Epson cLX-300+II RTP, LX-1170II Service Manual

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EPSON LX-300+II

LX-300+II RTP LX-1170II

9-pin Serial Impact Dot Matrix Printer

410687104

SERVICE MANUAL

LX-300+II

LX-1170II

LX-300+II

RTP

Page 2

Notice

mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

 All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would

greatly appreciate being informed of them.

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

 All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would

greatly appreciate being informed of them.

 The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences

thereof.

EPSON

is a registered trademark of Seiko Epson Corporation in the U.S. and other countries.

General Notice:Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respec-

tive owners. EPSON disclaims any and all rights in those marks.

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PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.

DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing

procedures preceded by DANGER Headings.

WARNING Signals a precaution which, if ignored, could result in damage to equipment.

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

DANGER

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

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

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

4. WHEN DISASSEMBLING OR ASSEMBLING A PRODUCT, MAKE SURE TO WEAR GLOVES TO AVOID INJURIES FROM METAL PARTS WITH SHARP EDGES.

5. WHEN USING COMPRESSED AIR PRODUCTS, SUCH AS AIR DUSTER, FOR CLEANING DURING REPAIR AND MAINTENANCE, THE USE OF SUCH PRODUCTS CONTAINING FLAMMABLE GAS IS PROHIBITED.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

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

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

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

5. DO NOT REPLACE IMPERFECTLY FUNCTIONING COMPONENTS WITH COMPONENTS WHICH ARE NOT MANUFACTURED BY EPSON. IF SECOND SOURCE IC OR OTHER COMPONENTS WHICH HAVE NOT BEEN APPROVED ARE USED, THEY COULD CAUSE DAMAGE TO THE EPSON PRODUCT, OR COULD VOID THE WARRANTY OFFERED BY EPSON.

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About This Manual

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the printer. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page.

Manual Configuration

This manual consists of six chapters and Appendix.

CHAPTER 1.PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2.OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3.TROUBLESHOOTING

Describes the step-by-step procedures for the troubleshooting.

CHAPTER 4.DISASSEMBLY / ASSEMBLY

Describes the step-by-step procedures for disassembling and assembling the product.

CHAPTER 5.ADJUSTMENT

Provides Epson-approved methods for adjustment.

CHAPTER 6.MAINTENANCE

Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product.

APPENDIXProvides the following additional information for reference:

• Connector pin assignments

• Electric circuit boards components layout

• Electrical circuit boards schematics

• Exploded diagram & Parts List

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages.

Indicates an operating or maintenance procedure, practice or condition that is necessary to keep the product’s quality.

Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment.

May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.

A D J U S T M E N T

R E Q U I R E D

C A U T I O N

C H E C K

P O I N T

W A R N I N G

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Revision Status

Revision Issued Date Description

A May 11, 2006 First Release

B Auguest 4, 2006

Revision:

• page -10, 13, 106 Input buffer: 8Kbytes-> 64Kbytes

• page -10 Total print volume-> Mean print volume between failure (MVBF)(MTBF 25% duty cycle)

• page -35 Reply EEPROM data in the specific address request for LX-300+II is added

• page -35 Reply EEPROM data in the specific address request for LX-1170II is added

• page -37 Total thickness (Maximum): (0.015) -> (0.0154)

• page -38 Total thickness (Maximum): (0.015) -> (0.0154)

• page -87-93 Descriptions on adjustment are added.

• page -106 3BH: TEAR OFF/BIN Function -> TEAR OFF function

• page -107 3CH: Font selection -> Font function

• page -107 75H-7BH is added.

• page -107 7CH is added.

• page -107 7DH is added.

• page -107 7EH is added.

• page -107 7FH is added.

C May 25, 2007

• Page -63 Resistance values of the CR motor and PF motor are corrected.

D March 19, 2010 CHAPTER 7 LX-300+II RTP is added.

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CONTENTS

Chapter 1 PRODUCT DESCRIPTION

1.1 FEATURES ......................................................................................................... 9

1.2 SPECIFICATIONS .......................................................................................... 10

1.2.1 Printing Specification ................................................................................ 10

1.2.2 Paper Feeding ............................................................................................ 12

1.2.3 Electrical Specification .............................................................................. 13

1.2.4 Environmental Condition ........................................................................... 13

1.2.5 Reliability .................................................................................................. 14

1.2.6 Ribbon Cartridge ....................................................................................... 14

1.2.7 Safety Approvals ....................................................................................... 14

1.2.8 CE Marking ............................................................................................... 14

1.2.9 Recommended Printable Area ................................................................... 15

1.3 Interface Specifications .................................................................................... 18

1.3.1 Parallel Interface (Forward Channel) ........................................................ 18

1.3.2 Parallel Interface (Reverse Channel) ......................................................... 20

1.3.3 Serial Interface ........................................................................................... 21

1.3.4 USB interface ............................................................................................. 22

1.3.5 Interface Selection ..................................................................................... 23

1.3.6 Prevention of Hosts from Data Transfer Time-out .................................... 23

1.3.7 IEEE1284.4 protocol ................................................................................. 23

1.4 Operation ........................................................................................................... 24

1.4.1 Control Panel ............................................................................................. 24

1.4.2 Functions .................................................................................................... 26

1.4.3 Errors ......................................................................................................... 28

1.5 Control codes .................................................................................................... 29

1.5.1 ESC/P2 ....................................................................................................... 29

1.5.2 IBM 2380/2381 Plus Emulation ................................................................ 30

1.5.3 Bi-Directional Commands ......................................................................... 31

1.6 Initialization ...................................................................................................... 35

1.7 Paper Specifications ......................................................................................... 36

1.8 Physical Specifications ..................................................................................... 39

1.8.1 Physical Specifications for LX-300+II ...................................................... 39

1.8.2 Physical Specifications for LX-1170II ...................................................... 40

1.9 Accessories ........................................................................................................ 41

Chapter 2 Operating Principles

2.1 Overview ............................................................................................................ 43

2.2 Printer Mechanism ........................................................................................... 44

2.2.1 Printhead .................................................................................................... 45

2.2.2 Carriage Mechanism .................................................................................. 46

2.2.3 Ribbon Mechanism .................................................................................... 48

2.2.4 Platen Gap Adjustment Mechanism .......................................................... 50

2.2.5 Paper Feed Mechanism .............................................................................. 51

2.2.6 Release Mechanism ................................................................................... 53

2.2.7 Other Special Functions ............................................................................. 53

2.3 Electrical Circuit Operating Principles .......................................................... 54

2.3.1 MAIN Board Electric Circuit .................................................................... 54

2.3.2 C294PSB / C294PSE Board ...................................................................... 55

Chapter 3 Troubleshooting

3.1 Overview ............................................................................................................ 57

3.2 Troubleshooting ................................................................................................ 58

3.2.1 Initialization Check .................................................................................... 58

3.2.2 Check Performance By Self-Check Function ............................................ 58

3.2.3 Identify Problems From Symptoms ........................................................... 59

3.2.4 Unit and Parts Check ................................................................................. 63

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Chapter 4 Disassembly and Assembly

4.1 Overview ............................................................................................................ 66

4.1.1 Precautions ................................................................................................. 66

4.1.2 Tools .......................................................................................................... 66

4.1.3 Service Checks After Repair ..................................................................... 68

4.2 Disassembly and Assembly .............................................................................. 69

4.2.1 Printhead Unit Removal ............................................................................ 70

4.2.2 Upper Housing Unit Removal ................................................................... 71

4.2.3 Printer Mechanism Removal ..................................................................... 72

4.2.4 Panel Board Assembly Removal ............................................................... 73

4.2.5 Main Board Assembly Removal ................................................................ 74

4.2.6 P/S Board Assembly Removal ................................................................... 75

4.2.7 Printer Mechanism Disassembly ............................................................... 76

Chapter 5 Adjustment

5.1 Adjustment Tool ............................................................................................... 86

5.1.1 System Requirement .................................................................................. 86

5.1.2 Running the Program ................................................................................. 86

5.2 Adjustments ...................................................................................................... 89

5.2.1 Platen Gap Adjustment .............................................................................. 89

5.2.2 Bi-D Adjustment ........................................................................................ 90

5.2.3 Top Margin Adjustment ............................................................................ 90

5.2.4 Bottom Margin Adjustment ....................................................................... 91

Chapter 6 Maintenance

6.1 Maintenance ...................................................................................................... 93

6.1.1 Cleaning ..................................................................................................... 93

6.1.2 Lubrication ................................................................................................. 93

Chapter 7 LX-300+II RTP

7.1 DISASSEMBLY AND ASSEMBLY ............................................................... 98

7.1.1 Printhead Unit Removal ............................................................................ 99

7.1.2 Upper Housing Unit Removal ................................................................. 100

7.1.3 Printer Mechanism Removal ................................................................... 101

7.1.4 Panel Board Assembly Removal ............................................................. 102

7.1.5 Main Board Assembly Removal .............................................................. 103

7.1.6 P/S Board Assembly Removal ................................................................ 104

7.1.7 Printer Mechanism Disassembly ............................................................. 104

7.2 Adjustment ...................................................................................................... 105

7.3 Parts List ......................................................................................................... 106

7.4 Exploded Diagrams ........................................................................................ 108

Chapter Appendix

A.1 Connector Summary ..................................................................................... 111

A.1.1 Major Component Unit ........................................................................... 111

A.1.2 Pin Assignments ..................................................................................... 111

A.2 EEPROM Address Map ................................................................................ 114

A.3 Parts List ........................................................................................................ 117

A.4 Exploded Diagrams ....................................................................................... 122

A.5 Electric Circuit Schematics .......................................................................... 126

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CHAPTER

PRODUCT DESCRIPTION

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION FEATURES 9

1.1 FEATURES

EPSON LX-300+II/300+II RTP/1170II is a 9 pin serial impact dot matrix printer. The main difference between LX-300+II and LX-1170II is the width: 80 columns for LX-300+II and 136 columns for LX-1170II. The major features are as follows:

 Printing speed: High speed draft 300 cps at 10 cpi

High speed draft 337 cps at 12cpi (LX-300+II only) Draft 225 cps at 10 cpi NLQ 56 cps at 10 cpi

 Feeding method: Friction feed (rear)

Push tractor feed (rear) Push and Pull tractor feed (rear) Pull tractor feed (rear, bottom)

 Feeder: Rear push tractor, CSF single-bin (Option),

Pull tractor (Option) and Roll paper holder (Option)

 Paper/ Media: Single sheet, Continuous paper, Multi part paper,

Envelope, Label and Roll paper

 Fonts: 2NLQ and 1 Draft Bitmap typefaces

8 Barcode fonts

 Character tables: Standard version 13 tables

NLSP version 38 tables

 Input buffer: 64 Kbytes

 Acoustic noise: 49 dB(A) (ISO 7779 pattern)

 Reliability: Mean print volume between failure (MVBF)(MTBF 25%

duty cycle) 12 million lines (except printhead) MTBF 6000 POH (25% Duty) Printhead life 400 million strokes/ wire Ribbon life 3 million characters For details, see “Reliability” (p.14)

 Interface: Bi-directional parallel interface

(IEEE-1284 nibble mode supported) Serial I/F USB (ver 1.1) I/F

 Control code: LX-300+II ESC/P and IBM 2380 Plus emulation

LX-1170II ESC/P and IBM 2381 Plus emulation

 Copy capability: 1 original + 4 copies

 Control panel functions: Font, Pause, Tear off, LF/FF, Load/ Eject,

Micro Adjust, Self test, Data dump and the default settings

Figure 1-1. EPSON LX-300+II/300+II RTP/1170II Printer Parts

Paper supports

Paper guide

Paper release lever

Knob

Control panel

Printer cover

Paper guide cover

Ribbon cartridge

Paper thickness

lever

Paper tension unit

Power switch

Paper cord

Tractor

Parallel interface

USB I/F

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 10

1.2 SPECIFICATIONS

1.2.1 Printing Specification

 Print method: Impact dot matrix

 Number of pins: 9 pins

 Print pin arrangement: 9 x 1

 Print pin diameter: 0.29 mm (0.0114 inch)

 Color (Option): Black,

Magenta, Cyan, Yellow (LX-300+II only)

 Print direction: Bi-direction with logic seeking

 Print speed and printable columns:

Note1: When the power supply voltage drops to the lower limit, the printer stops printing

and then starts printing the rest on the line more slowly than before.

Note2: When the head temperature rises to the upper limit, the printer stops printing. When

the head temperature falls to the normal level, the printer starts printing again.

 Resolution:

 Control code: LX-300+II ESC/P and IBM 2380 Plus emulation

LX-1170II ESC/P and IBM 2381 Plus emulation (Refer to 1.5 “Control codes”)

Table 1-1. Print Speed and Printable Columns

Printing mode

Character pitch

(cpi)

Printable columns

Printing speed

9:15(cps)

LX-300+II LX-1170II

High speed draft

10 80 136 300

12 96 163 337

15 120 204 337

High speed draft condensed

17 137 233 321

20 160 272 300

Draft 10 80 136 225

12 96 163 270

15 120 204 225

Draft condensed 17 137 233 191

20 160 272 225

Draft emphasized 10 80 136 112

NLQ 10 80 136 56

12 96 163 67

15 120 204 56

17 137 233 47

20 160 272 56

Table 1-2. Resolution

Printing mode

Horizontal density

(dpi)

Vertical density

(dpi)

Adjacent dot print

High speed draft 90 72 No

Draft 120 72 No

Draft condensed 240 72 No

Draft emphasized 120 72 Yes

NLQ 240 144 No

Bit image 60, 72, 80, 90 or 120 72 Yes

120 or 240 72 No

Table 1-1. Print Speed and Printable Columns (continued)

Printing mode

Character pitch

(cpi)

Printable columns

Printing speed

9:15(cps)

LX-300+II LX-1170II

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 11



Character tables:



Standard version (13 character table) Italic table PC437 (US, Standard Europe) PC850 (Multilingual) PC860 (Portuguese) PC863 (Canadian-French) PC865 (Nordic) PC861 (Icelandic) BRASCII Abicomp Roman 8 ISO Latin 1 PC858 ISO 8859-15



NLSP version (38 character tables) Italic table PC437 (US, Standard Europe) PC850 (Multilingual) PC437 Greek PC853 (Turkish) PC437 Slovenia PC852 (East Europe) PC855 (Cyrillic) PC866 (Russian) PC857 (Turkish) PC869 (Greek) MAZOWIA (Poland) Code MJK (CSFR) ISO 8859-7 (Latin / Greek) ISO Latin 1T (Turkish) Bulgaria (Bulgarian) PC774 (LST 1283:1993) Estonia (Estonia) ISO 8859-2 PC 866 LAT. (Latvian) PC866 UKR (Ukrania) PC860 (Portuguese) PC861 (Icelandic) PC865 (Nordic) PC APTEC (Arabic) PC708 (Arabic) PC720 (Arabic) PCAR864 (Arabic) PC863 (Canadian-French) Abicomp BRASCII Roman 8 ISO Latin 1 Hebrew 7

Hebrew 8

PC862 (Hebrew)

PC858 ISO 8859-15 PC771 (Lithuania) PC1250 PC MC PC1251

NOTE:*1: This item is not displayed in a default setting mode.

Only for customized models.

 International character sets: 13 countries

U.S.A France Germany U.K. Denmark 1 Sweden Italy Spain 1 Japan Norway Denmark 2 Spain 2 Latin America

NOTE:The international and legal characters are the following 12 codes;

23H, 24H, 40H, 5BH, 5CH, 5DH, 5EH, 60H, 7BH, 7CH, 7DH, 7EH.

 Typeface



Bit map fonts: EPSON Draft 10cpi, 12cpi, 15cpi EPSON Roman 10cpi, 12cpi, 15cpi, Proportional EPSON Sans serif 10cpi, 12cpi, 15cpi, Proportional EPSON OCR-B 10cpi

NOTE: *1: Only for customized models.

 Bar codes

EAN-13 EAN-8 Interleaved 2 of 5 UPC-A UPC-E Code 39 Code 128 POSTNET Coda bar (NW-7)

Industrial 2 of 5

Matrix 2 of 5

NOTE: *1: Only for customized models.

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 12



Character tables and typefaces:

Note: ESC R command is effective on all the character tables.

*1: These items are not displayed in the default setting mode. Only for customized

models.

