Epson LX-300 Service Manual

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CHAPTER 3 Disassembly and Assembly
Table of Contents
3.1 OVERVIEW
3-1
3.1.1 Disassembly Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1.2 TOOk3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........0-. 3-1
3.1.3 Service ChecksAfterRepair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.1.4 Specifications
forScrews. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2 DISASSEMBLY AND ASSEMBLY
3-4
3.2.1 Removing the Printhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.2.2 Removing the HOUSING ASSY.,UPPER . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.2.2.1 Removing the ROLLER ASSY.,EJECT. . . . . . . . . . . . . . . . . . . . 3-6
3.2.3 Removing the BOARD
ASSY.,MAIN and PSB/PSE . . . . . . . . . . . . . . . . 3-7
3.2.3.1 Removing the BOARD
ASSY.,MAIN. . . . . . . . . . . . . . . . . . . . . . 3-8
3.2.3.2 Removing the BOARD
ASSY.,PSB/PSE . . . . . . . . . . . . . . . . . . 3-8
3.2.4 Removing the Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.2.4.1 Removing the MOTOR ASSY.,PF . . . . . . . . . . . . . . . . . . . . . . 3-10
3.2.4.2 Removing the MOTOR
ASSY.,CR . . . . . . . . . . . . . . . . . . . . . . 3-11
3.2.4.3 Removing the PLATEN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.2.4.4 Removing the DETECTOR,PE. . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3.2.4.5 Removing the DETECTOR, HP. . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.2.4.6 Removing the Release
Lever Position Sensor . . . . . . . . . . . . . 3-14
3.2.4.7 Removing the CARRIAGE ASSY.. . . . . . . . . . . . . . . . . . . . . . . 3-15
3.2.4.8 Removing the Ribbon Drive Gear Assembly. . . . . . . . . . . . . . . 3-16
3.2.4.9 Removing the PF Gear Assembly. . . . . . . . . . . . . . . . . . . . . . . 3-16
3.2.5 Removing the BOARD ASSY.,INTERFACE . . . . . . . . . . . . . . . . . . . . . 3-17
3.2.6 Removing the ROLLER
ASSY.,DRIVEN. . . . . . . . . . . . . . . . . . . . . . . . 3-18
3.2.7 Disassembling and Assembling the Optional Color Upgrade Kit. . . . . . 3-19
3.2.7.1 Removing the MOTOR
ASSY.,CS . . . . . . . . . . . . . . . . . . . . . . 3-19
3.2.7.2 Removing the GEAR,
CAM,CS . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.2.7.3 Removing the Color Ribbon Sensor . . . . . . . . . . . . . . . . . . . . . 3-19

Epson LX-300 Specifications

General

Print Method	9-pin impact dot matrix
Interface	Parallel
Paper Handling	Friction feed, tractor feed
Weight	4.4 kg
Operating Environment	Temperature: 5 - 35°C, Humidity: 10 - 80%