.2.1.)

3. Remove the printer mechanism unit. (See Section 3.2.6.)

4. Remove the main waste ink drain pads. (See Section 3.2.9.)

WORK POINT

Current value for the protect counter A is shown along with the RO M version number on t he test print sheet (1st line on the t op page) printed in the default setting mode. (See Section

1.5.2.)

Cartridge Holder Unit

Waste Ink Drain Pad

Lower Housing

Figure 3-11. Main Waste Ink Drain Pad Removal

Rev. A

3-1

Disassembly and Assembly

3.2.10 PL (Paper Length) Sensor Removal

1. Remove the upper housing. (See section 3.2.1.)

2. Remove the printer mechanism unit. (See Section 3.2.6.)

3. Disconnect the connector cable for the PL sensor from the CN11 on the main board assembly.

4. Using tweezers, release 3 hooks securing the PL sensors to the lower housing.

WORK POINT

Make sure you connect each connector cable to the appropr iate connector paying attention to the cable length which locates the proper connect or.

Connector Switches

Figure 3-12. PL Sensor Removal

Lower Housing

3-1

Rev. A

EPSON Stylus COLOR 3000

3.2.11 Printer Mechanism Disassembly

Section 3.2.11.1 thorough to Section 3.2.11.18 describe procedures for printer mechanism unit disassembly.

3.2.11.1 CR Motor Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Dismount the belt tension spring to loosen the timing belt.

3. Remove the timing belt from the pulley on the CR motor.

4. Release the joint f or the CR m otor and base fr ame ass embly by turning the motor countercloc kwise in the order shown by the steps 1 to 3 in Figure 3-13. Then remove the CR m otor by pulling it toward the bottom edge of the base frame assembly.

CR Motor

CR Motor Pulley

Base Frame Assembly

Belt Tension Spring

Timing Belt

Figure 3-13. CR Motor Removal

CAUTION

CR motor fan and CR motor assembly are 2 separ ate par ts. Theref ore be sur e to mount t he CR motor fan with specified adhesive when replacing the CR motor. Make sure that you leave some portion of 0 to 2 mm on the end of the CR motor shaft, as shown in Figure 3-14.

CR Motor Assembly

Shaft End :0~2 mm

Adhesion

Indent side facing outward

CR Motor Fan

Figure 3-14. Adhering the CR Motor Fan to the CR Motor

Rev. A

3-1

Disassembly and Assembly

3.2.11.2 Pump Motor Assembly Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the connector cable for the pump motor assembly securing the pump motor to the printer mechanism unit from the clump.

3. Rem ove 2 screws (CBS, 3x6) securing the pump m otor assembly to the sub frame as sembly. Then remove the pump motor assembly.

CBS Screws (3X6)

Pump Motor Assembly

Sub Frame Assembly

Figure 3-15. Pump Motor Assembly Removal

3-1

Rev. A

EPSON Stylus COLOR 3000

3.2.11.3 PF Motor Assembly Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the connector cable for the PF motor assembly from the clump attached to the printer mechanism unit.

3. Rem ove 2 screws (CBS, 3x6) securing the PF motor assem bly to the left fram e unit. Then rem ove the PF motor assembly.

WORK POINT

The PF motor pinion gear is made precise and easy to rust. Therefore, be careful not to touch it with your bare hands or bump it against other objects.

CBS Screws (3x6)

PF Motor Assembly

Left Frame Unit

Figure 3-16. PR Motor Assembly Removal

Rev. A

3-1

Disassembly and Assembly

3.2.11.4 Front/Rear PE Sensor Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Using tweezers, release 2 hooks securing the front and rear PE sensors to the rear paper guide assembly at the bottom of the printer mechanism unit. Then remove the sensors.

3. Disconnect the sensor connector cables from the sensor connectors.

Rear Paper Guide Assembly

Connector Cable for the Rear PE Sensor

Rear PE Sensor

Connector Cable for the Front PE Sensor

Figure 3-17. Front/Rear PE Sensor Removal

Hooks

Front PE Sensor

3-2

Rev. A

EPSON Stylus COLOR 3000

3.2.11.5 Release Sensor Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Using tweezers, releas e 1 hook securing the release sensor to the left fr ame unit. Then rem ove the release sensor.

Release Sensor

Release Sensor Connector Cable

Figure 3-18. Release Sensor Removal

Left Frame Unit

Hook

Rev. A

3-21

Disassembly and Assembly

3.2.11.6 Paper Eject Frame Unit Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove connector cables for the HP sensor and cover open sensor from the connectors on the sensors.

3. Remove 4 screws (CBS, 3X6) securing the paper eject frame unit to the printer mechanism unit.

4. Remove the paper eject fram e unit from the printer m echanism unit by releasing the joint with the CR unit.

WORK POINT

When removing the paper eject frame unit, insert a piece of clean paper or equivalent between the platen surface in the paper eject frame unit and printheads in the CR unit to protect the printheads.

