Kyocera Copystar CS 3011i Service Manual page 364

(2) No image appears (entirely black).
Print example
No main
charging.
Exposure
lamp fails to
light.
The laser
scanner unit
beams con-
tinuously.
(3) Image is too light.
Print example
Defective
transfer
charger out-
put.
Insufficient toner.
Deteriorated toner.
Causes
Defective connector cable
or poor contact in the con-
nector.
Defective charger roller unit. Replace the charger roller unit
Defective high voltage
PWB.
Defective engine PWB.
Defective connector cable
or poor contact in the con-
nector.
Defective CCD PWB.
Defective engine PWB.
Defective connector cable
or poor contact in the con-
nector.
Defective laser scanner
unit.
Defective engine PWB.
Causes
Defective connector cable
or poor contact in the con-
nector.
Defective high voltage
PWB.
Defective engine PWB.
1-4-71
Check procedures/corrective measures
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
High voltage PWB and engine PWB (YC19)
(see page 1-5-23).
Replace the high voltage PWB
(see page 1-5-66).
Replace the engine PWB (see page 1-5-59).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
LED PWB and CCD PWB (YC2)
CCD PWB and engine PWB (YC29)
Replace the image scanner unit
(see page 1-5-34).
Replace the engine PWB (see page 1-5-54).
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
APC PWB and engine PWB (YC4)
Replace the laser scanner unit.
Replace the engine PWB.
Check procedures/corrective measures
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
High voltage PWB and engine PWB (YC19)
Replace the high voltage PWB
(see page 1-5-66).
Replace the engine PWB (see page 1-5-59).
If the display shows the message requesting
toner replenishment, replace the container.
Perform the drum refresh operation.
2RG/2RH