Read Sharp AR-P350 / AR-P450 (serv.man8) Service Manual online
AR-P350 EXTERNAL VIEWS AND INTERNAL STRUCTURES-4
5. PWB
Name
Function/Operation
1
PRT controller
Image process, image data communication control
2
PCU PWB
Overall control of the machine and options
3
Power unit
DC power supply
4
LD PWB (Inside LSU)
Laser ON control (Inside LSU: LSU cannot be disassembled.)
5
Mother PWB
Signal interface between PCU and the controller
6
Filter PWB
AC power input
7
Printer operation PWB
Key input, machine state display
8
High voltage resistor PWB
High voltage load adjustment
9
Cassette detection PWB
Paper cassette control
10
Drawer PWB
Fan control
11
High voltage PWB
High voltage power supply
12
Fuse PWB
Protection of the machine when an abnormal power is supplied.
13
Initial detection PWB (in the developing unit)
New toner cartridge detection
1
2
11
8
10
13
9
4
3
6
7
12
5
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