Brother LX-300 Service Manual page 59

Chapter 4. ASSEMBLY PROCEDURES
4.1 Safety Precautions ............................................................................................................ 4-1
4.2 Table of Tightening Torques ............................................................................................. 4-2
4.3 Main Chassis B ................................................................................................................. 4-3
4.3.1 Installing the Main Chassis L, R, and F................................................................ 4-3
4.3.2 Installing the ENC Sensor PCB ............................................................................ 4-3
4.3.3 Installing the Cassette Holder............................................................................... 4-4
4.3.4 Installing the Main Chassis B ............................................................................... 4-5
4.4 Driving Roller..................................................................................................................... 4-6
4.4.1 Installing the Driving Roller................................................................................... 4-6
4.5 Trimming Mechanism........................................................................................................ 4-7
4.5.1 Assembling the Trimming Assy ............................................................................ 4-7
4.6 Paper Eject Roller and Y-diversion Lever......................................................................... 4-8
4.6.1 Installing the Paper Eject Roller Unit and Y-diversion Lever ............................... 4-8
4.6.2 Installing the Paper Eject Roller ........................................................................... 4-9
4.7 Right Side of the Main Chassis....................................................................................... 4-10
4.7.1 Installing the YC Lift Shaft and LF Change Shaft............................................... 4-10
4.7.2 Installing the Right Side of the Chassis.............................................................. 4-11
4.8 Left Side of the Chassis .................................................................................................. 4-14
4.8.1 Installing the Gears ............................................................................................. 4-14
4.8.2 Installing the LF Motor ........................................................................................ 4-15
4.9 Paper Feed Roller ........................................................................................................... 4-16
4.9.1 Installing the Paper Feed Holder Assy and the Paper Feed Roller Assy .......... 4-16
4.10 Roller Holder Assy .......................................................................................................... 4-19
4.10.1 Installing the Roller Holder Assy ........................................................................ 4-19
4.11 Y-sensor Rail Unit ........................................................................................................... 4-20
4.11.1 Assembling the Y-sensor Rail Unit (Attaching Y-sensor PCB Assy)................. 4-20
4.11.2 Installing the Y-sensor Rail Unit ......................................................................... 4-22
4.12 Y-CA Chassis Assy and Y-Cutter Arm............................................................................ 4-23
4.12.1 Installing the Y-cutter Arm .................................................................................. 4-23
4.12.2 Installing the Y-CA Motor.................................................................................... 4-24
4.12.3 Installing the Y-CA Chassis Assy ....................................................................... 4-24
4.13 X-cutter Unit .................................................................................................................... 4-26
4.13.1 Installing the Leaf Switch F Assy........................................................................ 4-26
4.13.2 Installing the X-cutter Unit................................................................................... 4-26
4.14 Harnesses ....................................................................................................................... 4-27
4.14.1 Installing the Harnesses ..................................................................................... 4-27
CONTENTS
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