Kyocera ECOSYS FS-C8650DN Service Manual

2MN/2N1
1-4-87
(3) Image is too light.
(4) The background is colored.
Print example Causes Check procedures/corrective measures
Defective
developer
bias output.
Defective developer unit. Run maintenance mode U089 to output four-
color bar PG, check the output status of the
four colors, and replace the developer unit for
any faulty color (see page 1-5-29).
Defective high voltage PWB
1.
Replace the high voltage PWB 1
(see page 1-5-54).
Defective engine PWB. Replace the engine PWB (see page 1-5-49).
Dirty drum unit. Perform the drum refresh.
Defective
transfer
bias output.
Defective high voltage PWB
2.
Replace the high voltage PWB 2
(see page 1-5-55).
Defective transfer belt unit. Replace the transfer belt unit (see page 1-5-
34).
Defective engine PWB. Replace the engine PWB (see page 1-5-49).
Defective color calibration. Perform the tone curve adjustment (Refer to
operation guide).
Insufficient toner. If the display shows the message requesting
toner replenishment, replace the container.
Insufficient agitation of toner container. Shake the toner container vertically approxi-
mately 10 times.
Paper damp. Check the paper storage conditions, replace
the paper.
Print example Causes Check procedures/corrective measures
Defective
developer
bias output.
Defective developer unit. Run maintenance mode U089 to output four-
color bar PG, check the output status of the
four colors, and replace the developer unit for
any faulty color (see page 1-5-29).
Defective high voltage PWB
1.
Replace the high voltage PWB 1
(see page 1-5-54).
Defective engine PWB. Replace the engine PWB (see page 1-5-49).
Defective color calibration. Perform the calibration (Refer to operation
guide).
Perform the tone curve adjustment (Refer to
operation guide).

Kyocera ECOSYS FS-C8650DN Specifications

General

Brand	Kyocera
Model	ECOSYS FS-C8650DN
Category	Printer
Language	English