Assembly And Disassembly - Kyocera Mita KM-4230 Service Manual

3-3 Assembly and Disassembly

3-3-1 Precautions for assembly and disassembly ........................................ 3-3-1
(1) Precautions ................................................................................. 3-3-1
(2) Running a maintenance item ....................................................... 3-3-2
3-3-2 Paper feed section .............................................................................. 3-3-3
(1) Detaching and refitting the forwarding, upper paper feed and
lower paper feed pulleys ............................................................. 3-3-3
(2) Detaching and refitting the bypass forwarding, upper and
lower paper feed pulleys ............................................................. 3-3-8
(3) Replacing the upper and lower paper width switches
(inch models only) ..................................................................... 3-3-14
(4) Replacing the upper and lower registration cleaner
assemblys ................................................................................. 3-3-16
(5) Adjusting the position of the rack adjuster ................................. 3-3-17
(6) Adjustment after roller and clutch replacement ......................... 3-3-18
(6-1) Adjusting the leading edge registration .......................... 3-3-18
(6-2) Adjusting the center line of image printing ...................... 3-3-19
(6-3) Adjusting the margins for printing ................................... 3-3-20
(6-4) Adjusting the amount of slack in the paper
3-3-3 Optical section .................................................................................. 3-3-23
(1) Detaching and refitting the exposure lamp ................................ 3-3-23
(2) Detaching and refitting the scanner wires ................................. 3-3-24
(2-1) Detaching the scanner wires .......................................... 3-3-24
(2-2) Refitting the scanner wires ............................................. 3-3-25
(3) Replacing the laser scanner unit ............................................... 3-3-28
(4) Replacing the ISU (reference) ................................................... 3-3-30
(5) Adjusting the longitudinal squareness (reference) .................... 3-3-32
(6) Adjusting scanner image lateral squareness (reference) .......... 3-3-33
(5-1) Adjusting the position of the laser scanner unit .............. 3-3-33
(5-2) Adjusting the position of the ISU .................................... 3-3-35
(7) Adjusting magnification of the scanner in the main
scanning direction ..................................................................... 3-3-36
(8) Adjusting magnification of the scanner in the auxiliary
scanning direction ..................................................................... 3-3-37
(9) Adjusting the scanner center line .............................................. 3-3-38
(10) Adjusting the scanner leading edge registration ....................... 3-3-39
(11) Adjusting the margins for scanning an original on the
contact glass ............................................................................. 3-3-40
3-3-4 Main charging section ....................................................................... 3-3-42
(1) Replacing the charger wire and main charger grid .................... 3-3-42
3-3-5 Drum section ..................................................................................... 3-3-45
(1) Replacing the drum ................................................................... 3-3-45
(2) Cleaning the drum ..................................................................... 3-3-48
CONTENTS
at the registration roller for drawer, bypass and
duplex feeds ................................................................... 3-3-22
2A3/4
1-1-21