Copystar CS-1620, Service Manual

Page: 13 / 235

2C9-6.0
1-6-3 Optical section ......................................................................................................................................1-6-17
(1) Detaching and refitting the exposure lamp......................................................................................1-6-17
(2) Detaching and refitting the scanner wires .......................................................................................1-6-18
(2-1) Detaching the scanner wires ...................................................................................................1-6-18
(2-2) Fitting the scanner wires .........................................................................................................1-6-20
(3) Detaching and refitting the ISU (reference).....................................................................................1-6-23
(4) Detaching and refitting the laser scanner unit .................................................................................1-6-24
(5) Adjusting the longitudinal squareness (reference) ..........................................................................1-6-27
(6) Adjusting magnification of the scanner in the main scanning direction ...........................................1-6-28
(7) Adjusting magnification of the scanner in the auxiliary scanning direction......................................1-6-29
(8) Adjusting the scanner leading edge registration .............................................................................1-6-30
(9) Adjusting the scanner center line ....................................................................................................1-6-31
(10) Adjusting the margins for scanning an original on the contact glass...............................................1-6-32
1-6-4 Drum section.........................................................................................................................................1-6-33
(1) Detaching and refitting the drum unit ..............................................................................................1-6-33
(2) Detaching and refitting the drum separation claws .........................................................................1-6-34
(3) Detaching and refitting the main charger unit..................................................................................1-6-35
1-6-5 Developing section................................................................................................................................1-6-36
(1) Detaching and refitting the developing unit ....................................................................................1-6-36
1-6-6 Transfer section ....................................................................................................................................1-6-37
(1) Detaching and refitting the transfer roller ........................................................................................1-6-37
1-6-7 Fixing section ........................................................................................................................................1-6-38
(1) Detaching and refitting the fixing unit ..............................................................................................1-6-38
(2) Detaching and refitting the press roller............................................................................................1-6-39
(3) Detaching and refitting the fixing heater M and S ...........................................................................1-6-40
(4) Detaching and refitting the heat roller separation claws..................................................................1-6-41
(5) Detaching and refitting the heat roller .............................................................................................1-6-42
(6) Detaching and refitting the fixing thermostat ...................................................................................1-6-43
(7) Detaching and refitting the fixing thermistor ....................................................................................1-6-43
(8) Adjusting the fixing unit height (adjusting lateral squareness) ........................................................1-6-44
1-7 Requirements on PCB Replacement
1-7-1 Upgrading the firmware on the main PCB ..............................................................................................1-7-1
1-7-2 Adjustment-free variable resistors (VR) ..................................................................................................1-7-2
1-7-3 Remarks on engine PCB or main PCB replacement ..............................................................................1-7-2
2-1 Mechanical construction
2-1-1 Paper feed section ..................................................................................................................................2-1-1
2-1-2 Optical section ........................................................................................................................................2-1-4
(1) Original scanning...............................................................................................................................2-1-5
(2) Image printing....................................................................................................................................2-1-6
2-1-3 Drum section...........................................................................................................................................2-1-8
2-1-4 Developing section................................................................................................................................2-1-10
(1) Formation of magnetic brush...........................................................................................................2-1-11
(2) Single component developing system.............................................................................................2-1-12
2-1-5 Transfer and separation sections..........................................................................................................2-1-13
2-1-6 Fixing section ........................................................................................................................................2-1-15
(1) Fixing temperature system ..............................................................................................................2-1-16
(2) Fixing temperature control based on ambient temperature.............................................................2-1-16
2-1-7 Exit and switchback sections ................................................................................................................2-1-17
2-1-8 Duplex section ......................................................................................................................................2-1-18
(1) Paper conveying operation in duplex copying.................................................................................2-1-19
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout..............................................................................................................................2-2-1
(1) PCBs .................................................................................................................................................2-2-1
(2) Switches and sensors .......................................................................................................................2-2-2
(3) Motors ...............................................................................................................................................2-2-3
(4) Other electrical components..............................................................................................................2-2-4