Epson Stylus 600 Service Manual

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EPSON

EPSON Stylus Color 600

SERVICE MANUAL

COLOR INK-JET PRINTER

SEIKO EPSON CORPORATION

4007367

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 result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by WARNING Headings. Signals a precaution which, if ignored, could result in damage to equipment.

WARNING

1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL. DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CO NNECTED, USE EXT REME CAUT ION IN W O RKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

CAUTION

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED O NLY BY EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT T HE SOURCE VOLT AGE IS THE SAME AS T HE RATED VOLT AGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT T HE EPSON PRODUCT HAS BEEN DISCONNECT ED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

PREFACE

This manual descr ibes functions , theory of electrical and m echanical operations , maintenanc e, and repair of EPSON Stylus Color 600. The instructions and procedur es included herein are intended for the experience r epair technician, and attention should be given to die precautions on the preceding page. The Chapters are organized as follows:

CHAPTER 1. GENERAL DESCRIPTION

Provides a general product overview, lists specifications, and illustrates the main components of the printer.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of printer operation.

CHAPTER 3. DISASSEMBLY AND ASSEMBLY

Includes a step-by-step guide for product disassembly and assembly.

CHAPTER 4. ADJUSTMENT

Includes a step-by-step guide for adjustment.

CHAPTER 5. TROUBLESHOOTING

Provides EPSON-approved techniques for troubleshooting.

CHAPTER 6. MAINTENANCE

Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.

APPENDIX

Describes connector pin assignments, circuit diagrams, circuit board component layout and exploded diagram.

The contents of this manual are subject to change without notice.

REVISION SHEET

Revision Issued Data Contents

Rev. A February 20,1997 First issue

TABLE OF CONTENTS

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

Chapter 1

Product Descriptions

1.1 Features....................................................................................................................1

1.2 Specifications..........................................................................................................2

1.2.1 Printing Specification................................................................................................................ 2

1.2.2 Paper Specification ................................................................................................................... 5

1.2.2.1 Cut Sheet...................................................................................................................... 5

1.2.2.2 Transparency Film / Glossy Paper............................................................................... 5

1.2.2.3 Envelope....................................................................................................................... 5

1.2.2.4 Index Card.................................................................................................................... 5

1.2.3 Adjust Lever Settings (PG adjust lever).................................................................................. 6

1.2.4 Printable Area ............................................................................................................................ 7

1.2.4.1 Cut Sheet...................................................................................................................... 7

1.2.4.2 Envelope....................................................................................................................... 8

1.2.5 Environmental Condition.......................................................................................................... 9

1.2.6 Ink Cartridge Specifications................................................................................................... 10

1.2.6.1 Black Ink Cartridge.....................................................................................................10

1.2.6.2 Color Ink Cartridge.....................................................................................................11

1.2.7 Physical Specification............................................................................................................. 12

1.2.8 Electric Specification .............................................................................................................. 13

1.2.9 Reliability.................................................................................................................................. 13

1.2.10 Safety Approvals ................................................................................................................... 13

1.2.11 Acoustic Noise....................................................................................................................... 13

1.2.12 CE Marking............................................................................................................................. 13

1.2.13 Printer Language and Emulation......................................................................................... 14

1.3 Interface..................................................................................................................16

1.3.1 Parallel Interface (Forward Channel)..................................................................................... 16

1.3.2 Parallel Interface (Reverse Channel)..................................................................................... 17

1.3.2.1 Prevention Hosts from Data Transfer Time-out......................................................... 19

1.3.3 Serial Interface......................................................................................................................... 20

1.4 Control Panel .........................................................................................................21

1.4.1 Indicators.................................................................................................................................. 21

1.4.2 Panel Functions....................................................................................................................... 22

1.4.3 Printer Condition and Panel Status....................................................................................... 23

1.5 Error Status............................................................................................................24

1.5.1 Ink Out ...................................................................................................................................... 24

1.5.2 Paper Out.................................................................................................................................. 24

1.5.3 Paper Jam................................................................................................................................. 24

1.5.4 No Ink-Cartridge Error............................................................................................................. 25

1.5.5 Maintenance Request.............................................................................................................. 25

1.5.6 Fatal Errors............................................................................................................................... 25

1.6 Printer Initialization ...............................................................................................26

1.6.1 Initialization Settings............................................................................................................... 26

1.7 Main Components.................................................................................................27

1.7.1 Printer Mechanism................................................................................................................... 27

1.7.2 C200 MAIN Board..................................................................................................................... 28

1.7.3 C206 PSB/PSE Board...............................................................................................................29

1.7.4 C206 PNL Board....................................................................................................................... 29

Chapter 1 Product Description

1.1 Features

EPSON Stylus Color 600 is designed for low price for that high performance. The major printer features are;

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High color print quality

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1440(H) x 720(V) dpi printing

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Standard 4 color printing (CMY+Bk)

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Traditional and New Microwave control to eliminate banding

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Built-in auto sheet feeder

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Holds 100 cut-sheets (64g/‡u)

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Holds 10 envelopes

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Holds 10 transparency films

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Holds 65 special papers

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High-speed print

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200cps (at LQ/10CPI; No-Draft mode)

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By driving the printhead at frequency; 14.4KHz, printing speed is twice faster than Stylus Color.

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Compact size

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Non-operating : 429mm(W) x 275mm(D) x 168mm(H)

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Operating : 429mm(W) x 613mm(D) x 309mm(H)

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Weight : 5.2Kg (without cartridge)

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Acoustic noise

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Approximately 47dB(A)

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Two built-in standard I/F

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Bi-directional Parallel I/F (IEEE-1284 level 1 device)

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Serial I/F (Macintosh-compatible / up to 900Kbps)

The table below shows consumable for EPSON Stylus Color 600.

Table 1-1 Available Consumable

Item Code Remark

Black Ink Cartridge S020093 Color: Black Color Ink Cartridge S020089 Color: Cyan/Magenta/Yellow EPSON 360 dpi Ink Jet Paper S041025 Size: A4(200 sheets) EPSON 360 dpi Ink Jet Paper S041059 Size: A4(100 sheets) EPSON 360 dpi Ink Jet Paper S041060 Size: Letter(100 sheets) Photo Quality Ink Jet Paper S041026 Size: A4(200 sheets) Photo Quality Ink Jet Paper S041061 Size: A4(100 sheets) Photo Quality Ink Jet Paper S041062 Size: Letter Photo Quality Ink Jet Paper S041067 Size: Legal Photo Quality Glossy Paper(New Release) S041126 Size: A4 Photo Quality Glossy Paper(New Release) S041124 Size: Letter Photo Quality Glossy Film S041071 Size: A4 Photo Quality Glossy Film S041072 Size: Letter Photo Quality Glossy Film S041107 Size: A6 Ink Jet Transparencies S041063 Size: A4 Ink Jet Transparencies S041064 Size: Letter Photo Quality Ink Jet Card S041054 Size: A6 Photo Quality Ink Jet Card S041121 Size: 5 x 8 inches Photo Quality Ink Jet Card S041122 Size: 10 x 8 inches Photo Quality Self Adhesive Sheet S041106 Size: A4

Rev. A

1-1

EPSON Stylus Color 600

1.2 Specifications

This section describes the product specifications for EPSON Stylus Color 600.

1.2.1 Printing Specification

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Print method

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On-demand color ink jet printing

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Nozzle configuration

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Black: 64 nozzles (32 nozzles x2 staggered / Nozzle pitch = 180dpi/vertical) Color: 32 nozzles (per color (CMY) / Nozzle pitch = 90dpi/vertical)

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Print Direction

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Bi-directional printing with logical seeking for text and graphics

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Print Buffer: 32KBytes

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Print speed and Printable Columns

Table 1-2 Print Speed (Text Mode)

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Character Pitch Printable

Column

Draft Speed

(CPS)

10 CPI (Pica) 80 400 200 12 CPI (Elite) 96 480 240 15 CPI 120 600 300 17 CPI (Pica Condensed) 137 684 342 20 CPI (Elite Condensed) 160 800 400

Table 1-3 Print Speed (Raster Graphics Mode)

Horizontal Resolution Printable

Available Dot CR Speed

Area

180 dpi 8.26 inch 1488 20 360 dpi 8.26 inch 2976 20 720 dpi 8.26 inch 5952 20

Nozzle arrangement: See figure below.

320/360" (22.5778mm)

144/360" (10.16mm)

32/360" (2.2578mm)

#64

#63

#32 #32 #32

32/360" (2.2578mm)

LQ Speed

(CPS)

(IPS)

Paper feed

direction

180dpi

Black Cyan Magenta Yellow

*Viewed from the back of the head

#1 #1 #1

90dpi

Figure 1-1. Nozzle Layout

Rev. A

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Paper Feeding Method

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Friction feed with built in ASF (Auto Sheet Feeder)

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Line Spacing

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1/6 inch or programmable at 1/360 inch

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Paper Path

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Top entry (from ASF) only

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Feeding Speed

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66.6 ms (at 1/6 inch line-feed)

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3.0 inch/sec (76.2 mm/sec / at continuous-feed)

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ASF Capacity

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Size :Index card to Legal

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Thickness *1 :Less than 8mm

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Paper capacity *2 :Normal cut sheets =100 sheets (64g/m

:Envelops =10 :Coated papers (360dpi) =65 :Coated papers (720dpi) =65 :Glossy papers *3 *4 =30 :Transparency films *4 =30 :Index cards *4 =30

Notes) *1: Total thickness of paper stack on the ASF.

*2: Those numbers above should be considered as reference. The actual paper accumulation

should be considered first.

*3: Only when the top margin is set for 30mm with A4/Letter size paper, otherwise only one sheet

can be set at a time.

*4: Specified paper must be set at the bottom of stack to ensure proper feeding operation:

Chapter 1 Product Description

)

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Normal paper =Glossy paper, Transparency film

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Card Board =Index card (The one packed with the index card package)

Rev. A

EPSON Stylus Color 600

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Control Code

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ESC/P2 and expanded raster graphics code

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EPSON Remote command

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Character Tables Legal and 14 international character sets

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Standard version: 11 character tables (See Table 1-4 for details)

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NLSP version: 19 character tables (See Table 1-4 for details)

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Typeface *1

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Bit map LQ font: EPSON Roman (10/12/15 CPI, Proportional)

EPSON Sans Serif (10/12/15 CPI, Proportional) EPSON Courier (10/12/15 CPI) EPSON Prestige (10/12/15 CPI) EPSON Script (10/12/15 CPI)

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Scaleable font: EPSON Roman (10.5 pt, 8 to 32 pt (every 2 pt))

EPSON Sans Serif (10.5 pt, 8 to 32 pt (every 2 pt)) EPSON Roman T (10.5 pt, 8 to 32 pt (every 2 pt)) EPSON Sans Serif H (10.5 pt, 8 to 32 pt))

Note) *1: Each typeface has four different font style; Normal, Bold, Italic and Bold-Italic.

Table 1-4 Character Table and Typeface

Version Character Table Bit-map Font Scaleable Font

Common EPSON - ;

Roman Sans Serif Courier Prestige Script

Standard Italic

PC437 (US / Standard Europe) PC850 (Multilingual) PC860 (Portuguese) PC861 (Icelandic) PC863 (Canadian-French) PC865 (Nordic) BRASCII Abicomp Roman 8 ISO Latin 1

NLSP Italic

PC437 (US / Standard Europe) PC850 (Multilingual) PC437 Greek PC852 (East Europe) PC853 (Turkish) PC855 (Cyrillic) PC857 (Turkish) PC866 (Russian) PC869 (Greek) MAZOWIA (Poland) Code MJK (CSFR) ISO 8859-7 (Latin/Greek) ISO Latin 1T (Turkish) Bulgaria (Bulgaria) PC774 Estonia ISO 8859-2 (ISO Latin 2) PC866 LAT

Supported Supported Supported

Supported Supported Not

EPSON - ; Roman Sans Serif

EPSON - ; Roman T Sans Serif H

Supported

Rev. A

1.2.2 Paper Specification

This section describes the types of paper that can be used in this printer.

1.2.2.1 Cut Sheet

[Size]

:A4 [Width 210mm (8.3”) x Length 297mm (11.7”)] :Letter [Width 216mm (8.5”) x Length 279mm (11.0”)] :B5 [Width 182mm (7.2”) x Length 257mm (10.1”)] :Legal [Width 216mm (8.5”) x Length 356mm (14.0”)] :Half Letter [Width 139.7mm (5.5”) x Length 215.9mm (8.5”)] :Exclusive [Width 190.5mm (7.5”) x Length 254mm (10”)]

Chapter 1 Product Description

[Thickness] [Weight] [Quality]

:0.08mm (0.003”) - 0.11mm (0.004”) :64g/m :Exclusive paper, Bond paper, PPC

(17Ib.) - 90g/m2 (24Ib.)

1.2.2.2 Transparency Film / Glossy Paper

[Size]

[Thickness]

Note) Transparency printing is only available at normal temperature.

:A4 [Width 210mm (8.3”) x Length 297mm (11.7”)] :Letter [Width 216mm (8.5”) x Length 279mm (11.0”)] :A6 [Width 105mm (4.1”) x Length 148mm (5.8”)]

:0.13mm (0.005”) - 0.15mm (0.006”) :0.17mm (0.007”) - 0.18mm (0.007”) for glossy paper

1.2.2.3 Envelope

[Size]

[Thickness] [Weight] [Quality]

Note) 1. Envelop printing is only available at normal temperature.

2. Keep the longer side of the envelope horizontally at setting.

: No.10 [Width 241mm (9 1/2”) x Length 104.8mm (4 1/8”)] : DL [Width 220mm (8.7”) x Length 110mm (4.3”)] : C6 [Width 162mm (6.4”) x Length 114mm (4.5”)]

: 0.16mm (0.006”) - 0.43mm (0.017”) : 45g/m : Bond paper, Plain paper, Air mail

(12Ib.) - 75g/m2 (20Ib.)

1.2.2.4 Index Card

[Size]

[Thickness] [Weight]

Note) 1. No curled, wrinkled, scuffing or torn paper be used.

2. Set the lever to the proper position according to the paper type you print. (Refer to section

1.2.3 for details)

3. Printing should be performed at room temperature in spite of the paper types.

:A6 Index card [Width 105mm (4.1”) x Length 148mm (5.8”)] :5x8” Index card [Width 127mm (5.0”) x Length 203mm (8.0”)] :10x8” Index card [Width 127mm (5.0”) x Length 203mm (8.0”)]

:Less than 0.23mm(0.0091”) :188g/m

Rev. A

EPSON Stylus Color 600

1.2.3 Adjust Lever Settings (PG adjust lever)

The adjust lever located on the right side (blue knob) under the printer cover needs to be set to the proper position according to the paper you print (Refer to the table below). Also, if there is any dirt caused by friction on the wavy or wrinkled paper, this can be prevented by changing the lever position to rear position (marked with “+”) in spite of paper types.

Table 1-5. Adjust Lever Settings

Paper Lever position PG adjustment value

Normal paper, Coated paper Transparency film Label Envelopes Rear 0.9 mm (2.0mm between head and platen)

Front (Mark "0")

Front 0 mm (1.1mm between head and platen)

Rear (Mark "

Level adjustment lever

CR Guide Shaft

Bush

Figure 1-2. Adjust Lever Settings

Rev. A

Chapter 1 Product Description

1.2.4 Printable Area

1.2.4.1 Cut Sheet

Following tables show printable areas at Character mode and Raster Graphics mode.

Table 1-6. Character Table

Paper size PW

(Paper width)

(typ.)

(Paper

Length)

(typ.)

(Left margin)

(min.)

(Right

margin)

(min.)

(Top margin)

(min.)

(Bottom

margin)

(min.)

A4 210mm(8.3”) 297mm(11.7”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) Letter 216mm(8.5”) 279mm(11.0”) 3mm(0.12”) 9mm(0.35”) 3mm(0.12”) 14mm(0.54”) B5 182mm(7.2”) 257mm(10.1”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) Legal 216mm(8.5”) 356mm(14.0”) 3mm(0.12”) 9mm(0.35”) 3mm(0.12”) 14mm(0.54”) Statement 139.7mm(5.5”) 215.9mm(8.5”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) Executive 190.5mm(7.5”) 254mm(10”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)

Table 1-7. Raster Graphics Mode

Paper size PW

(Paper width)

(typ.)

(Paper

Length)

(typ.)

Left margin)

(min.)

