Epson LX-300+II Service Manual

[Page 1] Epson LX-300+II

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] Epson LX-300+II

Notice  All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSO...

[Page 3] Epson LX-300+II

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...

[Page 4] Epson LX-300+II

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 techni...

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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 fail...

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CONTENTS Chapter 1 PRODUCT DESCRIPTION 1.1 FEATURES ......................................................................................................... 9 1.2 SPECIFICATIONS .........................................................................

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Chapter 4 Disassembly and Assembly 4.1 Overview ............................................................................................................ 66 4.1.1 Precautions ...........................................................................

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CHAPTER 1 PRODUCT DESCRIPTION ...

[Page 9] Epson LX-300+II

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...

[Page 10] Epson LX-300+II

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 diamete...

[Page 11] Epson LX-300+II

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...

[Page 12] Epson LX-300+II

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 ...

[Page 13] Epson LX-300+II

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 ...

[Page 14] Epson LX-300+II

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 li...

[Page 15] Epson LX-300+II

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 Fi...

[Page 16] Epson LX-300+II

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. Recomme...

[Page 17] Epson LX-300+II

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 �...

[Page 18] Epson LX-300+II

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 ...

[Page 19] Epson LX-300+II

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  I...

[Page 20] Epson LX-300+II

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 Ch...

[Page 21] Epson LX-300+II

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 le...

[Page 22] Epson LX-300+II

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 Printin...

[Page 23] Epson LX-300+II

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 m...

[Page 24] Epson LX-300+II

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 norm...

[Page 25] Epson LX-300+II

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 Micr...

[Page 26] Epson LX-300+II

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 pri...

[Page 27] Epson LX-300+II

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. Ente...

[Page 28] Epson LX-300+II

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 ...

[Page 29] Epson LX-300+II

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 Printin...

[Page 30] Epson LX-300+II

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 Tabl...

[Page 31] Epson LX-300+II

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. �...

[Page 32] Epson LX-300+II

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 <Remote commands> Table 1-31. Note for Table 1-30 m1 set by...

[Page 33] Epson LX-300+II

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 �...

[Page 34] Epson LX-300+II

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. �...

[Page 35] Epson LX-300+II

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 initializati...

[Page 36] Epson LX-300+II

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: Print...

[Page 37] Epson LX-300+II

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. ...

[Page 38] Epson LX-300+II

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 h...

[Page 39] Epson LX-300+II

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 m...

[Page 40] Epson LX-300+II

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 ...

[Page 41] Epson LX-300+II

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...

[Page 42] Epson LX-300+II

CHAPTER 2 OPERATING PRINCIPLES ...

[Page 43] Epson LX-300+II

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 ...

[Page 44] Epson LX-300+II

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, Carr...

[Page 45] Epson LX-300+II

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....

[Page 46] Epson LX-300+II

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 ...

[Page 47] Epson LX-300+II

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 resolutio...

[Page 48] Epson LX-300+II

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

[Page 49] Epson LX-300+II

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

[Page 50] Epson LX-300+II

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

[Page 51] Epson LX-300+II

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

[Page 52] Epson LX-300+II

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

[Page 53] Epson LX-300+II

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

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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 mo...

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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) dep...

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CHAPTER 3 TROUBLESHOOTING ...

[Page 57] Epson LX-300+II

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

[Page 58] Epson LX-300+II

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

[Page 59] Epson LX-300+II

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

[Page 60] Epson LX-300+II

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

[Page 61] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Troubleshooting Troubleshooting 61 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 pro...

[Page 62] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Troubleshooting Troubleshooting 62 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 ...

[Page 63] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Troubleshooting Troubleshooting 63 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 Ch...

[Page 64] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Troubleshooting Troubleshooting 64 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...

[Page 65] Epson LX-300+II

CHAPTER 4 DISASSEMBLY AND ASSEMBLY ...

[Page 66] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Overview 66 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...

[Page 67] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Overview 67 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/Z...

[Page 68] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Overview 68 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. C...

[Page 69] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 69 4.2 Disassembly and Assembly This section explains the disassembly and assembly of LX-300+II/LX-1170II. Unless otherwise specified, assembly can be do...

[Page 70] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 70 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 print...

[Page 71] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 71 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...

[Page 72] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 72 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...

[Page 73] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 73 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 mech...

[Page 74] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 74 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....

[Page 75] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 75 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...

[Page 76] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 76 4.2.7 Printer Mechanism Disassembly This section explains the disassembling procedure of the printer mechanism. The disassembling procedure is shown i...

[Page 77] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 77 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...

[Page 78] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 78 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 �...

[Page 79] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 79 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...

[Page 80] Epson LX-300+II

EPSON LX-300+II/300+II RTP/1170II Revision D Disassembly and Assembly Disassembly and Assembly 80 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 installe...

[Page 81] Epson LX-300+II

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

[Page 82] Epson LX-300+II

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

[Page 83] Epson LX-300+II

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

[Page 84] Epson LX-300+II

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

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CHAPTER 5 ADJUSTMENT ...

[Page 86] Epson LX-300+II

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

[Page 87] Epson LX-300+II

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

[Page 88] Epson LX-300+II

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

[Page 89] Epson LX-300+II

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

[Page 90] Epson LX-300+II

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

[Page 91] Epson LX-300+II

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

[Page 92] Epson LX-300+II

CHAPTER 6 MAINTENANCE ...

[Page 93] Epson LX-300+II

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

[Page 94] Epson LX-300+II

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

[Page 95] Epson LX-300+II

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

[Page 96] Epson LX-300+II

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

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CHAPTER 7 LX-300+II RTP ...

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

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

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EPSON LX-300+II/300+II RTP/1170II Revision D LX-300+II RTP DISASSEMBLY AND ASSEMBLY 100 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 l...