Assembly And Disassembly; Requirements On Pwb Replacement; Mechanical Construction - Kyocera TASKalfa 420i Service Manual

2KR/2KS
(15) Image is partly missing....................................................................................................................1-4-53
(16) Fusing is poor..................................................................................................................................1-4-53
(17) Image is out of focus. ......................................................................................................................1-4-53
(18) Image center does not align with the original center. ......................................................................1-4-54
(19) Image is not square.........................................................................................................................1-4-54
1-4-4 Electric problems ..................................................................................................................................1-4-55
1-4-5 Mechanical problems ............................................................................................................................1-4-60
1-4-6 Send error code ..................................................................................................
(1) Scan to SMB error codes ..............................................................................
(2) Scan to FTP error codes ...............................................................................
(3) Scan to E-mail error codes............................................................................
(4) Network Twain error codes ...........................................................................
(5) Software trouble error codes .........................................................................

1-5 Assembly and Disassembly

1-5-1 Precautions for assembly and disassembly........................................................
(1) Precautions ...................................................................................................
(2) Drum..............................................................................................................
(3) Toner .............................................................................................................
(4) How to tell a genuine Kyocera Mita toner container......................................
1-5-2 Paper feed section ..............................................................................................
(1) Detaching and refitting the forwarding, paper feed and separation pulleys ..
(2) Detaching and refitting the MP separation, MP paper feed and MP forwardin
(3) Detaching and refitting the left and right registration cleaner ........................
1-5-3 Optical section ....................................................................................................
(1) Detaching and refitting the exposure lamp....................................................
(2) Detaching and refitting the scanner wires .....................................................
(3) Detaching and refitting the ISU (reference)...................................................
(4) Detaching and refitting the laser scanner unit ...............................................
(5) Adjusting the skew of the laser scanner unit (reference) ................................................................1-5-24
1-5-4 Drum section.........................................................................................................................................1-5-25
(1) Detaching and refitting the drum unit ..............................................................................................1-5-25
(2) Detaching and refitting the main charger unit..................................................................................1-5-26
(3) Detaching and refitting the drum separation claws .........................................................................1-5-27
1-5-5 Developing section................................................................................................................................1-5-28
(1) Detaching and refitting the developing unit .....................................................................................1-5-28
1-5-6 Transfer section ....................................................................................................................................1-5-29
(1) Detaching and refitting the transfer roller unit .................................................................................1-5-29
1-5-7 Fuser section ........................................................................................................................................1-5-30
(1) Detaching and refitting the fuser unit...............................................................................................1-5-30
(2) Detaching and refitting the heat roller separation claws..................................................................1-5-31
(3) Detaching and refitting the press roller............................................................................................1-5-32
(4) Detaching and refitting the fuser heater ..........................................................................................1-5-33
(5) Detaching and refitting the heat roller .............................................................................................1-5-34
(6) Detaching and refitting the fuser thermistor 1 and 2 ......................................................................1-5-35
(7) Adjusting front position of the fuser unit (adjusting lateral squareness) ..........................................1-5-36
1-5-8 Others ...................................................................................................................................................1-5-37
(1) Detaching and refitting the ozone filter 1 and 2...............................................................................1-5-37
(2) Detaching and refitting the dust filter 1 and 2..................................................................................1-5-38
(3) Detaching and refitting the ISU filter................................................................................................1-5-39
(4) Detaching and refitting the hard disk...............................................................................................1-5-40
(5) Direction of installing the principal fan motors.................................................................................1-5-43

1-6 Requirements on PWB Replacement

1-6-1 Upgrading the firmware...........................................................................................................................1-6-1
1-6-2 Adjustment-free variable resistors (VR) ..................................................................................................1-6-1
1-6-3 Remarks on main PWB replacement......................................................................................................1-6-2
1-6-4 Remarks on engine PWB replacement...................................................................................................1-6-3

2-1 Mechanical construction

2-1-1 Paper feed section ..................................................................................................................................2-1-1
(1) Cassette paper feed section..............................................................................................................2-1-1
(2) MP tray paper feed section ...............................................................................................................2-1-3
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