(Right

margin)

(min.)

(Top margin)

(min.)

(Bottom

margin)

(min.)

A4 210mm(8.3”) 297mm(11.7”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) Letter 216mm(8.5”) 279mm(11.0”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) B5 182mm(7.2”) 257mm(10.1”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) Legal 216mm(8.5”) 356mm(14.0”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) Statement 139.7mm(5.5”) 215.9mm(8.5”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”) Executive 190.5mm(7.5”) 254mm(10”) 3mm(0.12”) 3mm(0.12”) 3mm(0.12”) 14mm(0.54”)

LM RM

Printable Area

Figure 1-3. Printing Area for Cut Sheet

Rev. A

EPSON Stylus Color 600

1.2.4.2 Envelope

The table and figure below show the printable area for envelopes.

Table 1-8. Envelope

Paper Size LM

(Left Margin)

(min.)

#10 3mm (0.12”) 28mm (1.10”) 3mm (0.12”) 14mm (0.55”) DL 3mm (0.12”) 7mm (0.28”) 3mm (0.12”) 14mm (0.55”) C6 3mm (0.12”) 3mm (0.12”) 3mm (0.12”) 14mm (0.55”)

(Right Margin)

(min.)

Printable area

(Top Margin)

(min.)

(Bottom Margin)

(min.)

Figure 1-4. Printing Area for Envelope

Rev. A

Chapter 1 Product Description

1.2.5 Environmental Condition

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Temperature

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Operating :10 - 35°C (Refer to the figure below for condition)

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Non-operating :-20 - 60°C (with shipment container)

Note) Storage should be within one month at 40°C and 120 hours at 60°C.

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Humidity

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Operating :20% - 80% RH

(without condensation. Refer to the figure below for condition)

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Non-operating :5% - 85% RH

(without condensation and with shipment container)

Humidity (% RH)

80%

55%

Guaranteed range

20%

10°C (50°F)

27°C (80°F)

35°C (95°F)

°C (°F)

Figure 1-5. Temperature/Humidity of Range

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Resistance to shock

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Operating :1G, within 1 ms (X,Y,Z directions)

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Non-operating :2G, within 2 ms (X,Y,Z directions/with shipment container)

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Resistance to vibration

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Operating :0.15G, 10•`55Hz (X,Y,Z directions)

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Non-operating :0.50G, 10•`55Hz (X,Y,Z directions/with shipment container)

Note) 1. During non-operating, make sure that the head is capped.

2. During the transport, make sure that the head is capped and ink cartridge is installed to the printer.

3. If the head is not capped at the power-off state, turn the power on with the ink cartridge

installed and turn off the power after confirming that the head is correctly capped.

4. Ink will be frozen under -4°C environment, however it will be useable after placing it more than

3 hours at 25°C.

Rev. A

EPSON Stylus Color 600

1.2.6 Ink Cartridge Specifications

1.2.6.1 Black Ink Cartridge

Table 1-9. Black Ink Cartridge Specifications

Item Specifications

Type Black Ink Cartridge(Code: S020093) Color Black Print capacity 540 pages / A4 (ISO/IE10561 Letter Pattern at 360 dpi) Validity 2 years (sealed in package) / 6months(out of package) Environmental conditions

Dimension 19.8mm(W) x 52.7(D) x 38.5mm(H) Weight

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Temperature

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Storage :-20 - 40°C (within a month at 40°C)

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Packing storage :-30 - 40°C (within a month at 40°C)

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Transit :-30 - 60°C (within 120 hours at 60°C and within a month at 40••)

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Humidity

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5% - 85% (without condensation)

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Resistance to vibration

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Sealed in package :5 - 55Hz

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Acceleration :Less than 29.4m/s (3G)

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Direction :X, Y, Z direction

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Time :1 hour

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Drop

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Sealed in package:

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Dropping height :Less than 0.80m

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Direction :Drop the package facing the bottom, sides and one edge down.

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Out of package:

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Dropping height :Less than 1.50m

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Frequency :Once

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Total ink cartridge :54g

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Total ink :16.4•}0.5g (Amount in the ink cartridge)

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Consumable ink :More than 12.1g(Useable ink quantity until ink ends)

Note) 1. Ink cartridge can not re-fill, only ink cartridge is prepared for article of consumable.

2. Do not use the ink cartridge which is passed away the ink life.

3. Ink will be frozen under -4••environment, however it will be usual after placing it more than 3 hours at room temperature.

19.8

52.7

38.5

18.3

51.2

Figure 1-6. Ink Cartridge (Black)

1-1

Rev. A

1.2.6.2 Color Ink Cartridge

Table 1-10. Color Ink Cartridge Specification

Item Specifications

Type Color Ink Cartridge(Code: S020089) Color Magenta/Cyan/Yellow Print capacity 300 pages / A4 (360 dpi, 5% duty each color) Validity 2 years (sealed in package) / 6months(out of package) Environmental conditions

Dimension 42.9mm(W) x 52.7(D) x 38.5mm(H) Weight

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Temperature

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Storage :-20•• - 40•• (within a month at 40••)

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Packing storage :-30•• - 40•• (within a month at 40••)

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Transit :-30•• - 60•• (within 120 hours at 60••and within a month at 40••)

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Humidity

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5% - 85% (without condensation)

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Resistance to vibration

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Sealed in package :5 - 55Hz

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Acceleration :Less than 29.4m/s (3G)

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Direction :X, Y, Z direction

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Time :1 hour

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Drop

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Sealed in package :

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Dropping height :Less than 0.80m

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Direction :Drop the package facing the bottom, sides and one edge down.

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Out of package:

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Dropping height :Less than 1.50m

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Frequency :Once

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Total ink cartridge :68g

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Total ink :13.3•}0.5g (Amount in the ink cartridge)

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Consumable ink :More than 10.1g/each color (Useable ink quantity until ink ends)

Chapter 1 Product Description

Note)

1. Ink cartridge can not re-fill, only ink cartridge is prepared for article of consumable.

2. Do not use the ink cartridge which is passed away the ink life.

3. Ink will be frozen under -4••environment, however it will be usual after placing it more than 3 hours at room temperature.

43.2

51.2

42.9

41.4

52.7

38.5

Figure 1-7. Ink Cartridge (Color)

Rev. A

1-11

EPSON Stylus Color 600

1.2.7 Physical Specification

[Dimension]

[Weight]

309mm

:429mm(W) x 234mm(D) x 162mm(H) :429mm(W) x 695mm(D) x 309mm(H) with extended stacker and paper support.

:5.2Kg

695mm (Max)

Figure 1-8. Dimension

429mm

1-1

Rev. A

1.2.8 Electric Specification



[120V] Version

        

[Rated voltage] :AC120V [Input voltage range] :AC103.5 - 132V [Rated frequency range] :50 - 60Hz [Input frequency range] :49.5•`60.5Hz [Rated current] :0.4A(Max. 0.5A) [Power consumption] :Approx.15W(ISO/IEC 10561 Letter pattern)

[Insulation Resistance] :10M ohms min.(between AC line and chassis, DC500V) [Dielectric strength] :AC1000 V rms. 1 minute or AC1200Vrms. 1 second

(Energy Star compliant)

(between AC line and chassis)

Chapter 1 Product Description



[220 - 240V] Version

        

[Rated voltage] :AC220V - 240V [Input voltage range] :AC198 - 264V [Rated frequency range] :50 - 60Hz [Input frequency range] :49.5 - 60.5Hz [Rated current] :0.2 A(Max. 0.3A) [Power consumption] :Approx.15W(ISO/IEC 10561 Letter pattern)

[Insulation Resistance] :10M ohms min.(between AC line and chassis, DC500V) [Dielectric strength] :AC1500 V rms. 1 minute (between AC line and chassis)

1.2.9 Reliability

 

Total print volume :10,000 pages(A4, letter) Print head life :2000 million dots/nozzle

1.2.10 Safety Approvals

[120V version]



Safety standard :UL1950 with D3 EMC :FCC part 15 subpart B class B

(Energy Star compliant)

:CSA22.2 No.950 with D3 :CSA C108.8 class B

[220 - 240V]

 

Safety standard :EN 60950(VDE and NEMKO) EMC :EN55022(CISPR Pub.22) class B

1.2.11 Acoustic Noise



Noise Level :Approx.45 dB(A) (According to ISO 7779)

1.2.12 CE Marking

[220 - 240V version]

 

Low voltage Directive 73/23/EEC :EN60950 EMC Directive 89/336/EEC :EN55022 Class B

:AS/NZS 3548 class B

:EN61000-3-2 :EN61000-3-3 :EN50082-1 :IEC801-2 :IEC801-3 :IEC801-4

Rev. A

1-1

EPSON Stylus Color 600

1.2.13 Printer Language and Emulation



Printer Language :ESC/P2

:EPSON Remote



ESC/P control codes



General Operation:



Initialize Printer : ESC @



Unidirectional Printing : ESC U



CSF Mode Control : ESC EM



Paper feeding:



Form Feed : FF



Line Feed : LF



Line Spacing : ESC 0, ESC 2, ESC 3, ESC +



Carriage Return : CR



Page format:



Page Length :ESC (C, ESC C, ESC C0



Left / Right Margin :ESC Q, ESC1



Top / Bottom Margin :ESC (c, ESC N, ESC O



Printer position motion:



Horizontal Print Position :ESC $, ESC\



Vertical Print Position :ESC(V, ESC (v



Tab Horizontally :ESC D, HT



Tab Vertically :ESC B, VT



Advance paper :ESC J



Font Selection:



Typeface :ESC k, ESC x



Pitch and Point :ESC X



Pitch :ESC P, ESC M, ESC g, ESC p



Italic Font :ESC 4, ESC 5



Bold Font :ESC E, ESC F



Master Select :ESC!



Font enhancement:



Double-Width :ESC W, DC4, SO



Condensed :DC2, SI



Double-height :ESC w



Double-Strike :ESC G, ESC H



Super / Subscript :ESC T, ESC S



Underline :ESC-



Line / Score :ESC(-



Character Style :ESC q



Spacing:



Intercharacter Space :ESC Space



HMI :ESC c



Define Unit :ESC (U



Character handling:



Character Table :ESC t, ESC (t



International Character :ESC R



User-Defined Characters :ESC %, ESC &, ESC:



Upper Control Codes :ESC 6, ESC7



Print Data as Characters :ESC(^

1-1

Rev. A



Bit image:



Bit Image :ESC*



Graphics:



Graphics Mode :ESC (G



Raster Graphics :ESC.



Microweave control :ESC (i



Dot size control :ESC (e



Horizontal Position :ESC (\



Printing Speed :ESC(s



Printing mode:



Printing mode :ESC (K



Color:



Printing Color :ESC r, ESC (r



EEPROM control



EEPROM control

ESC 

Chapter 1 Product Description

Rev. A

1-1

EPSON Stylus Color 600

1.3 Interface

This printer provides both parallel and serial interface as standard.

1.3.1 Parallel Interface (Forward Channel)

[Transmission mode] [Synchronization] [Handshaking] [Signal level] [Adaptable connector]

BUSY signal is set high before setting either/ERROR low or PE high and held high until all these signals return to their inactive state.

BUSY signal is at high level in the following cases.



During data entry (see Data transmission timing)



When input data buffer is full



During -INIT signal is at low level or during hardware initialization



During printer error (See /ERROR signal)



When the parallel interface is not selected.

ERROR signal is at low level when the printer is in one of the following states.



Printer hardware error (fatal error)



Paper-out error



Paper-jam error



Ink-out error

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

PE signal is at high level during paper-out error. Table 1-11 shows the signal and connector pin assignments for parallel interface(forward channel*1). In

case of these signals, twist pair line is used and returning side is connected to signal GND (*1). Forward channel is the mode when the ordinary data such as print data is sent from the PC to the printer.

Table 1-11. Signal and Connector Pin Assignment for Parallel Interface

Pin No. Signal Name Return GND pin I/O Functional Description

1 /STROBE 19 In The strobe pulse. Read-in of data is performed at

the falling edge of this pulse.

2-9 DATA0-7 20-27 In The DATA0 through DATA7 signals represent

data bits 0 to 7, respectively. Each signal is at high level when data is logical 1 and low level when data is logical 0.

10 /ACKNLG 28 Out This signal is a negative pulse indicating that the

printer can again accept data.

11 BUSY 29 Out A high signal indicates that the printer cannot

receive data. 12 PE 28 Out A high signal indicates paper-out error. 13 SLCT 28 Out Always at high level when the printer is powered

on. 14 /AFXT 30 In Not used. 31 /INIT 30 In The falling edge of a negative pulse or a low

signal on this line causes the printer to initialize.

Minimum 50 us pulse is necessary. 32 /ERROR 29 Out A low signal indicates printer error condition. 36 /SLIN 30 In Not used. 18 Logic H - Out Pulled up to +5V via 3.9K ohm resistor. 35 +5V - Out Pulled up to +5V via 3.3K ohm resistor. 17 Chassis GND - - Chassis GND.

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

15,34 NC - - Not connected.

Note) “I/O” refers to the direction of signal flow from the printer’s point of view.

1-1

Rev. A

1.3.2 Parallel Interface (Reverse Channel)

[Transmission mode] [Synchronization] [Handshaking] [Data transmission timing] [Signal level]

[Adaptable connector] [Extensibility request]

Note) The printer sends following device ID string when it is requested.

00H 3CH Contents

MFG EPSON Production Maker CMD ESCPL2,BDC Command system

MDL Stylus[SP]Color[SP] 600 Model name

CLS PRINTER Class

:IEEE-1284 nibble mode :Refer to the IEEE-1284 specification :Refer to the IEEE-1284 specification :Refer to the IEEE-1284 specification :IEEE-1284 level 1 device :TTL compatible level :57-30360 (amphenol) or equivalent :The printer responds affirmatively when the extensibility request values are 00H or 04H, that mean; 00H :Request Nibble Mode Reverse Channel Transfer. 04H :Request device ID; Return Data using Nibble Mode Rev Channel

Transfer.

Table 1-12. Device ID Description

Chapter 1 Product Description

 

The table below shows pin assignment for reverse channel(*3). In these case of signals, twist pair line is used and returning side is connected to Signal GND. (*3):Reverse channel is the mode that any data is transferred from the printer to the PC.

No.

1 HostClk 19 In Host clock signal.

2-9 Data0-7 20-27 In The DATA0 through DATA7 signals represent data bits 0

10 PrtClk 28 Out Printer clock signal. 11 PtrBusy, Data Bit-3,7 29 Out Printer busy signal and reverse channel transfer data bit

12 AckDataReq, DataBit-2,6 28 Out Acknowledge data request signal and reverse channel 13 Xflag, DataBit-1,5 28 Out X-flag signal and reverse channel transfer data bit 1 or 5.

14 HostBusy 30 In Host busy signal. 31 /INIT 30 In Not used. 32 /DataAvail, DataBit-0,4 29 Out Data available signal and reverse channel transfer data

36 1284-Active 30 In 1284 active signal. 18 Logic-H - Out Pulled up to +5V via 3.9K ohm resister. 35 +5V - Out Pulled up to +5V via 3.3K ohm resister.

17 Chassis GND - - Chassis GND. 16,33 19-30

15, 34 NC - - Not connected.

[00H] denotes a hexadecimal value of zero. MDL value depends on the EEPROM setting. MDL value depends on the EEPROM setting. Model name can be changed by

changing a certain address in the EEPROM.

Table 1-13. Pin Assignment for Reverse Channel

Signal Name Return

GND pin

GND - - Signal GND.

I/O Functional description

to7, respectively. Each signal is at high level when data is logical 1 and low level when data is logical 0. These signals are used to transfer the 1284 extensibility request values to the printer.

3 or 7. transfer data bit 2 or 6.

bit 0 or 4.

Note) “I/O” refers to the direction of signal flow from the printer’s point of view.

Rev. A

1-1

EPSON Stylus Color 600

Following lists “Notes” when using Parallel Interface.



“

Return GND pin” in the table means twist pair return and is used for all control signals except for Logic H,+5V, Chassis, GND and NC. In this twist pair return, returning side is connected to GND (16,33, 19-30 pin) for twist pair return. Also, these cables are shielded wires and it is effective to connect to each chassis GND in the PC and printer for electrostatic noise.



Conditions for Interface are based on TTL level. Rise and fall time should be within 0.2µs. Refer to the figure 1-9 for transmission timing of each signals. Do not perform data transmission ignoring /ACK or BUSY signal. (Perform the data transmission

after confirming that /ACK and BUSY signals are Low.)



