Epson AcuLaser C2800 Service Manual page 145

AcuLaser C2800/C2800D/C3800/C3800D
FIP-P9 TONER SMUDGES ACROSS THE PRINTED PAGES
Symptom
Solid black circles 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 toner smudges
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 paper feed path
4
Is there any dirt on the path?
Check the connection of the ROS ASSY
5
Is the harness of the ROS ASSY securely
connected?
TROUBLESHOOTING
Symptom / Possible Parts
IMAGING CARTRIDGE (Y/M/C/K)
TRANSFER UNIT
FUSER UNIT
ROS ASSY
PWBA MCU
BOARD ASSY, MAIN
HVPS
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)
Clean the paper Go to Step [5].
feed path.
Go to Step [6]. Reconnect the
harness correctly.
Print Quality Trouble FIP
Step
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
End of procedure Replace the
(p.280) and make a test
Revision C
No
PWBA MCU.
(p.343)
145
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