1.2.2 Paper Feeding

 Feeding method: Friction feed (rear)

Push tractor feed (rear) Push and Pull tractor feed (rear) Pull tractor feed (rear, bottom)

 Feeder: Rear push tractor, CSF single-bin (Option),

Pull tractor (Option) and Roll paper holder (Option)

 Paper path: Manual insertion Rear in, top out

CSF Rear in, top out Push Tractor Rear in, top out Pull Tractor Rear or bottom in, top out

 Line spacing: 4.23 mm (1/6 inch) or programmable in increments of

0.118 mm (1/216 inch)

 Feed speed: 4.23 mm (1/6 inch feed)

LX-300+II 88 msec LX-1170II 63 msec

Continuous feed 0.76 MPS (m/sec)

[3.0 IPS (inches/sec)]

 Input Data Buffer: 64Kbytes

 Release lever:

The release lever must be set according to the following table;

Table 1-3. Character Tables and Typefaces

Character table Bitmap font

Standard Version

Italic table PC 437 (US, Standard Europe)

EPSON Draft EPSON Roman EPSON Sans serif EPSON OCR-B

PC 850 (Multilingual) PC 860 (Portuguese) PC 863(Canadian-French) PC 865 (Nordic) PC 861 (Icelandic)

BRASCII Abicomp Roman 8 ISO Latin 1 PC 858 ISO 8859-15

EPSON Draft EPSON Roman EPSON Sans serif

NLSP version

Italic table PC 437(US, Standard Europe)

EPSON Draft EPSON Roman EPSON Sans serif EPSON OCR-B

PC 860(Portuguese) PC 865(Nordic) BRASCIl Roman 8 PC437 (Greek) PC 855 (Cyrillic) PC 857 (Turkish)

PC 869 (Greek) Code MJK (CSFR) lSO Latin 1T (Turkish) PC774 (LST 1283: 1993) 1SO 8859-2 PC 866 UKR (Ukrania)

PC 708 (Arabic) PCAR864 (Arabic)

Hebrew 8*

PC 858 PC 771 (Lithuania) PC 437 (Slovenia) PC 1250

PC 850 (Multilingual) PC 861 (Icelandic) PC863 (Canadian-French) Abicomp lSOLatin1 PC 853 (Turkish) PC 852 (East Europe)

PC 866 (Russian) MAZOWIA (Poland) lSO 8859-7 (Latin/Greek) Bulgaria (Bulgarian) Estonia (Estonia) PC 866 LAT. (Latvian) PC APTEC (Arabic)

PC 720 (Arabic) Hebrew7*

PC862 (Hebrew)*

ISO 8859-15 PC MC PC 1251

EPSON Draft EPSON Roman EPSON Sans serif

Table 1-4. Release Lever

Lever position Paper path/ Feeder Paper/ Media

Friction

Manual insertion (rear) Cut sheet (Single sheet and Multi part)

Envelop

CSF single-bin Cut sheet (Single sheet)

Roll paper holder feed (rear) Roll paper

Tractor Push tractor feed (rear) Continuous paper (Single sheet and Multi part)

Push and Pull tractor feed (rear) Continuous paper (Single sheet and Multi part)

Pull tractor feed (rear) Continuous paper (Single sheet and Multi part)

Pull tractor feed (bottom) Continuous paper (Single sheet and Multi part)

Labels

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 13



Paper thickness lever: The paper thickness lever must be set at the proper position as shown below.

1.2.3 Electrical Specification

1.2.4 Environmental Condition

 Temperature: 5 to 35 °C (operating*

)

15 to 25

°C (operating*1,*

)

-30 to 60

°C (non-operating)

 Humidity: 10 to 80% RH (operating*

)

30 to 60% RH (operating

*1,*

)

0 to 85% RH (non-operating

)

 Resistance to shock: 1 G, within 1 ms (operating)

2 G, within 2 ms (non-operating

)

 Resistance to vibration: 0.25 G, 10 to 55 Hz (operating)

0.50 G, 10 to 55 Hz (non-operating

)

*1: without condensation *2: during printing on reclaimed paper, multi part paper, envelop, label or roll paper. *3: without shipment container

Table 1-5. Paper Thickness Lever

LX-300+II LX-1170II

Lever

position

Paper thickness

(inch)

Paper

thickness

(mm)

Paper thickness

(inch)

Paper

thickness

(mm)

Min. Max. Min. Max.

—1 — — — — — —

0 (0.0024) (0.0071)

over 0.06 up to 0.18

(0.0024) (0.0071)

over 0.06 up to 0.18

1 (0.0071) (0.0102)

over 0.18 up to 0.26

— — —

2 (0.0102) (0.0130)

over 0.26 up to 0.33

(0.0071) (0.0102)

over 0.18 up to 0.26

3 (0.0130) (0.0154)

over 0.33 up to 0.39

— — —

4 (0.0154) (0.0205)

over 0.39 up to 0.52

(0.0102) (0.0130)

over 0.26 up to 0.33

5 — — — (0.0130) (0.0154)

over 0.33 up to 0.39

6 — — — (0.0154) (0.0205)

over 0.39 up to 0.52

Table 1-6. Electrical Specification

120V version 230V version

Rated voltage AC 120 V AC 220 to 240 V

Input voltage range AC 99 to 132 V AC 198 to 264 V

Rated frequency range 50 to 60 Hz

Input frequency range 49.5 to 60.5 Hz

Rated current 0.6 A (max. 1.4 A) 0.3 A (max. 0.7 A)

Power consumption

Approx. 23 W (ISO/IEC 10561 Letter pattern)

Energy Star Compliant

Dielectric strength

AC 1000 Vrms. 1 min. or

AC 1200 Vrms. 1 sec.

(between AC line and chassis)

AC 1500 Vrms. 1 min.

(between AC line and chassis)

Page 14

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 14

1.2.5 Reliability

 Mean print volume between failure (MVBF)(MTBF 25% duty cycle):

12 million lines (except printhead)

 MTBF: 6000 POH(25% Duty)

 Printhead life: Black 400 million strokes / wire

Color 100 million strokes / wire (LX-300+II only)

1.2.6 Ribbon Cartridge

*1 LX-300+II only

*2 Draft 10 cpi, 14 dots/character

1.2.7 Safety Approvals

 LX-300+II

 LX-1170II

1.2.8 CE Marking

230 V & UPS version:



Low voltage directive 73/23/EEC: EN60950



EMC Directive 89/336/EEC: EN55022 class B

EN61000-3-2 EN61000-3-3

EN55024

Table 1-7. Ribbon Cartridge

Black Cartridge Color Cartridge*

Type Fabric

Color Black Black, Magenta, Cyan and Yellow

Ribbon life*

3 million characters

Black : 1 million characters Magenta : 0.7 million characters Cyan : 0.7 million characters Yellow : 0.5 million characters

Table 1-8. Safety Approvals (LX-300+II)

Type Standards

120V version

Safety standards

UL60950 CSA C 22.2 No.60950

EMI

FCC part15 subpart B class B CAN/CSA-CEI/IEC CISPR22 Class B

230V version

Safety standards EN60950

EMC

EN55022 class B EN61000-3-2 EN61000-3-3 EN55024 AS/NZS CISPR22 class B

Table 1-9. Safety Approvals (LX-1170II)

Type Standards

230V version

Safety standards EN60950

EMC

EN55022 class B EN61000-3-2 EN61000-3-3 EN55024

Page 15

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 15

1.2.9 Recommended Printable Area

NOTE: For best results, print within the recommended printable area. The

printer may not print outside this area.

 Cut sheets

Figure 1-2. Recommended Printable Area for Cut Sheet

Recommended Printable Area

Table 1-10. Recommended Printable Area for Cut Sheet

Single Sheet Multi Part

PW (Width) Refer to 1.7 “Paper Specifications” Refer to 1.7 “Paper Specifications”

PL (Length) Refer to 1.7 “Paper Specifications” Refer to 1.7 “Paper Specifications”

LM (Left Margin) LX-300+II:

3 mm or more (PW<=229 mm) 24mm or more(PW=257 mm)

LX-1170II:

3 mm or more (PW<=364 mm) 29mm or more(PW=420 mm)

LX-300+II:

3 mm or more (PW<=229 mm) 24mm or more(PW=257 mm)

LX-1170II:

3 mm or more (PW<=364 mm) 29mm or more(PW=420 mm)

RM (Right Margin) LX-300+II:

3 mm or more (PW<=229 mm) 24mm or more(PW=257 mm)

LX-1170II:

3 mm or more (PW<=364 mm) 29mm or more(PW=420 mm)

LX-300+II:

3 mm or more (PW<=229 mm) 24mm or more(PW=257 mm)

LX-1170II:

3 mm or more (PW<=364 mm) 29mm or more(PW=420 mm)

TM (Top Margin) 4.2 mm or more 4.2 mm or more

BM (Bottom Margin) 4.2 mm or more 4.2 mm or more

NOTE: The maximum horizontal recommended printable area is 203.2 mm for

LX-300+II/ 345.44 for LX-1170II.

Page 16

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 16



Envelop

Figure 1-3. Recommended Printable Area for Envelop



Continuous paper

Figure 1-4. Recommended Printable Area for Continuous Paper

Table 1-11. Recommended Printable Area for Envelop

Envelope

PW (Width) Refer to 1.7 “Paper Specifications”

PL (Length) Refer to 1.7 “Paper Specifications”

LM (Left Margin) 3 mm or more

RM (Right Margin) 3 mm or more

TM (Top Margin) 4.2 mm or more

BM (Bottom Margin)

4.2 mm or more

NOTE: The maximum horizontal recommended printable area is

203.2mm.

Table 1-12. Recommended Printable Area for Continuous Paper

Continuous Paper

LX-300+II LX-1170II

PW (Width) Refer to 1.7 “Paper Specifications”

PL (Length) Refer to 1.7 “Paper Specifications”

LM (Left Margin) 13 mm or more (PW<=254 mm)

24mm or more(PW=254 mm)

13 mm or more (PW<=377.8mm) 18 mm or more(PW=406.4 mm)

RM (Right Margin) 13 mm or more (PW<=254 mm)

24mm or more(PW=254 mm)

13 mm or more (PW<=377.8mm) 18 mm or more(PW=406.4 mm)

TM (Top Margin) 4.2 mm or more

BM (Bottom Margin)

4.2 mm or more

NOTE: The maximum horizontal recommended printable area is 203.2mm for

LX-300+II/345.44 for LX-1170II.

Page 17

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION SPECIFICATIONS 17



Roll paper

Figure 1-5. Recommended Printable Area for Roll Paper

Table 1-13. Recommended Printable Area for Roll Paper

Continuous Paper

PW (Width) Refer to 1.7 “Paper Specifications”

PL (Length) Refer to 1.7 “Paper Specifications”

LM (Left Margin) 3 mm or more

RM (Right Margin) 3 mm or more

TM (Top Margin) 4.2 mm or more

BM (Bottom Margin) 4.2 mm or more

NOTE: The maximum horizontal recommended printable area is 203.2mm

for LX-1170II.

Page 18

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Interface Specifications 18

1.3 Interface Specifications

LX-300+II/LX-1170II is provided with bi-directional 8 bit parallel interface and serial interface and USB interface. Optional interface board is not supported on this model.

1.3.1 Parallel Interface (Forward Channel)

 Transmission mode: 8 bit parallel

IEEE-1284 compatibility mode

 Adaptable connector: 57-30360 (Amphenol) or equivalent

 Synchronization: -STROBE pulse

 Handshaking: BUSY and -ACKLG signals

 Signal level: TTL compatible

(IEEE-1284 level 1 device)

Figure 1-6. Data Transmitting Timing

Table 1-14. Parameter

Parameter Minimum Maximum Condition

*-- 5.5V

VOL* -0.5V --

IOH* -- 0.32mA VOH=2.4V

IOL* -- 12mA VOL=2.4V

-- 50pF

-- 2.0V

0.8V --

-- 0.32mA VIH=2.0V

-- 12mA VIL=0.8V

-- 50pF

NOTE: * Logic-H signal is 2.0V or lower when the printer is off and the signal

is 3.0V or higher when the printer is on. The receiver has impedance which is equivalent to 7.5 k

Ω.

Table 1-15. Maximum & Minimum Timings for Data Transmission

Parameter Minimum Maximum

setup

500 nsec --

hold

500 nsec --

stb

500 nsec --

ready

0 --

busy

-- 500 nsec

-- --

ack

500 nsec 10 us

nbusy

0 --

0--

tout

* -- 120 nsec

tin

** -- 200 nsec

NOTE:

* Rise and fall time of output signals. ** Rise and fall time of input signals.

Page 19

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Interface Specifications 19



BUSY signal is active (HIGH level) under the conditions below:



In the process of receiving data



In the condition of being input buffer full



In the condition of being -INIT signal active (low level)



During hardware initialization



In the condition of being -ERROR or PE signal is active (low level, high level, respectively)



In the self test mode



In the adjustment mode



In the default-setting mode

 -ERROR signal is active (low level) under the conditions below:



In the condition of the printer hardware error (fatal error)



In the condition of a paper-out error



In the condition of a release lever error

 PE signal is active (high level) under the condition below:



In the condition of a paper-out error

NOTE: In/Out shows the direction of signal flow as viewed from the printer.

Table 1-16. Connector Pin Assignment and Signals (Forward Channel)

No.

Signal Name

Return

GND Pin

In/Out Functional Description

1 -STROBE 19 In

Strobe pulse. Input data is latched at falling edge of the signal.

2 DATA1 20 In Parallel input data to the printer. bit 0: LSB

3 DATA2 21 In bit 1

4 DATA3 22 In bit 2

5 DATA4 23 In bit 3

6 DATA5 24 In bit 4

7 DATA6 25 In bit 5

8 DATA7 26 In bit 6

9 DATA8 27 In bit 7: MSB

10 -ACKNLG 28 Out

This signal (negative pulse) indicates that the printer has received data and is ready to accept next one.

11 BUSY 29 Out

This signal’s high level means that the printer is not ready to accept data.

12 PE 28 Out

This signal’s high level means that the printer is in a state of 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 This signal’s negative pulse initializes printer.

32 -ERROR 29 Out

This signal’s low level means the printer is in a state of error.

36 -SLIN 30 In Not used. 18 Logic H -- Out This line is pulled up to +5V through 3.9 kΩ resister. 35 +5V -- Out This line is pulled up tp +5V through 1.0 kΩ resister.

17 Chassis -- -- Chassis GND.

16, 33,

19-30

GND -- -- Signal GND.

15, 34 NC -- -- Not connected.

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Interface Specifications 20

1.3.2 Parallel Interface (Reverse Channel)

 Transmission mode: IEEE-1284 nibble mode

 Adaptable connector: See 1.3.1 “Parallel Interface (Forward Channel)”

 Synchronization: Refer to the IEEE-1284 specification

 Handshaking: Refer to the IEEE-1284 specification

 Signal level: IEEE-1284 level 1 device

See 1.3.1 “Parallel Interface (Forward Channel)”

 Data transmission timing: Refer to the IEEE-1284 specification

 Extensibility request: The printer responds to the extensibility request

affirmatively, when the request is 00H or 004H, which means;

00H: Request for nibble mode of reverse channel transfer 04H: Request device ID in nibble mode of reverse channel transfer

 Device ID: The printer sends following device ID string when it is requested.



When IEEE1284.4 is enabled;



When IEEE1284.4 is disabled;

NOTE: In/Out shows the direction of signal flow as viewed from the printer.

[00H][4EH] MFG: EPSON; CMD: ESCP9,PRPII9,BDC,D4; MDL: LX-300+II; CLS: PRINTER; DES: EPSON[SP]LX-300+II;

[00H][4EH] MFG: EPSON; CMD: ESCP9,PRPII9,BDC,D4; MDL: LX-1170II; CLS: PRINTER; DES: EPSON[SP]LX-1170II;

LX-300+II LX-1170II

[00H][4BH] MFG: EPSON; CMD: ESCP9,PRPII9,BDC; MDL: LX-300+II; CLS: PRINTER; DES: EPSON[SP]LX-300+II;

[00H][4BH] MFG: EPSON; CMD: ESCP9,PRPII9,BDC; MDL: LX-1170II; CLS: PRINTER; DES: EPSON[SP]LX-1170II;

LX-300+II LX-1170II

Table 1-17. Connector Pin Assignment and Signals (Reverse Channel)

Pin No.

Signal Name

Return

GND Pin

In/Out Functional Description

1 HostClk 19 In Host clock signal.

2 DATA1 20 In Parallel input data to the printer. bit 0: LSB

3 DATA2 21 In bit 1

4 DATA3 22 In bit 2

5 DATA4 23 In bit 3

6 DATA5 24 In bit 4

7 DATA6 25 In bit 5

8 DATA7 26 In bit 6

9 DATA8 27 In bit 7: MSB

10 PtrClk 28 Out Printer clock signal.

PtrBusy/

DataBit-3,7

29 Out

Printer busy signal and reverse channel transfer data bit 3 or 7.

AckDataReq/

DataBit-2,6

28 Out

Acknowledge data request signal and reverse channel transfer data bit 2 or 6.

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.

-DataAvail/ DataBit-0,4

29 Out

Data available signal and reverse channel transfer data bit 0 or 4.

36 1284-Active 30 In 1284 active signal. 18 Logic-H -- Out This line is pulled up to +5V through 3.9 kΩ resister. 35 +5V -- Out This line is pulled up tp +5V through 1.0 kΩ resister.

17 Chassis -- -- Chassis GND.

16, 33,

19-30

GND -- --

Signal GND.

15, 34 NC -- -- Not connected.

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Interface Specifications 21

1.3.3 Serial Interface

 Synchronization: Asynchronous

 Signal level: EIA-232D

MARK (logical 1): -3V to -25V SPACE (logical 0): +3V to +25V

 Word length: Start bit: 1 bit

Data bit: 8 bits, 7 bits

Parity bit: Odd, Even, Non, Ignore

Stop bit: 1 bit or more

 Baud rate: 300, 600, 1200, 2400, 4800, 9600 or 19200 bps

 Handshaking: DTR signal and XON/XOFF

DTR=MAEK, XOFF:indicates that the printer cannot

receive data.

DTR=SPACE, XON: indicates that the printer is ready

to receive data.

NOTE: The DTR signal is MARK and XOFF code (DC3, 13H) is transmitted

when the rest of the input buffer becomes 256 bytes. The DTR signal is SPACE and XON code (DC1, 11H) is transmitted when the rest of the input buffer is regained 256 byte.

 Error handling: Parity error is only detected. Overrun error and framing

error are ignored.

 Connector: 25 pin subminiature D-shell connector (female)

NOTE: In/Out shows the direction of signal flow as viewed from the printer.

Table 1-18. Connector Pin Assignment and Signals

Pin No.

Signal Name In/Out Functional Description

2 TXD Out Transmit data.

20 DTR Out Indicates that the printer is ready to receive data or not.

11 REV Out Connected directly to the DTR signal.

4 RTS Out

Request to send. Always SPACE level when the printer is powered on. Pulled up to +12V via 4.7KΩ resistor.

3 RXD In Receive data.

7 Signal GND -- Signal GND

1 Chassis GND -- Chassis GND

other NC -- Not used. Not connected.

