Epson LX-300II - LX-300+ II Impact Printer Wartungshandbuch

EPSON LX-300+9-pin Serial Impact Dot Matrix PrinterSEDM997003®SERVICE MANUAL

LX-300+ Revision AProduct Description Printing Specification 101.2 Printing Specification1.2.1 Printing SpecificationPrint method: Impact dot matri

EPSON LX-300+ Revision AAppendix Exploded Diagrams 1007.3 Exploded DiagramsFigure 7-2. Exploded Diagram 1127(126/for EAI) L-300 No.01

EPSON LX-300+ Revision AAppendix Exploded Diagrams 101Figure 7-3. Exploded Diagram 2L-300 No.02 Rev.01 102025745

EPSON LX-300+ Revision AAppendix Component Layout 1027.4 Component LayoutTBD

EPSON LX-300+ Revision AAppendix Circuit Schematics 1037.5 Circuit SchematicsThe following pages show circuit schematics below.C294MAIN BoardC294PS

LX-300+ Revision AProduct Description Printing Specification 11Character tables:Standard version (13 character table)Italic table PC437 (US, Standar

LX-300+ Revision AProduct Description Printing Specification 12Character tables and typefaces:Table 1-3. Character Tables and TypefacesCharacter tab

LX-300+ Revision AProduct Description Printing Specification 131.2.2 Paper FeedingFeeding method: Friction feed (rear)Push tractor feed (rear)Push a

LX-300+ Revision AProduct Description Printing Specification 141.2.3 Electrical Specification120 V versionRated voltage: AC 120VInput voltage rang

LX-300+ Revision AProduct Description Printing Specification 15Yellow 0.5 million characters (Draft 10 cpi, 14 dots/character)1.2.7 Safety Approvals

LX-300+ Revision AProduct Description Printing Specification 161.2.10 Printable AreaCut sheetsFigure 1-2. Printable Area for Cut SheetP rintable A

LX-300+ Revision AProduct Description Printing Specification 17Envelop Figure 1-3. Printable Area for EnvelopContinuous paperFigure 1-4. Printable

LX-300+ Revision AProduct Description Printing Specification 18Roll paperFigure 1-5. Printable Area for Roll PaperTable 1-9. Printable Area for Rol

LX-300+ Revision AProduct Description Interface Specifications 191.3 Interface SpecificationsLX-300+ provides bi-directional 8 bit parallel interface

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, elect

LX-300+ Revision AProduct Description Interface Specifications 20BUSY signal is active (HIGH level) under the conditions below:In the process of rec

LX-300+ Revision AProduct Description Interface Specifications 211.3.2 Parallel Interface (Reverse Channel)Transmission mode: IEEE-1284 nibble mode

LX-300+ Revision AProduct Description Interface Specifications 22* In/Out shows the direction of signal flow from the printer’s point of view.1.3.3 S

LX-300+ Revision AProduct Description Interface Specifications 231.3.4 Interface SelectionThe printer has 2 interfaces; the parallel interface and se

LX-300+ Revision AProduct Description Operation 241.4 Operation1.4.1 Control Panel4 switches and 4 LEDs are on the panel as shown below.Figure 1-7.

LX-300+ Revision AProduct Description Operation 25Operation in default setting modeThe following switches are used in default setting mode;1.4.1.2 L

LX-300+ Revision AProduct Description Operation 261.4.2 Functions1.4.2.1 Usual OperationPause-This switch alternates printer activity between print

LX-300+ Revision AProduct Description Operation 273. Press Tear Off button.The current setting and the “Usage of this mode” by selected language will

LX-300+ Revision AProduct Description Operation 281.4.2.4 Bi-d. AdjustmentBi-d. adjustment can be adjusted by users. Bi-d. adjustment method is as fo

LX-300+ Revision AProduct Description Control codes 291.5 Control codes1.5.1 ESC/P2Table 1-22. ESC/P2Classification Operation CommandGeneral Operat

PRECAUTIONSPrecautionary notations throughout the text are categorized relative to 1) Personal injury and 2) damage to equipment.The precautionary mea

LX-300+ Revision AProduct Description Control codes 301.5.2 IBM 2390 Plus EmulationTable 1-23. IBM 2390 Plus emulationClassification Operation Comma

LX-300+ Revision AProduct Description Control codes 311.5.3 Bi-Directional CommandsReply printer IDReply printer ID: [ESC][SOH]@EJL[SP]ID[CR][LF]The

LX-300+ Revision AProduct Description Control codes 32*4 m2 and m3 apply to the following ID number. (See Table 1-27 & Table 1-28.)*5 m1=0 to 7 on

LX-300+ Revision AProduct Description Control codes 331.5.3.1 Reply Printer StatusThe printer sends back one of the five strings shown below accordin

LX-300+ Revision AProduct Description Control codes 34Paper_path characteristic status codeMIB proxy information“1G:”“0305NA,” Sheet feeder bin 1 (

LX-300+ Revision AProduct Description Initialization 351.6 InitializationPower-on initializationThe initialization of this level is activated by pow

LX-300+ Revision AProduct Description Paper Specifications 361.7 Paper SpecificationsCut sheet (single sheet, not multi part) Cut sheet (multi part

LX-300+ Revision AProduct Description Paper Specifications 37EnvelopeTable 1-37. EnvelopeContinuous paper (Single sheet and Multipart)Table 1-38.

