Utax P-4532DN - (1-8) Uneven density longitudinally

7-11
Troubleshooting ＞ Image formation problems
[CONFIDENTIAL]
(1-8)Uneven density longitudinally
Print example Cause of trouble
1 Dirty LSU inside
2 The transfer roller is not pressed against the drum properly.
3 Drum condensation.
Defective part Check description Corrective Action
1
Transfer roller unit Check that the transfer roller unit is
properly fit.
1. If it is not fixed properly, fix it properly.
2. Replace the transfer roller unit.
2
Drum unit 1. Check toner is evenly layered
on its surface.
2. Check whether the device has
been operated under a highly
humid environment.
1. Execute drum refreshing.
2. Install a cassette heater.
3. Replace the drum unit.
3
Developer unit Check that toner is evenly layered
on the developer roller.
Replace the developer unit.
4
LSU The emission of laser dispersed
from the LSU is not even. (Mirror is
dropped off inside.)
Replace the LSU.