Page 22

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Interface Specifications 22

1.3.4 USB interface

 Standard : based on

•Universal Serial Bus Specifications Revision 1.1

•Universal Serial Bus Device Class Definition for Printing Devices Version 1.1

 Bit rate : 12 Mbps (Full Speed Device)

 Data encoding : NRZI

 Adaptable connector : USB Series B

 Recommended cable length : 2 meters

Figure 1-7. USB Interface Connector Pin Assignment



Respond to an BULK OUT transaction with NAK handshake and other transaction with ACK under either of the following conditions:

 In the condition of the paper-out error

 In the condition of the release lever error

 Respond to an BULK OUT transaction with NAK and BULK IN transaction with

NAK under any of the following conditions:

 In the condition of being input buffer full

 During hardware initialization

 In the self test mode

 In the adjustment mode

 In the default-setting mode

 Respond to an BULK OUT transaction with STALL and BULK IN transaction

with STALL under the following condition:

 In the condition of the printer hardware error (fatal error)

 USB Device Requests for USB Printer as shown below

 GET PORT STATUS

Reply specification for GET PORT STATUS as shown below:

 GET DEVICE ID

Device ID : The printer sends following device ID string when it is requested.

 SOFT RESET

This USB Device Request is used when Host initializes printer's input buffer.

Table 1-19. Connector Pin Assignment and Signals

Pin No. Signal name In/Out Function description

1 VCC – Cable power. Maximum power consumption is 100mA

2 -Data Bi-directional Data

3 +Data Bi-directional Data, pull up to +3.3V via 1.5K ohm resistor

4 Ground – Cable ground

Table 1-20. GET PORT STATUS

Bit Field Description

7, 6 Reserved Reserved

5 Paper Empty 0: Paper Not Empty / 1: Paper Empty

4 Select 0: Not Select / 1: Select

3 Not Error 0: Error / 1: No Error

2, 1, 0 Reserved Reserved

Table 1-21. GET DEVICE ID

LX-300+II LX-1170II

When IEEE1284.4

is enabled,

[00H][4EH] MFG:EPSON; CMD:ESCP9,PRPII9,BDC,D4; MDL:LX-300+; CLS:PRINTER; DES:EPSON[SP]LX-300+;

[00H][4EH] MFG:EPSON; CMD:ESCP9,PRPII9,BDC,D4; MDL:LX-1170; CLS:PRINTER; DES:EPSON[SP]LX-1170;

When IEEE1284.4

is disabled,

[00H][4BH] MFG:EPSON; CMD:ESCP9,PRPII9,BDC; MDL:LX-300+; CLS:PRINTER; DES:EPSON[SP]LX-300+;

[00H][4BH] MFG:EPSON; CMD:ESCP9,PRPII9,BDC; MDL:LX-1170; CLS:PRINTER; DES:EPSON[SP]LX-1170;

Page 23

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Interface Specifications 23

1.3.5 Interface Selection

The printer has 3 interfaces; the parallel interface, the serial interface and the USB interface. These interfaces are selected manually by Default Setting or selected automatically.

 Manual Selection

One of 3 interfaces can be selected by Default setting.

 Automatic Selection

The automatic interface selection is enabled by Default Setting. In this automatic interface selection mode, the printer is initialized to the idle state scanning which interface receives data when it is powered on. Then the interface that receives data first is selected. When the host stops data transfer and the printer is in stand-by state for the period of seconds specified by Default Setting, the printer is returned to the idle state. As long as the host sends data or the printer interface is busy state, printer keeps the interface selection status as it is.

 Interface State and Interface Selection

When the parallel interface is not selected, the interface gets into a busy state. When the USB interface is not selected, the interface responds to an OUT transaction with NAK handshake. When the serial interface is not selected, the interface sends XOFF and sets the DTR signal MARK. When the printer is initialized or returned to the idle state, the parallel interface get into a ready state, the USB interface become to respond to an OUT transaction with ACK handshake, the serial interface sends XON and sets the DTR SPACE. Caution that the interrupt signal such as a -INIT signal on the parallel interface and software reset on the USB interface is not effective while that interface is not selected.

1.3.6 Prevention of Hosts from Data Transfer Time-out

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

NOTE: This prevention basically operates on the parallel I/F and on the USB I/F.

NOTE: IEEE1284.4 on the parallel interface and that on the USB interface do

not require this function.

1.3.7 IEEE1284.4 protocol

The packet protocol described by IEEE1284.4 is supported on the parallel I/F and the USB I/F. Two function modes of IEEE1284.4 protocol, “Off” and “Auto”, are available and one of them is selected according to the value of Default setting. (See 1.4.2.3 “Default Setting”)

NOTE: Packet protocol option “Off” & “Auto” in Default setting is effective in

not only parallel I/F but also USB I/F.

NOTE: In the case that data is printed from printer driver of Windows-based PC,

select the packet protocol to “Auto”.

NOTE: The function mode of IEEE1284.4 protocol “Off” is not guaranteed only

on the USB I/F.

 Auto:

Communication is carried out in the conventional mode until a magic string (1284.4 synchronous commands) is received. By receiving a magic string, communication in IEEE1284.4 packet mode is started.

 Off:

Communication is carried out in the conventional mode.

NOTE: The packet protocol of IEEE1284.4 allows a device to carry on multiple

exchanges or conversations which contain data and/or control information with another device at the same time across a single pointto-point link. The protocol is not, however, a device control language. It does provide basic transport-level flow control and multiplexing services. The multiplexed logical channels are independent of each other and blocking of one has no effect on the others. The protocol operates over IEEE1284.

Page 24

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Operation 24

1.4 Operation

1.4.1 Control Panel

4 switches and 4 LEDs are on the panel as shown below.

Figure 1-8. Control Panel

1.4.1.1 Switches

 Operation in normal mode

In normal mode, pressing panel switches executes following function;

 Operation at power on

Turning the printer on while pressing panel switches executes the functions below;

*1 Only for customized models. *2 LX-300+II only.

 Operation in default setting mode

The switches are used in default setting mode as follows:

Table 1-22. Operation in Normal Mode

Switch Function

Pause

-Alternates printing with non-printing status.

-Enables Micro Adjustment function and Font selection when it is held down for 3 seconds.

Load/Eject

-Loads or ejects paper.

-Execute micro feed forward when this function is enabled.

LF/FF

-Executes line feed when it is pressed shortly.

-Executes form feed when it is held down for a few seconds.

-Executes micro feed backward when this function is enabled.

Tear Off

-Advances continuous paper to the Tear-off position.

-Select font, when this function is enabled.

: LED Off

: LED Blinks

: LED On

Micro Adjust

Tear Off

Draft

Draft Condensed

Roman

Roman Condensed

Sans serif

Sans serif Condensed

Tear Off

LF/FF

Load/Eject

Pause

Paper Out

Font

3 sec

Table 1-23. Operation at Power On

Switch Function

Load/Eject NLQ self test

LF/FF Draft self test

Tear Off Default setting

Load/Eject & LF/FF Data dump

Load/Eject & LF/FF & Pause Clear EEPROM

Tear Off & Load/Eject & LF/FF

Clear EEPROM for Diving Line count for ribbon change timing.

Load / Eject & Pause *

Color printing position adjustment

Pause Bi-d adjustment

Tear Off & Pause Copy mode *

Tear Off & LF/FF Quiet mode *

Load/Eject & Tear Off Simple default setting *

Tear Off & Load / Eject & Pause Error analyzing mode *

The others Not available

Table 1-24. Operation at Power On

Switch Function

Tear Off Selects the Menu.

LF/FF Changes the setting.

The others Not available.

Page 25

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Operation 25

1.4.1.2 Indicators

 Indication in normal mode

*1 Pause (Orange)

-It is on when the printer is paused, and it is off when the printer is not paused.

-It blinks when Micro Adjust is enabled or the printer is in the head hot status.

*2 Paper Out (Red)

-It is on when the printer is in the Paper out status, and it is off when the printer is out of this status.

*3 Font (Green)

-2 LEDs display the status of Font selection when continuous paper is out of the Tearoff position .

-Both LEDs blink when continuous paper is in the Tear-off position.

: Draft : Draft Condensed





: Roman



: Roman Condensed



: Sans serif





: Sans serif Condensed



: Tear Off

(



: LED On, : LED Off, : LED Blinks)

1.4.1.3 Buzzer

 Paper out error: Beeper sounds (...)*

 Release lever operation error: Beeper sounds (...)*

 Fatal error: Beeper sounds (-----)*

*The description (.) and (-) in the above shows how the beeper sounds. (.): Beeper sounds approx. 100 ms and interval is approx. 100 ms. (-): Beeper sounds approx. 500 ms and interval is approx. 100 ms.

Table 1-25. Indication in normal mode

LED

Pause

Paper Out

Font

Printer Status

Pause On --- ---

Paper out error On On ---

Release lever error On --- ---

Paper eject warning On Blink ---

Head hot warning Blink --- ---

Micro Adjust Blink --- ---

Tear off --- --- *3

Font selection --- --- *3

Fatal error Blink Blink Blink

Page 26

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Operation 26

1.4.2 Functions

1.4.2.1 Usual Operation

 Pause

-This switch alternates printer activity between printing and non-printing.

-Holding it down over 3 seconds when the printer is in the stand-by state, the Micro Adjust function is enabled. Pressing it again, this function is disabled.

 Load/Eject

-Pressing it loads out sheet or continuous paper when the printer is out of paper.

-Pressing it ejects out sheet to the stacker or continuous paper to the paper park.

 LF/FF

-Pressing it shortly executes line feed.

-Holding it down for a few seconds executes form feed when continuous paper is used, or ejects cut sheet to the stacker when cut sheet is used.

 Tear Off

-When continuous paper is used, pressing it moves a page to the Tear-off position. And pressing it again moves a next page to the TOF position.

 Font

-Pressing it selects one of the following fonts when Micro Adjust is enabled; Draft, Draft Condensed, Roman, Roman Condensed, Sans serif, Sans serif Condensed

 Micro Adjust

-Micro Adjust

↓ / ↑ switches is effective when the Micro Adjust function is

enabled by Pause switch.

-Pressing the Micro Adjust

↓ / ↑ switches executes micro feed backward and

forward by 0.118 mm (1/216 inch).

-The TOF adjustment is enabled in the TOF position after loading, and the Tearoff adjustment is enabled in the Tear-off position.

1.4.2.2 Operation at Power-on

*1 Only for customized models.

*2 LX-300+II only.

Table 1-26. Operation at Power-on

Function Description of Operation

Self test

Prints the self test pattern. To cancel it, make printer pause and turn off the power.

Default setting Starts the default setting mode. See “Default Setting” on page -27.

Data Dump

Starts the data dump mode, in which all the input data are printed as hexadecimal numbers and corresponding characters.

Clear EEPROM

Resets the printer to the factory default setting, which is not always proper setting for each market demand. (i.e. This function is for emergency.)

Clear Area l EEPROM data except 00H to 1FH.

Clear EEPROM for Driving Line count for ribbon change timing

Resets the Driving Line count for ribbon change timing.

Color printing position adjustment *

Starts the Color printing position adjustment mode. See “Color printing position adjustment (LX-300+II Only)” on page -28.

Bi-d adjustment Starts the Bi-d adjustment mode. See “Bi-d. Adjustment” on page -28.

Copy mode *1 Starts the copy mode.

Quiet mode *

Starts the quiet mode.

Simple default setting *1Starts the simple default setting mode.

Error analyzing mode (acquire EEPROM information) *

Beep once and starts the IEEE1284.4 Protocol mode.

The host system can communicates with Printer in error state.

Program reload mode for test *

Starts the program reload mode, which is reload BOOT area. (i.e. This function is for emergency.)

Mechanism prohibition mode *

Starts the mechanism prohibition mode, which without initialization of mechanism.

“Program reload” and “Reply firmware version” are possible without untying package of printer.

Demonstration Not available.

Page 27

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Operation 27

1.4.2.3 Default Setting

There are some parameters that can be changed by users and will be referred at the time of initialization of the printer.

 Setting mode

1. Enters the Default setting mode. The method of selecting language for “Usage of this mode” is printed.

2. Select language for “Usage of this mode” by LF/FF button. Font LEDs show the language for “Usage of this mode” that is currently selected. This section will be advanced one by one as the button is pressed and the On/Off/ Blink/2-Blink of those three LEDs will also be changed according to the selection.

3. Press Tear Off button. The current setting and the “Usage of this mode” by selected language will be printed on the paper set in the paper path at that time.

4. Select Menu by Tear Off button. Font LEDs show the menu which is selected at that time. The selection will be advanced one by one as the button is pressed and the combination of those three LEDs status of On/Off/Blink/2-Blinks will be changed according to the selection.

5. Select setting value by LF/FF button. Font LEDs and Pause LED show that menu’s value by status of On/Off/Blink/2Blinks. That value can be changed by pressing LF/FF button and the LEDs status of On/Off/Blink/2-Blinks will be changed as the button is pressed.

6. When LF/FF button is pressed, the printer stores the last setting value in memory.

7. Repeat (4) to (6). The other items can be changed in the same manner. The menu selection will return to the first menu after the last menu selection is over.

8. Turn the printer off. The setting is stored into non-volatile memory.

*1 This setting is effective when IBM 2380 (LX-300+II) or IBM2381 (LX-1170II) Plus

emulation is selected.

*2 Settings with bold weight mean the standard factory settings.

Table 1-27. Setting Menu

Item Setting / Value *

Page length for tractor

3 inch, 3.5 inch, 4 inch, 5.5 inch, 6 inch, 7 inch, 8inch, 8.5 inch, 11 inch, 70/6 inch, 12 inch, 14 inch, 17 inch

Skip over perforation OFF, ON

Auto tear off OFF, ON

Auto line feed OFF, ON

Print direction Bi-d., Uni-d., Auto

Software

LX-300+II: ESC/P2, IBM 2380 Plus LX-1170II: ESC/P2, IBM 2381 Plus

0 slash OFF, ON

High speed draft OFF, ON

I/F mode Auto, Parallel, Serial, USB

Auto I/F wait time 10 seconds, 30 seconds

Baud rate

19200BPS, 9600BPS, 4800BPS, 2400BPS, 1200BPS, 600BPS, 300BPS

Parity None, Odd, Even, Ignore

Data length 8 bit, 7 bit

Parallel I/F bidirectional mode OFF, ON

Packet mode Auto, OFF

Character table

Standard version

Italic,

PC437

, PC850, PC860, PC863, PC865, PC861, BRASCII,

Abicomp, Roman8, ISO Latin 1, PC858, ISO 8859-15

NLSP version

Italic, PC437, PC850, PC437, Greek, PC853, PC855, PC852, PC857, PC866, PC869, MAZOWIA, Code MJK, ISO 8859-7, ISO Latin 1T, Bulgaria, PC774, Estonia, ISO 8859-2, PC 866 LAT., PC 866UKR, PC APTEC, PC708, PC720, PCAR 864, PC860, PC865, PC861, PC863, BRASCII, Abicomp, Roman8, ISO Latin 1, PC858, ISO 8859-15, PC771, PC437 Slovenia, PC MC, PC1250, PC1251

International character set for Italic table

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

Manual feed wait time 1 second, 1.5 seconds, 2 seconds, 3 seconds

Buzzer OFF, ON

Auto CR (IBM 2380/2381 Plus)

OFF, ON

IBM character table

Table2, Table1

Page 28

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Operation 28

1.4.2.4 Bi-d. Adjustment

Bi-d. adjustment can be made by users. Bi-d. adjustment method is as follows.

1. Turning the printer on while pressing Pause switch. The guide to adjust Bi-d alignment in this mode and the first alignment pattern will be printed.

2. Select the most closely aligned number by pressing LF/FF (

↓

) and Load/Eject (↑) switches. Font LEDs and Pause LED show the pattern number which is selected at that time. The selection is advanced one by one as the switch is pressed, and the combination of On/ Off/Blink of those three LEDs is also changed according to the selection.

3. Fix the selected number by pressing Tear Off switch. Selected number is fixed and the next alignment pattern is printed.

4. Repeat step 2 to 3 until finishing Bi-d adjustment for NLQ mode. Following adjustment is executed.

- Bi-d. adjustment for high speed draft mode

- Bi-d. adjustment for draft mode

- Bi-d. adjustment for NLQ mode

5. Turn the printer off. The setting is stored into non-volatile memory.

1.4.2.5 Color printing position adjustment (LX-300+II Only)

Color printing position alignment can be adjusted by users. Color printing position adjustment method is as follows.

1. Turning the printer on while pressing Load/Eject & Pause switch. The guide to adjust color print position alignment in this mode is printed and first alignment pattern is printed.

2. Check the alignment pattern. If there is an incorrect color or parts of the print are missing at any of the patterns, move the motor unit lever.

3. Press the Load/Eject switch. The alignment pattern is printed again.

4. Repeat (2) and (3) until finishing color printing position adjustment.

5. Turn the printer off.

1.4.3 Errors

 Paper out error:

When the printer fails to feed a sheet, it goes into a paper out error.

 Release lever error:

When release lever position is wrong, it goes into a release lever error.

 Fatal errors:

Carriage control error and Power supply voltage error.

Page 29

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Control codes 29

1.5 Control codes

1.5.1 ESC/P2

* LX-300+II only

Table 1-28. ESC/P2

Classification Operation Command

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 1, ESC 2, ESC3, ESC A

Carriage Return CR

Page format Page Length ESC C, ESC C0, ESC (C

Left / Right Margin ESC Q, ESC1

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

Define Unit ESC (U

Print position motion Horizontal Print Position ESC$, ESC

Tab Horizontally ESC D, HT

Tab Vertically ESC B, VT

Advance paper ESC J

Font selection Typeface ESC k, ESC x, ESC y

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-

Spacing Intercharacter Space ESC Space

Character handling Character Table ESC t, ESC (t

International Character ESC R

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

Control code selection ESC1

Upper Control Codes ESC6, ESC7

Bit image

8 pin Bit Image

ESC K, ESC L, ESC Y, ESC Z, ESC*

9 pin Bit Image ESC ^

Printing color* Select color ESC r

Bar code Bar code ESC (B

Production EEPOM write, etc. ESC|

Table 1-28. ESC/P2 (continued)

Classification Operation Command

Page 30

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Control codes 30

1.5.2 IBM 2380/2381 Plus Emulation

LX-300+II/LX-1170II supports not only ESC/P2 but also the following control code.

