AcuLaser C2800/C2800D/C3800/C3800D Revision C
TROUBLESHOOTING Print Quality Trouble FIP 141
Confidential
FIP-P5 HORIZONTAL WHITE BANDS APPEAR ON PRINTED PAGES
Before starting troubleshooting, inspect the paper feed path of the printer paper. Check
the paper feed path for metal staples, paper clips, paper scraps, and other foreign
matter.
Symptom / Possible Parts
Symptom
Horizontal white bands or faint colored bands appear on
the printed image.
Possible Parts
IMAGING CARTRIDGE (Y/M/C/K)
TRANSFER UNIT
FUSER UNIT
ROS ASSY
PWBA MCU
BOARD ASSY, MAIN
Step Check Yes No
1
Check the IMAGING CARTRIDGE (Y/M/
C/K)
Is the specified IMAGING CARTRIDGE (Y/
M/C/K) installed correctly?
Go to Step [2]. Replace the
specified
IMAGING
CARTRIDGE (Y/
M/C/K). (p.271)
2
Check the bands
Do they appear at regular intervals?
(Refer to the table in “3.5.2 Cycle of the Rollers
(p136) ”.)
Replace the
possible parts one
by one.
Go to Step [3].
3
Check the belt surface of the TRANSFER
UNIT
Is the belt surface recessed or deformed?
Replace the
TRANSFER
UNIT. (p.268)
Go to Step [4].
4
Check the laser beam path
Is there any foreign material between the ROS
ASSY and the IMAGING CARTRIDGE?
Remove the
foreign material.
Go to Step [5].
5
Check the connection of the ROS ASSY
Is the harness of the ROS ASSY securely
connected?
Go to Step [6]. Reconnect the
harness correctly.
6
Check after replacing the ROS ASSY
Replace the ROS ASSY (p.280) and make a test
print. Does the printing quality get back to
normal?
End of procedure Replace the
PWBA MCU.
(p.343)
Step Check Yes No
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