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2-2 Electrical Parts Layout
2-2-1
Electrical parts layout
(1) PWBs
1.
Main/engine PWB (MEPWB) ....................... Controls the other PWBs, electrical components and optional devices.
2.
Power source PWB (PSPWB) ..................... Generates +24 V DC; controls the fuser heaters.
3.
High voltage PWB (HVTPWB) ..................... Main charging. Generates high voltages for transfer and high voltages for
4.
Inverter PWB (INPWB) ................................ Controls the exposure lamp.
5.
CCD PWB (CCDPWB)................................. Reads the image of originals.
6.
Operation unit PWB (OPWB)....................... Consists of the operation keys and display LEDs.
7.
LCD PWB (LCDPWB).................................. Controls LCD indication.
8.
APC PWB (APCPWB) ................................. Generates and controls the laser beam.
9.
PD PWB (PDPWB) ...................................... Controls horizontal synchronizing timing of laser beam.
10. Cassette PWB (CPWB) ............................... Relays wirings from electrical components.
11. Printer PWB (PRNPWB)*............................. Controls the printer functions.
*: Option
Y110980-1
4
6
9
10
Machine front
Machine inside
Figure 2-2-1 PWBs
Controls the operation panel and laser scanner unit.
separation.
Service Manual
1
3
7
8
Machine rear
2KL/2KK
5
11
2
2-2-1
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