 LX-300+II: IBM2380

 LX-1170II: IBM2381

Table 1-29. IBM 2380/2381 Plus emulation

Classification Operation Command

General Operation Nop NUL, DC3

Off Line ESC j

Buzzer BEL

Cancellation CAN

Select / Deselect DC1, ESC Q

Initialize Printer ESC [K

Unidirectional Printing ESC U

Select Auto Sheet Feeder ESC [F

Paper feeding Form Feed FF

Line Feed, Auto Line Feed

LF, ESC5

Line Spacing

ESC A, ESC 0, ESC 1, ESC 2, ESC3

Carriage Return CR

Reverse Line Feed ESC]

Page format Page Length ESC C, ESC C0

Left / Right Margin ESC X

Skip Over Perforation ESC N, ESC O

Set TOF ESC 4

Print position motion Horizontal Print Position ESC d

Initialize Tab Position ESC R

Tab Horizontally ESC D, HT

Tab Vertically ESC B, VT

Advance paper ESC J

Font selection Pitch DC 2, ESC P, ESC:

Bold Font ESC E, ESC F

Master Select ESC I

Print Quality ESC [d

Select Font and Pitch ESC [I

Font enhancement Double-Width DC4, SO, ESC SO, ESC W

Enlarge and Life Space ESC [@

Condensed SI, ESC SI

Double-Strike ESC G, ESC H

Super-/ Subscript ESC T, ESC S

Underline ESC -

Line / Score ESC_

Spacing Back Space BS

Space SP

Character handling Character Table ESC 6, ESC 7, ESC [T

Print Data as Characters ESC ^, ESC

Bit image Bit Image ESC K, ESC L, ESC Y, ESC Z

Bar code Set up Bar code ESC [f

Transfer Bar code ESC [p

Download Download ESC=(only Draft mode)

Table 1-29. IBM 2380/2381 Plus emulation (continued)

Classification Operation Command

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EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Control codes 31

1.5.3 Bi-Directional Commands

 Reply printer ID

Reply printer ID: [ESC][SOH]@EJL[SP]ID[CR][LF] The printer sends the following ID string in reply to this command.

 Enter / Exit Remote Mode



Enter Remote Mode: [ESC](R[08H][00H][00H]REMOTE1



Exit Remote Mode: [ESC][NUL][00H][00H]

 Remote Commands



Change Printer Settings: XX[nL][nH][00H][ml]...[mx]



Reply Printer Settings: XX[nL][nH][01H][ml]...[mx]

XX is a string of 2 ASCII characters of defining a feature of the command. Following [nL][nH] is two byte hexadecimal value that denotes the length of the [00H] and [ml]...[mx] parameters. Last [m1] ... [mx] parameters are used to describe the detailed command function and represent printer settings.

The printer sends the following string in reply to the commands of this type:

@BDC[sp]PS[CR][LF]

XX: Reply-Data;

[FF]

Table 1-30 shows the XXs that are provided in this printer.

-[Save] column shows whether SV commands are effective to each feature or not.



: All parameters are saved., Δ: Some limited parameters are saved.,-: No parameter is

saved.

*1 Only for customized models.

*2 m1=0 to 1 only

*3 Only the following parameters are stored in memory. (Table 1-31)

@EJL[SP]ID[CR][LF] MFG: EPSON; CMD: ESCP9, PRPII9,BDC; MDL: LX-300+II; CLS: PRINTER; DES: EPSON[SP]LX-300+II; [FF]

@EJL[SP]ID[CR][LF] MFG: EPSON; CMD: ESCP9,PRPII9,BDC; MDL: LX-1170II; CLS: PRINTER; DES: EPSON[SP]LX-1170II; [FF]

LX-300+II LX-1170II

Table 1-30. Bi-Directional Commands

Function Code/ Parameter Save

Enter Remote-1 ESC”(R”08H 00H 00H “REMOTE1” -

Exit Remote-1 ESC 00H 00H 00H -

Save settings “SV” 00H 00H -

Initialize “RS” 00H 00H -

Load power-on default “LD” 00H 00H -

Select typeface “FO” 02H 00H 00H m1

m1=0(Roman), 1(Sans serif), 5(OCR-B)*1

Δ*2

Select character pitch “CP” 02H 00H 00H m1

m1=0(10cpi), 1(12cpi), 2(15cpi), 3 (17.1cpi), 4(20cpi), 5(Propotional)



Select draft or NLQ “CQ” 02H 00H 00H m1

m1=0(Draft), 1(NLQ), 2(High speed draft)



Select character table “CT” 02H 00H 00H m1

m1=0 (Table0), 1(Table1)

Δ*3

Assign character table “AT” 04H 00H 00H m1 m2 m3

m1=0(Table0), 1(Table1) m2, m3=(ESC/P2 Character Table No.)*4

Δ*3

Select an international character set

“IC” 02H 00H 00H m1 m1=0(U.S.A), 1(France), 2(Germany), 3(U.K.) 4(Denmark1), 5(Sweden), 6(Italy), 7(Spain1), 8(Japan), 9(Norway), 10(Denmark2), 11(Spain2), 12(Latin America)

Δ*5

Turn 1 inch skip perforation on/off

“SK” 02H 00H 00H m1 m1=0(off), 1(on)



Page 32

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Control codes 32

*4 m2 and m3 apply to the following ID number. (See Table 1-32 & Table 1-33.)

*5 m1=0 to 7 only

Table 1-31. Note for Table 1-30

m1 set by AT/CT m2 set by AT m3 set by AT

0 0 0

1 All parameters that can be set

Table 1-32. Std and NLSP ver.

m2 m3 Character table m2 m3 Character table

00H 00H Italic 19H 00H BRASCII

01H 00H PC437 1AH 00H Abicomp

03H 00H PC850 7FH 01H ISO Latin1

07H 00H PC860 23H 00H Roman8

08H 00H PC863 2CH 00H PC858

09H 00H PC865 1DH 0FH ISO 8859-15

18H 00H PC861

Table 1-33. NLSP ver. only

m2 m3 Character table m2 m3 Character table

01H 10H PC437 Greek 20H 00H Bulgaria

05H 00H PC853 21H 00H Hebrew 7

06H 00H PC855 22H 00H Hebrew 8

0AH 00H PC852 24H 00H PC 774

0BH 00H PC857 25H 00H Estonia

0CH 00H PC862 28H 00H PC APTEC

0EH 00H PC866 29H 00H PC 708

0EH 20H PC866 LAT. 2AH 00H PC720

0EH 30H PC866 UKR 7FH 02H ISO 8859-2

0FH 00H PC869 2DH 00H PC771

0DH 20H PCAR_864 01H 20H PC437 Slovenia

1BH 00H MAZOWIA 2FH 00H PC MC

1CH 00H Code MJK 30H 00H PC1250

1DH 07H ISO 8859-7 31H 00H PC1251

1FH 00H ISO Latin 1T

Table 1-34. Bi-Directional Commands

Function Code/ Parameter Save

Set page length “PG” 05H 00H 00H p1 p2 m1 m2

p1=0(Continuous paper), p2=0(Rear), p1=1(CSF), p2=0(bin1) p1=2(Manual insertion), p2=0(Rear)

-Page length=m1+256*m2,

0.118mm (1/216inch) 648 (76.2mm(3inch)) <= m1+256*m2 <= 4752(558.8mm(22 inch))



Set Top margin “TP” 05H 00H 00H p1 p1 m1 m2

p1=0(Continuous paper), p2=0(Rear), p1=1(CSF), p2=0(bin1) p1=2(Manual insertion), p2=0(Rear)

-Top margin=m1+256*m2,

0.118mm (1/216inch) 36 (4.2mm) <= m1+256*m2 <= 288 (8.5mm +

25.4mm(1inch))



Turn unidirectional mode on/ off

“PD” 02H 00H 00H m1 m1=0(Bi-d.), 1(Uni-d.)



Turn auto tear-off on/off “TO” 02H 00H 00H m1

m1=0(off), 1(on)



Turn auto line feed on/off “LF” 02H 00H 00H m1

m1=0(off), 1(on)



Select control language “PM” 02H 00H 00H m1

m1=0(ESC/P), 2(IBM 238x Plus emulation)



Turn printer state reply on/off “ST” 02H 00H 00H m1

m1=0, 1, 2, 3

Turn Slash zero on/off “EX” 06H 00H 00H 00H 00H 00H 01H m1

m1=0(off), 1(on)



Turn Buzzer on/off “EX” 06H 00H 00H 00H 00H 00H 02H m1

m1=0(enable), 1(disable)



Turn IBM emulation Auto CR on/off

“EX” 06H 00H 00H 00H 00H 00H 04H m1 m1=0(off), 1(on)



Page 33

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Control codes 33

1.5.3.1 Reply Printer Status

The printer sends back one of the five strings shown below every few seconds according to the printer status at that time.

“@BDC”SP “ST” CR LF “ST:” <status code>“;” [“ER:” <error code>“;”] [“PP:”<paper_path>“;”] [“CD:”<printer status codes>“;”] [“IG:”<nn1><nn2><n3>[“,”...<nnx1><nnx2><nnx3>]“;”] [“TEC:”<ii1>“;”] FF

 status_code

 error_code

Set starting data/month/year “SD” 04H 00H 00H m1 m2 m3

00<=m1<=99, 01<=m2<=12, 01<=m3<=31



Inquire printer state reply on/ off

“ST” 01H 00H 01H “@BDC” SP “PS” CR LF “ST:” <nn> “;” FF

Echo parameters “??” nL nH 01H <chr-str>

“@BDC” SP “PS” CR LF “??:” <chr-str> “;” FF

Inquire starting date/month/ year

“SD” 01H 00H 01H “@BDC” SP “PS” CR LF “SD:” <nn1> <nn2> <nn3>“;” FF

Inquire total printing lines/ power on hours

“TL” 01H 00H 01H “@BDC” SP “PS” CR LF “TL:” “;” “TPL:” <nnnnnnnn2> “;” “TPH:” <nnnn3>“;” “TPR:” <nnnnnnnn4> “;” FF

Table 1-34. Bi-Directional Commands (continued)

Function Code/ Parameter Save

Table 1-35. Status_Code

Status “<status code>”

In the error state “00”

In the busy state “02”

In the waiting state “03”

In the idle state “04”

In the pause state “05”

Table 1-36. Error_Code

Error “<error code>”

Fatal error “00”

Port is not selected “01”

Release lever position error “03”

Paper out “06”

Page 34

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Control codes 34



Paper_path

 characteristic status code

 MIB proxy information

“IG:” “0305NA,” Sheet feeder bin 1 (removable), capacity 5 mm,

quantity of paper N.A.

“09NANA,” Manual feed rear, capacity N.A., quantity of paper N.A. “0CNANA;” Tractor rear, capacity N.A., quantity of paper N.A. “TEC:06;” 9-pin SIDM

1.5.3.2 Packet commands

*1 The reply string is the same as BDC-ID Reply.

*2 The reply string is the same as BDC-ST Reply.

Table 1-37. Paper_Path

paper_path “<paper_path code>”

Continuous paper (rear) “0000”

Continuous paper (bottom) “0001”

Cut sheet (rear) “0200”

CSF Single bin “0100”

Table 1-38. Characteristic Status Code

location size type Refer to

Structure version +0 2bytes “02” fixed -

Starting date +2 6bytes “yy”, “mm”, “dd” “SD” command

Total printing line number +8 8bytes “nnnnnnnn” “TL” command

Total power on hour +16 4bytes “nnnn” “TL” command

Total printing line number for ribbon charge timing

+20 8bytes “nnnnnnnn” “TL” command

Table 1-39. Packet Commands

Function Code

Device ID request “di” 01H 00H 01H

Device ID reply *

“@EJL” SP “ID” CR LF <Device ID string> FF

State-Reply request “st” 01H 00H 01H

State-Reply *

“@BDC” SP “ST” CR LF <printer status string> FF

Reply EEPROM data in the specific address request (LX-300+II)

“|| ” 06H 00H r1 r2 41H BEH A0H d1

r1, r2 means R code. (e.g. r1=A8, r2=5Ah)

d1 : EEPROM address (00h - FFh)

Reply EEPROM data in the specific address request (LX-1170II)

“|| ” 06H 00H r1 r2 41H BEH A0H d1

r1, r2 means R code. (e.g. r1=A8, r2=6Ah)

d1 : EEPROM address (00h - FFh)

EEPROM data reply “@BDC” SP “PS” CR LF “EE:” <addr> <data> “ ;” FF

No support command

“XX:;” FF (XX is the command string being invalid.)

Page 35

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Initialization 35

1.6 Initialization

 Power-on initialization

The initialization of this level is activated by power-on or cold-reset command (remote RS command). This initialization is;



to initialize the printer mechanism.



to execute Operator initialization.

 Operator initialization

The initialization of this level is activated by -INIT signal (negative pulse). This initialization is;



to clear all the buffers of data.



to cancel the download character definition.



to make the printer stand-by state, if no errors occur.



to execute Software initialization.

 Software initialization

The initialization of this level is activated by the control code ESC@. This initialization is;



to clear the unprinted data.



to make the printer’s setting defaults.

Page 36

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Paper Specifications 36

1.7 Paper Specifications

 Cut sheet (single sheet, not multi part)

Note: The value in parentheses represents the size available with LX-1170II.

Note: Printing on reclaimed paper is available only under normal temperature and

humidity conditions.

 Cut sheet (multi part)

Note: The value in parentheses represents the size available with LX-1170II.

Note: Printing on multi part paper is available only under normal temperature and humidity

conditions.

Table 1-40. Cut Sheet (single sheet, not multi part)

Manual insertion CSF single-bin

Minimum Maximum Minimum Maximum

Width

inch 3.9 (5.8) 10.1 (16.5) 7.2 8.5 (16.5)

mm 100 (148) 257 (420) 182 216 (420)

Length

inch 3.9 14.3 10.1 14.0 (14.3)

mm 100 364 257 356 (364)

Thickness

inch 0.0025 0.0055 0.0028 0.0055

mm 0.065 0.14 0.07 0.14

Weight

g/m

52 90 64 90

lb. 14 24 18 24

Quality

Plain paper, Reclaimed paper Not curled, not folded, not crumpled

Table 1-41. Cut Sheet (Multi part)

Minimum Maximum

Width

inch 3.9 (5.8) 10.1 (16.5)

mm 100 (148) 257 (420)

Length

inch 3.9 14.3

mm 100 364

Copies 1 original + 4 copies

Total Thickness

inch 0.0047 0.0154

mm 0.12 0.39

Weight (one sheet of multipart)

g/m

40 50

lb. 12 15

Quality

Plain paper, Reclaimed paper Not curled, not folded, not crumpled.

Jointing Line glue at the top or one side of form.

Page 37

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Paper Specifications 37



Envelope

Note: Printing on envelope is available only under normal temperature and humidity

conditions.

Note: Set the longer side of envelope horizontally.

 Continuous paper (Single sheet and Multipart)

Note: The value in parentheses represents the size available with LX-1170II.

Table 1-42. Envelope

Minimum Maximum

Envelop (No. 6)

Width

inch 6.5

mm 165

Length

inch 3.6

mm 92

Envelop (No. 10)

Width

inch 9.5

mm 241

Length

inch 4.1

mm 105

Total Thickness

inch 0.0063 0.0205

mm 0.16 0.52

The difference of thickness at the recommended printable area is within 0.25mm or 0.0098 inch.

Weight

g/m

45 90

lb. 12 24

Quality

BOND paper, PLAIN paper or AIR MAIL No glue at a flap Not curled, not folded, not crumpled

Table 1-43. Continuous Paper (Single sheet and Multi Part)

Rear Entry Bottom Entry

Min. Max. Min. Max.

Width

inch 4 10 (16) 4 10 (16)

mm 101.6 254 (406.4) 101.6 254 (406.4)

Length (one page)

inch 4 22 4 22

mm 101.6 558.8 101.6 558.8

Copies 1 original + 4 copies 1 original + 4 copies

Total Thickness

inch 0.0025 0.0154 0.0025 0.0154

mm 0.065 0.39 0.065 0.39

Weight

(not multipart)

g/m

52 82 52 82

lb.14221422

Weight (one sheet of multipart)

g/m

40 58 40 58

lb.12151215

Quality

Plain paper, Reclaimed paper, Carbonless multipart paper

Jointing

Point glue or paper staple (both sides)

Page 38

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Paper Specifications 38



Labels

Note: The value in parentheses represents the size available with LX-1170II.

Note: Printing on labels is available only under normal temperature and humidity

conditions.

Note: The base sheet of labels must be continuous paper.

Note: Continuous paper with labels should be inserted from the bottom entrance.

Figure 1-9. Recommended Printable Area for Label



Roll paper

Table 1-44. Continuous Paper with Labels

Rear Entry Bottom Entry

Min. Max. Min. Max.

Label size --- See the figure below.

Base sheet width

inch

--- ---

4 10 (16)

mm 101.6 254 (406.4)

Base sheet length (one page)

inch

--- ---

4 22

mm 101.6 558.8

Base sheet thickness

inch

--- ---

0.0028 0.0035

mm 0.07 0.09

Total thickness

inch

--- ---

0.0063 0.0075

mm 0.16 0.19

Label weight

g/m

--- ---

lb. 17

Quality ---

AVERY CONTINUOUS FORM LABELS, AVERY MINI-LINE LABELS or the same quality labels

63.5 mm (2.5 inches) min.

23.8 mm

(15/16 inch)

min.

R_2.5 mm (0.1 inch) min.