It is possible to perform the printing test including interface circuit without using equipment from outside when 8-bit data signal(20-27 pin) is set to appropriate word code and connect them forcefully to /ACK and /STRB.

[Data Transmission Timing for Forward Channel]

Data

/STROBE

BUSY

Byte Data n Byte Data n+1

Thold

Tsetup

Tstrb

Tnext

/ACKNLG

Tready Tbusy

Treply

Tack Tnbusy

Figure 1-9. Parallel Interface Timing Chart(Forward Channel)

Table 1-14. Timing Parameters and Value

Parameter Minimum Maximum

tsetup 500ns ---

thold 500ns ---

tstb 500ns ---

tready 0 ---

tbusy --- 500ns

tt-out* --- 120ns

tt-in** --- 200ns treply 0 ---

tack 500ns 10us

tnbusy 0 ---

tnext 0 ---

Note) *: Rise and fall time of every output signals.

**: Rise and fall time of every input signals.

Table 1-15. Typical Time of Tack

Parallel I/F mode Typical time of tack

High speed 2us

Normal speed 4us

1-1

Rev. A

[Signal level: TTL compatible (IEEE-1284 level 1 device)]

Table 1-16. Signal Level

Parameter Minimum Maximum Condition

VOH* --- 5.5V

VOL* -0.5V ---

IOH* --- 0.32mA VOH = 2.4V

IOL* --- 12mA VOL = 0.4V

CO --- 50pF

VIH --- 2.0V

VIL 0.8V --IIH --- 0.32mA VIH = 2.0V

IIL --- 12mA VIL = 0.8V

CI --- 50pF

Note) *: A low logic level on the Logic H signal is 2.0V or less when the printer is

powered off and this signal is equal or exceeding 3.0V when the printer is powered on. The receiver shall provide an impedance equivalent to

7.5K ohm to ground.

[Data Transmission Timing for Reverse Channel]

The figure below shows timing chart of Parallel Interface Reverse channel.

Chapter 1 Product Description

Virtual Busy Status

Figure 1-10. Parallel Interface Timing Chart(Reverse Channel)

1.3.2.1 Prevention Hosts from Data Transfer Time-out

Generally, hosts abandon data transfer to peripherals when a peripheral is in the busy state for dozens of seconds continuously. To prevent hosts this kind of time-out, the printer receives data very slowly, several bytes per minute, even if the printer is in busy state. This showdown is started when the rest of the input buffer becomes several hundreds of bytes. Finally, the printer is in the busy state continuously when the input buffer is full.

Rev. A

1-1

EPSON Stylus Color 600

1.3.3 Serial Interface

[Standard] :Based on RS-423 [Synchronization] :Synchronous [Bit Rate] :Approx. 900Kbps [Handshaking] :X-ON/X-OFF, DTR Protocol [Word Format] :Data Bit = 8 bits

:Parity Bit = None :Start Bit = 1 bit

:Stop Bit = 1 bit [Connector] :8-pin mini-circular connector [Recommended Cable] :Apple System Peripheral-8 Cable

(Part #: M0197)

Table 1-17. Pin Assignment

Pin No. Signal Name I/O Description

1 SCLK O Synchronous clock signal 2 CTS I Clear To Send 3 TXD- O Transmit Data (-) 4 SG I (Signal Ground) 5 RXD- I Receive Data (-) 6 TXD+ O Balanced Transmit Data (+) 7 DTR O Data Terminal Ready 8 RXD+ I Balanced Receive Data (+)

Table 1-18. X-ON/X-OFF and DTR Status

State Buffer Space X-ON/X-OFF DTR

Busy Less than 3072 bytes Send X-OFF code OFF

Ready More than 5120 bytes Send X-ON code ON

1-2

Rev. A

Chapter 1 Product Description

1.4 Control Panel

Since EPSON Stylus Color 600 does not require many buttons since printer driver can start various settings and motions. Therefore, there are only 2 non-lock type push switches, 1 lock type push switch and 4 LEDs. Following figure shows control panel of EPSON Stylus Color 600.

Paper out LED

Ink out(Black)LED

Ink out(CMY)LED

1.4.1 Indicators

Cleaning Switch (Ink maintenance)

Figure 1-11. Control Panel

Load/Eject switch

Power

Power switch

LED

Power



Lights when the operate switch is “ON”, and AC power is supplied.

Paper out



Lights during the paper-out condition, and blinks during the paper-jam condition.

Ink Out (Black)



Lights during no Black ink condition, and blinks during the Black ink low condition.

Ink Out (Color)



Lights during no Color ink condition, and blinks during the Color ink low condition.

Rev. A

1-21

EPSON Stylus Color 600

1.4.2 Panel Functions

Table 1-19. Panel Function

Switch Function

Load/Eject

(Pushing within 0.5 seconds*)

Load/Eject

(Pushing for 2 seconds*)

Cleaning

(Pushing for 2 seconds*)

Cleaning

(Pushing within 2 seconds*)

Note) *: 3 seconds is required at the User’s manual.

**: This function is not available in printing status. ***: The time to complete the sequence may vary depending on the printer’s status.

Panel Functions with Power ON

Switch Function

Load/Eject

Cleaning

Load/Eject

Cleaning

Note) **: status printings prints firmware version, ink counter, selected code page and nozzle check

patterns.



Loads or Eject the paper.



When the carriage is on the Ink Cartridge change position, return the carriage from Ink Cartridge change position.



Starts the Ink Cartridge change sequence.** Moves the carriage to cartridge change position.



Starts the Head Cleaning sequence. ***



In the condition of “Ink Low” or “Ink Out” or “No Ink Cartridge” starts the Ink Cartridge change sequence.**



When carriage is on the Ink Cartridge change position, return carriage from Ink Cartridge change position.

Table 1-20. Panel Function with Power ON



Starts status printings.**



Enter the Default Setting mode



Enters the particular settings mode. (Factory use only.) To enter the particular settings mode, it is necessary to push followings switch while Paper Out LED is blinking.(It blinks about 5 seconds)

Particular setting mode

Table 1-21. Particular Setting Mode

Switch Function

Load/Eject



Note) ***: Refer to EEPROM map.

Initialize EEPROM *** and reset Timer IC.

1-2

Rev. A

Chapter 1 Product Description

By performing a particular setting mode, Maintenance error can be cleared and certain addresses of EEPROM can also be reset.

Maintenance Error Clear



[Step 1] Turn the printer on while holding down Load/Eject and Cleaning switches at the same time.

(By operating this performance, the Paper Out LED starts blinking.)

[Step 2] Push the Load/Eject switch while the Paper Out LED is blinking (5 seconds). Following shows the lists that will be cleared by this performance.



Clear the value of Ink Counter



Clear Time IC



Initialization of I/F selection (returns to AUTO)

WARNING

EPSON Stylus Color 600 does not have “EEPROM All Clear” function like other printers. If the



printer does not function well and falls into fatal error condition, replace the main board to see if the problem is rectified. (Refer to Chapter 4 “Adjustment” when you replace the main board since some adjustments will be necessary.)



Be sure to replace a waste ink pad in the printer enclosure with a new one after you perform Maintenance error clear operation.

1.4.3 Printer Condi ti on and Panel Status

The table below shows printer condition and panel status. Since this table shows various error status and also present printer status, you can judge appropriate repair ways from this table.

Table 1-22. Printer Condition and Panel Status

Printer status Indicators Priority

Power Ink Out

(Black)

Power on condition On --- --- --- 9 Ink sequence Blink --- --- --- 6 Ink Cartridge change mode Blink --- --- --- 5 Data processing Blink --- --- --- 8 Paper Out --- --- --- On 4 Paper jam condition --- Off Off Blink 3 No Ink cartridge or Ink end(black) --- On --- --- 7 Ink level low(black) --- Blink --- --- 7 No Ink cartridge or Ink end(color) --- --- On --- 7 Ink level low(color) --- --- Blink --- 7 Enter EEPROM and Timer IC reset --- On

(1 second

only) Maintenance request Blink Blink Blink Blink 2 Fatal error Blink On On Blink 1

Ink Out (Color)

(1 second

only)

Paper Out

(1 second

only)

Note) “—“ means no changes.

Rev. A

1-2

EPSON Stylus Color 600

1.5 Error Status

When following status occur, the printer goes to the error status and stops taking data, setting the /ERROR signal in the interface as “Low”, and Busy signal as “High”. At this time, the printer goes to non printable status. Refer to section 1.4.2 for more details of LED Panel indicators during the various error status.

1.5.1 Ink Out

When the printer runs out the most part of the ink of any one color, it warns ink-low and keeps printing. When the printer runs out the whole ink of any one color, it stops printing and indicates ink-out error. User is requested to install a new ink-cartridge in this state. An ink-cartridge once taken out should never be used again. Re-installation of the cartridge not filled fully upsets the ink level detection and may cause a serious problem in the print head as a result.

WARNING

Never use the ink cartridge once taken out from the printer.



Following explains the reason of the above warning.



After the cartridge is once taken out, airs come in from the ink supply hole located at the top of cartridge and becomes bubbles, and they are absorbed into the head during printing performance. Therefore, the head will be unable to discharge the ink properly. Also, inevitable entering of bubbles when installing a new ink cartridge can be absorbed to ink itself since the ink itself in the cartridge is deaerated during the production process. However, this absorbing ability can last only about one hour after the cartridge is installed.



Even after the bubble absorbing ability described above stops, there is no worry about entering bubbles as long as the ink cartridge is being installed to the printer. However, if the ink cartridge which does not have absorbing ability any more is once removed from the printer, new coming bubbles into the cartridge will never disappear naturally. These bubbles may cause not only printing malfunction but also thickening ink. This thickened ink goes into the head and clogs ink path in the head or nozzle and may cause serious head damage.



As standard specification for EPSON Stylus Color 600, ink consumption counter is reset when the ink cartridge is removed. If an ink cartridge is removed and re-installed unnecessarily the value on the ink consumption monitor which the user can check will be wrong and printer may keep printing even though the ink cartridge is installed empty. This may cause head damage.

1.5.2 Paper Out

When printer fails to load a sheet after power on operation including timer-cleaning is done and Load/Eject button on the FF command or operation panel is pressed, it goes paper out error.

1.5.3 Paper Jam

When printer fails to eject a sheet even after feeding motion is completed or Load/Eject button on the FF command or operation panel is pressed, it goes paper jam error.

1-2

Rev. A

1.5.4 No Ink-Cartridge Error

Following reasons can be the causes when printer goes this error mode.

Chapter 1 Product Description



according to the ink cartridge exchange operation.)



When the printer is turned on for the first time. (This is a normal error state and it returns to the normal state after installing an ink cartridge

Ink cartridge exchange operation is done correctly. After the position of carriage is moved by exchange operation, if the cleaning switch is pushed without installing ink cartridge or if the carriage returns to the home-position automatically without doing any operation, it is considered as handling mistake. However, it returns to normal state by performing ink exchange operation again and installing cartridge correctly.

If “No ink-cartridge error” appears even after the ink cartridge is installed, the printer must be something wrong and around the sensor area in the carriage need to be repaired.

If sometimes printer can print normally but also sometimes “No ink-cartridge error” appears, the

printer must be something wrong. (Same reason as above)

1.5.5 Maintenance Request

When the total quantity of ink wasted through the cleanings and flushing reaches to the limit, printer indicates this error and stops. The absorber in the printer enclosure is needed to be replaced with new one by a service person. The ink quantity that is absorbed by the absorber (waste ink pad) is monitored by the software counter as “total ink counter”. This counter is added by point system and absorber’s maximum ability is set at the following reference value.

29500 X 0.012 ml = Approximately 301ml



However, considering dispersion of ink absorbing quantity and the number of using nozzles, ink total value is calculated by the following formula.

1-point = 0.0102 ml (the value which is multiplied evaporating rate and 1-dot ink weight 0.02

ml)

29500 = Maximum point number (Maintenance error threshold)

301 X 1.1/63% = 526ml (but up to 532ml can be retained)

WARNING

When you perform self- test after completing repairs, it is possible to check the present value of total ink counter and ink discharge conditions from all nozzles by performing status printing in the built-in function. Therefore, make sure that the printer has enough value of total ink counter (if the number is close to 29500 or not). If there is not enough value, the service man is required to judge if it is necessary to clear EEPROM after replacing the absorber (waste ink pad) or not. Refer to section 1.3.1 if you need to perform EEPROM Clear.

1.5.6 Fatal Errors

When printer detects fatal errors such as carriage control error or CG access error, it goes to this error mode. Refer to followings for each error.



Carriage control Error: Parallel adjustment malfunction, Home-position malfunction, Timing belt

tension malfunction, shortage of lubricant on the carriage guide shaft, etc.



CG Access Error: Short circuit, etc.

Rev. A

1-2

EPSON Stylus Color 600

1.6 Printer Initialization

EPSON Stylus Color 600 has three kinds of initialization methods. Following explains each initialization.



Power-on initialization This printer is initialized when turning the printer power on, or printer recognized the cold-reset command (remote RS command). When printer is initialized, following action is performed.



Initializes printer mechanism.



Clears input data buffer.



Clears print buffer.



Sets default values.

Operator initialization This printer is initialized when turning the printer power on again within 10 seconds from last power off, or printer recognize the /INIT signal (negative pulse) of parallel interface. When the printer is initialized, following action is performed.



Cap the printer head.



Eject a paper.



Clears input data buffer.



Clears print buffer.



Sets default values.

Software initialization The ESC@ command also initialize the printer. When printer is initialized, following action is performed.



Clears print buffer.

Sets default values.

1.6.1 Initialization Settings

EPSON Stylus Color 600 initializes following settings when the initialization is performed. Also, if the user changes the settings in the Panel setting, Default setting or Remote command setting, values or settings which are possible to be stored are initialized as initialization settings.



Page position :Page heading location as present paper location



Line spacing :1/6 inch



Right margin position :80 lines



Left margin position :first line



Character pitch :10CPI



Printing mode :Text mode (Not Raster graphics mode)

1-2

Rev. A

Chapter 1 Product Description

1.7 Main Components

EPSON Stylus Color 600 has following major units. Also, it is one of the major characteristics that the bottom of the Printer mechanism plays the role as lower case at the same time.

    

Upper case

Printer Mechanism

C200 MAIN Board (Main control circuit board)

C206 PSB/PSE Board (Power supply circuit board)

C206 PNL Board (Control panel circuit board)

1.7.1 Printer Mechanism

Unlike EPSON’s previous ink jet printer mechanisms, one of the major characteristics of EPSON Stylus Color 600 is that the printer has no Engage/Disengage mechanism in order to change over pump mechanism and paper feeding mechanism. Instead, however, this change-over control is done by the distinction between turning direction of PF motor and position of present carriage unit. Also, another major characteristic is that print head is changed to be one unit combined with black and CMY. Nozzle configuration for black is 64 nozzles (the nozzle pitch of each column is 90dpi and between two consecutive nozzles in number (e.g. #1 and #2) is 180dpi). On the other hand, CMY nozzle has 32 nozzles (90dpi) for each color. Following figure shows exterior of mechanism.

CR Motor

Carriage

PF Motor

Control Panel

Hopper (Exit paper tray)

*ASF is not shown in the above figure.

Figure 1-12. Exterior view of the Printer Mechanism

Rev. A

1-2

EPSON Stylus Color 600

1.7.2 C200 MAIN Board

The C200 MAIN board controls whole mechanism operations and a data processing operation. Most of the functions of the circuit are integrated into single ASIC; E05B43YA (IC2) and this makes the board design very simple and reliable.

IC7 Printhead Driver

IC15 PF Motor Driver

IC14 CR Motor Driver

IC2 ASIC (E05B43YA)

IC1 CPU (TMP95C0618F)

IC5 DRAM(4MBit)

IC6 Mask ROM (CG)

Parallel I/F(CN1)

Serial I/F (CN2)

IC3 PROM(4MBit)

Lithium Battery

Figure 1-13. Exterior view of C200 Main Board

1-2

Rev. A

Chapter 1 Product Description

1.7.3 C206 PSB/PSE Board

The C206 PSB/PSE board is a switching regulator type power supply unit and constantly supplies stable logic and power voltages to the printer mechanism and the main control board. Also, since this C206 PSB/PSE board has the power switch in the secondly side of the circuit, it is possible to keep supplying electricity to the C200 MAIN control board for 30 seconds even after the power switch is turned off. Using this time difference, even when mis-operation is done by the user such as turning off the power during the middle of printing work, it prevents unexpected trouble with the printhead from occurring, by transferring the printhead to the cap position before complete shut down. The C206 PSB Board is for AC100 - 120V input voltage and the C206 PSE Board is for AC220 - 240V input voltage.

