Kyocera Mita KM-1505 Service Manual page 10

1-6-4 Image formation section ..................................................................................................................... 1-6-27
(1) Detaching and refitting the image formation unit .......................................................................... 1-6-27
(2) Detaching and refitting the main charger unit ............................................................................... 1-6-28
(3) Detaching and refitting the drum .................................................................................................. 1-6-29
(4) Detaching and refitting the cleaning blade ................................................................................... 1-6-31
(5) Replace the developer .................................................................................................................. 1-6-32
1-6-5 Transfer section ................................................................................................................................. 1-6-33
(1) Detaching and refitting the transfer roller assembly ..................................................................... 1-6-33
1-6-6 Fixing section ..................................................................................................................................... 1-6-34
(1) Detaching and refitting the fixing unit ........................................................................................... 1-6-34
(2) Detaching and refitting the fixing unit thermistor .......................................................................... 1-6-34
(3) Detaching and refitting the fixing heater ....................................................................................... 1-6-35
(4) Detaching and refitting the heat roller separation claws ............................................................... 1-6-37
(5) Detaching and refitting the heat roller ........................................................................................... 1-6-38
(6) Detaching and refitting the press roller ......................................................................................... 1-6-38
1-7 Requirements on PCB Replacement
1-7-1 Replacing the main PCB ...................................................................................................................... 1-7-1
1-7-2 Upgrading the firmware on the main PCB ............................................................................................ 1-7-3
1-7-3 Adjustment-free variable resistors (VR) ............................................................................................... 1-7-4
2-1 Mechanical construction
2-1-1 Paper feed section ............................................................................................................................... 2-1-1
2-1-2 Main charging section .......................................................................................................................... 2-1-3
2-1-3 Optical section ...................................................................................................................................... 2-1-5
(1) Original scanning ............................................................................................................................ 2-1-6
(2) Image printing ................................................................................................................................. 2-1-8
2-1-4 Developing section ............................................................................................................................. 2-1-10
(1) Formation of magnetic brush ........................................................................................................ 2-1-11
(2) Toner density detection by the toner sensor ................................................................................ 2-1-12
(3) Toner density control .................................................................................................................... 2-1-12
(4) Correcting the toner sensor control voltage .................................................................................. 2-1-13
(5) Correcting toner output voltage .................................................................................................... 2-1-14
2-1-5 Transfer and separation section ......................................................................................................... 2-1-15
2-1-6 Cleaning section ................................................................................................................................. 2-1-17
2-1-7 Charge erasing section ...................................................................................................................... 2-1-18
2-1-8 Fixing section ..................................................................................................................................... 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
2-3 Operation of the PCBs
2-3-1 Power source PCB ............................................................................................................................... 2-3-1
2-3-2 Main PCB ............................................................................................................................................. 2-3-4
2-3-3 Operation PCB ..................................................................................................................................... 2-3-8
2-3-4 CCD PCB ........................................................................................................................................... 2-3-10
2-3-5 Laser diode PCB ................................................................................................................................ 2-3-11
2-4 Appendixes
Timing chart No. 1 .......................................................................................................................................... 2-4-1
Timing chart No. 2 .......................................................................................................................................... 2-4-2
Timing chart No. 3 .......................................................................................................................................... 2-4-3
Chart of image adjustment procedures .......................................................................................................... 2-4-4
Wiring diagram ............................................................................................................................................... 2-4-7
1-1-3
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