LX-300+ Revision AProduct Description Paper Specifications 38LabelsTable 1-39. Continuous Paper with LabelsFigure 1-8. Printable Area - LabelRoll

LX-300+ Revision AProduct Description Physical Specifications 391.8 Physical SpecificationsPhysical Specifications (Without pull tractor)Dimensions

PREFACEThis manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of LX-300+. The instru

LX-300+ Revision AProduct Description Accessories 401.9 Accessories Table 1-41. Enclosed PartsEnclosed Items Quantity User's manual 1Driver dis

CHAPTER2OPERATING PRINCIPLES

EPSON LX-300+ Revision AOperating Principles Overview 422.1 OverviewLX-300+ consists of the printer mechanism and electric circuit boards.Figure 2-1.

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 432.2 Printer Mechanism (M-3M10)The following is main components of the LX-30

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 442.2.1 PrintheadThe table below shows the printhead specifications.Figure 2-

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 452.2.2 Carriage MechanismThe following is the components of the LX-300+ carr

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 46 The following table shows the various carriage speed modes.Table 2-4. Carri

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 47CARRIAGE HOME POSITION (HP) DETECTORThe table below is the HP detector speci

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 48Figure 2-4. Color Ribbon Driving MechanismRIBBON CARTRIDGE DETECTORRibbon de

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 49COLOR MECHANISM INITIALIZATIONThe printer mechanism initializes when the pow

Revision StatusRevision Date of Issue DescriptionA May 11, 2000 First Release

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 502.2.5 Paper Feed MechanismThis mechanism consists of paper feed motor (PF m

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 51RPE DETECTORRPE detector is installed on the paper path at the back of the p

EPSON LX-300+ Revision AOperating Principles Printer Mechanism (M-3M10) 522.2.6 Release MechanismThis mechanism switches the flow of PF motor driving

EPSON LX-300+ Revision AOperating Principles Electric Circuit Operating Principles 532.3 Electric Circuit Operating Principles2.3.1 MAIN Board (Cont

EPSON LX-300+ Revision AOperating Principles Electric Circuit Operating Principles 54NOTE: *: CPU and G/A will be changed to 2in1 type later.2.3.2 C2

CHAPTER3TROUBLESHOOTING

EPSON LX-300+ Revision ATroubleshooting Overview 563.1 OverviewThis chapter describes how to troubleshoot problems when any problems occurred to the

EPSON LX-300+ Revision ATroubleshooting Troubleshooting 573.2 Troubleshooting3.2.1 Initialization CheckBefore troubleshooting, check the following b

EPSON LX-300+ Revision ATroubleshooting Troubleshooting 58Release Lever ErrorThis error will be indicated when wrong release lever operation is perfo

EPSON LX-300+ Revision ATroubleshooting Troubleshooting 59Table 3-3. Control Panel LED Does Not Light On.Cause Check Point Y/N SolutionBlowout of a fu

ContentsChapter 1 Product Description 1.1 Features ...

EPSON LX-300+ Revision ATroubleshooting Troubleshooting 60Table 3-6. Self Test Print is Abnormal.Cause Check Point Y/N SolutionAny of CN3 to CN12 is n

EPSON LX-300+ Revision ATroubleshooting Troubleshooting 613.2.4 Unit and Parts CheckThis section describes the checking method of the printhead, moto

EPSON LX-300+ Revision ATroubleshooting Troubleshooting 623.2.4.2 Motor CheckBy measuring the direct current resistance of the motor coil, you can ch

EPSON LX-300+ Revision ATroubleshooting Troubleshooting 633.2.4.4 Printhead Driver CheckSimple check of the printer driver (Q3 ~ Q11) can be done by

CHAPTER4DISASSEMBLY AND ASSEMBLY

EPSON LX-300+ Revision ADisassembly and Assembly Overview 654.1 OverviewThis chapter explains the disassembly and assembly of LX-300+.4.1.1 Precauti

EPSON LX-300+ Revision ADisassembly and Assembly Overview 664.1.3 Service Checks After RepairBefore returning the printer back to the user, use the c