CBS Screws (3X6)

Paper Ejecft Frame Unit

CBS Screws (3X6)

Printer Mechanism Unit

Figure 3-19. Paper Eject Frame Unit

3-2

Rev. A

EPSON Stylus COLOR 3000

3.2.11.7 Pump Unit Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the paper eject frame unit. (See Section 3.2.11.6.)

3. Remove 2 screws (1 CBS, 3X6 and 1 CBP, 3X 8) s ec uring the pump unit to the printer mechanis m unit. Then remove the pump unit.

Head Cleaner

CBS Screws (3X6)

Pump Unit

Head Cleaner Lever (See Secction 3.2.11.14, Step 6.)

Draining Pipe

ASF Transmission Frame Unit

Sub Waste Ink Drain Pad

Right Main Frame

CBP Screw (3X8)

Figure 3-20. Pump Unit Installation

WORK POINT

When installing the head cleaner to the pump unit , f ace the rubber part of the clear t o t he



pump side, as shown in Figure 3-20. When installing the pump unit, place the tubes into the cutout fir st and t hen insert t he sub



waste ink pads to set the tubes between them.

Rev. A

3-2

Disassembly and Assembly

3.2.11.8 Edge Guide Unit Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Release the joints for the slide covers on the LD shaft and the edge guides.

3. Disconnect the connector cable for the PQ (Paper Q uantity) sensor loc ated at the r ight s ide of the r ight edge guide.

4. Remove 1 screw (CBS, 3X8) securing the ink cartridge holder to the m iddle frame so that the flange nut under the cartridge holder will be removed easily in the next step.

5. Rem ove 2 flange nuts (M4) sec uring the edge guide unit to the left fr ame as sembly and m iddle fram e unit. Then remove the edge guide unit.

Flange Nut

LD Shaft

Slide Covers

CBS Screw (3X8)

Cartridge Holder Unit

Flange Nut

Rotary Damper

Edge Guide Unit

Figure 3-21. Edge Guide Unit Removal

WORK POINT

When installing the edge guide unit to the printer mechanism unit, engage the rack on the edge guide unit with the pinion on the damper.

3-2

Rev. A

EPSON Stylus COLOR 3000

WORK POINT

When installing the edge guide unit to the print er m echanism unit, engage the edge guide



unit with the main bottom frame, as shown in Figure 3-22. Be sure to fix the flange nuts with the specif ied adhesive. ( See Chapt er 6.)



Bottom Main Frame

Spring

Rear

Edge Guide Unit

Front

Figure 3-22.

Joining the Edge Guide Frame and Bottom Main Frame

Rev. A

3-2

Disassembly and Assembly

3.2.11.9 PQ (Paper Quantity) Sensor Board Assembly Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the edge guide unit. (See Section 3.2.11.8.)

3. Remove 2 pan camera screws (2X5.5) securing the PQ sensor cover to the edge guide unit.

4. Remove 1 tension spring securing the PQ sensor sub lever to the PQ sensor, and remove the PQ sensor sub lever.

5. Remove 1 pan cam era 1B tight screw (2X3.5) securing the PQ sensor to the right edge guide. Then remove the PQ sensor board assembly.

CAUTION

Do not apply too much torque when tightening the screws. Otherwise, the threads of the tapped holes in the edge guide unit might crush.

PQ Sensor Lever Assembly

PQ Sensor Board Assembly

Right Edge Guide

Tension Spring (0.84)

PQ Sensor Sub Lever

PQ Sensor Cover

Pan Camera Screw 1 (2X5.5)

Pan Camera 1B Tight Screw (2X3.5)

Figure 3-23. PQ Sensor Removal

3-2

Rev. A

EPSON Stylus COLOR 3000

3.2.11.10 ASF PW (Paper Width) Sensor Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the edge guide unit. (See Section 3.2.11.8.)

3. Using a screwdriver or other pointing tool, release 1 hook securing the ASF PW sensor cover to the left edge guide unit. Then remove the PW sensor cover by opening it in 2 steps shown in Figure 3-24.

4. Remove the ASF PW sensor.

WORK POINT

After placing the printer mechanism unit back on the lower housing, connect the PW



sensor connector cable to the PW sensor f irs t . Then attach the ASF PW sensor cover. When mounting the PW sensor, fit the actuator of the PW sensor into the groove on the



PW sensor sliding plate.

ASF PW Sensor Cover

ASF PW Sensor Board Assembly

ASF PW Sensor Connector Cable

Left Edge Guide

Groove on the Sliding Plate

Figure 3-24. PW Sensor Removal

Rev. A

3-2

Disassembly and Assembly

3.2.11.11 Ink Cartridge Holder Unit Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the paper eject frame unit. (See Section 3.2.11.6.)

3. Remove the pump unit. (See Section 3.2.11.7.)

4. Release 4 coupling screws (M6) connecting each ink tube unit to the corresponding ink cartridge holder unit, then disconnect the tubes.

5. Remove 4 screws (CBS, 3x6) securing the ink cartridge sub plate to the ink cartridge holder units. Then remove the sub plate.

6. Rem ove following screws securing the ink cartridge holder units to the ink car tridge fixing plate, and remove the ink cartridge holder units. (See CAUTION below.)