Label

Table 1-45. Roll Paper

Minimum Maximum

Width

inch 8.5

mm 216

Length

inch - - -

mm - - -

Thickness

inch 0.0028 0.0035

mm 0.07 0.09

Weight

g/m

52 82

lb. 14 22

Quality Plain paper, Not curled, not folded, not crumpled

Page 39

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Physical Specifications 39

1.8 Physical Specifications

1.8.1 Physical Specifications for LX-300+II

 Physical Specifications (Without pull tractor)



Dimensions: 366 x 275 x 159 mm (WxDxH)

Except knob, paper guide & paper supports



Mass: Approx. 4.4 kg



Appearance: See the figure below.

Figure 1-10. Appearance Without Pull Tractor (LX-300+II)



Physical Specifications (CSF)



Dimensions: 366 x 441 x 370 mm (WxDxH)

Except knob, paper guide & paper supports



Mass: Approx. 4.6 kg



Appearance: See the figure below.

Figure 1-11. Appearance With CSF (LX-300+II)

366

390.2

275

328

158.5

192.7

366

390.2

275

441

158.5

370

Page 40

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Physical Specifications 40

1.8.2 Physical Specifications for LX-1170II

 Physical Specifications (Without pull tractor)



Dimensions: 546 x 275 x 159 mm (WxDxH)

Except knob, paper guide & paper supports



Mass: Approx. 6.6 kg



Appearance: See the figure below.

Figure 1-12. Appearance Without Pull Tractor (LX-1170II)



Physical Specifications (CSF)



Dimensions: 546 x 440 x 377 mm (WxDxH)

Except knob, paper guide & paper supports



Mass: Approx. 7.2 kg



Appearance: See the figure below.

Figure 1-13. Appearance With CSF (LX-1170II)

546

570.2

275

328

163.5

197.7

546

570.2

275

439.4

163.5

376.6

Page 41

EPSON LX-300+II/300+II RTP/1170II Revision D

PRODUCT DESCRIPTION Accessories 41

1.9 Accessories

 Enclosed Parts

 Expendables

 Options

* These options for LX-300+II and LX-1170II are the same as those for LX-300+ and

LX-1170, respectively.

Table 1-46. Enclosed Parts

Enclosed Items Quantity

User's manual 1

Driver disk 1

Ribbon cartridge (Black) 1

Power supply cable (230 V Version) 1

Table 1-47. Expendables

Enclosed Items

Description

LX-300+II LX-1170II

Ribbon cartridge (Black ) #8750 #8755

Ribbon pack (Black) #8758

Ribbon cartridge (Color) S015073 –

C H E C K

P O I N T

The ribbon cartridges and ribbon pack for LX-300+II and LX-1170II are the same as those for LX-300+ and LX-1170, respectively.

Table 1-48. Options

Unit

Description

LX-300+II LX-1170II

Cut sheet feeder * C80637* C80639*

Pull tractor unit * C80030* C80034*

Roll paper holder * #8310

Color upgrade kit * C83208* –

EpsonNet 802.11b/g Wireless and 10/100 Base Tx Ext. Print Server

C82437*

C H E C K

P O I N T

EpsonNet 802.11b/g Wireless and 10/100 Base Tx Ext.Print Server can be used also with the predecessor model, or LX-300+/1170. In addition, EpsonNet 10/100 Base TX Ext. Print Server (C82378*), which is an old model, can be used also with LX-300+II / LX-1170II.

Page 42

CHAPTER

OPERATING PRINCIPLES

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EPSON LX-300+II/300+II RTP/1170II Revision D

Operating Principles Overview 43

2.1 Overview

LX-300+II/1170II consists of the printer mechanism and electric circuit boards.

Figure 2-1. Component Unit



Circuit board

The following sections describe the operating principles of each unit.

Table 2-1.

LX-300+II LX-1170II

Main Board (control circuit) C604Main C641Main

Power Supply Board C294PSB/C294PSE

Panel Board C294PNL

Power Supply

Board

C294PSB/PSE

Main Board

C640/641

MAIN

Printer

Mechanism

Panel Board

C294PNL

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EPSON LX-300+II/300+II RTP/1170II Revision D

Operating Principles Printer Mechanism 44

2.2 Printer Mechanism

The following are main components of the LX-300+II/1170II printer mechanism.

 Printhead

 Carriage mechanism

Carriage (CR) motor, Carriage home position (HP) detector

 Ribbon mechanism

Color ribbon drive mechanism (option)

 Platen gap adjustment mechanism

Adjust lever, Platen gap detector

 Paper feed mechanism

PF motor, rear paper end (RPE) detector, bottom paper end (BPE) detector

 Release mechanism

Release detector (REL)

Figure 2-2. Printer Mechanism Block Diagram

Rear paper end detector

Bottom paper end detector

Platen

Tractor

PF motor

Ribbon

Carriage

Ribbon Mechanism

Printhead

Adjust lever

Platen gap detector

Carriage motor

Timing belt

Carriage guide shaft

Release detector

Release mechanism

Carriage home position detector

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EPSON LX-300+II/300+II RTP/1170II Revision D

Operating Principles Printer Mechanism 45

2.2.1 Printhead

The table below shows the printhead specifications.

Figure 2-3. Wire Configuration

2.2.1.1 Buzzer Function

This printhead also works as a buzzer. The table below shows buzzer specification.

Table 2-2. Printhead Specifications

Item Specification

Number of wires 9 Diameter of wire φ0.29 mm

Wire configuration

See Figure 2-3 "Wire Configuration".

Note: The figure is seen from the back of the head facing printing side.

Direct current coil resistance 33.3 ±3.3 Ω (25°C)

Head drive method Rated voltage drive

Head drive voltage 35+2.1/-3.5 V

Peak current

• Normal: 0.75 A (Standard)

• Copy: 0.85 A (Standard)

1.0 A (Maximum)

Head drive frequency

• Normal: 1350Hz or less

• Copy: 1350Hz or less

Head life

• Black ribbon: 0.2 billion strokes/ wire or more

• Color ribbon: 0.1 billion strokes/ wire or more

Environmental condition

• Temperature: 5 to 55°C

• Humidity: 10 to 85%

Table 2-3. Buzzer Function -- Specification

Item Specification

Head voltage 35 +2.1 / -3.5 V

Drive frequency 2kHz, 1.5kHz

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EPSON LX-300+II/300+II RTP/1170II Revision D

Operating Principles Printer Mechanism 46

2.2.2 Carriage Mechanism

The following are the components of the LX-300+II/1170II carriage mechanism and their explanation. (Figure 2-2, "Printer Mechanism Block Diagram")

 Carriage: Mounts the printhead.

 CR motor: Drives carriage in the printing column direction.

 Timing belt: Transfers the drive from the CR motor to the carriage.

 Carriage guide shaft: Shifts the carriage parallel to the platen.

 HP detector: Detects carriage home position.

CR MOTOR

This printer uses a stepping motor for CR motor. Open loop control switches the phases according to the setting period and this mechanism enables the carriage to move until the appointed position. The table below is the CR motor specifications.

Table 2-4. CR Motor Specifications

Item Specification

Motor type 2-phase/200-pole hybrid stepping motor Coil resistance 4.5Ω±10% (25°C)

Control method Bi-polar drive

Phase drive 2-2 phase, 1-2 phase, W1-2 phase

Drive voltage 35 VDC +5/-10 %

CR feed pitch

Minimum Resolution:

0.212 mm (1/120”) (2-2 phase, 1 pass)

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EPSON LX-300+II/300+II RTP/1170II Revision D

Operating Principles Printer Mechanism 47

Table 2-5. Carriage Speed Mode

Carriage

speed mode

CR drive

frequency

[Hz]

Printing

mode

Phase

drive [pps]

Current limit (A/phase) Adjacent

dot

resolution

[dpi]

Head drive

frequency

[Hz]

Printing speed

Carriage speed mode at power

down

High or

low speed

printing

Front

rush

High

speed

Normal

speed

Low

speed

Rear rush

A 3600

Color 2-2 0.79 0.79 0.70 0.70 0.70

45 1350 High speed draft 10 cpi C 

BW 2-2 0.70 0.59 0.59 0.59 0.59

B 3375

Color 2-2 0.79 0.79 0.70 0.70 0.70

48 1350 High speed draft 12 cpi E 

BW 2-2 0.70 0.59 0.59 0.59 0.59

C 2700

Color 2-2 0.79 0.79 0.70 0.70 0.70

60 1350

High speed draft 15 cpi Draft 10 cpi Bit image 60 dpi

F 

BW 2-2 0.70 0.59 0.59 0.59 0.59 Draft 12 cpi

D 2250

Color 2-2 0.79 0.79 0.70 0.70 0.70 1440/21 1286 High speed draft 17 cpi



BW 2-2 0.70 0.59 0.59 0.59 0.59 72 1350 Bit image 72 dpi

E 1800

Color 2-2 0.79 0.79 0.70 0.70 0.70 80 1200 Bit image 80 dpi

BW 1-2 0.65 0.65 0.59 0.59 0.59 90 1350

High speed draft 20 cpi Draft 15 cpi Bit image 90 dpi

F 1350 Both 1-2 0.65 0.65 0.59 0.59 0.59 120 1350

Draft 20/17 cpi NLQ 10 cpi Bit image 120 dpi

G 1125 Both 1-2 0.65 0.65 0.59 0.59 0.59 144 1350 Bit image 144 dpi I x

H 900 Both 1-2 0.65 0.65 0.59 0.59 0.59 180 1350 NLQ 15 cpi I x

I 675 Both 1-2 0.65 0.65 0.59 0.59 0.59 240 1350 NLQ 17/20 cpi J x

J 450 Both 1-2 0.65 0.65 0.59 0.59 0.59 - x

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Operating Principles Printer Mechanism 48

CARRIAGE HOME POSITION (HP) DETECTOR

The table below shows the HP detector specifications.

HP detector detects the signal right after when the CR motor switches the phase.

2.2.2.1 High speed skip method

At no-printing area, the carriage moves at high speed compared to the normal carriage speed at printing. This is called carriage control.

2.2.3 Ribbon Mechanism

2.2.3.1 Ink Ribbon Shifting Mechanism

Ink ribbon shifting mechanism: CR motor drives the timing belt and the timing belt driven pulley drives the ribbon shifting gears.

2.2.3.2 Color Ribbon Driving Mechanism (Option)

Color ribbon driving is only available for LX-300+II.

Color ribbon driving mechanism: shifts the color ribbon up and down to change the color area of the ribbon to be used for printing.

Color ribbon mechanism consists of the color shift (CS) motor, CS cam, ribbon detector, CS lever assembly and color cartridge holder. Color ribbon is installed on the color cartridge holder.

When CS motor runs, 1) the pinion revolves CS cam, 2) the CS lever assembly on the CS cam shifts the color cartridge holder up and down and 3) drives ribbon up and down.

Table 2-6. HP detector Specifications

Item Specification

Method Mechanical contact method

Switching rate 0.6 to 1.0 mA, 5 VD±5%

Switching mode

• out of HP: close

• within HP: open

Table 2-7. CS Motor Specifications

Item Specification

Motor type 2-phase/48-pole PM stepping motor Coil resistance 150Ω ±5% (25°C, per 1 phase)

Control method uni-polar rated voltage drive

Phase drive 2-2 phase

Drive voltage 36.75 ± 1.75 VDC

Consuming current

• Operating, peak current: 245 mA

• Non-operating: 20 mA

Drive frequency 500 pps

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Operating Principles Printer Mechanism 49

Figure 2-4. Color Ribbon Driving Mechanism

RIBBON CARTRIDGE DETECTOR

Ribbon detector detects if the color ribbon is installed or not.

 Detect Timing



When the power is applied.



When recovering from the economy mode.



When the printing is started.

AVOID STAINING COLOR RIBBON WITH DIFFERENT COLORS

To minimize staining the color areas on the ribbon with different colors, printing in green, violet or orange is performed in the following order.

Color ribbon drive circuit

CS lever assembly

Ribbon detector

CS cam

CS motor

CS lever assembly

Color ribbon

Color cartridge holder

CS motor, pinion

CS cam

Black

Cyan

Magenta

Yellow

Table 2-8. Ribbon Detector Specifications

Item Specification

Method Mechanical contact method

Switching rate 0.6 to 1.0 mA

Switching mode

• Color ribbon cartridge is installed: High

• Black ribbon cartridge is installed or no ribbon is installed: Low

Table 2-9. Color Printing Order

Color First color Second color

Green Yellow Cyan

Orange Yellow Magenta

Violet Magenta Cyan

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Operating Principles Printer Mechanism 50

COLOR MECHANISM INITIALIZATION

The printer mechanism is initialized when the power is applied or when recovering from the energy saving mode.

 Color mechanism initialization

Color mechanism initialization shifts color mechanism for the black ink area to be at the home position. Color mechanism initialization shifts the carriage at the same time to prevent the ribbon from hanging on the printhead. When the buffer is cleared or when the printer is under the pause condition, the color mechanism

is initialized

and waits for the next printing command.

2.2.4 Platen Gap Adjustment Mechanism

This mechanism is to adjust the distance between the platen and the printhead (platen gap) according to the paper thickness.

The following are the components of the LX-300+II/1170II platen gap adjustment mechanism and their explanation. (Refer to Figure 2-5, "Platen Gap Adjustment Mechanism")

 Carriage: Mounts the printhead.

 Carriage guide shaft: Shifts the carriage horizontally.

 Adjust lever and Parallelism adjust bushing:

Installed at both ends of the carriage guide shaft

 Platen gap detector (PG_SW)

Carriage guide shaft is eccentric toward the adjust lever rotating center. Due to this, when rotating the adjustment lever back and forth, the printhead shifts toward and against the platen to adjust the platen gap. When printing on thick paper such as postcards and envelops, set the adjust lever over the 1st level. PG detector shifts the printer to the copy mode from the printing mode. Printing speed will be lowered but it prevents wire from breaking off.

PLATEN GAP (PG_SW) DETECTOR

The following is PG_SW specification.

Figure 2-5. Platen Gap Adjustment Mechanism

Table 2-10. PG_SW Detector Specifications

Item Specification

Method Mechanical contact method

Switching rate 0.6 to 1.0 mA, 5 VD±5%

Switching mode

• PG=0: close

• PG=0-4: open

Adjust lever

Carriage guide shaft

Carriage

Parallelism adjust

bushing

Printer mechanism

Parallelism adjust

bushing

PG_SW

Platen gap

Platen

Carriage guide shaft

Carriage

Printhead

Adjust lever

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Operating Principles Printer Mechanism 51

2.2.5 Paper Feed Mechanism

This mechanism consists of the paper feed motor (PF motor), paper feed gears, platen, rear paper end detector, bottom paper end detector and push tractor unit. (Refer to Figure 2-2, "Printer Mechanism Block Diagram")

 Paper Feed Method



Friction feed



Push tractor feed Uses standard push tractor



Push-pull tractor feed Uses standard push tractor + Option tractor



Pull tractor feed Replace the standard push tractor with option tractor

 Feeder



Simple CSF (option)



Tractor (standard) Push / Pull



Pull tractor (option)



Roll paper holder

 Paper path



Manual loading Rear paper load, top paper load



CSF Rear paper load, top paper load



Push tractor Rear paper load, top paper load



Pull tractor Rear / Bottom paper load, top paper load

 Auto loading

When loading paper manually, push paper between the platen and the driven paper load roller. Paper will be loaded automatically.

PF MOTOR

LX-300+II/1170II uses a stepping motor for PF motor. Open loop control switches the phases according to the setting period and this mechanism loads and carries paper to the appointed position and eject paper.

The table below shows the PF motor specifications.

Table 2-11. PF Motor Specifications

Item Specification

Motor type 2-phase/96-pole Hybrid stepping motor

Coil resistance

LX-300+II:

12Ω ±10% (25°C, per 1 phase)

LX-1170II:

10.6Ω ±10% (25°C, per 1 phase)

Control method bi-polar rated current drive

Phase drive 2-2 phase, 1-2 phase

Drive voltage

35 VDC +5 /-10 % (This voltage is added to driver.)

Drive current 0.25, 0.72, 0.8A

Paper feed pitch

Minimum Resolution:

0.059 mm (1/432”) (1-2 phase, 2 pass)

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Operating Principles Printer Mechanism 52

RPE DETECTOR

RPE detector is installed on the paper path at the back of the printer. The table below shows the RPE detector specifications.

BPE DETECTOR

BPE detector is installed right under the platen. The table below shows the BPE detector specifications.

2.2.5.1 Page Length Measurement

Page length measurement is a process to convert the following value to the number of printing lines.

Value = [The number of paper feed pulse from the paper top (top margin: 4.2mm) until RPE detector detects paper end] + [forms over-ride specified paper feed pulse] - [adjustment value]

 When CSF is used:

The uncertainty of the paper end detector may vary the number of printing lines within the same paper size. To avoid this, when CSF is used, page length measurement calculates the printable lines and if the paper is longer than the printable lines, the number of printing lines is defined by the number of the printable lines (fixed value). When paper is shorter than the printable lines, the printer prints the fixed number of lines by forms over-ride function (which allows the fixed number of lines to be printed even when RPE detector detects paper end).

 When CSF is not used:

When paper is loaded manually or when tractor feed is used, the printing area at the paper end is determined by forms over-ride function after BPE or RPE detector detects the paper end.

Table 2-12. RPE Detector Specifications

Item Specification

Method Mechanical contact method

Switching rate 0.6 to 1.0 mA, 5 VD±5%

Switching mode

• Paper inside: open

• No paper: close

Table 2-13. BPE Detector Specifications

Item Specification

Method Mechanical contact method

Switching rate 0.6 to 1.0 mA, 5 VD±5%

Switching mode

• Paper inside: open

• No paper: close

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Operating Principles Printer Mechanism 53

2.2.6 Release Mechanism

This mechanism switches the flow of PF motor driving force between to the friction feed and to the tractor feed.

Figure 2-6. Release Mechanism

Release mechanism consists of the following.

