(16) Fusing is poor..................................................................................................................................1-4-66

(17) Image is out of focus. ......................................................................................................................1-4-66

(18) Colors are printed offset to each other. ...........................................................................................1-4-67

(19) Image center does not align with the original center. ......................................................................1-4-67

1-4-4 Electric problems ..................................................................................................................................1-4-68

1-4-5 Mechanical problems ............................................................................................................................1-4-75

1-5 Assembly and Disassembly

1-5-1 Precautions for assembly and disassembly............................................................................................1-5-1

(1) Precautions .......................................................................................................................................1-5-1

(2) Drum..................................................................................................................................................1-5-1

(3) Toner .................................................................................................................................................1-5-1

(4) How to tell a genuine Kyocera Mita toner container..........................................................................1-5-2

1-5-2 Paper feed section ..................................................................................................................................1-5-3

(1) Detaching and refitting the forwarding, paper feed and separation pulleys ......................................1-5-3

(2) Detaching and refitting the MP unit ...................................................................................................1-5-6

(3) Detaching and refitting the MP forwarding, MP paper feed and MP separation pulleys ...................1-5-8

1-5-3 Optical section ......................................................................................................................................1-5-11

(1) Detaching and refitting the exposure lamp......................................................................................1-5-11

(2) Detaching and refitting the scanner wires .......................................................................................1-5-15

(3) Detaching and refitting the ISU (reference).....................................................................................1-5-19

(4) Detaching and refitting the laser scanner unit .................................................................................1-5-21

(5) Manual color registration adjustment ..............................................................................................1-5-28

1-5-4 Image formation section........................................................................................................................1-5-30

(1) Detaching and refitting the image formation holder.........................................................................1-5-30

(2) Detaching and refitting the developing unit .....................................................................................1-5-34

(3) Detaching and refitting the drum unit ..............................................................................................1-5-35

(4) Detaching and refitting the charger roller unit .................................................................................1-5-36

1-5-5 Transfer section ....................................................................................................................................1-5-37

(1) Detaching and refitting the transfer belt unit....................................................................................1-5-37

(2) Detaching and refitting the transfer roller ........................................................................................1-5-39

1-5-6 Fuser section ........................................................................................................................................1-5-41

(1) Detaching and refitting the fuser unit...............................................................................................1-5-41

1-5-7 Other .....................................................................................................................................................1-5-42

(1) Detaching and refitting the left filter, rear upper filter 1/2, right filter, rear lower filter,

front filter and duct filter...................................................................................................................1-5-42

(2) Detaching and refitting the hard disk unit ........................................................................................1-5-44

(3) Detaching and refitting the left cover 1 (paper conveying unit) .......................................................1-5-47

1-6 Requirements on PWB Replacement

1-6-1 Upgrading the firmware...........................................................................................................................1-6-1

1-6-2 Remarks on main PWB replacement......................................................................................................1-6-2

1-6-3 Remarks on engine PWB replacement...................................................................................................1-6-5

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 ...............................................................................................................2-1-4

2-1-2 Drum section...........................................................................................................................................2-1-7

(1) Drum section .....................................................................................................................................2-1-7

2-1-3 Developing section..................................................................................................................................2-1-9

(1) Developing section ............................................................................................................................2-1-9

2-1-4 Optical section ......................................................................................................................................2-1-11

(1) Image scanner section ....................................................................................................................2-1-11

(2) Laser scanner section .....................................................................................................................2-1-13

2-1-5 Transfer/separation section ..................................................................................................................2-1-15

(1) Primary transfer section ..................................................................................................................2-1-15

(2) Secondary transfer/separation section............................................................................................2-1-17

2-1-6 Fuser section ........................................................................................................................................2-1-18

(1) Fuser section...................................................................................................................................2-1-18

2-1-7 Eject/feedshift section ...........................................................................................................................2-1-20

(1) Eject/feedshift section .....................................................................................................................2-1-20

Table of Contents