2 screws (CBP, 3X8) from each of the black, magenta and yellow cartridge holders 3 screws (2 CBP screws ,3x8 and 1 CBS screw, 3X6) from cyan ink cartridge holder

CAUTION

When removing one of the cartridge holders, you need to remove all cartr idge holders on



its right, since they are laid on top of the lef t in the order of yellow magenta cyan and black from left. For instance, you must remove the black, cyan and magenta ink cartridge holders to remove the yellow ink cartridge holder.

Be careful when tightening the coupling screw, since the threads in the cartridge is



breakable.

WORK POINT

Note that the coupling screw compresses t he tube fixing O-ring to prevent ink leakage.



Therefore, be sure to install them in the appropriate order, as follows:

1) Insert t he tube to the coupling screw.

2) Insert t he tube to the O-ring. When installing the ink cartridge holders, f it each ink car tridge holder to the supporting



point of the cartridge holder on its left . ASP ink cartridge holder assembly has a protection tube, which must be removed once



the ASP ink cartridge is installed.

3-2

Rev. A

EPSON Stylus COLOR 3000

Yellow

Ink Cartridge Supporting Plate

Cartridge Holder Unit

CBP (3X8)

CBS Screw (3x6)

Coupling Screw (M6)

Ink Tube Unit

CBP (3X8)

Tube Fixing O-Ring

CBP (3X8)

CBS Screw (3x6)

Magenta

Cyan

Ink Cartridge Fixing Plate

Black

Figure 3-25. Ink Cartridge Holder Removal

Rev. A

3-2

Disassembly and Assembly

3.2.11.12 Ink Sensor Assembly Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the paper eject frame unit. (See Section 3.2.11.6.)

3. Remove the pump unit. (See Section 3.2.11.7.)

4. Remove the ink cartridge holders. (See Section 3.2.11.11.)

5. Remove the ink sensor connector cables from the clump on the ink cartridge holder mounting plate.

6. Remove 1 scr ew (CBS, 3X10) securing the ink sens or assembly to the ink cartridge holder mounting

plate. Then remove the ink sensor assembly.

3.2.11.13 Ink Cartridge Sensor Assembly Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Remove the paper eject frame unit. (See Section 3.2.11.6.)

3. Remove the pump unit. (See Section 3.2.11.7.)

4. Remove the ink cartridge sensor connector cables from the clump on the ink cartridge holder .

5. Remove the ink cartridge holder unit. (See Section 3.2.11.11.)

6. Remove 2 scr ews (CB, 3X10) securing the pin holder to the pin holder assembly and 2 hexagon nuts (M3). Then remove the pin holder.

7. Remove 1 pan camera B tight screw (2X10) securing the ink cartridge sensor assembly to the pin

holder. Then remove the ink cartridge sensor assembly.

Pan Camera B Tight Screw (2X10)

Ink Cartridge Sensor Assembly

Hexagon Nuts (M3)

Pin Holder

Figure 3-26. Ink Sensor /Ink Cartridge Sensor Assembly Removal

Pin Holder Assembly

Ink Cartridge Holder Fixing Plate

CB Screws (3X10)

Ink Sensor Assembly

CBS Screw (3X10)

3-3

Rev. A

EPSON Stylus COLOR 3000

3.2.11.14 CR Unit Removal

1. Remove the printer mechanism unit. (See Section 3.2.6.)

2. Disconnect the HP sensor connector cable from the HP sensor.

3. Remove the belt tension spring to loosen the timing belt.

4. Disengage the timing belt from the pulley on the CR motor and the sub pulley.

5. Remove 1 E-ring and 1 plain washer (6X0.7X12) from each end of the CR guide shaft.

6. If the head cleaner lever* is locking the CR unit, push the lever down manually to unlock the CR unit. * Head cleaner lever: See Figure 3-20.

7. Remove 1 scr ew (CBS, 3X6) and 2 CR mounting shafts s ecuring the black and the color cables with the head cable guide to the base frame assembly. Then remove the head cable guide and tube

mounting plate, and remove the ink tubes from the printer mechanism.

8. Release the coupling screws connecting the ink tubes to the ink tube unit. Then remove the tubes.

9. Turn the parallelism adjust bushings joining the CR guide s haft to the right and left fram e assemblies and release the bushings. Then remove the CR unit along with the CR guide shaft.

10. Remove the CR guide shaft from the CR unit.

Parallelism Adjust Bushing

E-ring

Plain Washer (6X0.7X12)

CR Mounting Shafts

CBS Screw (3X6)

Cable Head Guide

CR Guide Shaft

Printer Mechanism Unit

CR Unit

Figure 3-27. CR Unit Removal

Tube Mounting Plate

HP Sensor Holder

PG Adjust Lever

E-ring

Plain Washer (6X0.7X12)

Parallelism Adjust Bushings

Rev. A

3-31

Epson 3000 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRECAUTIONS

PREFACE

TABLE OF CONTENTS

Product Descriptions

1.3 Specification

Operating Principles

Disassembly and Assembly