Epson AcuLaser C2800 Service Manual page 141

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