 Release lever: Shifts tractor low speed gears back and forth.

 Tractor gear

 Paper advance reduction gear: Transfers the PF motor driving force to the tractor

gear.

 Release detector (REL): Detects the release lever position.

The table below shows the release detector specifications.

2.2.7 Other Special Functions

2.2.7.1 Energy saving mode

This function saves power consumption when the printer is in the standby mode. This mode turns hold current of PF motor, CR motor and CS motor OFF.

2.2.7.2 Quiet Mode

Quiet mode lowers printing temperature. When this mode is selected, carriage speed will be lowered to the power down mode speed. Refer to Table 2-5, “Carriage Speed Mode,” on page 47.

Compression spring

Printer mechanism

PF motor

Tractor gear

Release lever

Release detector

Plain

washer

Paper

advance

reduction

gear

Table 2-14. Release Detector Specifications

Item Specification

Method Mechanical contact method

Switching rate 0.6 to 1.0 mA, 5 VD±5%

Switching mode

• Friction: open

• Tractor: close

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EPSON LX-300+II/300+II RTP/1170II Revision D

Operating Principles Electrical Circuit Operating Principles 54

2.3 Electrical Circuit Operating Principles

2.3.1 MAIN Board Electric Circuit

Figure 2-7. C640/C641 MAIN Board Block Diagram

NOTE: CS motor is only available for LX-300+II.

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EPSON LX-300+II/300+II RTP/1170II Revision D

Operating Principles Electrical Circuit Operating Principles 55

2.3.2 C294PSB / C294PSE Board

LX-300+II/1170II generates power supply by a power supply boards: either C294PSB (100V) or C294PSE (200V) depending on local supplied voltage. The table below shows the power supply boards input voltage specifications.

2.3.2.1 Electric Circuit

The power supply board supplies two types of power for control circuit and driving mechanism. The table below shows output voltage and its use.

NOTE: *: Core voltage of CPU and G/A is 3.3V and it is generated by the

regulator IC on the MAIN board from +5VDC.

Table 2-15. Main Elements

Elements Location Function

CPU

(C640/ 641MAIN)

IC3

RISC C33208 CPU, QFP 128 pin

• Outside clock 48 MHz/ Inside clock 48 MHz

• 8KBRAM built-in

• Various DMA

• A/D converter

G/A

(C640/ 641MAIN)

IC6

Approximately 21000 gates, QFP 160 pin

• Bit manipulation

• Clock control

• interface control (IEEE1284/Type-B I/F)

• Input Buffer control

• Motor control

• Head control

CPU/GateArray

(C640/ 641MAIN)

IC3

CPU:

RISC C33208 CPU, QFP 128 pin

• Outside clock 19.66 MHz/ Inside clock 39.32 MHz

• 8KBRAM built-in

• Various DMA

• A/D converter

Approximately 21000 gates, QFP 160 pin

• Bit manipulation

• Clock control

• interface control (IEEE1284/Type-B I/F)

• Input Buffer control

• Motor control

• Head control

PROM IC7

4M / 8Mbit, DIP 40 / 42 pin

• Stores firmware

•CG

DRAM IC8

1/2/4M bit switching method, SPJ package 40 pin

• Various buffer, work area

EEPROM IC5

AT93C46, 1kbit, SOP 8pin

• Stores default value and various parameter

RESET IC IC4

M62030 (SANYO), 8 pin

• CPU and G/A reset

CR Motor Driver IC9 LB1847 (SANYO)

PF Motor Driver IC10 LB1847 (SANYO)

Serial I/F

Transceiver

IC2 HIN202CBN or equivalent

Regulator IC IC11

BA033 (ROHM) or equivalent

• Generates 3.3V logic voltage

Regulator IC IC12

PD494 or equivalent

• 95V rated voltage circuit

• Detects over voltage (over 150V) and sends OFF signal to the power supply boards.

Thermistor TH1 Measures temperature of the motor driver.

Table 2-16. Power Supply Boards Input Voltage Specifications

Circuit Input voltage Fuse specification

C294PSB 99 - 132VAC ULTSC-2.5A-NI

C294PSE 198 - 264VAC HT 1.25A

Table 2-17. Output Voltage and its Use

Output voltage Use

35 V +5%/ -10% Drive

5 V ± 5% Logic Voltage*

Table 2-15. Main Elements (continued)

Elements Location Function

Page 56

CHAPTER

TROUBLESHOOTING

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Troubleshooting Overview 57

3.1 Overview

This chapter describes how to troubleshoot problems if any problems occur with the printer. Refer to troubleshooting flowcharts in this chapter to identify a defective part and an appropriate repair for it.

Figure3-1. Troubleshooting Procedure

W A R N I N G

 Never touch printhead and any motors right after printing

since they are highly heated.

 When disassembling the printer, be sure to disconnect the

power cable and remove the interface cable.

C A U T I O N

 Be sure to use specified tools for servicing to maintain the

quality.

 Make sure to apply specified oil, grease and glue.  Perform adjustment as specified.

Troubleshooting

Initialization

Check

Does any

trouble occur?

Identify problems from

symptoms.

Perform

maintenance.

Check performance by self-

check function.

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Troubleshooting Troubleshooting 58

3.2 Troubleshooting

3.2.1 Initialization Check

Before troubleshooting, check the following basic items.

1. When the printer can perform printing, perform self-test and check if any troubles occur.

2. When the printer cannot perform any printing, check the setting by “Default Setting”. (Refer to Chapter 1.)

3. Check if the outside and inside the printer is noticeably dirty or if any parts are broken. If there is dirt, perform cleaning referring to Chapter 6 “Maintenance”.

4. Make sure each harness is connected properly.

5. Make sure there is no remarkable friction among printer mechanism gears. Make sure all gears are linked properly.

6. Make sure there is no dirt nor scratch on rollers inside the printer.

7. Perform EEPROM clear as needed. Inside setting is reset to the factory default setting. (Refer to Chapter 1.)

3.2.2 Check Performance By Self-Check Function

LX-300+II has self-check function, which supervises the printer condition constantly. If any problem occurs, it indicates an error occurrence by indicator LED and in some cases it notifies the operator of the error occurrence by beeping the buzzer. Identify the error cause, referring to the indication first. If the error is not corrected, perform unit repair.

3.2.2.1 Indicator LED

The table below shows the indicator LED and the printer condition.

 Paper Out Error

This error will be indicated when printer fails to feed paper or paper is run out.



Solution Set paper properly and try paper feed again.

Table 3-1. Indicator LED

Printer Condition Pause Paper Out Front Buzzer

Pause ON - - -

Paper Out Error ON ON - Shoot beep x3

Release Lever Error ON - - Long beep x5

Paper Eject Warning ON BLINK - -

MICRO Adjust BLINK - - -

Tear Off - -

According to LED On/Off combination

Font Select - -

According to LED On/Off combination

Fatal Error BLINK BLINK BLINK -

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Troubleshooting Troubleshooting 59



Release Lever Error This error will be indicated when wrong release lever operation is performed. For example, if you change the release lever setting when the printer already starts feeding paper, this error will be generated.



Solution Reset the release lever.

 Fatal Error

This error will be indicated when;

-carriage error has occurred

-input voltage is abnormal

-hardware problem has occurred



Solution If it is carriage error, check if there is no obstacles for carriage to move. If it is input voltage problem, check power supply voltage. If it is hardware problem, check machine and electric circuit.

3.2.3 Identify Problems From Symptoms

This section describes the procedure for identifying the problems from the abnormal symptoms. Basically unit repair or replacement should be performed, but if necessary parts level replacement should be performed.

Find your symptom in the table below and check the corresponding table.

Table 3-2. Symptoms and Solutions

Symptom Problems Check Table

When power is applied, the printer does not operate.

Control panel LED does not operate at all.

Table 3-3 on page 60

Printer mechanism does not operate at all.

Table 3-4 on page 60

When power is applied, the printer becomes fatal error.

• Control panel indicates fatal error.

• The printer indicates error after initialization.

Table 3-5 on page 60

Self-test print is abnormal.

• Platen gap is not correct.

• Printhead or ribbon mask is abnormal or their life is over.

• Vertical direction printing quality is abnormal.

Table 3-6 on page 61

Paper feed is abnormal.

• Paper feed operation is not performed.

• Paper switching is abnormal.

• Line feed is not equal.

• Skew is generated.

Table 3-7 on page 61

Control panel and switches do not operate properly.

• LED indication is abnormal.

• Cannot input from switches.

Table 3-8 on page 61

Printing operation is abnormal when it is online.

• Self-test is normal, but the printing from host computer is abnormal.

Table 3-9 on page 62

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Troubleshooting Troubleshooting 60

Table 3-3. Control Panel LED Does Not Light On.

Cause Check Point Y/N Solution

Blowout of a fuse on the power board.

Is a fuse on the power board blown out?

YES

Check the electric circuit and printer mechanism. If there is no short circuit, replace the fuse.

Connector is not connected to the power board.

Are connectors connected to the power board properly?

NO Replace the power board.

Power switch is defective.

Is conductivity of the switch is OK?

YES Replace the power board.

Power board is defective.

Are +5VDC and +35VDC OK when the power is on?

NO Replace the power board.

Power board and the main board are not connected properly.

Is CN8 connected properly?

NO Connect CN8 properly.

Main board is defective.

- - Replace the main board.

Control panel harness is not connected properly.

Is the harness of the control panel connected properly?

NO Connect the harness properly.

Control panel board or harness is defective.

- - Replace the control panel.

Table 3-4. Printer Mechanism Does Not Operate.

Cause Check Point Y/N Solution

Any of CN3 to CN12 is not connected to the main board properly.

Are all connectors connected properly?

NO Connect them properly.

Main board is defective.

- - Replace the main board.

Printer mechanism is defective.

- - Replace the printer mechanism.

Table 3-5. When Power is Applied, the Printer Becomes Fatal Error.

Cause Check Point Y/N Solution

Carriage home position error (CR Error=30H)

Are CR motor, timing belt, and CR home position sensor normal?

YES

Replace the power supply circuit board.

NO Replace the defective component.

CG access error (CG Error=32H)

Is main board normal?

YES

See Table 3-10, “Electrical Noise is Caused.,” on page 62.

NO Replace the main board.

Abnormal printhead voltage (Head Low Volt Error=33H)

Is printhead voltage (+42V line) normal?

YES Replace the printhead.

NO Replace the power supply board.

Abnormal printhead temperature (Head Open Error=3AH)

Is the printhead connected to the main board properly?

YES Replace the printhead.

NO Connect the FFC properly.

CR motor harness is not connected properly.

Is CR motor harness CN10 connected properly?

NO Connect it properly.

CR motor is defective. - - Replace the CR motor.

HP detector harness is not connected properly

Is HP detector harness CN3 connected properly?

NO Connect it properly.

HP detector is defective.

- - Replace the HP detector.

Power board is defective.

Is power voltage normal?

NO Replace the power board.

- - -

Replace the main board and printer mechanism.

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Table 3-6. Self Test Print is Abnormal.

Cause Check Point Y/N Solution

Any of CN3 to CN12 is not connected to the main board properly.

Are all connectors connected properly?

NO Connect them properly.

Printhead driver is defective.

- - Replace the main board.

Bi-d is not correct.

Are rows aligned properly when bidirectional printing is proceeded?

NO Adjust Bi-D.

Printhead is defective.

Is there any dot missing?

YES Replace the printhead.

Head FFC is not connected properly or broken.

- YES Replace the head FFC.

Platen gap is not correct.

Is printing too light / weak?

YES Adjust the platen gap.

Is there any dirt on printed documents?

YES Adjust the platen gap.

Ribbon mask is defective.

Is there any dirt on printed documents?

YES Replace the ribbon mask.

Ribbon mechanism is defective.

Is ribbon advanced properly?

NO Replace the ribbon mechanism parts.

Printer mechanism is defective.

- - Replace the printer mechanism.

Table 3-7. Paper Feed is Abnormal.

Cause Check Point Y/N Solution

RPE detector or BPE detector is defective or not connected properly.

Check the sensors. Is there any abnormality?

NO Replace the sensor.

YES

Check the connection to the main board.

Paper switching mechanism is defective.

Switch the release lever. Is the paper loading direction switched?

Replace the printer mechanism or check the connection.

Can the release lever be switched?

Replace the release sensor or check the connection.

Printer mechanism paper loading mechanism is defective.

When the power is off, can the printer feed paper by rotating the platen knob manually?

Replace the printer mechanism or paper loading mechanism parts.

PF motor is defective. Is PF motor normal? NO Replace the PF motor.

PF motor driver is defective.

- - Replace the main board.

Table 3-8. Control Panel and Switches Do Not Operate.

Cause Check Point Y/N Solution

Switch is defective.

Is conductivity of the switch is OK?

NO Replace the control panel.

Connect the control panel harness.

Control panel harness is connected properly?

NO Connect it properly.

Control panel board is defective or the harness is defective.

- - Replace the control panel.

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Table 3-9. Printing Operation is Abnormal When it is On-Line.

(Self-Test is Normal.)

Cause Check Point Y/N Solution

Initial setting is wrong.

Check the initial setting with the default setting. Is it OK?

Reset the setting or use the EEPROM clear to reset setting to the default.

Interface cable is not connected properly.

Are cables connected properly?

NO Connect them properly.

Interface cable is defective.

- - Replace the interface cable.

Main board is defective.

- - Replace the main board.

Firmware is defective.

Is the firmware version latest?

NO Update the firmware.

Table 3-10. Electrical Noise is Caused.

Cause Check Point Y/N Solution

External noise

Is there another electrical apparatus, such as a generator, radio transmitter or an apparatus incorporating a motor within 3 m from the printer?

YES

Turn off the power to the electrical apparatus or move the printer to a position at least 6m distant from the apparatus.

AC cable is not connected properly

Is the AC power cable connected and ground properly?

Connect and ground the cable properly.

Harness of power switch is not grounded properly

Is the harness of the power switch grounded properly?

NO Ground the harness properly.

Circuit board is not grounded properly

Is the circuit board connected and grounded properly?

Ground and connect the circuit board properly.

Power supply board is defective

Is the power supply board normal?

NO Replace the power supply board.

Main board is defective

Is the main board normal?

NO Replace the main board.

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3.2.4 Unit and Parts Check

This section describes the checking method of the printhead, motors and sensors to find the defective units and parts.

3.2.4.1 Printhead Check

By measuring the direct current resistance of the printhead coil, you can check if it is all right.

Figure3-2. Head Coil Pin No.

3.2.4.2 Motor Check

By measuring the direct current resistance of the motor coil, you can check if the motor is all right.

W A R N I N G

When repairing the unit, make sure to turn the printer off and plug off the power cable except when this manual specifies to keep the power on.

Table 3-11. Printhead Coil Resistance

Item Operation Specification

Printhead

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to C.

3. Connect the other side of the probe to corresponding head pin No.

33.3 ± 3.3Ω (at 25°C/phase)

Looked From Point A

Table 3-12. Motor Check

Item Operation Specification

CR motor

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to pin 1 or 2.

3. Connect the other side of the probe to pin 3 or 4.

4.5Ω ±10%

(at 25°C/phase)

PF motor

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to pin 1 or 2.

3. Connect the other side of the probe to pin 3 or 4.

LX-300+II:

12.0Ω ±10%

LX-1170II:

10.6Ω ±10%

(at 25°C/phase)

CS motor (option,

LX-300+II only)

1. Disassemble the CS unit.

2. Set the multimeter to the resistance measuring range.

3. Connect the one side of the probe to brown [TBD] harness.

4. Connect the other side of the probe to other 4 harness.

150Ω ± 5%

(at 25°C/phase)

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3.2.4.3 Sensor Check

When the sensor is connected mechanically, you can check the sensor by its conductivity.

3.2.4.4 Printhead Driver Check

Simple check of the printer driver (Q3 ~ Q11) can be done by the following method.

Table 3-13. Sensor Check

Item Operation Specification

HP detector

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to

pin 1 of CN3.

3. Connect the other side of the probe to

pin 2 of CN3.

When switching the sensor actuator, it should be switched ON/OFF.

RPE detector

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to

pin 1 of CN4.

3. Connect the other side of the probe to

pin 2 of CN4.

When switching the sensor actuator, it should be switched ON/OFF.

Release detector

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to

pin 1 of CN5.

3. Connect the other side of the probe to

pin 2 of CN5.

When switching the sensor actuator, it should be switched ON/OFF.

BPE detector

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to

pin 1 of CN6.

3. Connect the other side of the probe to

pin 2 of CN6.

When switching the sensor actuator, it should be switched ON/OFF.

PG detector

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to

pin 7 of CN3.

3. Connect the other side of the probe to

pin 7 of CN3.

When switching the sensor actuator, it should be switched ON/OFF.

Table 3-14. Printhead Driver Check

Item Operation Specification

Printer driver

(Q3~ Q11)

1. Set the multimeter to the resistance measuring range.

2. Connect the one side of the probe to the

base of the transistor.

3. Connect the one side of the probe to

emitter of the transistor.

The resistance should NOT be “0” or infinity.

Page 65

CHAPTER

DISASSEMBLY AND ASSEMBLY

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4.1 Overview

This chapter explains the disassembly and assembly of LX-300+II/1170II. Read the precautions below before disassembling and assembling the printer.

4.1.1 Precautions

See the precautions given under the handling “WARNING” and “CAUTION” in the following column when disassembling or assembling the product.

4.1.2 Tools

The table below lists the tools recommended to use for disassembly and assembly and adjustment. Use only tools specified here.

NOTE: All tools are available on the market.

NOTE: Only component level repairing service requires oscilloscope.

W A R N I N G

 Disconnect the power cable before disassembling or assembling

the printer.

 Never touch the printer right after it finishes printing, for the

printhead is highly heated.

 If you need to work on the printer with power applied, strictly

follow the instructions in this manual.

 Always wear gloves for disassembly and reassembly to avoid

injury from sharp metal edges.

