2-38 Service Manual
4023-001
Low Image Density Service Check
FRU Action
1 Toner Cartridge The toner cartridge may be empty. Replace the
toner cartridge.
2Imaging/PC
Cartridge
Imaging/PC cartridge may be at the end of life.
Replace the imaging/PC cartridge.
3•High Volt-
age Power
Supply
(HV1)
• Fuser Frame
Resistor
Board
(PWB-R1)
•Printer Main
Engine
Board
(PWB-A)
The printer may have poor development. Replace
the listed parts in the given order as necessary.
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