FS-1030D Service Manual - kyocera

2G6
(4) Background is visible.
Causes
1. Defective print density setting.
2. Defective surface potential of the drum.
3. Defective developing roller.
Causes
1. Defective print density setting.
2. Defective surface potential of the drum.
3. Defective developing roller.
Check procedures/corrective measures
Open the printer top cover and check that the process unit is
correctly seated. Poor contact main
charger terminal between the process unit and the printer main unit.
The drum potential should be approximately 400 V. This may vary
depending on production lots.
Measurement is possible only by using the jig and tool specifically
designed for this purpose. The drum unit will have to be replaced if it
bears values far out of the allowable range.
If a process unit which is known to work normally is available for
check, replace the current process unit in the printer with the normal
one. If the symptom disappears, replace the process unit with a new
one.
(5) A white line appears
longitudinally.
Causes
1. Dirty or flawed main charger wire.
2. Foreign matter in the developing section.
3. Flawed drum.
Causes
1. Dirty or flawed main charger wire.
2. Foreign matter in the developing section.
3. Flawed drum.
Check procedures/corrective measures
Replace the process unit.
Replace the process unit.
Replace the process unit.
1-5-14