 To protect sensitive microprocessors and circuitry, use static

discharge equipment, such as anti-static wrist straps, when accessing internal components.

C A U T I O N

 Use only recommended tools for disassembling, assembling or

adjusting the printer.

 Observe the specified torque when tightening screws.  Apply lubricants and adhesives as specified.  Make the specified adjustments when you disassemble the

printer. (See Chapter 5 for details.)

 When performing an adjustment, follow the method described

in this manual.

 When using compressed air products, such as air duster, for

cleaning during repair and maintenance, the use of such products containing flammable gas is prohibited.

Table 4-1. Recommended Tools-1

Tools Part No.

Needle-nose pliers B740400100

Nipper B740500100

Tweezers B741000100

Soldering bit B740200100

E ring holder #2.5 B740800400

+ driver No.2 B743800200

Box driver (opposite side distance: 7mm) B741700200

Thickness gauge B776702201

Table 4-2. Recommended Tools-2

Device Specification

Multimeter -

Oscilloscope 50MHz

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Table 4-3. List of Screws

Screw Name Screw Name

C.B.P., Tite, 3x10 F/ZN C.P., Screw, 3x4 F/ZN

C.P.B., Screw, 3x14 F/ZN C.B(O), Screw, 4x8 F/ZN

C.B.S., Screw, 3x4 F/Zn Jack Socket

C.B.B., (W(13), 3x14 F/ZN

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4.1.3 Service Checks After Repair

Before returning the printer back to the user, use the check list below to confirm the quality of the repaired printer.

Table 4-4. Check List for Repaired Printer

Category Component Item to Check Check

Printer

Mechanism

Printhead

Is dot missing? OK NG

Are any wires broken? OK NG

Carriage mechanism

Does carriage move smoothly?

CR movement is not noisy?

CR mechanism is not dirty?

CR mechanism is not oily?

OK NG

Is the CR motor assembly at the correct temperature? (Not overheating?)

OK NG

Paper feed mechanism

Is paper advancing smoothly?

PF movement is not noisy?

PF mechanism is not dirty? PF mechanism is not oily?

OK NG

Is the PF motor assembly at the correct temperature? (Not overheating?)

OK NG

Paper path

Are all the types of paper fed smoothly?

OK NG

Does the tractor feed paper smoothly? OK NG

Is the paper path clear of obstructions? OK NG

Is the platen free of damage? OK NG

Ribbon mask Is the ribbon mask free of distortion? OK NG

Test printing Is the test printing successful? OK NG

Online printing

Is the online printing successful? OK NG

Adjustment

Printhead

Is the platen gap adjusted correctly? OK NG

Is Bi-d adjustment value correct? OK NG

Initial setting

Have all user changeable settings been reset to the default values?

OK NG

Version Up ROM version Latest ROM version ________ OK NG

Transportation

Ink ribbon Is ribbon removed? OK NG

Accessories

Are all the relevant parts included in the shipment?

OK NG

Table 4-4. Check List for Repaired Printer (continued)

Category Component Item to Check Check

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4.2 Disassembly and Assembly

This section explains the disassembly and assembly of LX-300+II/LX-1170II. Unless otherwise specified, assembly can be done in the reverse order of the disassembly procedure.

Anything that service person should pay attention to is described under “Check Point”. Any adjustment required after assembly is described under “Adjustment”.

When you have to remove parts that are not described in this chapter, refer to the exploded diagram on Appendix of this manual.

The figure below is the disassembly flowchart for main component.

Flowchart 4-1. Disassembly Flowchart (Main Component)

C A U T I O N

 Read 4.1.1 “Precautions” before start disassembling the

printer.

 Remove ink ribbon and paper before disassembling the

printer.

4.2.2 “Upper Housing Unit Removal”

4.2.1 “Printhead Unit Removal”

4.2.4 “Panel Board

Assembly Removal”

4.2.3 “Printer Mechanism Removal”

4.2.6 “P/S Board Assembly Removal”

4.2.5 “Main Board

Assembly Removal”

START

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4.2.1 Printhead Unit Removal

1. Remove the cover of the printer.

2. Remove 1 screw (C.P.B., Screw, 3x14 F/ZN; Torque 0.59-0.78N.m) securing the printhead to the carriage assembly.

3. Lift the printhead a little bit. Unlatch 2 hooks securing the printhead FFC to carriage unit.

4. Remove FFC from the printhead.

Figure4-1. Printhead Removal

C A U T I O N

Check if the printer is powered off before removing the printhead.

A D J U S T M E N T

R E Q U I R E D

When the printhead unit is removed or replaced, perform the platen gap adjustment and Bi-D adjustment.

Carriage Assembly

Printhead

C.P.B., Screw, 3x14 F/ZN

FFC

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4.2.2 Upper Housing Unit Removal

1. Remove the platen knob, cover assembly, printer, tractor unit and paper eject unit. Remove the color upgrade kit if it is installed (LX-300+II only).

2. Set the release lever to the tractor feed.

3. Remove 4 screws for LX-300+II and 6 screws for LX-1170II (CBP, Tite, 3x10 F/Zn, Torque 0.78-0.98) securing the upper housing to the lower housing.

4. .Remove the upper housing.

Figure4-2. Upper Housing Removal

Upper Housing

CPB (3x10)

C.B.P., Tite, 3x10 F/ZN

C H E C K

P O I N T

When installing the upper housing, be sure to insert LEDs on the panel board into the LED holes of the upper housing.

Upper Housing

LED

Panel Board Assembly

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4.2.3 Printer Mechanism Removal

1. Remove the upper housing. (See 4.2.2 “Upper Housing Unit Removal”.)

2. LX-300+II: Remove 3 screws (C.B.P., Tite, 3x10 F/ZN;Torque 0.78-0.98 N.M.)

securing the upper shield plate to the lower housing.

LX-1170II: Remove 4 screws (C.B.P., Tite, 3x10 F/ZN; Torque 0.78-0.98 N.M.)

and 2 screws (C.B.S., Screw, 3x4 F/Zn;Torque 0.78-0.98 N.M.) securing the upper shield plate to the lower housing.

3. Remove the shield cover.

Figure4-3. Upper Shield Plate (LX-300+II)

4. LX-300+II: Remove 2 screws with washers (C.B.B., (W(13), 3x14 F/ZN)

securing the printer mechanism to the lower housing. See Figure 4-3 on page 72.

LX-1170II: Remove 4 screws with washers (C.B.B., (W(13), 3x14 F/ZN)

securing the printer mechanism to the lower housing. See Figure 4-4 below.

Figure 4-4. Printer Mechanism Removal (LX-1170II)

Upper Shield Plate

C.B.P., Tite, 3x10 F/ZN)

Printer Mechanism

C.B.B., (W(13), 3x14 F/ZN

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5. Lift the printer mechanism a little bit and remove the harnesses from the main board assembly.

Figure4-5. Harness Removal

6. Remove the printer mechanism.

4.2.4 Panel Board Assembly Removal

1. Remove the upper housing. (See 4.2.2 “Upper Housing Unit Removal”.)

2. Disconnect the panel FFC from the connector of the panel board assembly.

3. Remove 3 screws (C.B.P., Tite, 3x10 F/ZN; Torque 0.78-0.98 N.M.) securing the panel board assembly to the lower housing.

4. Remove the panel board assembly from the lower housing.

Figure4-6. Panel Board Assembly Removal

A D J U S T M E N T

R E Q U I R E D

When the printer mechanism is removed, perform the Bi-D adjustment. When the printer mechanism is replaced, perform the Bi-D adjustment, top margin adjustment, and bottom margin adjustment.

Printer Mechanism

Main Board Assembly

Panel Board Assembly

C.B.P., Tite, 3x10 F/ZN

Panel FFC

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4.2.5 Main Board Assembly Removal

1. Remove the upper housing. (See 4.2.2 “Upper Housing Unit Removal”.)

2. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

3. LX-1170II: Remove 1 screw (C.B.P., Tite, 3x10 F/ZN; Torque 0.78-0.98 N.M.) and the right grounding plate.

Figure 4-7. Right Grounding Plate Removal (LX-1170II)

4. Remove 2 Jack Sockets (Torque 0.29-0.49 N.M.) securing the serial interface

connector to the lower shield plate.

5. Remove the serial interface connector from the installation hole of the lower shield

plate.

6. Remove 2 screws (C.P., Screw, 3x4 F/ZN; Torque 0.48-0.78 N.M.) securing the

parallel interface to the lower shield plate.

7. Disconnect the option FFC (LX-300+II only) and panel FFC from CN12 and CN13 on

the board.

8. Disconnect the harness connected to the Power Supply Board Assembly from CN8.

Press one edge of CN8 in order to remove or install the harness.

9. Remove 3 screws (C.B.P., Tite, 3x10 F/ZN) securing the main board assembly to the lower housing.

Figure4-8. C640/641MAIN Board Assembly Removal

Grounding Plate, Right

C.B.P., Tite, 3x10 F/ZN

A D J U S T M E N T

R E Q U I R E D

When the main board assembly is replaced, perform the destination setting, Bi-D adjustment, top margin adjustment, and bottom margin adjustment.

Main Board Assembly

CN8

C.B.P., Tite, 3x10 F/ZN

Lower Shield Plate

CN13

CN12

C.P., Screw, 3x4 F/ZN

Hexagon Nut

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4.2.6 P/S Board Assembly Removal

1. Remove the upper housing. (See 4.2.2 “Upper Housing Unit Removal”.)

2. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

3. LX-300+II: Remove 1 screw(C.B.P., Tite, 3x10 F/ZN;Torque 0.78-0.98 N.M.) and the left grounding plate.

4. LX-1170II: Remove 1 screw (C.B(O), Screw, 4x8, F/ZN; Torque 0.98-1.18 N.M.) and the grounding cable.

Figure 4-9. Ground Plate and Cable Removal (LX-1170II)

5. Remove the power cable (CN1) connecting to the Power Supply board assembly.

Remove the power switch from the lower housing.

6. Disconnect the harness connecting the Power Supply board assembly to the main board

assembly. (CN8 of the main board assembly) Press one edge of CN8 in order to remove or install the harness.

7. Remove 4 screws (C.B.P., Tite, 3x10 F/ZN; Torque 0.78-0.98 N.M.) securing the

Power Supply board assembly to the lower housing.

8. Remove the Power Supply board assembly.

Figure4-10. Power Supply Board Assembly Removal

C.B(O), Screw, 4x8 F/ZN

Grounding Plate, Left

Grounding Cable

C.P., Screw, 3x4 F/ZN

Power Switch

P/S Board Assembly

CN1

C.B.P., Tite, 3x10 F/ZN

CBP (3x10)

C.B.P., Tite, 3x10 F/ZN

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4.2.7 Printer Mechanism Disassembly

This section explains the disassembling procedure of the printer mechanism. The disassembling procedure is shown in the flowchart below.

Figure4-11. Printer Mechanism Disassembling Procedure

4.2.7.1 CR Motor Mechanism Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Remove the tension spring, 8.10 and motor bracket and release the tension of the timing belt.

3. Remove the timing belt from the pulley of the CR motor assembly.

4. Rotate the CR motor assembly with the motor bracket clockwise to remove it.

Figure4-12. CR Motor Assembly Removal

START

4.2.7.10 “PF Motor

Assembly Removal”

4.2.7.2 “Platen

Mechanism Removal”

4.2.7.9 “Release Lever

Position Sensor Removal”

4.2.7.1 “CR Motor

Mechanism Removal”

4.2.7.3 “Carriage

Mechanism Removal”

4.2.7.4 “Ribbon Feed

Mechanism Removal”

4.2.7.5 “RPE Sensor Removal”

4.2.7.7 “HP Sensor Removal”

4.2.7.6 “BPE Sensor Removal”

4.2.7.8 “PG Sensor Removal”

4.2.7.11 “Paper Feed

Mechanism Disassembly”

4.2.7.12 “Paper Guide Removal”

A D J U S T M E N T

R E Q U I R E D

When the CR motor mechanism is removed or replaced, perform the platen gap adjustment and Bi-D adjustment.

Timing Belt

CR Motor Assembly

Base Frame

Tension Spring, 8.10

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4.2.7.2 Platen Mechanism Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Remove the platen grounding wire from the platen.

3. Release 1 hook at the rotating hole of the combination gear 17.5, 27 and remove the gear from the right frame.

Figure4-13. Hook at the Combination Gear 17.5, 27

4. Rotate right and left bushing, 11 and remove them off from the right / left frame.

5. Remove the platen.

Figure4-14. Platen Removal

To unhook the combination gear 17.5, 27, hold it and pull it in the arrow direction.

Combination gear, 17.5, 27

Gear, 34

A D J U S T M E N T

R E Q U I R E D

When the platen mechanism is removed or replaced, perform the platen gap adjustment.

Bushing, 11

Platen

Gear, 34

Platen grounding wire

Combination gear, 17.5, 27

Right frame

Left frame

Bushing, 11

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4.2.7.3 Carriage Mechanism Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Remove the printhead. (See 4.2.1 “Printhead Unit Removal”.)

3. Remove the timing belt from the carriage installation point.

Figure4-15. Timing Belt Removal

4. Remove the CR shaft grounding plate from the base frame on the left side of the printer.

Figure4-16. Carriage Unit Removal

5. Rotate the right and left parallelism adjust bushing and remove them from the respective frames.

6. Release the PG adjust lever hook, connecting to the left frame.

Carriage Unit

Timing Belt

Installation Point

PG adjust lever

CR guide shaft

Carriage unit

Right frame

CR guide grounding plate

Left frame

Base frame

Parallelism adjust bushing

Oil pad

Parallelism adjust bushing

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Figure4-17. Hook at the PG Adjust Lever

7. Remove the carriage unit along with the CR guide shaft and PG adjust lever from the printer mechanism.

4.2.7.4 Ribbon Feed Mechanism Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Remove the tension spring, 8.10 from the motor bracket and release the tension of the timing belt. (See 4.2.7.1 “CR Motor Mechanism Removal”.)

3. Release 3 hooks securing the RD cover to the left frame.

4. Remove the RD cover.

Figure4-18. Ribbon Feed Mechanism Removal

A D J U S T M E N T

R E Q U I R E D

When the carriage mechanism is removed or replaced, perform the platen gap adjustment and Bi-D adjustment.

PG Adjust Lever -- Hook

A D J U S T M E N T

R E Q U I R E D

When the ribbon feed mechanism is removed or replaced, perform the platen gap adjustment and Bi-D adjustment.

Left frame

Driven pulley assy.

RD ratchet

Gear, 13.2

Base frame

RD cover

Planetary lever assy.

Timing belt

Combination gear, 51, 16.2

Timing belt

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4.2.7.5 RPE Sensor Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Release the hook of the RPE sensor installed at the paper guide.

3. Remove RPE sensor.

4. Disconnect the harness from the RPE sensor (white).

Figure4-19. RPE/BPE Sensor Removal

4.2.7.6 BPE Sensor Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Release the hook of the BPE sensor installed at the paper guide.

3. Remove BPE sensor.

4. Disconnect the harness from the BPE sensor (yellow).

4.2.7.7 HP Sensor Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Release 2 hooks of the HP sensor securing it to the base frame with tweezers and remove the sensor.

3. Disconnect the harness from the sensor (black).

Figure4-20. HP Sensor Removal

A D J U S T M E N T

R E Q U I R E D

When the RPE sensor is removed or replaced, perform the platen gap adjustment, Bi-D adjustment, top margin adjustment, and bottom margin adjustment.

RPE sensor (white)

Paper guide

BPE sensor (yellow)

A D J U S T M E N T

R E Q U I R E D

When the BPE sensor is removed or replaced, perform the platen gap adjustment, Bi-D adjustment, top margin adjustment, and bottom margin adjustment.

Base frame

HP sensor (black)

Hook

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Disassembly and Assembly Disassembly and Assembly 81

4.2.7.8 PG Sensor Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Release 2 hooks of the PG sensor securing it to the left frame with tweezers and remove the sensor.

3. Disconnect the harness from the sensor (white).

Figure4-21. PG Sensor Removal

4.2.7.9 Release Lever Position Sensor Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Release 2 hooks of the release lever position sensor securing it to the right frame with tweezers and remove the sensor.

3. Disconnect the harness from the sensor (blue).

Figure4-22. Release Lever Position Sensor Removal

A D J U S T M E N T

R E Q U I R E D

When the PG sensor is removed or replaced, perform the platen gap adjustment and Bi-D adjustment.

Left frame

PG sensor (white)

Hook

C A U T I O N

When installing the release lever position sensor, be sure to insert it between the release lever and the right frame.

A D J U S T M E N T

R E Q U I R E D

When the release lever position sensor is removed or replaced, perform the platen gap adjustment and Bi-D adjustment.

Release lever position sensor (blue)

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Disassembly and Assembly Disassembly and Assembly 82

4.2.7.10 PF Motor Assembly Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Remove the platen grounding wire from the platen.

3. Remove 1 screw (C.B.P., Tite, 3x10 F/ZN; Torque 0.59-0.78 N.M.) securing the PF motor assembly to the right frame.

4. Release 1 hook at the right frame securing the PF motor assembly to the right frame and remove the PF motor assembly.

Figure4-23. PF Motor Assembly Removal

4.2.7.11 Paper Feed Mechanism Disassembly

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Remove the PF motor assembly. (See 4.2.7.10 “PF Motor Assembly Removal”.)

3. Remove the release lever.

Figure4-24. Release Lever Removal

4. Release the hook of the right frame securing the gear, 27.5 and remove the gear, plain washer 5.2x0.3x10 and the compression spring, 1.18.

C H E C K

P O I N T

When installing the PF motor assembly to the right frame, be careful to align the positioning pins with the respective positioning holes in the motor bracket.

A D J U S T M E N T

R E Q U I R E D

When the PF motor assembly is removed or replaced, perform the platen gap adjustment, Bi-D adjustment, top margin adjustment, and bottom margin adjustment.