FUSE (F1)

AC input (CN1)

Q1 FET (Switching)

Power line to C200 MAIN/Mechanism (CN2)

PC1 Photo-coupler

Figure 1-14. Exterior view of C206 PSB Power Supply Board

1.7.4 C206 PNL Board

The C206 PNL board is located in the panel case where is in the right bottom of the front of printer and consists of 3 switches, 4 LEDs.

Figure 1-15. Exterior view of C206 PNL Board

Rev. A

1-2

Chapter 2

Operating Principles

2.1 OVERVIEW...............................................................................................................1

2.1.1 Printer Mechanism .................................................................................................................... 1

2.1.1.1 Printing Mechanism......................................................................................................2

2.1.1.2 Carriage Mechanism .................................................................................................... 7

2.1.1.3 Paper Feed Mechanism and Pump Mechanism.........................................................11

2.1.1.4 Ink System.................................................................................................................. 14

2.2 Electrical Circuit Operating Principles................................................................18

2.2.1 C206 PSB/PSE Board.............................................................................................................. 19

2.2.2 C200 MAIN Board..................................................................................................................... 21

2.2.2.1 Reset Circuits............................................................................................................. 23

2.2.2.2 Sensor Circuits........................................................................................................... 24

2.2.2.3 EEPROM Control Circuits .......................................................................................... 25

2.2.2.4 Timer Circuit............................................................................................................... 26

2.2.2.5 DRAM Control ............................................................................................................26

2.2.2.6 Print Head Control Circuit........................................................................................... 27

2.2.2.7 PF(Pump) Motor Drive Circuit .................................................................................... 30

2.2.2.8 CR Motor Drive Circuit ............................................................................................... 31

2.1.1.1.1 Printing Process................................................................................................ 3

2.1.1.1.2 Printing Method................................................................................................. 4

2.1.1.2.1 Paper Gap Adjust Mechanism ........................................................................ 10

2.1.1.4.1 Pump Mechanism ........................................................................................... 15

2.1.1.4.2 Cap Mechanism.............................................................................................. 17

Chapter2 Operating Principles

2.1 OVERVIEW

This section describes Printer Mechanism, electric circuit board (C206 PSB, C200 Main, C206PNL board) of Stylus Color 600.

2.1.1 Printer Mechanism

Unlike previous EPSON Ink Jet printers, printer mechanism of Stylus Color 600 does not have exclusive mechanism to change over paper feeding and Pumping operation. In stead, this control is done by the turning direction of paper feed/pump motor and position of carriage at that time. Also, unlike previous print heads, print head of this printer became one unit combined with black and CMY head. Black head has 64 nozzles, 180 dpi(vertical direction) and CMY head has 32 nozzles, 90 dpi (vertical direction). Also, since these print head is driven by frequency 14.4KHz, this printer can print double resolution(1440 dpi/100-dpi) than Stylus Color. Following figure2-1 shows outline of printer mechanism.

Since the head drive frequency of Stylus Color was 7.2KHz, it could be only 720-dpi printing when it driven by 100 cps carriage speed. It performs two-pass carriage operation when Stylus Color 600 performs the 1440 dpi printing towards the horizontal line.

Carriage Unit (Prinr Head Unit)

Platen Drive Mechanism

Paper Pickup Mechanism

Pump Drive Mechanism

Timing Belt

Paper Pick Up Trigger Lever

Pumping Position

Paper Feed Motor

Rev. A

Carriage Motor

Figure 2-1. Stylus Color 600 Printer Mechanism Block Diagram

2-1

EPSON Stylus Color 600

As major printer mechanisms in the figure 2-1, there are four major mechanisms as they are listed below.

1) Printing mechanism 2) Carriage unit 3) Paper pick up mechanism4) Pump drive mechanism

2.1.1.1 Printing Mechanism

Basic principles of the print head which plays major role of printing mechanism is the same as previous models; on demand type MACH head method, but there is some difference in the resolution. (Refer to figure1-1) Also, unlike Stylus Color II, Stylus 820 and Stylus Color 200 automatic correction type, in order to fix the dispersion of mufti layer piezo electric element which is used for driving each nozzles, it is necessary to input the VH value written on the side of print head by using exclusive program when you replace print head, control board, or the printer mechanism.(However, there are no resistor array for decide the VH voltage on the main control board.) Following explains print head.



PZT





Cavity Set





Nozzle Plate





Filter



PZT is an abbreviation of Piezo Electric Element. Print signal from C200 board is sent through the driver board on the print head unit and to the PZT . Then, the PZT pushes the top cavity which has ink stored, and make the ink discharge from each nozzle located on the nozzle plate.

Ink which is absorbed from ink cartridge go through the filter and will be stored temporarily in this tank, which is called “cavity” until PZT is driven.

The board with nozzle holes on the printer head surface is called Nozzle Plate. When the ink cartridge is installed, if any dirt or dust around the cartridge needles are

absorbed into the head inside, there is a great possibility of causing nozzle clog and disturbance of ink flow and finally causing alignment failure and dot-missing. In order to prevent this, filter is set at cartridge needle below and ink is once filtered here.

PZT

Nozzle Plate

Printhead driver board

Ink Cartridge Sensor Actuator

Cartridge needle

(Ink Cartridge)

Filter

Ink Supply Tube

Cavity set

Figure 2-2. Print Head Sectional Drawing

Rev. A

Chapter2 Operating Principles

2.1.1.1.1 Printing Process

Following figures indicate the sectional drawing of normal state and ejecting state of print head.

(1) Normal State:

When the print signal is not output, PTZ also does not move in the waiting state(normal state).

PZT

Cavity

Ink Course

Nozzle

Figure 2-3. Print Head Normal State

(2) Ejecting State:

When the print signal is output from the C200 main board, IC(IR2C72C and IR2C73C:Nozzle

Selector) located on the print head unit latches the data once by 1-byte unit. Appropriate PZT latched by nozzle selector is pushed in to the cavity by applying common voltage from the C200 main board. By this operation, ink that is stored in the cavity pops out from nozzles.

Nozzle Plate

Rev. A

Figure 2-4. Print Head Ejecting State

EPSON Stylus Color 600

2.1.1.1.2 Printing Method

This section explains printing method of actual printing such as printing text at various resolution select/printing mode and graphics printing. In order to prevent white or color banding which are peculiar problem of ink-jet, new Micro-Weave functions are added to the previous Micro-Weave function. The number of nozzles and printing mode according to the selected resolution are used separately by a user. The table below shows relation between selected resolution and printing mode.

1) Full Overlap Micro-Weave

2) Part Line Overlap Micro-Weave

3) Micro-Weave: (same as previous control)

Table 2-1. Resolution and Printing mode

Vertical

direction

Note1: Note2: Note3:

Note4:

[dpi]

360 FOL M/W 15/360 #16•`#30 --- #1•`#15 #31•`#32 720 FOL M/W 15/720 #16•`#30 --- #1•`#15 #31•`#32

M/W means Micro-Weave.

FOL means Full Overlap Micro-Weave. POL means Part line Overlap Micro- Weave Forward Overlap-Nozzle and backward Overlap -Nozzle are described in the [1.Full Overlap

Mirco-Weave] and [2.Part line Overlap Micro-Weave] below.

Printing

mode

M/W 31/360 --- #1•`#31 --- #32

POL M/W 29/720 #30•`#32 #4•`#29 #1•`#3 ---

Paper feed

pitch

[inch]

Forward Overlap-

Nozzle

Non

Overlap-

Nozzle

Backward

Overlap-

Nozzle

Not used

Nozzle

Following explains operation outlines of new Micro-Weave functions listed above.

[1. Full Overlap Micro-Weave]

In order to print one line at horizontal direction, this printing method is designed to complete a printing pattern by two-pass carriage operation with two different types of dot. When this two different types of dot pass one same line twice, it does not print the same dot twice.



Note1)

The nozzles whose configuration completely match to the black and CMY nozzle are used. (Usually Micro-Weave type) Therefore, all nozzles in case of CMY nozzle and #1•`#63 nozzles in the B2 line in case of black head are its objects. (B1 line is not used at Micro-Weave. Refer to figure1-1 for detail of nozzle configuration.) Out of these 4 color nozzle objects, the number of all nozzles which are going to be used are divided equally into 2 groups. Paper feeding will be done as many as each number of nozzles which are divided into two groups and the same number of dots.(for example, if there are two 10-nozzle groups during 360-dpi printing at longitudinal direction, paper feeding of 10/360-inch becomes available.) At this time, two groups perform Micro-Weave individually and particular lines are passed by two different nozzles.

These nozzles which are divided into two groups must be set and divided in order to

be a pair of odd and even number.

Rev. A

Note2)

Chapter2 Operating Principles

Two groups which are divided according to each elements will be divided either even dot or odd dot when particular lines(level direction line) are formed and eventually, these lines will be completed at selected resolution. Following is a conceptual figure when full overlap micro weave orms a particular line.

Nozzle No.#9

Condition: 360-dpi printing Nozzle: Total 10 nozzle/each color

Nozzle No.#4

Particular line(Completed line)

Figure 2-5. Full Overlap Micro-Weave

Note 3) The way firmware decides which nozzle becomes even dot or odd dot is determined

as it is described below.



If the line which is about to be printed is even line:



First dot prints odd dot lines and 2nd dot prints even dot lines.



If the line which is about to be printed is odd line:



1st dot prints even dot lines and 2nd dot prints odd dot lines. Eventually, horizontal resolution

will be the same resolution as selected one.

[2.Part Line Overlap Micro-Weave]

This printing method is to perform Micro-Weave printing, overlapping a part of nozzles which are used for printing. As a result, a part of raster which is overlapped consists of different browse with different nozzles. The figure below shows 1-line Overlap at 5-dot sending as an example with explanation on the next page.

360-dpi

Pass1

#1 #2 #3 #4 #5 #6

Note1: The paper feed pitch is 5/360-dpi in this figure. Note2: Mark of and mean overlap nozzle.

Raster 1

Raster 10

Figure 2-6. Part line Overlap Micro-Weave

Rev. A

EPSON Stylus Color 600



1) Overlap Nozzle : Head drive frequency is driven half of the ordinal one like 2) below.

2) Nozzle other than Overlap nozzle : Head drive frequency is twice as much as overlap nozzle.

Usually, the firmware changes over automatically these full overlap Micro-Weave, Part line Overlap Micro-Weave, and ordinal Micro-weave according to the selection of resolution. Also, when these three printing modes are performed by the Stylus Color 600, the printer performs top and bottom margin process in order to control the overprinting volume as little as possible.

The difference between Full-Overlap Micro-Weave and Part line Overlap Micro-Weave are following;

Full-Overlap Micro-Weave:



Printing is performed, judging if nozzles are even or odd dot by 2 different dots with all different rasters.

Part line Overlap Micro-Weave:



After particular nozzles(only#1, and #6 in the figure2-7) are determined as overlap nozzles, even or odd dot will be determined like Full-overlap Micro-Weave does. (Forward Overlap Nozzle is determined as even and backward nozzle is odd.) Also, nozzles other than particular nozzles can print at even and odd dot just by one nozzle.

Rev. A

Chapter2 Operating Principles

2.1.1.2 Carriage Mechanism

Carriage mechanism is to drive the carriage with print head mounted from left to right or vice versa. The carriage drive motor in this printer is a 4-phase, 200-pole, stepping motor and is driven by 1-2phase, 2-2phase and W1-2phase drive method. This stepping motor allows the carriage to move freely to the particular positions which is necessary for various operation, such as paper feeding, ink absorbing, flashing, ink exchange and cleaning operations. The tables below shows carriage motor specifications and motor controls at each mode.

Table 2-2. Carriage Motor Specification

Item Description

Motor type 4-phase/200-pole Stepping motor Drive voltage Range 42VDC ±5% Internal coil resistance 7.8 ohms ±10%

(per phase under 25°C environment) Driving speed(frequency) range[cps (pps)] 5(60) - 340(4080) Control method Bi-pola Drive

Table 2-3. Motor Control at Each Mode

Mode Driving speed

[CSP]

High speed skip 340 4080 W1-2, 2-2,1-2phase drive* Printing(Normal) 200 2400 W1-2phase drive Printing(SLQ) 100 1200 W1-2phase drive Capping 80 960 W1-2phase drive Wiping 40 480 W1-2phase drive Cap(valve release) 20 240 W1-2phase drive Withdrawal of cap 5 60 W1-2phase drive

Drive frequency

[PPS]

Drive method

*Note 1):

• Acceleration 1 mode •¨ • Acceleration 2 mode •¨ • Deceleration 1 mode •¨ • Deceleration 2 mode

The reason why plural drive methods exist is that following some sequences described below exist in the each mode and stable carriage operation and printing are performed individually by different drive methods. This drive method is especially necessary for high speed skip.

C200 MAIN Board

Rotor

Connecter CN6(CN7)

Figure 2-7.CR(PF/Pump) Motor Internal Block Diagram

Rev. A

EPSON Stylus Color 600

The table below shows W1-2 phase drive sequence at each steps when the rotor of carriage motor makes one rotation. In the Stylus Color 600, in addition to a function that printing is performed with W1-2 drive phase, high speed skip mode which is a function to skip over the blank from the end of the printing data to the next data starting point with high seed can be also performed by 2-2 and 1-2 phase drive. W1-2 phase requires 4 times as much steps as 2-2 phase drive, calculating 2-2 phase as standard. By using this method, it becomes possible to supply constant stable torque to the motor. As a result, it also became difficult to be influenced by vibration from the printer mechanism during printing.

Table 2-4. Motor Drive Sequence(W1-2 phase drive)

Sequence

Number

Phase a 10a l1a Current

0010+2/3010+2/3 1001+1/3000+1 2X110000+1 3101-1/3000+1 4110-2/3010+2/3 5100-1X01+1/3 6100-11110 7100-1101-1/3 8110-2/3110-2/3

9101-1/3100-1 10X110100-1 11001+1/3100-1 12010+2/3110-2/3 13000+1101-1/3 14000+1X110 15000+1001+2/3

Phase A Phase B

Phase b 10b l1b Current

Duty

This W1-2 phase drive (or 2W1-2 phase drive) is called Micro-step and is attached with so called 2/3•EVref or 1/3•EVref factor, compared with drive current value (Vref100%) which is supplied at 22phase drive. This Micro-Step allows the rotor to have delicate rotation. In the 2-2 phase drive m ethod, it is usually required to take 4-step sequence in order to rotate the rotor once. However, in case of W1-2 phase, it is required to take 16-step sequence(in the table 2-4, sequence 0•`15) which is 4 times more than 2-2 phase method to do that. Also, in case of 2W1-2 phase drive which can be seen in the Stylus Color etc., it takes 2-step to rotate the rotor once. The table below shows relation of rotation direction of rotor and carriage proceeding direction.

Table 2-5. Relationship Between Rotor Direction and Carriage Operation

Carriage proceeding

direction

HP→80 column direction 80 column→HP direction

Rotation direction of

Rotor

Looking from rotor output side, clockwise direction Looking from rotor output side, counterclockwise direction

Drive method Proceeding order of

sequence

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

Sequence No.0→15 Sequence No.15→0

Rev. A

Chapter2 Operating Principles

The figure below shows carriage mechanism. The print head as a core of the printing mechanism is stored in the carriage unit. This print head keeps the tilt of print head in flexible and adjustable structure by moving the adjustment lever up and down by the tilt adjustment mechanism. (Refer to chapter 4 for more details) Also, parallelism adjustment lever is mounted on the left and right side of carriage guide shaft and it adjusts parallelism degree between platen and shaft when this shaft is installed to the printer mechanism. After this adjustment is completed and operate PG adjustment lever, it becomes possible to change the space between platen surface and print head surface into 2 phases; either 1.1mm to 1.8mm. It is possible to vary the space between platen surface and print head by rotating the axis of carriage guide shaft which itself is decentralized, with the operation of PG lever. This is the mechanism that user can adjust the appropriate PG value by himself according to the paper thickness or any other environmental conditions such as paper curl.

