Kyocera FS-6950DN Service Manual page 56

2F7-2
(2) All-black printout.
Print example
No main
charging.
1-4-10
Causes
Defective main charger
unit.
Poor contact of engine
PWB's main charger out-
put terminal and main
charger unit's contact
(spring).
Drum PWB
connector (YC1)
Main
charger
unit
Contact (spring)
Drum unit
Poor contact of engine
PWB's main charger out-
put terminal and printer's
contact (spring).
Defective engine PWB.
Check procedures/corrective measures
Replace the main charger unit (See page P.1-5-12).
Check the installation of the drum (main charger) unit.
Refer to figure 1-4-5 below.
Connect-L PWB
Printer left side
connector (YC3)
A
A
B
Contact
(spring)
C
Drum unit
Figure 1-4-5
Check the installation position of the engine PWB.
(See page P.1-5-22 and P.1-4-9 refer to figure 1-4-3)
Replace the engine PWB (See page P.1-5-22).
Main charger
output terminal
B
C
Drum
grounding
terminal