Platen grounding wire

PF motor assembly

C.B.P., Tite, 3x10 F/ZN

Hook at the right frame

Positioning pins

C H E C K

P O I N T

When installing the release lever, be sure to align the marking on the release lever with the marking on the release shaft.

Release shaft

Release lever

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Disassembly and Assembly Disassembly and Assembly 83

5. Remove the combination gear, 8.5, 25.2 from the right frame.

Figure4-25. Paper Feed Mechanism Disassembly

4.2.7.12 Paper Guide Removal

1. Remove the printer mechanism. (See 4.2.3 “Printer Mechanism Removal”.)

2. Remove the platen. (See 4.2.7.2 “Platen Mechanism Removal”.)

3. Remove the carriage unit. (See 4.2.7.3 “Carriage Mechanism Removal”.)

4. Remove the HP sensor. (See 4.2.7.7 “HP Sensor Removal”.)

5. Remove the PG sensor. (See 4.2.7.8 “PG Sensor Removal”.)

6. Remove the PF motor assembly and release lever. (See 4.2.7.10 “PF Motor Assembly Removal”.)

7. Release 1 hook securing the paper guide to the bottom of the paper guide to the lower paper guide, pull the paper guide to the rear and remove it.

Figure4-26. Lower Paper Guide Removal

A D J U S T M E N T

R E Q U I R E D

When the paper feed mechanism is removed or replaced, perform the platen gap adjustment, Bi-D adjustment, top margin adjustment, and bottom margin adjustment.

Hook at the right frame

Combination gear, 8.5, 25.2

Combination spring, 1.18

Plain washer, 5.2 x 0.3 x 10

Gear, 27.5

Hook at the left frame

Lower paper guide

Paper guide

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Disassembly and Assembly Disassembly and Assembly 84

8. Release 1 hook at the left frame securing the base frame and remove it by pulling it to the rear.

Figure4-27. Left Frame Removal

9. Release 1 hook securing the paper guide to the lower paper guide and remove the paper guide along with the release shaft by pulling it to the left.

Figure4-28. Lower Paper Guide

Hook at the left frame

Base frame

Hook at the paper guide

A D J U S T M E N T

R E Q U I R E D

When the paper guide is removed or replaced, perform the platen gap adjustment, Bi-D adjustment, top margin adjustment, and bottom margin adjustment.

Page 85

CHAPTER

ADJUSTMENT

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Adjustment Adjustment Tool 86

5.1 Adjustment Tool

With the Adjustment Tool for SIDM, you can perform:

 Get Printer Information

 PG Adjustment

 Bi-d Adjustment

 Top Margin Adjustment

 Bottom Margin Adjustment

 Print Test

You can also use the following additional functions:

 Get Counter information

 EEPROM read/write

 Printer Initial Setting

 Firmware Update

 Get Fatal Error Code

5.1.1 System Requirement

 PC:

Windows-based PC equipped with a parallel and a USB interface

 OS:

Windows 2000 Professional Edition SP3

Windows XP Professional Edition SP1

Windows98 SE

5.1.2 Running the Program

Start up the Adjustment Tool for SIDM, and you will see the following screen.

Figure 5-1. Adjustment Tool for SIDM

Select a printer, port, and customer from the pull-down menu, and then you can select either one of the two modes, Sequential adjustment mode and Particular adjustment mode.

 Sequential adjustment mode:

This mode is specifically designed to assist repair/service technician; to perform all necessary adjustment/settings in proper order. A wizard like menu helps you to perform necessary adjustment in accordance with the type of repair you made.

 Particular adjustment mode:

This mode is useful if specific adjustment item or setting needs to be performed individually. All available adjustment or setting item can be selected manually and can be performed independently.

Click either one of the two buttons to start the mode you selected.

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Adjustment Adjustment Tool 87

5.1.2.1 Sequential adjustment mode

When you select the Sequential adjustment mode, the following screen will appear.

Figure 5-2. Sequential adjustment mode

Check the checkbox for one or more parts that you removed or replaced, and click the OK button.

An adjustment screen will appear as shown below. All the necessary adjustments will be shown on the left.

Figure 5-3. Adjustment screen

Follow the instruction shown on the screen to perform the adjustment. When you have performed one adjustment, a next adjustment screen will appear. Perform all the necessary adjustments.

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Adjustment Adjustment Tool 88

5.1.2.2 Particular adjustment mode

When you select the Particular adjustment mode, the following screen will appear.

Figure 5-4. Particular adjustment mode

Select an adjustment or additional function you want to perform, and click the OK button.

An adjustment or additional function screen will appear as shown in the Figure 5-3. Follow the instruction shown on the screen to perform the adjustment or additional function.

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Adjustment Adjustments 89

5.2 Adjustments

5.2.1 Platen Gap Adjustment

Perform the platen gap adjustment when you have performed any of the following:

 Removing or replacing the printhead unit (See page 70.)

 Removing or replacing the CR motor mechanism (See page 76.)

 Removing or replacing the platen mechanism (See page 77.)

 Removing or replacing the carriage mechanism (See page 78.)

 Removing or replacing the ribbon feed mechanism (See page 79.)

 Removing or replacing the RPE sensor (See page 80.)

 Removing or replacing the BPE sensor (See page 80.)

 Removing or replacing the PG sensor (See page 81.)

 Removing or replacing the release lever position sensor (See page 81.)

 Removing or replacing the PF motor assembly (See page 82.)

 Removing or replacing the paper feed mechanism (See page 82.)

 Removing or replacing the paper guide (See page 83.)

Follow the steps below to perform the platen gap adjustment.

1. Remove the upper housing. (See page 71.)

2. Set the PG adjust lever to “0.”

3. Remove the printhead and remove the ribbon mask.

4. Re-install the printhead.

5. Follow the procedure in the flowchart below for the adjustment.

Figure 5-5. Platen Gap Adjustment

Platen Gap Setting Judging Method

0415 ± 0.015mm

Thickness gauge 0.40mm falls down by its own weight: OK

Thickness gauge 0.43 mm does NOT fall down by its own weight: NG

Rotational direction of the parallelism adjust bushing Platen gap

Platen side Widen

Front side Narrowed

START

Move the carriage unit to the

left end.

Move the carriage unit to the

right end.

Is the platen gap

within the range of the

setting?

Move the carriage unit to the

center.

Adjust the platen gap at the

left end.

Adjust the platen gap at the

right end.

END

Is the platen gap

within the range of the

setting?

Is the platen gap

within the range of

the setting?

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Adjustment Adjustments 90

5.2.2 Bi-D Adjustment

Perform the Bi-D adjustment when you have performed any of the following:

 Removing or replacing the printhead unit (See page 70.)

 Removing or replacing the printer mechanism (See page 72.)

 Replacing the main board assembly (See page 74.)

 Removing or replacing the CR motor mechanism (See page 76.)

 Removing or replacing the carriage mechanism (See page 78.)

 Removing or replacing the ribbon feed mechanism (See page 79.)

 Removing or replacing the RPE sensor (See page 80.)

 Removing or replacing the BPE sensor (See page 80.)

 Removing or replacing the PG sensor (See page 81.)

 Removing or replacing the release lever position sensor (See page 81.)

 Removing or replacing the PF motor assembly (See page 82.)

 Removing or replacing the paper feed mechanism (See page 82.)

 Removing or replacing the paper guide (See page 83.)

Follow the instruction shown on the screen of the Adjustment Tool for SIDM to perform the Bi-D adjustment.

Figure 5-6. Bi-D Adjustment

5.2.3 Top Margin Adjustment

Perform the top margin adjustment when you have performed any of the following:

 Replacing the printer mechanism (See page 72.)

 Replacing the main board assembly (See page 74.)

 Removing or replacing the RPE sensor (See page 80.)

 Removing or replacing the BPE sensor (See page 80.)

 Removing or replacing the PF motor assembly (See page 82.)

 Removing or replacing the paper feed mechanism (See page 82.)

 Removing or replacing the paper guide (See page 83.)

Follow the steps below to perform the top margin adjustment.

1. Execute Pattern Test.

2. Check the print result, and take action according to the top margin value.

3. Input the top margin value and click Read. An adjustment value (8.5 mm) will be displayed. Click Input to save the adjustment value.

The gaps of Bi-D lines must be less than 0.25 mm.

Top margin value Action

4.9 mm or less Replace the RPE sensor. (See page 80.)

5.0 ∼ 7.4 mm The top margin adjustment is required. Go to step 3.

7.5 ∼ 9.5 mm

The top margin is correct and the top margin adjustment is not required.

9.6 ∼ 12.5 mm The top margin adjustment is required. Go to step 3.

12.6 mm or more Replace the RPE sensor. (See page 80.)

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Adjustment Adjustments 91

5.2.4 Bottom Margin Adjustment

Perform the bottom margin adjustment when you have performed any of the following:

 Replacing the printer mechanism (See page 72.)

 Replacing the main board assembly (See page 74.)

 Removing or replacing the RPE sensor (See page 80.)

 Removing or replacing the BPE sensor (See page 80.)

 Removing or replacing the PF motor assembly (See page 82.)

 Removing or replacing the paper feed mechanism (See page 82.)

 Removing or replacing the paper guide (See page 83.)

Follow the steps below to perform the bottom margin adjustment.

1. Execute Pattern Test.

2. Check the print result, and take action according to the bottom margin value.

3. Input the bottom margin value and click Read. An adjustment value (0.75 mm) will be displayed. Click Input to save the adjustment value.

Bottom margin value Action

1.6 ∼ 6.8 mm The bottom margin adjustment is required. Go to step 3.

0.0 ∼ 1.5 mm

The bottom margin is correct and the bottom margin adjustment is not required.

6.9 mm or more Replace the RPE sensor. (See page 80.)

Page 92

CHAPTER

MAINTENANCE

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Maintenance Maintenance 93

6.1 Maintenance

Appropriate maintenance is necessary to keep the printer in the best condition and prevent troubles.

6.1.1 Cleaning

Use a neutral detergent or diluted alcohol to clean the exterior surfaces. Vacuum dust or small pieces of paper inside the printer.

6.1.2 Lubrication

The lubrication points of LX-300+II/LX-1170II are as shown in the following table. Refer to the table for the type and the amount of oil to be used for each point. Oil and grease have a great affect on the performance of the product, especially on the durability and the performance at the lower temperature. EPSON determines what kind of and how much of oil to be applied based on the various information and analysis.

NOTE: Lubrication must be applied during the re-assembly process.

For lubrication points, refer to the following figures.

W A R N I N G

 When performing the maintenance, remove the AC cable from

the AC socket.

 Never touch the printhead right after printing, as it is highly

heated.

C A U T I O N

 Never use thinner, trichloroethylene, or ketone solvent, as it

may deform or deteriorate the plastic parts or rubber parts.

 Use the specified amount of the specified oil.  When using compressed air products, such as air duster, for

cleaning during repair and maintenance, the use of such products containing flammable gas is prohibited.

Table 6-1. Lubricants

Type Name Quantity Availability Part No.

Grease G-26 40g EPSON B702600001

Oil O-2 40cc EPSON B710200001

Table 6-2. Lubrication Points

Fig. Lubrication Points Lubricant Quantity

6-1

3 shafts and 1 boss of the left frame G-26 1/2 grain of rice

Shaft of RD ratchet G-26 1 grain of rice

6-2 Teeth of Gears at the left frame G-26 1/2 grain of rice

6-3 3 places on the 3 shafts of the right frame G-26 1 grain of rice

6-4

2 places on inside of cam at slope surface of the release lever

G-26 1 grain of rice

6-5

Shaft of the PF roller drive and the rear driven PF roller.

G-26 1/2 grain of rice

6-6 Paper guide from the back side at 4 places G-26 1 grain of rice

6-7

Hole of the right tractor assy frame faces to the tractor assy guide shaft and the left TR frame.

G-26 1/2 grain of rice

6-8 Oil pad O-2 0.28-0.32cc

6-9 Touching parts of the 2 sides of the base frame. G-26 40 mm x 2 places

6-10

2 touching positions with the CR motor assembly from the inside of the base frame.

G-26

1/2 grain of rice

x 2

6-11

Installing shaft of the combination gear, 17.5, 27 of the right frame.

G-26 1/2 grain of rice

6-12

Touching position of the grounding platen spring with platen shaft.

G-26 1 grain of rice

Spur gear 34 G-26 10 mm

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Maintenance Maintenance 94

Figure 6-1. Left Frame Assembly

Figure 6-2. Teeth of Gears at the Left Frame

Figure 6-3. Shafts at the Right Frame Assembly

Figure 6-4. Release Lever

Lubricate G-26 on the 3 shafts and 1 boss of the left frame. G-26, 1/2 grain of rice

Lubricate G-26 on the shaft of the RD ratchet. G-26, 1 grain of rice

Planetary lever assy.

Combination Gear 5.1, 16.2

Spur Gear, 13.2

RD ratchet

Driven pulley assy.

Lubrication Points

Spur Gear, 13.2

RD ratchet shaft

Lubricate G-26 on teeth of gears. G-26, 1/2 grain of rice

Lubricate G-26 at 3 places on 3 shafts at the right frame.

Shafts at the right frame assembly: G-26, 1 grain of rice

Lubricate G-26 at 2 places on inside of cam at slope surface of the release lever.

Release lever: G-26, 1 grain of rice

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Maintenance Maintenance 95

Figure 6-5. PF Roller Assembly

Figure 6-6. Paper Guide Assembly

Figure 6-7. Tractor Assembly

Figure 6-8. Oil Pad

Lubricate G-26 to the shaft of the drive PF roller and the rear driven PF roller. (4 places)

PF roller assembly: G-26, 1/2 grain of rice

Drive PF roller

Rear driven PF roller

Set the paper guide assembly upside down and lubricate at the touching part of the PF roller assembly with the release shaft. (4 places)

Paper guide assembly: G-26, 1 grain of rice

Release shaft

Paper guide assy.

Lubricate G-26 into the hole of the right TR (tractor) frame facing to the TR guide shaft and the left TR frame.

Tractor assembly: G-26, 1/2 grain of rice

The picture at the left is the back of the printhead.

1. Set the oil dispenser 0.30ml.

2. Lubricate O-2 on the Oil pad.

Oil pad: O-2, 0.28-0.32 cc

Note: Make sure that the setting of the oil dispenser is correct.

Oil Pad

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Maintenance Maintenance 96

Figure 6-9. Carriage

Figure 6-10. CR Motor Assembly

Figure 6-11. Combination Gear 17.5, 27

Figure 6-12. Platen Grounding Spring / Spur Gear

Move the carriage around the center, then lubricate G-26 on the touching parts of the 2 sides of the frame.

Carriage: G-26, 40 mm x 2 places

Lubricate G-26 on the 2 touching positions with CR motor assembly from the inside of the base frame.

CR motor assembly: G-26, 1/2 grain of rice x 2

Lubricate G-26 on the installing shaft of the Combination Gear, 17.5, 27 of the right frame.

Combination gear 17.5, 27: G-26, 1/2 grain of rice

Lubricate G-26 to the touching position of the platen grounding spring with Platen shaft and the spur gear 34.

Platen grounding spring: G-26, 1 grain of rice.

Spur Gear: G-26, 10 mm

Page 97

CHAPTER

LX-300+II RTP

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LX-300+II RTP DISASSEMBLY AND ASSEMBLY 98

About LX-300+II RTP, this service manual has only the chapters of the DISASSEMBLY AND ASSEMBLY, ADJUSTMENT, Parts List and Exploded Diagram.

7.1 DISASSEMBLY AND ASSEMBLY

This section explains the disassembly and assembly of LX-300+II. Unless otherwise specified, assembly can be done in the reverse order of the disassembly procedure.

Anything that service person should pay attention to is described under “Check Point”. Any adjustment required after assembly is described under “Adjustment”.

When you have to remove parts that are not described in this chapter, refer to the exploded diagram on Appendix of this manual.

The figure below is the disassembly flowchart for main component.

Flowchart 7-1. Disassembly Flowchart (Main Component)

C A U T I O N

Remove ink ribbon and paper before disassembling the printer.

7.1.1 “Printhead Unit Removal”

7.1.4 “Panel Board

Assembly Removal”

7.1.3 “Printer Mechanism Removal”

7.1.6 “P/S Board Assembly Removal”

7.1.5 “Main Board

Assembly Removal”

START

7.1.2 “Upper Housing Unit Removal”

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LX-300+II RTP DISASSEMBLY AND ASSEMBLY 99

7.1.1 Printhead Unit Removal

1. Remove 1 screw (C.P.B., Screw, 3x14 F/ZN; Torque 0.59-0.78N.m) securing the printhead to the carriage assembly.

2. Lift the printhead a little bit. Unlatch 2 hooks securing the printhead FFC to carriage unit.

3. Remove FFC from the printhead.

Figure7-1. Printhead Removal

C A U T I O N

Check if the printer is powered off before removing the printhead.

A D J U S T M E N T

R E Q U I R E D

When the printhead unit is removed or replaced, perform the platen gap adjustment and Bi-D adjustment.

Carriage Assembly

Printhead

C.P.B., Screw, 3x14 F/ZN

FFC

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7.1.2 Upper Housing Unit Removal

1. Remove the tractor unit.

2. Set the release lever to the tractor feed.

3. Remove 4 screws securing the upper housing to the lower housing.

4. Detach the upper housing.

5. Disconnect the lead wire of cover open switch assy from the relay connector, and remove the Upper Housing.

Figure7-2. Upper Housing Removal (1)

Figure7-3. Upper Housing Removal (2)

C H E C K

P O I N T

When installing the upper housing, be sure to insert LEDs on the panel board into the LED holes of the upper housing.

LED

Upper Housing

Panel Board Assembly

C.B.P., Tite, 3x10 F/ZN

Upper Housing

CPB (3x10)

Release lever

Relay connector

Lead wire of Cover

Open Switch Assy