Carriage lock mechanism is to prevent the carriage from being left at uncap position for a long time because of vibration during the printer transport or mishandling by the users. If the carriage is left at uncap position and uncap state of the print head for long time, an ink on the print head surface gradually becomes viscosity. As a result, the nozzle will be unable to discharge an ink. To make matters worse, the holes(crater) of nozzle may be completely clogged by the viscosity ink and it may not be able to return to the normal condition just by cleaning operation. In order to prevent this, printer goes to carriage lock state at the following conditions.

After Power OFF operation:





If the power is turned off on the way of printing or any other performance, carriage lock will be performed in the end after completing initialize operation.



After power ON operation:



After power is turned on and automatic P-On Cleaning is performed, then carriage lock will be performed. P-On Cleaning is an automatic head cleaning that is performed when the power is turned on. The timer IC always calculates printer’s power OFF time by the power of lithium battery mounted on the C200 main board. P-on cleaning function automatically selects the cleaning level according to the time which the printer is not in used.



After Eject the paper:

After Load/Eject button is pressed and the paper is ejected, if the data is not input, the printer performs carriage lock and goes to standby state. However, if the paper is loaded to the printer inside by Load/Eject button, the printer does not perform the carriage lock operation.

Paper Feed Motor

Eject Roller

Paper guide(Front)

Carriage home position Sensor

PF Roller

Timing Belt

Carriage Unit

Figure 2-8. Carriage Mechanism(Top Viewing)

Front Side

Carriage Guide Shaft

Carriage Motor

Rear Side

Parallelism Adjust Lever

Fixing Bush

Rev. A

EPSON Stylus Color 600

2.1.1.2.1 Paper Gap Adjust Mechanism

This mechanism can be set by the users and can prevent various problems related to low image density or print with any dirt by changing the positions of PG lever according to the paper types.

Table 2-6. Paper Gap Adjust Lever Setting

Paper Lever position PG adjustment value

Normal paper,

Coated paper

Envelops Rear 0.9mm

It is a major premise that parallel adjustment is done correctly for the space between head and platen (PG adjustment value above) which can be changed by platen gap adjustment. Parallel adjustment should be done when the serviceman mounts the carriage guide shaft on the printer mechanism during the production process or repair service. In the adjustment, the space between parallel adjustment lever and gauge should be 1.04 mm.

Front 0 mm

(1.1mm between head and platen) (2.0mm between head and platen)

2-1

Rev. A

Chapter2 Operating Principles

2.1.1.3 Paper Feed Mechanism and Pump Mechanism

Mechanisms that send the paper in the hopper to inside the printer and perform constant paper feed in order to perform printing on the sent paper are called paper feed mechanism as generic name. In the Stylus Color 600, 4-phase, 200-pole hybrid type pulse motor is used in the PF motor as a motive power of the paper mechanism and driving is done at 2-2 and 1-2 phase drive method. This motor is not only used as a power source for paper feed mechanism but also used as power source of pump mechanism which is necessary for print head cleaning. By using this pulse motor, it becomes possible to use high speed driver or intermittent drive for the various paper feeds and pump operations such as paper feed, slight paper feed, high and low speed absorption of pump operations. Following tables(Table 2-7 and 2-8) show PF motor specifications and control method at each mode.

Table 2-7. PF Motor Specification

Item Description

Motor type 4-phase/200-pole Stepping motor Drive voltage Coil Resistance

Drive frequency [cps (pps)] 400 - 4320Hz Control method Bi-pola Drive

Table 2-8. Motor Control Method at Each Mode

Mode Drive Method Drive Frequency

Paper feed A 2-2 phase 4320 231 Slight paper feed 1-2 phase 400 2500 Slight paper feed 1-2 phase 2400 417 High speed attraction of pump 2-2 phase 4100 243 Low speed attraction of pump 1-2 phase 1800 555 Low speed paper feed 1-2 phase 1200 833 Paper feed B 2-2 phase 3400 294 Paper feed C 1-2 phase 4000 250 Ordinal absorption of pump 1-2 phase 4100 243

42VDC ±5%

7.8 ohms ±10% (per 1 phase under 25°C environment)

Pulse Space

[Hz]

(ƒÊs)

Following tables show 1-2phase drive method at PF motor drive and each drive sequence at 2-2phase drive method.

Table 2-9. 1-2 Phase Drive Method

Step No. Clockwise Counter clockwise

Phase A Phase B Phase A Phase B

1 +2/3 +2/3 +2/3 +2/3

0+1+10

2 -2/3 +2/3 +2/3 -2/3

-1 0 0 -1

3 -2/3 -2/3 -2/3 -2/3

0-1-10

4 +2/3 -2/3 -2/3 +2/3

+1 0 0 +1

Table 2-10. Drive Sequence at 2-2 Phase Drive

Step No. Clockwise(CW) Counter clockwise(CCW)

AB A B

1 +2/3 +2/3 +2/3 +2/3 2 -2/3 +2/3 +2/3 -2/3 3 -2/3 -2/3 -2/3 -2/3 4 +2/3 -2/3 -2/3 +2/3

Rev. A

2-1 1

EPSON Stylus Color 600

Papers on the ASF (auto-sheet-feeder) supplied by the user are carried to the printer inside by paper pick up sequence. Unlike the previous models, ASF of Stylus Color 600 has mufti feed prevention mechanism. Following explains this function and figure below shows its mechanism.

[1. Multi feed prevention mechanism]

When the Load/Eject button is pressed, reversed rotation of PF motor is performed. The return lever resets papers which are already in the out of stand by position in the stand by position and make it possible to perform stable paper feeding by picking up the paper again.

Pintch Roller

D-Cut Roller

CAM

Hopper

Hopper spring

Pad spring

Return Lever

[Standby state]

Figure 2-9. Multi Paper Feed Prevention Mechanism

Following explains process of multi feed prevention step by step. Refer to the figure above and confirm its operation.

[Returning state]

[Step 1] [Step 2] [Step 3]

[Step 4]

When the load/Eject switch is pressed or printing order is input from the PC, PF motor rotates

counterclockwise and makes the CAM rotate towards direction of 1 in the figure above.

When the CAM covers the notch by the return lever, that position is considered as home

position, being monitored by ASF sensor.

When the CAM rotates toward 1 in the figure above, the return lever is pushed by the notch

of CAM and falls towards 2. At this time, the return lever moves to direction 3 by this motion, and push down the pad which is waiting in the below part. At this time, friction of pinch roller and pad will be canceled. The papers which are out of stand by position by the previous paper feed motion are returned to the paper stand by position by flip over strength of return lever. After this, PF motor rotates clockwise and the printer goes to pick up sequence.

2-1

Rev. A

Chapter2 Operating Principles

In the paper pick up mechanism of Stylus Color 600, same mechanism as Stlylus Color IIs/820 are applied. This mechanism changes adjoined lines of gear by colliding trigger lever with carriage unit and convey the motive power on the platen to the ASF side(paper roller). The figure below shows mechanism with explanation.

[2. Paper pick up mechanism]

When the Load/Eject switch is pressed or printing order is input, the carriage unit moves until the left edge and collides with paper pick up trigger lever. When the carriage collides with this trigger level, a planetary gear located on the same axis is also pushed at the same time and conveys the motive power on the platen to the adjoined gear line side for ASF drive.

Paper Pick Up

ASF Roller Drive Gear

Planetary Gear

Trigger Lever

Eject Roller Drive Gear

Eject Roller Transmission Gear

PF Motor Pinion Gear

ASF Roller Transmission Gear

Platen Roller Drive Gear

Platen Roller Transmission Gear

Figure 2-10. Paper Pick Up Mechanism

[3. Paper feed mechanism]

After papers in the ASF receive controls from pick up and multi feed prevention mechanism, they are sent to the printer inside. The papers picked up by paper roller in the ASF goes to between platen and roller support. Also, the eject roller pushes out the paper completely until the end and the roller support drops the paper in the eject tray. The eject roller is driven with an eject paper notched roller as pair where is located on the paper eject roller. Paper eject notched roller solves the deflection of paper that is in the between platen eject notched roller and paper eject roller and always keep a certain space between print head and paper surface. The figure below shows paper feed mechanism.

Paper

Eject Notched Roller

Support Roller

PF Roller

Eject Roller

Figure 2-11.Paper Feed Mechanism

Rev. A

2-1

EPSON Stylus Color 600

2.1.1.4 Ink System

Ink system mechanism consists of 1)cap mechanism, 2)pump mechanism, 3)carriage lock mechanism, 4)waste ink absorber and 5)ink sequence. Out of these mechanism, from 1) to 4) are physical mechanism and parts which are mounted on the printer mechanism and 5) ink sequence is performed automatically by firmware. Also, unlike previous models, since Stylus Color 600 has no engage/disengage mechanism to change over pump mechanism and paper feed mechanism, it is one of the major characteristics that pump and platen are always at work whenever the PF motor is driven. The figure below shows head positions when the ink system and various ink sequence are performed.

Platen Drive Gear

Eject Roller Drive Gear

Eject Roller Trasmission Gear

Head Cleaner

Carriage Lock

PF(Pump) Motor Pinion

Figure 2-12. Ink System Mechanism

Printable Area

2975 dot

Pump Roller

Cap Unit

CRHP

ABCDEFGH

A: Dummy pumping position B: Home position C: Flashing position(right side) D: I/C replacing position E: Wipping complete/Rubing start position F: ASF Standby position G: Flashing position H: ASF pick up position

Figure 2-13. Major Ink Sequence Position on the Carriage Mechanism

2-1

Rev. A

Chapter2 Operating Principles

2.1.1.4.1 Pump Mechanism

In the Stylus Color 600, there is no switch or mechanism to change over the pump/paper feed mechanism. Therefore, whenever the paper feed/pump motor rotate, pump drive roller in the pump unit inside rotates. However, ink absorption/non ink absorption are separated by the roller rotational direction. Also, even if the pump driver rotates toward ink absorption and the carriage position is in the false absorption position, only driving in the pump mechanism is performed and actual ink attraction is not done. The figure below shows process of conveying motive power to the pump drive roller.

Gear A

Axis of Paper Eject Roller

Gear B

Gear C

Actually, these parts are one unit.

Compression Spring

Pump Drive Roller

Figure 2-14. Pump Mechanism Power Transmission Process

The process of conveying the motive power to the paper eject roller by rotating the pinion of PF motor is descried in figure 2-14. This motive power is conveyed to the Gear C through Gear B. In the figure above, although the lever in order to drive Gear C, carriage lock, head cleaner mechanism is shown separately, it is constructed as one unit. Since the engagem ent of these two parts depends on the tension of the compression spring, if the lever is burdened, only Gear C and pump roller rotate and no more motive power is conveyed to the lever part.

Rev. A

2-1

EPSON Stylus Color 600

The table below shows PF/Pump motor rotational direction and pump system operation.

able 2-11. Relationship Between Pump Motor Rotation and Pump Operation

PF/Pump motor rotational direction Pump unit operation

Clockwise(CW) forward rotation

Counterclockwise(CCW)

backward rotation

The figure below shows the pump operation at clockwise and counterclockwise rotation.

1)Release from the Pump pressure welding

2)Head cleaner reset

3)Carriage lock reset

1)Rotation towards pump pressure welding

2)Head cleaner set

3)Carriage lock set

CW Rotation

Tube pressured

Figure 2-15. Pump Roller Rotation and it’s Operation

In the ink absorptive operation such as cleaning, flushing initial ink charge except for printing operation, ink in the ink cartridge drains to the waste ink absorber(pad) through the cap by the pump unit drive. In case of printing and flashing drive, ink is popped out by the PZT in the print head, but in case of absorptive operation such as cleaning and initial ink charge, ink absorption is performed only by the pump drive without PZT drive after the head surface is adhered to the cap. The next page explains cap mechanism and relation between printer operation and cap.

CCW Rotation

Tube released

2-1

Rev. A

Chapter2 Operating Principles

2.1.1.4.2 Cap Mechanism

In the cap mechanism, in order to prevent ink from being thickened on the head surface, it is controlled that the head surface stays adherent to the rubber frame of the cap surface when the power is off. The absorber is spread in the cap and can hold a certain amount of ink which is absorbed from the head without draining it to the waste ink pad. Also, in the bottom of abs orber, there are two valves in order to control adhesion of head and cap surface, and one exit to drain ink to the waste ink pad.

Flag for Carriage

Ink Eject Valve

Negative pressure release valve

Valve

Close state

Release state

Flag for frame

Head surface and cap are adhered each other. Actual and false absorptions.

During cleaning, initial ink charge, and right flushing.etc.

Ink absorption in the cap.

During left flushing and paper feeding,etc.

Figure 2-16.Cap Mechanism Operation Principle

If the carriage is out of HP(in this case, in the printable area or paper feed position), the valves on the cap mechanism stays in the position A in the figure above and are always closed. In this condition, the carriage collides with flag, actual ink absorption and slight ink absorption are performed. Also, by moving the carriage to further right side and colliding the flag for opening the valves with the frame, negative pressure is released in the state that head surface and cap are adhered. This makes it possible for ink on the nozzle plate surface to be ready for leaving from the cap in the stable condition.

Rev. A

2-1

EPSON Stylus Color 600

2.2 Electrical Circuit Operating Principles

Stylus Color 600 contains the following four electric circuit boards.



C206 PSB/PSE board



C200 Main board



Head Driver board



C206 PNL board

C206 PSB/PSE, C200 board are explained in this section. The head drive board is installed in the head uniton the carriage. The figure below shows major connection of the 3 boards and their roles.

AC100V

RCC Switching Regulator (C206 PSB/PSE Board)

CR Motor

PF MOTOR (Pump Motor)

+5 V DC

+42 V DC

Main Control Board (C200 Main Board)

PE Sensor

BCO/CCO Sensor

INK END Sensor (Firm Wear)

+5 V DC

+42 V DC

ASF Lever Position Sensor

2-1

Thermistor

Print Head

Head Drive Board

Figure 2-17. Electric Circuit of Stylus Color 600

Rev. A

Chapter2 Operating Principles

2.2.1 C206 PSB/PSE Board

C206 PSB/PSE board is a power supply board with a RCC switching regulator, which generates +42VDC for drive part and +5VDC for logic part to drive the printer. One of the major c haracteristic of this board is that the same secondary switch is used as Stylus Color series printer. By using this switch, the following difference can be seen as superficial phenomena compared with products applied with primary switch method, such as Stylus Color IIs, II and Stylus 800/1000 series printer. The table 2-12 below shows application of voltages generated by C206 PSB/PSE board.

1) Even if the switch is turned off during the middle of printer operation, since the driving power is turned off after the carriage goes back to the carriage lock position, the possibility of clogging ink nozzle will be decreased.

2) If the switch is turned off when the papers in the printer are still being carried except for the papers in the hopper, the same operation mentioned above is performed and the driving power is turned off after the paper is completely ejected.

Table 2-12. Application of DC V oltage

Voltages Application

+42VDC

+5VDC



CR Motor



PF/Pump Motor



Head driving power supply



Power supply for logic control



System control signal



Sensor circuit power supply voltage



LED panel drive power supply



Nozzle selector control signal power supply voltage

Figure 2-18 shows block diagram of C206 PSB/PSE board. The process from the input of AC100V to the output of DC42V and 5V is explained below.

1) Regardless of the state of power switch(On or OFF), the voltage is always applied in the primary side of the power supply board from the moment or at the state that AC-plug is plugged in. At this time, F1 plays a role of preventing AC100V from coming into the F1. L1 and R1-R2 also prevent high harmonic wave noise generated in the RC circuit filter which consist of C1•`C4 and R1•`R2 from going out, and eliminate the noise from outside here.

2) The AC is full-wave rectified by diode bridge DB1, and converted to electrolytic capacitor C11.

3) The pressured up direct current makes Q1 On through the starting resistor R31 and starts the primary side of the circuit.

4) When the primary side is On state, the energy(current) led by the electromagnetic induction through the trans (T1) does not flow to the secondary side since the diode(D51) on the secondary side is installed in the opposite direction.

5) When the energy which is charged in the trans is reaching the saturated state, the voltage which makes the Q1 On becomes weak gradually. At the point that this voltage drops at the certain voltage, C13 absorbs the current in the opposite direction and Q1 is quickly shut off by the resulting sharp drop.