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 674.2 Disassembly and AssemblyThis section explains the disassembly and ass

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 684.2.1 Printhead Removal1. Remove the cover and the printer.2. Remove 1 sc

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 694.2.2 Upper Housing Removal1. Remove platen knob, cover assembly, printer

Chapter 3 Troubleshooting 3.1 Overview ... 56 3.2 Troub

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 704.2.3 Printer Mechanism Removal1. Remove the upper housing. (See 4.2.2 &q

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 714.2.4 Board Assembly and Panel Removal1. Remove the upper housing. (See 4

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 72Figure4-6. C294MAIN Board Assembly Removal4.2.6 P/S Board Assembly Remova

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 734.2.7 Printer Mechanism DisassemblyThis section explains the disassemblin

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 744.2.7.2 Platen Removal1. Remove the printer mechanism. (See 4.2.3 "P

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 754.2.7.3 Carriage Unit Removal1. Remove the printer mechanism. (See 4.2.3

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 76Figure4-14. Hook at the PG Adjust Lever7. Remove the carriage unit along w

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 774.2.7.5 RPE Sensor Removal1. Remove the printer mechanism. (See 4.2.3 &qu

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 784.2.7.8 PG Sensor Removal1. Remove the printer mechanism. (See 4.2.3 &quo

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 794.2.7.10 PF Motor Assembly Removal1. Remove the printer mechanism. (See 4

CHAPTER1PRODUCT DESCRIPTION

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 805. Remove the combination gear, 8.5, 25.2 from the right frame.Figure4-22.

EPSON LX-300+ Revision ADisassembly and Assembly Disassembly and Assembly 814.2.7.12 Paper Guide Removal1. Remove the printer mechanism. (See 4.2.3 &

CHAPTER5ADJUSTMENT

EPSON LX-300+ Revision AAdjustment Overview 835.1 OverviewThis chapter explains the adjustment required after disassembling the printer.5.1.1 Platen

EPSON LX-300+ Revision AAdjustment Overview 845.1.2 Bi-D AdjustmentBi-D adjustment is required at the following cases.Main board assembly is replace

EPSON LX-300+ Revision AAdjustment Overview 857. The program will ask you the production line No. Ignore it and press ENTER.8. Printer 9/24 pin select

EPSON LX-300+ Revision AAdjustment Overview 8611. When you select the destination, select menu below appears. You can select from inspection within th

EPSON LX-300+ Revision AAdjustment Overview 8715. Input the printing mode and the settings you want to use and input ENTER (Write) to confirm it. Pres

CHAPTER6MAINTENANCE

EPSON LX-300+ Revision AMaintenance Maintenance 896.1 MaintenanceAppropriate maintenance is necessary to keep the printer in the best condition and p

LX-300+ Revision AProduct Description Features 91.1 FeaturesEPSON LX-300+ is a 9-pin serial impact dot matrix printer. The major features of this pri

EPSON LX-300+ Revision AMaintenance Maintenance 90Figure 6-1. Left Frame AssemblyFigure 6-2. Teeth of Gears at the Left FrameFigure 6-3. Shafts at the

EPSON LX-300+ Revision AMaintenance Maintenance 91Figure 6-5. PF Roller AssemblyFigure 6-6. Paper Guide AssemblyFigure 6-7. Tractor AssemblyFigure 6-8

EPSON LX-300+ Revision AMaintenance Maintenance 92Figure 6-9. CarriageFigure 6-10. CR Motor AssemblyFigure 6-11. Combination Gear 17.5, 27Figure 6-12.

CHAPTER7APPENDIX

EPSON LX-300+ Revision AAppendix Connector Summary 947.1 Connector SummaryThe figure below illustrates how the primary components are connected. Figu

EPSON LX-300+ Revision AAppendix Connector Summary 95Table 7-4. Connector Pin Assignments - CN5Pin I/O Signal Name Function1 I RELEASE Release sensor

EPSON LX-300+ Revision AAppendix Connector Summary 96Table 7-10. Connector Pin Assignments - CN11Pin I/O Signal Name Function1 O PFA Paper feed motor

EPSON LX-300+ Revision AAppendix Parts List 977.2 Parts ListThe following table shows parts name of this product. Refer to the exploded diagrams for

EPSON LX-300+ Revision AAppendix Parts List 98516 "PULLEY ASSY.,DRIVEN"517 "HARNESS,HP"518 C.P.B SCREW520 PAPER GUIDE521 "DET

EPSON LX-300+ Revision AAppendix Parts List 99571 "COMBINATION GEAR,17.5,27"573 "GROUNDING PLATE,CS"574 "GROUNDING WIRE,LEFT&