Kyocera KM-1650 Service Manual page 157

2DA/2DB
(3) Image is too light.
Causes
1. Insufficient toner.
2. The transfer voltage is not output properly. Clean or check the transfer roller (see page 1-6-42).
3. Dirty main charger wire.
4. Dirty main charger grid.
(4) Background is visible.
Causes
1. The developing bias voltage is not prop-
erly.
2. Dirty main charger wire.
(5) A white line appears longitudinally. Causes
Causes
1. Dirty main charger wire.
2. Foreign matter in the developing unit.
3. Dirty shading plate.
1-5-28
Causes
1. Insufficient toner.
2. The transfer voltage is not output properly.
3. Dirty main charger wire.
4. Dirty main charger grid.
Check procedures/corrective measures
If the display shows the message requesting toner replenishment,
replace the container.
Clean the main charger wire or, if it is extremely dirty, replace the main
charger unit (see page 1-6-40).
Clean the main charger grid or, if it is extremely dirty, replace the main
charger unit (see page 1-6-40).
Causes
1. The developing bias voltage is not properly.
2. Dirty main charger wire.
Check procedures/corrective measures
Replace the high voltage PCB and check for correct operation.
Clean the main charger wire or, if it is extremely dirty, replace the main
charger unit (see page 1-6-40).
1. Dirty main charger wire.
2. Foreign matter in the developing unit.
3. Dirty shading plate.
Check procedures/corrective measures
Clean the main charger wire or, if it is extremely dirty, replace the main
charger unit (see page 1-6-40).
Check if the magnetic brush is formed uniformly. Replace the developing
unit if any foreign matter (see page 1-6-41).
Clean the shading plate.