6) When the primary side is turned off, the energy charged in the T1 is opened according to the diode(D51) direction which is installed on the secondary side. Basically, 42 V DC is output by these circuit operations and the number of T1 spiral coil .

x AC in voltage by smoothing

7) +5VDC is generated by pressured down this +42 V DC as power supply. IC51 pressures down the +42 V DC and generates precise +5V DC by chopping off the output, forming the standard santooth waveform by the outer RC integration circuit.

Rev. A

2-1

EPSON Stylus Color 600

DB1 C11

Full Wave

Rectifier circuit

L1,R1-R2 C1-C4

Filter Circuit

Prevention of current flow

Smoothing

circuit

Main switching

circuit

Q2,Q3,

Feedback circuit

Q31,PC1

D51

C51

Smoothing

circuit

T R A N S

C84,Q84

Power OFF Delay circuit

ZD81-86, ZD51

+42V constant voltage control circuit

+42V overvoltage

protection circuit

ZD52,87

+5V generation

(IC51)

circuit

ZD53

+5V overvoltage

protection circuit

+42VDC

+5VDC

PC1

Photo coupler

PSO Signal

AC100V

Figure 2-18. C206 PSB/PSE Board Block Diagram

The C206 PSB/PSE board has various control circuits to stop output if malfunction on the power supply board, on the main board or on the duty of printer mechanism happen. Following explains each control and protection circuits.

1) +42V Line Constant Voltage Control Circuit:

The output level of the +42V line is monitored by a detection circuit consisting of seven Zener diodes. This circuit prevents voltage from dropping for constant output voltage.

2)+5V Line Over voltage Protection Circuit:

This protection circuit is in the same line as +42V overvoltage protection circuit is located. The output voltage level of the +5V line is monitored by a Zener diode. This circuit shuts down the circuit operation forcefully when the voltage level exceeds +9V.

3) +42VDC Line Over voltage Circuit

This ciruit is in the same line as +5V line over voltage protection circuit is located. The output level is monitored by two Zener diodes. If the voltage level exceeds +48VDC, this circuit stops circuit operation forcefully.

4) +5V Line Constant Voltage/Constant Current Control Circuit:

The output current is monitored by a +5VDC generation switching control IC(IC51), which also monitors the output voltage. This information is input to the internal comparator and stabilizes+5V line. Also, operation of the secondary side switch is explained below.

1) When the power is turned on, Q1 repeats ON/OFF automatically along with the increase and

decrease of energy on the trans coil at the primary side. While the power is being on, PSC signal is input to the power supply board from the C200 main board.

2) This signal turns Q84 on and it becomes possible to discharge energy between 8-9 of T1.

At this time, even if the power is turned off, the electrolytic capacitor keeps Q84 on for a while. By this electrolytic capacitor, output is hold at least 30 seconds even after the power is turned off. This time helps the printer to complete the P-Off operation.

2-2

Rev. A

Chapter2 Operating Principles

2.2.2 C200 MAIN Board

Various DC voltage generated on the C206 PSB/PSE board is added various signals in order to drive the printer function on the C200 MAIN board, and the drive of CR/PF(Pump) motor and printing head is performed. This control board consists of system part and drive part. In the system part, there are formation and controls of various signals in order to drive the CR/PF(pump) motor, sequence control by input from the sensor circuit, and also output of signal to select appropriate nozzle for the printing head. On the other hand, the drive part has constant current drive by the driver IC for the CR/PF(pump) motor drive and trapezoidal waveform circuit for head drive.

C200 MAIN Board

PROM4M (IC3:EPROM)

M5M411664 (IC4:D-RAM)

4-32M (IC6:CG)

System

DRAM Control

Head Temperature

From A

From B

TPM 95C061 (IC1:CPU)

SN75LBC775 (IC16 Transceiver)

H8D2813D (IC7)

LB1845 (IC14)

LB1845 (IC15)

Timer (IC10)

E05B43 (IC2: Gate Array)

EEPROM (IC11)

Print Head

Carriage Motor

PF(Pump) Motor

CR/PF Motor Drive

Panel I/F

Head Common Drive

Power

to B

to A

Centornics I/F

Serial I/F

Sensor Circuit

Figure 2-19. C200 MAIN Control Board Block Diagram

[CPU]

The C200 MAIN board is controlled by a 16-bit CPU(TMP95C061AF) running at 25MHz. Gate array manages most of controls and monitors. Likewise Stylus Color, the D-RAM is applied for RAM which is used as work area for receiving data and developing the data and CPU manages its control such as CE, RAS/CAS controls.

[Gate Array]

E05B43 controls following functions.



Motor control : Each motor performs data transmission(W1-2 phase) that motives

Micro-Step.



Head voltage control: In the ink jet printers, drive voltage wave form(trapezoidal wave form)

in order to drive PZT is formed in the various shapes according to the

types of the printers. Therefore, it is necessary to form appropriate drive form for each head. Head voltage control forms necessary waveform for each control

signals and outputs them.



EEPROM control: The correction value to eliminate the error of each printers at the

production process is installed in the fixed address of IC. When the power is turned off, the contents set by users is written instantly, and is red to the RAM when the power is turned on.



Sensor Data: The sensor detects information at the various conditions, which is

necessary for the printer operation. The gate array recognizes signals

and changes over to the next control.

Rev. A

2-21

EPSON Stylus Color 600



Timer Data: The timer IC that uses lithium battery as power source monitors how

long the power is off. When the power is turned on, it is changed to appropriate cleaning level according to the time that the power is off.



[Common Driver IC]

The trapezoidal wave form circuit for head drive is became to HIC from the previous discreate structure. Because of this, it is not necessary to adjust the adjustable VR on the board during production process. Various electric charge/discharge control signals are all processed in the HIC.

[CR/PF Motor Drive Circuit]

Constant current drive is performed by the HIC. Out of this, only CR Motor is controlled for Micro-Step control and HIC becomes poss ible to flow the appropriate current value at each steps. ( PF Motor has only 1-2, 2-2phase drive method). Also, bipolar drive is performed on the 4 cables individually. Following pages explain each major control circuit.

Serial Data: The gate array receives serial data through the transceiver IC. Parallel I/F control: With the use of IEEE1284 Nibble mode, it became possible not only to

receive the data from the host but also to return various information

which the printer possesses to the host.

2-2

Rev. A

Chapter2 Operating Principles

2.2.2.1 Reset Circuits

The reset circuit prevents the CPU from running away, which is caused by the unstable voltage in the logic line during the power ON/OFF. Also, this circuit monitors level of power voltage at the overloading or malfunction on the circuit and manages the printer to operate normally, keeping the damage to the printer minimum during the abnormal situations. On the C200 main board, 2 ICs are mounted ; IC for monitoring the voltage level (logic line) and IC for monitoring the voltage level (power line) and both are monitored by the gate array and CPU.

The figure below shows reset circuit block diagram with explanation on the next page.

+5V

+42V

R10

PST592D (IC8)

TMP95C061 (IC1)

P84

/NMI

M51955B (IC9)

GND

Vout

NRES

Vcc

GND

P85

/RESET

NC8

VCC

OUT

NC5

C47

+5V

176

R138

E05B43 (IC2)

/RESET

Figure 2-20. Reset Circuit Block Diagram

[PST592(IC8)]

The actual operation of the circuit is to keep outputting Low signal until +5V line goes up to +4.2V when the power is on, and to cancel the reset signal with output of High signal when the voltage goes up more than 4.2V.

[M51955(IC9)]

This IC also performs as monitor on the power line same as the reset IC for logic described above. High/Low is judged at the 33.2V.

[Relation between IC8 and IC9]

Reset signal which is low and output by IC9 is input to the CPU and gate array and system reset operation is performed. Also, this signal is detected on the IC9(IC for reset monitor, power line) and outputs the same Low signal towards CPU/NMI terminal by being input to NC5.

Rev. A

2-2

EPSON Stylus Color 600

2.2.2.2 Sensor Circuits

The following sensor circuits are mounted in the Stylus Color 600 and selects appropriate operations based on the returned information.



ASF Sensor: An ASF sensor detects the position of return lever when the power is

(Photo) turned on, and causes the paper to be picked up by the pick up roller

from the normal initial condition. (Refer to section 2.1.1.3 for detail.)



PE Sensor: A PE sensor determines if there is paper in the printer. Based on the (Photo) signal form this sensor, a particular paper edge treatment such as

Micro-weave printing is performed.



HP Sensor: A HP sensor detects the carriage home position. (Photo) It is used for managing printing position and cleaning, etc.



Thermistor Sensor: A thermistor sensor keeps stable printing quality, changing PZT drive

voltage(VH) slightly according to changes of environmental

temperature.



Cartridge Sensors: Cartridge sensors are built into the Bk, CMY cartridge on the carriage

unit respectively to determine if the cartridge is installed or not when it is exchanged or the power is turned on. In case of Stylus Color 600, the counter is reset at every time the cartridge is removed.

The figure below shows sensor circuit. Out of the data such as EPW with IEEE 1284 Nibble mode to be returned to the host, the data to indicate ink consumption is calculated and managed by the counter of the firmware. Therefore, it is omitted here.

TMP95C061

+5V

(IC1)

Vref

CCO

CN8

BCO

+5V

AGND

AN0

THM

CN8

E05B43 (IC2)

SW8

SW7

SW6

SW5

SW4

CCO(199)

BCO(201)

PE(203)

HP(205)

ASF(207)

Figure 2-21. Sensor Circuit Block Diagram

+5V

PEV

GND

HPV

GND

ASFV

GND

ASF

CN4

CN5

CN11

2-2

Rev. A

Chapter2 Operating Principles

2.2.2.3 EEPROM Control Circuits

The EEPROM of Stylus Color 600 has following contents. Gate array E05B43(IC2) controls operations of reading data when the power is on and writing data when the power is off.



Ink consumption(Bk, CMY)



CL counter(Various cleaning operations that are previously done are memorized)



Destination information



Information of various adjustment values(Bi-D, VH voltage, etc.)



CPSI pass word



Other various setting values by the user

EEPROM is connected to the Gate array by 4 lines and performs following functions. The figure below shows EEPROM control circuit.



CS : Chip selection signal



CK : Data synchronism clock pulse



DI : Data writing line(serial data) at power off.



DO : Data reading line(serial data) at power on.

+5V

93C46(IC11)

VCC

ORG

GND

130

129

128

127

E05B43(IC2)

ECS

ECK

EDO

EDI

Figure 2-22. EEPROM Circuit Block Diagram

Rev. A

2-2

EPSON Stylus Color 600

2.2.2.4 Timer Circuit

The lithium battery is mounted on the C200 MAIN board and calculates how long the printer is not in used. The timer IC(IC10) starts counting with oscillation motivated by the CR3 using this battery as a power source. The figure below shows connection of the Timer circuit.

+5V

BAT1

CR3

VDD

XOUT

XIN

VSS

S-3510ANFJ (IC10)

/SCK

SIO

+5V

Figure 2-23. Timer Circuit Block Diagram

The followings explain about operation of this circuit.



When the printer is on, power is supplied to the Timer IC by applying +5V quickly through the D4.



This power is also used for the power to oscillate the outer CR3. The oscillation wave form is input to XIN terminal.



Since the oscillation wave form of CR1 is analog waveform, it is processed into the pulse form in the Timer IC.



When the printer is turned on, the Timer IC outputs power off time as serial data to the gate array.



Once the printer is turned off, 3VDC of BAT1(lithium battery) is supplied as power source for the Timer IC through D1.



Since +5V at the power on is higher than +3V of the lithium battery, the power is not being consumed from the lithium battery.

125

122

123

126

TCE

TIO

TCLK

TDATA

E05B43(IC2)

2.2.2.5 DRAM Control

In the Dynamic RAM control, output and formation of CAS and RAS control signals become necessary in addition to the output of CS signal. The CPU TMP95C061AF not only controls that but also perform the output of CS signal of P-ROM. Refresh timing is performed in the CAS Before RAS.

2-2

Rev. A

Chapter2 Operating Principles

2.2.2.6 Print Head Control Circuit

The print head control circuit of Stylus Color 600 has following characteristics.



Common waveform circuit became one HIC.



Micro-vibration mode is added.(when the CR motor is accelerating)



High speed drive 14.4KHz (trapezoidal wave form



Enhanced Nozzle configuration (resolution in the vertical direction)90dpi (However, black nozzle is 2 lines structure)

Also, Stylus Color 600 has Micro-dot control as dot shooting control. There are total three dot shooting controls on this printer.

• Normal Dot mode(Single Firing)

• Normal Dot mode(Dual Firing)

• Micro Dot mode

• Micro-Vibration(Not printed)

The control circuit is considered as two divided parts; 1) trapezoidal wave form generation circuit (common drive circuit) to drive PZT in the head, and 2) Nozzle-selector drive circuit to determine which nozzle should be used. The Nozzle-Selector is attached to the head unit just like the previous models. The common drive circuit is became as HIC and mounted on the C200 main board.

[Common drive circuit]

+5V

+42V

H8D2813D (IC7)

E05B43 (IC2)

CHG

KC1

ND1 ND2 MD1

MD2 DATA DATA

/STB

CLK

VM VCC

CHG

KC1

ND1

ND2 MD1

MD2 DATA DATA /STB

CLK

CTC

DTB

GND1 GND2

23 22 21

CN8

20 19 18

Figure 2-24. Print Head Control Circuit Block Diagram

The shape of trapezoidal wave form will be different according to the printing operation, slight vibrations at the non-printing nozzle and waiting condition. However, IC7(H8D2813) generates all wave forms as drive wave forms by resistance(electric) welding control of common voltage drive control signal that is output from the IC2(E05B43) in the figure above.

Table 2-13. Specifications of H8D2813 Operation

Item Contents

Power Voltage

42V ±5% Starts supplying after 5V rises and be stabilized./ Stops supplying before +5V drops.

Final drive element Reset Operation

2SC3746(for charging), 2SA1469(for discharging) Off on the both charging and discharging sides.

Supplies drive power source. This common voltage trapezoidal wave form can be observed anytime after the +5V rises even if there is printing data or not. (Q7:3-pin, or Q9:3-pin and GND on the C200 main board)

Rev. A

2-2

EPSON Stylus Color 600

[Nozzle Selector Drive Circuit]

In order to motivate the print head to carry out printing, it is necessary to transmit the print data to the appropriate nozzles, which becomes direct signals to drive PZT. This data transmission is performed by the serial transport method, however the data output for each black and CMY head is transmitted by the parallel method. The figure below shows data transmission circuit.

COM

NCHG

Gate Array E05B43(IC2)

U102 IR2C73C

SCLK

LAT

XCHG

COM

VHV

VD1/2

For Cyan & Yellow data latch

CLK

SI1

SI2

SI3

LAT

THM

Figure 2-25. Nozzle Selector Circuit Block Diagram

SI1

SCLK

LAT

XCHG

COM

VHV

VD1/2

For Black & Magenta data latch

CLK(Clock) pulse considered as source of serial communication is commonly used for both black and CMY. The serial data transmits data as 64-Clock unit, synchronizing with this pulse. After the data transmission of 64-Clock is completed, LAT(Latch) signal is activated and is hold temporarily in the IR2C72C(U101) At this time, since the num ber of nozzle for Color head is fewer(21- nozzles) and differ ent from the ones for black head, 0 is transmitted forcefully for the data for 43 nozzle (64-21=43).

2-2

Rev. A

Chapter2 Operating Principles

After the data transmission by the nozzle selector(IR2C72C, IR2C73C) is completed and a certain time passes, trapezoidal wave form generated by the common drive circuit once sends electric current to the PZT for the proper nozzles which are determined in the nozzle selector circuit. This motivates PZT and ejects the ink in the cavity. The figure below shows normal dot data transmission timing in order to from 1-dot.

Common Waveform

Com

64-dot

SCLK

LAT

NCHG

CHG

ND1

ND2

KC1

Figure 2-26. Common Drive Circuit Block Diagram

Rev. A

2-2

EPSON Stylus Color 600

2.2.2.7 PF(Pump) Motor Drive Circuit

IC15(UDN2917) is used for driving PF(Pump) motor. In the IC, Bi-pola drive PWM current control type is performed, making it possible to provide stable current to each phase of motor. Also, it makes possible to change over the reference voltage as drive current settings by making 3 combinations(100%,66% and 33%), using 4 current setting ports(input). (Refer to 2.1.1.3 for motor and details about sequence) However, firmware does not drive Micro-step in the Stylus Color 600. The figure below shows the block diagram of Unlike using Uni-Pola drive, there is no cable for GND in the motor since Bi-Pola drive is performed in the PF motor.(Refer to section 2.1.1.2 since carriage motor interior connection diagram has the same connection as the PF motor’s phase connection. This helps to understand the reason why the direction of current is controlled freely in each phase by the combinations of high/low control signals.

E05B43(IC2)

PFV0-PFV3

PFA0

PFA1

PFB0

PFB1

PFAPH

PFBPH

46-49

Current Selection Resistor

UDN2917(IC15)

I10

I11

I20

I21

PH1

PH2

Vref1

Vref2

SENS1

SENS2 E2

Figure 2-27. PF(Pump) Motor Circuit Block Diagram

The current control is perf ormed by output port(46•`49 pin) of E05B43(IC2), its outer res istance circuit and driver IC15(UDN2917). First, firmware possesses 16 ways of current values as current table out of combinations made by 5 resistance which are connected to the output por ts( 46 •`49 pin) in the gate ar ray. On the other hand, signals which are output by combination of these res istanc e’s on/off are input in the 25 and 44 pins. HIC is driven at the same standard voltage for each A and B phase.

PFA

PF/A

PFB

PF/B

Actual on/off control to send electricity through the motor is performed by the process that SEN1 and SEN2 terminals (2 and 13 pin) detect the input signal from the gate array which is monitored by the interior comparator, confirm the current that actually flew the phase as current value again and perform the feed back to the on/off. The figure below shows relation between input signal to the driver IC and motor control.

+42V

+5V

It varies load resistance by the control signal and changes the ratio of partial pressure.

If feeds back the current

that actually flew in the coil to the comparator.

Note:

In case of PF motor, same reference voltage is input to UDN2917 for both phase A and B, but differet reference voltage is set individually for phase A and B, in case of CR motor.

E05B43(IC2) Gate Array

R2 R3

UDN2917(IC14,IC15)

Figure 2-28. PF(Pump) Motor Driver Internal Block Diagram

2-3

Rev. A

Chapter2 Operating Principles

2.2.2.8 CR Motor Drive Circuit

In the CR motor, the same UPD2917(IC14) as the PF motor has used. In the IC, Bi-pola drive PWM current control type is performed, making it possible to provide stable current to each phase of motor. Also, it makes possible to change over the reference voltage as drive current settings by making 3 combinations(100%, 66% and 33%), using 4 current setting ports(input). (Refer to 2.1.1.3 for motor and details about sequence) In the carriage motor, firmware supports the micro-step driving in the Stylus Color

600. The figure below shows carriage motor drive circuit.

E05B43(IC2)

CRA0

CRA1

CRB0

CRB1

CRAPH

CRBPH

MTBV0-V4 MTAV0-V4

Current Selection Resistor

UDN2917(IC14)

I10

I11

I20

I21

PH1

PH2

Vref1

Vref2

SENS1

SENS2 E2

PFA

PF/A

PFB

PF/B

Figure 2-29. Carriage Motor Circuit Block Diagram

Unlike using Uni-Pola drive, there is no cable for GND in the motor since Bi-Pola drive is performed in the CR motor.(Refer to section 2.1.1.2 since carriage motor interior connection diagram has the same connection as the PF motor’s phase connection. This helps to understand the reason why the direction of current is controlled freely in each phase by the combinations of high/low control signals.

The current control is performed by output port(60•`67 / 70•`71 pin) of E05B43(IC2), its outer resistance circuit and driver IC14(UDN2917). First, 10 resistance which are connected to the output port of the gate array divide each current values of phase A and B in the CR motor. The firmware possesses 16 different ways of current values individually as current table out of combinations made by 5 resistance which are connected to the output ports(46•`49 pin) in the gate array. On the other hand, signals which are output by combination of these resistance’s on/off are input independently in the 25 and 44 pins. HIC is driven at the different standard voltage for each phase A and B.

Actual on/off control to send electricity through the motor is performed by the process that SEN1 and SEN2 terminals (2 and 13 pin) detect the input signal from the gate array which is monitored by the interior comparator, confirm the current that actually flew the phase as current value again and perform the feed back to the on/off. (Refer to before page since it is same as the one of PF motor)

Rev. A

2-31

Chapter 3

Disassembly and Assembly

3.1 OVERVIEW...............................................................................................................1

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

3.1.2 Specification for Screws........................................................................................................... 2

3.1.3 Tools........................................................................................................................................... 2

3.1.4 Work Completion Check........................................................................................................... 3

3.2 DISASSEMBLY AND ASSEMBLY ............................................................................4

3.2.1 Housing Removal ...................................................................................................................... 5

3.2.2 Circuit Boards Removal............................................................................................................ 6

3.2.3 Control Panel Removal ............................................................................................................. 8

3.2.4 Waste Ink Pad Assembly Removal .......................................................................................... 9

3.2.5 Disassembling the Printer Mechanism.................................................................................. 10

3.2.5.1 Printhead Removal..................................................................................................... 10

3.2.5.2 Pump Assembly and Cap Assembly Removal........................................................... 12

3.2.5.3 CR Motor Assembly Removal .................................................................................... 14

3.2.5.4 PF Motor Assembly Removal..................................................................................... 16

3.2.5.5 ASF Assembly Removal............................................................................................. 18

3.2.5.6 Carriage Assembly Removal...................................................................................... 24

3.2.5.7 PF Roller Assembly Removal..................................................................................... 26

3.2.5.8 PE Sensor Assembly Removal .................................................................................. 28

3.2.5.9 HP Sensor Assembly Removal .................................................................................. 29

3.2.5.5.1 ASF Disassembly............................................................................................ 20

3.2.5.5.2 Pick-Up Roller Assembly Removal ................................................................. 22

Chapter 3 Disassembly and Assembly

3.1 OVERVIEW

This section describes procedures for disassembling the main components of EPSON Stylus Color 600. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Therefore, no assembly procedures are included in this section. Precautions for any disassembly or assembly procedure are described under the heading “WORK POINT”. Any adjustments required after disassembling the units are described under the heading “REQUIRED ADJUSTMENT”.

3.1.1 Precautions for Disassembling the Printer

See the precautions below when disassembling or assembling EPSON Stylus Color 600.

WARNING



Disconnect the power cable before disassembling or assembling the printer.



Wear protective goggles to protect y our eyes from ink . If ink gets in your eye, flush the eye with

fresh water and see a doctor immediately.



If ink comes into 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. The leakage may affect other devices close to the battery.)



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 may also be resulted.)



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

CAUTION

Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacture. Dispose the used batteries according to government’s law and regulations.



Risque d’explosion si la pile est remplacée incorrectment. Ne remplacer que par une pile du même type ou d’un type équivalent recommandé par le fabricant. Eliminer les piles déchargées s elon les lois et les règles de sécurité en vigueur.

CAUTION



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



When transporting the printer after installing the ink cartridge, be sure to pack the printer for

transportation without removing the ink cartridge.



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



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



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

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EPSON Stylus Color 600 Service Manual

3.1.2 Specification for Screws

Table 3-1 lists the abbreviation of screws and its use. Refer to the scr ew number in the following table to identify the type of screw shown in the disassembly procedures.

Table 3-1. Screw Identification Table

No. Shape Name Standard

1 CBS

(Cross/Bind/S-tight screw)

2 M3x10

M3x6

3 CBP

(Cross/Bind/P-tight screw)

4 M3x10

5 M3x8 6 CP

(Cross/Pan-head screw)

7 CBS with Washer

(Cross/Bind/S-tight screw with washer)

M3x6

M3x4

M3x6

3.1.3 Tools

Table 3-2 lists the tools required for dis assem bling and assem bling the printer. Use only specified tools to avoid damaging the printer.

Table 3-2. Required Tools

Name Availability EPSON

Parts Code

Philips Screw Driver (No.1) Commercially available B743800200 Philips Screw Driver (No.2) ditto B743800400 Tweez ers ditto B741000100 Hexagonal Box Driver (5.5mm) ditto B741700100

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Chapter 3 Disassembly and Assembly

3.1.4 Work Completion Check

If any service is made to the printer, use the check list shown below, to confirm that all works are completed properly and the printer is ready to return to the user.

Category Item Check Point Status

Main Unit Self-Print Test Is the printing successful?

Online Print Test Is the printing successful? Printhead Are any nozzles broken?

(Missing dot)

Carriage Mechanism Does it moves smoothly?

Is there any abnormal noise in its motion? Is there any dirt or scratch with the CR guide shaft? Is the CR Motor at the correct

temperature? (Not too hot) Paper Feeding Mechanism

Adjustment Specified

Adjustment

Lubrication Specified Point Does all the lubrication made at

System ROM Version Version (Latest): Packing Ink Cartridge Have brand-new ink cartridges

Protective Materials Have all relevant protective

Other Attachment,

Accessories

Is paper advance smoothly?

*No paper jamming

*No paper skew

*No multiple feeding

*No abnormal noise

Is the PF Motor at the correct

temperature? (Not too hot)

Is the paper path clear of all

obstructions?

Does all the adjustment made

correctly?

specified points?

Is the amount of lubrication

correct?

installed correctly?

materials been attached to the

printer?

Have all relevant items been

included in the package?



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary



Checked/Not necessary

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EPSON Stylus Color 600 Service Manual

3.2 DISASSEMBLY AND ASSEMBLY

This section describes the step-by-step disassembly procedures shown in the diagram below.

Housing

Removal

Section 3.2.1

Circuit Boards

Removal

Section 3.2.2

Control Panel

Removal

Section 3.2.3

Waste Ink Pad Assembly

Removal

Section 3.2.4

Printer Mechanism

Disassembly Seciton 3.2.5

Printhead

Removal

Section 3.2.5.1

Pump/Cap Assembly

Removal

Section 3.2.5.2

CR Motor Assembly

Removal

Section 3.2.5.3

PF Motor Assembly

Removal

Section 3.2.5.4

ASF Assembly

Removal

Section 3.2.5.5

ASF

Disassembly

Section 3.2.5.5.1

Carriage Assembly

Removal

Section 3.2.5.6

PF Roller Assembly

Removal

Section 3.2.5.7

PE Sensor Assembly

Removal

Section 3.2.5.8

HP Sensor Assembly

Removal

Section 3.2.5.9

Figure 3-1. Disassembly Flow

Pick-Up Roller Assembly

Removal

Section 3.2.5.5.2

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Chapter 3 Disassembly and Assembly

3.2.1 Housing Removal

Since the EPSON Stylus Color 600 has no lower housing as previous EPSON printers, the printer mechanism can be taken out by only removing the upper housing.

1. Open the printer cover and set the PG adjust lever on the right-hand side to (+) position.

2. Remove 4 screws (No.2) and remove the upper housing.

WORK POINT

Pull the front end of the upper housing while lifting up the upper housing to remove it.

CAUTION

Be careful not to pinch the cables with the posts of the upper housing when reins talling it. (Espec ially with the cables from the motors and doing so causes fatal damage to the mechanism and the electric circuitry.)

Upper Housing

Figure 3-2. Housing Removal

Rev. A

EPSON Stylus Color 600 Service Manual

3.2.2 Circuit Boards Removal

The electric circuit boards of the printer (Main control circuit board: C200 MAIN / Power supply circuit board: C206 PSB/PSE) are both installed on single metal chassis and attached to the printer mechanism. Therefore, first detach the metal chassis from the printer mechanism to remove the electric circuit boards.

1. Remove the upper housing (Refer to section 3.2.1)

2. Remove 5 screws (No.1 / three at the back of the printer mechanism and one each at both sides of the printer mechanism)

3. Slightly pull out “SHIELD PLATE, M/B” (metal chassis) from the printer mechanism and take out the cable holders inserted to the edge of “SHIELD PLATE, M/B”.

4. Fully separate “SHIELD PLATE, M/B” from the printer mechanism and remove all cables connected to the connectors on the main board; C200 MAIN.

5. If you need further to remove each electric circuit board from “SHIELD PLATE, M/B”, remove the screws fixing each board and remove it.



C200 MAIN BOARD: 10 screws (No.1 = 7 screws, No.6 = 3 screws)



C206 PSB/PSE BOARD: 4 screws (No.1)

Also disconnect the cable from the connector; CN10 (locking type) on the C200 MAIN, when you remove the C206 PSB/PSE BOARD.

WORK POINT

Unlock the connector CN6/7 on the C200 MAIN by pulling its loc k before disconnect the cables, and be sure to lock it when reconnecting the cables.

[Cable Holders]

SHIELD PLATE, M/B

Figure 3-3. SHIELD PLATE M/B Removal

Rev. A

Power Supply Board (C206 PSB/PSE)

Chapter 3 Disassembly and Assembly

MAIN Board (C200 MAIN)

SHIELD PLATE, M/B

Figure 3-4. Circuit Boards Removal

REQUIRED ADJUSTMENT

Be sure to perform the following adjustments when the C200 MAIN board is replaced:

1) VH Voltage value writing (Refer to Chapter 4 / Section 4.2.2.3.)

2) Printhead Angle Adjustment (Refer to Chapter 4 / Section 4.2.2.4.)

3) Bi-D Alignment Adjustment (Refer to Chapter 4 / Section 4.2.2.5.)

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EPSON Stylus Color 600 Service Manual

3.2.3 Control Panel Removal

1. Remove the upper housing (Refer to Section 3.2.1)

2. Remove 2 screws (No.1) and remove the control panel assem bly from the printer mechanism and

disconnect the flat cable from the connector of the panel assembly.

WORK POINT

By removing the control panel assembly, the stacker assembly is also detached from the printer mechanism as it held by the control panel assembly.

SHIELD PLATE, PANEL

C206 PNL Board

HOUSING, PANEL, LEFT

PANEL, ASSEMBLY

STACKER, ASSEMBLY

Figure 3-5. Control Panel Removal

Rev. A

Chapter 3 Disassembly and Assembly

3.2.4 Waste Ink Pad Assembly Removal

1. Removing the upper housing (Refer to section 3.2.1)

2. Removing the control panel assembly (Refer to section 3.2.3)

3. Remove 1 screw (No.4) at the right-hand side of the printer mechanism, that fixing “Waste Ink Pad Assembly”.

4. Remove “SPACER, TRAY” fixing “Waste Ink Pad Assembly” at the left-hand side of the printer mechanism and remove “Waste Ink Pad Assembly” by pulling it downward.

CAUTION

When you replace “Was te Ink Pad Assembly” to new one, be sure to perform the ink counter reset operation. (Refer to Chapter 1 / Section 1.4.2 for details)

WORK POINT

When re-installing “Waste Ink Pad Assembly ”, be sure that “Stopper, Stacker” that attached to the exit roller shaft is correctly pushed in to back of the projections of “Waste Ink Pad Assembly”.

SPACER, TRAY

Section (A)

[Projections]

Paper Exit Roller Shaft

Front side

STOPPER, STACKER

Push it to the back of projection

Figure 3-6. Waste Ink Pad Assembly Removal

Waste Ink Pad Assembly

Rev. A

EPSON Stylus Color 600 Service Manual

3.2.5 Disassembling the Printer Mechanism

This section describes the procedures for removing the main components consisting the printer mechanism.

3.2.5.1 Printhead Removal

1. Removing the upper housing. (Refer to section 3.2.1)

2. Rotate “Gear, 67.2” (largest gear at the left-hand side of the printer mechanism) toward the front to disengage the carriage lock mechanism, and move the carriage assembly to the middle of the printer.

3. Remove both black and color ink cartridges.

4. Remove both carriage cover assemblies from the carriage.

5. Remove “Twist Spring, 49” at left-hand side of the carriage and remove 1 screw (No.3) fixing “FASTNER, HEAD”. Then, remove “FASTNER, HEAD” from the carriage.

6. Unhook the flat cables from the carriage assembly and tae out the printhead unit from the carriage.

7. Disconnect the cables from the connector of the printhead unit.

WORK POINT



Notice that the grounding plate is installed in correct pos ition. (there are two fixing pins in the

carriage)



Be sure that fixing pin of the carriage is correctly located into the cut out of the printhead unit.

CAUTION



Once the ink cartridge is removed, it is not re-usable and always install brand-new ink cartridge

before returning the printer to the user.



When returning the printer to the user, be sure that the ink cartridge is installed and the carriage is at the capping position. (Turn the printer off while the carriage is at the capping position and pack it)

This part should be touching the CR axis receiver.

Make sure that this protrusion is in the U ditch of the priht head side.

Make sure that protrusion of carriage is in the hole of the earth board.

Carriage Assembly

Print Head

Figure 3-7.Printhead Installation

3-1

Rev. A

Printhead Unit

TWIST SPRING, 49

Chapter 3 Disassembly and Assembly

Flat Cable

FASTNER, HEAD

Figure 3-8. Printhead Unit Removal

REQUIRED ADJUSTMENT

When you remove or replace the printhead unit, be sure to perform the following adjustments:

1) Ink Initial Charge Operation (Refer to Chapter 4 / Section 4.2.2.2.)

2) VH Voltage Writing Operation (Refer to Chapter 4 / Section 4.2.2.3.)

3) Head Angle adjustment (Refer to Chapter 4 / Section 4.2.2.4.)

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.2 Pump Assembly and Cap Assembly Removal

1. Removing the upper housing. (Refer to Section 3.2.1)

2. Removing the control panel assembly. (Refer to section 3.2.3)

3. Removing “Waste Ink Pad Assembly”. (Refer to section 3.2.4)

4. Loosen 2 screws (No.1) fixing the exit frame assembly and disengage the frame from the side frames. Then, put the printer mechanism on its back as you see the bottom of the mechanism.

5. At the right-hand of the mechanism, unhook the cap assembly by releasing one hook and take out the cap assembly by lifting up the right end of it. (Note that the cap assembly is still connected to the pump assembly by the ink tube.)

6. Remove 2 screws (No.5) fixing the pump assembly to the frame.

7. Unhook the pump assembly by releasing one hook and slide the pump assembly to the right direction to remove it.

CAUTION

Be careful not to damage rubber part of the cap assembly. (Damaging the rubber part causes



incomplete capping and the nozzle condition become unstable.)



Be careful with the followings when you handle “CLEANER, HEAD”:



Do not handle it with bare hands and avoid attaching any oil or dust.



Make sure that the rubber side of “CLEANER, HEAD” is facing to the right.

WORK POINT



Be careful not to popping the components from the pump assembly when you remove it from the mechanism, as there is a spring inside the pump assembly.



Be sure that the ink tube from the cap assembly is routed to the correct position and not pinched by the cap assembly ad the frame.



Verify that “CLEANER, HEAD” moves smoothly by rotating “GEAR, 67.2” after you re-assemble the pump assembly. (Hold the cap assembly to the right while you rotating the gear for check)

Ink Tube Routing

(Ink tube goes behind of the cap assembly)

Viewed from front

(The ink tube is on the part of the cap assembly)

Figure 3-9. Ink Tube Routing

3-1

Rev. A

Loosen screw and lift up the exit frame

PUMP ASSEMBLY

Chapter 3 Disassembly and Assembly

Unhock the cap assembly

CAP ASSEMBLY

CLEANER, HEAD

Remove 2 screws and unhook the hooks to remove the pump assembly

Figure 3-10.Cap Assembly Removal

Pump Components Assembly Order

Figure 3-11.Pump Assembly Removal

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.3 CR Motor Assembly Removal

1. Removing the upper housing. (Refer to section 3.2.1)

3. Push “HOLDER, PULLEY, DRIVEN” inward to loosen the timing belt and detach the timing belt from the drive pulley of CR Motor assembly.

4. Remove 2 screws (No.1) and remove “MOTOR, ASSEMBLY, CR” from the mechanism.

WORK POINT

Be sure that the projections of the motor bracket is inserted to the holes of the frame properly.

REQUIRED ADJUSTMENT

When you replace “MOTOR, ASSEMBLY, CR”, be sure to perform the following adjustment:

1) Bi-D Alignment Adjustment (Refer to Chapter 4 / Section 4.2.2.5.)

COMPRESSION SPRING, 19.6 PULLEY, ASSEMLBLY, DRIVEN

Outside side frame

TIMING BELT

Inside side frame

HOLDER, PULLEY, DRIVEN

Figure 3-12. Driven Pulley Removal

3-1

Rev. A

Chapter 3 Disassembly and Assembly

The projections of motor assembly must locate inside the holes

Figure 3-13. CR Motor Removal

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.4 PF Motor Assembly Removal

1. Removing the upper housing. (Refer to section 3.2.1)

2. Removing “Waste Ink Pad Assembly”. (Refer to section 3.2.4)

3. By referring the figure below, remove the specified gears from the mechanism:



“GEAR, 67.2”



“COMBINATION GEAR, 8, 14.4”



“COMBINATION GEAR, 8.8, 21.6”



“GEAR, 36”

4. Remove 2 hexagonal lock nut and remove “MOTOR, ASSEMBLY, PF”.

WORK POINT

When removing the PF Motor, first, slightly pulling out the PF Motor from the frame and slide the



motor shaft to a larger cut out of the frame and remove it.



Be careful with the routing direction of the cable from the PF motor.

COMPRESSION SPRING, 0.9

GEAR, 67.2

MOTOR, ASSEMBLY, PF

Hexagonal Nut

COMBINATION GEAR, 8, 14.4

COMBINATION GEAR, 8.8, 21.6

GEAR, 36

Lock Ring

Figure 3-14. PF Motor Removal

3-1

Rev. A

MOTOR, ASSEMBLY, PF (behind the frame)

Cable Direction

Chapter 3 Disassembly and Assembly

Put the motor shaft once in a larger holde then slide it to a smaller hole

Figure 3-15. PF Motor and Frame

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.5 ASF Assembly Removal

1. Removing the upper housing. (Refer to section 3.2.1)

2. Remove the locking pin from center of “GEAR, 34” and remove “GEAR, 34” from the shaft.

3. Unhook the cables from the cable hook of the ASF and the printer mechanism.

4. Remove 2 screws (Refer to the figures) fixing the ASF and remove the ASF from the mechanism by detaching the projection of ASF (at left) from the hole of the mechanism.

WORK POINT



Make sure that the ASF is firmly attached to the mechanism.



Use proper type of screw at specified position (viewed from the back of the mechanism):

Right: “SHAFT, FIXING, CR” Left: Screw - No.7 (CBS with washer)

CAUTION

When re-installing the ASF, be sur e that no cables (exc ept the flat cable to the printhead) are pinc hed between the ASF and the frame.

Especially, if the cables from CR/PF Motor is pinched, there is a danger of short-circuit with the frame and possibly causes hazardous problem like over-heating, burning of components.

3-1

Rev. A

[CBS with washer]

Chapter 3 Disassembly and Assembly

SHAFT, FIXING, CR

GEAR, 34

The projections of ASF must be in these holes

Figure 3-16. ASF Assembly Removal

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.5.1 ASF Disassembly

1. Removing the ASF. (Refer to section 3.2.5.5)

2. Remove “TWIST SPRING, 41.2” by unhooking one end from the ASF frame and remove “LEVER, BRAKE”.

3. Remove “BUSH, FIXING, SHAFT” from the right end of “SHAFT, ROLLER, LD” and remove “LEVER, HOPPER, RELEASE”.

4. Move the left paper pack-up assembly to the middle of the ASF and remove “BUSH” from the shaft.

5. Push out “SHAFT, ROLLER, LD” to the left and remove “BUSH, FIXING, SHAFT, LEFT” from the left-end of the shaft by unhook it.

6. Unhook the top of “HOPPER, ASSEMBLY” from the both sides of “FRAME, ASF”.

7. Push out “SHAFT, ROLLER, LD” to the right while pulling up “PICKUP, ROLLER ASSEMBLY, RIGHT” slightly. Then, detach the left end of “SHAFT, ROLLER, LD” from “FRAME, ASF”.

8. Holds “HOPPER, ASSEMBLY” and remove the right cam part of “HOPPER, ASSEMBLY” through the hole at the right side of “FRAME, ASF”.

To this point, the ASF assembly is disassembled and both lef t and right “PICKUP, RO LLER ASSEMBLY”

and “HOPPER, ASSEMBLY” are separated.

WORK POINT



When removing “HOPPER, ASSEMBLY”, be careful that the grease that applied to the cam part

of it, is not attaching to other part of the ASF. If so, wipe it off completely.



Make sure that bushes at the both ends of the shaft are firmly attached.

3-2

Rev. A

LEVER, BRAKE

BUSH, FIXING, SHAFT, LEFT

Chapter 3 Disassembly and Assembly

HOPPER, ASSEMBLY

TWIST SPRING, 41.2

CAM part

FRAME, ASF

LEVER, HOPPER, RELEASE

BUSH

SHAFT, ROLLER, LD

BUSH, FIXING, SHAFT

Figure 3-17. ASF Disassembly

Rev. A

3-21

EPSON Stylus Color 600 Service Manual

3.2.5.5.2 Pick-Up Roller Assembly Removal

1. Disassemble the ASF and separate “PICKUP, ROLLER ASSEMBLY” and “HOPPER, ASSEMBLY”. (Refer to section 3.2.5.5.1)

2. Remove “COMPRESSION SPRING, 1.66” from the back of “HOPPER, ASSEMBLY”.

3. Pull out the right cam part of “HOPPER, ASSEMBLY” though the hole of right frame of “PICKUP, ROLLER ASSEMBLY, RIGHT”.

4. Unhook “ROLLER ASSEMBLY, LD” from the assembly frame and remove “COVER, ROLLER, LD” by unhooking it from the assembly frame. Then, remove “ROLLER ASSEMBLY, LD”.

WORK POINT



When you re-assemble, be sure that “ROLLER ASSEMBLY, LD” is hooked to assembly frame

firmly.



Before re-assemble the unit, make sure that “COMPRESSION SPRING, 1.66” is set on the assembly frame and hooked to the hooks as shown in the figure. This helps you easier assembly. After assemble the unit, do not forget to unhook the springs by rotating the spring from the holes located at the back of the ASF assembly.

3-2

Rev. A

COVER, ROLLER, LD (L/R)

HOLDER, SHEET, PF

ROLLER, ASSEMBLY, LD (L/R)

Chapter 3 Disassembly and Assembly

COMPRESSION SPRING, 1.66

ASSEMBLY FRAME

Set the spring and hook it to the assembly frame as illustrated, before re-assembly

Figure 3-18. Pick-Up Roller Removal

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.6 Carriage Assembly Removal

1. Removing the upper housing. (Refer to section 3.2.1)

2. Push “HOLDER, PULLEY, DRIVEN” inward to loosen the timing belt and detach the timing belt from the drive pulley of CR Motor assembly.

3. Take out “COMPRESSION SPRING, 19.6” from “HOLDER, PULLEY, DRIVEN”.

4. Remove “PULLEY, ASSEMBLY, DRIVEN” and the timing belt together from “HOLDER, PULLEY, DRIVEN” and remove “HOLDER, PULLEY, DRIVEN” from the mechanism.

5. Unhook “LEVER, PG” and remove it.

6. Unhook “LEVER, PG, SUB” and remove “LEVER, PG, SUB” and a spring washer from the end of “SHAFT, CR, GUIDE”.

7. Remove 1 screw (No.7) and rotating “BUSH, PARALLEL ADJUST, RIGHT” to match it with the cut out of the frame. Then, take out “BUSH, PARALLEL, ADJUST, RIGHT”.

8. Remove “CARRIAGE, ASSEMBLY” together with “SHAFT, CR, GUIDE”.

WORK POINT



It is good idea to marking the current position of “BUSH, PARALLEL ADJUST, RIGHT” before

removal. This enables you to omit the paper gap adjustment after the assembly .



Be careful with the direction of spring washer at the assembly. (A convex side must facing the

bush)

REQUIRED ADJUSTMENT

When you remove or replace the carriage assembly, be sure to perform the following adjustments:

1) Paper Gap Adjustment (Refer to Chapter 4 / Section 4.2.1.)

2) Head Angle Adjustment (Refer to Chapter 4 / Section 4.2.2.4.)

3) Bi-D Alignment Adjustment (Refer to Chapter 4 / Section 4.2.2.5.)

BUSH, PARALLEL ADJUST, RIGHT

Side frame of printer mechanism

Figure 3-19. BUSH PARA LLEL ADJUST Removal

3-2

Cut out of side frame

Rev. A

BUSH, PARALLEL ADJUST, LEFT

Chapter 3 Disassembly and Assembly

Carriage Assembly

SHAFT, CR, GUIDE

Spring Washer (Convex side must be facing the bush)

Figure 3-20. Carriage Assembly Removal

BUSH, PARALLEL ADJUST, RIGHT

LEVER, PG, SUB

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.7 PF Roller Assembly Removal

1. Removing the upper housing. (Refer to section 3.2.1)

2. Removing the carriage assembly (Refer to section 3.2.5.6)

3. Remove 2 screws (No.1) at the top of mechanism and remove “GUIDE PLATE, CABLE”.

4. From the back of the mechanism, unhook the springs from the frame and remove “PAPER GUIDE, ASSEMBLY, UPPER” (total 6 pieces).

5. Unhook “PAPER GUIDE, FRONT;B” and remove it.

6. Unhook the both shaft holders of “ROLLER, ASSEMBLY, PAPER EXIT” and remove it.

7. Unhook the left shaft holder of “ROLLER, ASSEMBLY, PF” and rotate it as to match with the cut out of the frame.

8. Slide “ROLLER, ASSEMBLY, PF” to the left and pulling it out.

WORK POINT



When reinstalling “PAPER GUIDE, ASSEMBLY, UPPER” at right-most position (viewed from the

front), be careful with the detection lever of the PE sensor.



Be careful not to damage the hook of “PAPER GUIDE, FRONT;B” during disassembly and

assembly.



Be careful not to damage the black coated part of “ROLLER, ASSEMBLY, PF” during

disassembly and assembly.



Be careful not to damage the gears.

PAPER GUIDE, LEFT

GUIDE PLATE, CABLE

PAPER GUIDE, ASSEMBLY, UPPER

SHAFT, PAPER GUIDE, UPPER

TWIST SPRING, 117.6

(6 pieces)

Figure 3-21. PAPER GUIDE ASSEMBLY Removal

3-2

Rev. A

PAPER GUIDE, LEFT

GUIDE PLATE, CABLE

Chapter 3 Disassembly and Assembly

PAPER GUIDE, ASSEMBLY, UPPER

SHAFT, PAPER GUIDE, UPPER

TWIST SPRING, 117.6

(6 pieces)

Figure 3-22. ROLLER, ASSEMBLY, PAPER EXIT Removal

ROLLER, ASSEMBLY, PAPER EXIT

PAPER GUIDE, FRONT;B

Figure 3-23. ROLLER, ASSEMBLY, PF Removal

Rev. A

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EPSON Stylus Color 600 Service Manual

3.2.5.8 PE Sensor Assembly Removal

1. Removing the upper housing. (Refer to section 3.2.1)

2. From the front side of the mechanism, unhook two hooks fixing “SENSOR, ASSEMBLY, PE” to the

3. mechanism. Then, slide it to upward to remove it. After removal, disassemble the assembly if necessary.

WORK POINT

When re-install the assembly, be sure that the sensor lever is corr ectly insert ed into a hole of “PAPER GUIDE, ASSEMBLY”, UPPER”.

Release these hooks to remove the PE Sensor Assembly

From the back side of the mechanism

3-2

HOLDER, PE

To frame

BOARD ASSY., PE

Figure 3-24. PE Sensor Assembly Removal

LEVER, PE

Rev. A

Chapter 3 Disassembly and Assembly

3.2.5.9 HP Sensor Assembly Removal

1. Removing the upper housing. (Refer to section 3.2.1)

2. Detach the cable from the sensor and remove it by unhook it from the frame.

SENSOR, HP

Rev. A

CR MOTOR

Figure 3-25. HP Sensor Removal

3-2

Chapter 4

Adjustment

4.1 OVERVIEW...............................................................................................................1

4.1.1 Required Adjustments .............................................................................................................. 1

4.1.2 Tools Required for Adjustment................................................................................................ 1

4.2 Adjustments.............................................................................................................2

4.2.1 Paper Gap Adjustment.............................................................................................................. 2

4.2.2 Adjustment using Adjustment Program.................................................................................. 4

4.2.2.1 Overview of Adjustment Program ................................................................................ 4

4.2.2.2 Ink Charge Operation................................................................................................... 5

4.2.2.3 VH Setting .................................................................................................................... 7

4.2.2.4 ead Angular Adjustment............................................................................................... 9

4.2.2.5 Bi-D Alignment Adjustment .........................................................................................11

Epson Stylus 600 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SERVICE MANUAL

Printable Area

Printer Mechanism

C200 MAIN Board