Epson AcuLaser C2900N - Page 163

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Chapter 1 Troubleshooting
Epson AcuLaser C2900N
Revision B
Confidential
4
Checking the laser beam path.
Are there any foreign substances between the ROS ASSY
and DRUM CARTRIDGE?
Remove the
foreign
substances.
Go to step 5.
5
Checking the DRUM CARTRIDGE for connection.
Remove the DRUM CARTRIDGE.
Are five HV terminals on the DRUM CARTRIDGE, and five
springs on the frame (PL4.1.10 and PL4.1.15 to 18) dirty
and/or deformed?
Clean and/or
replace the DRUM
CARTRIDGE or
SPRING(s).
Go to step 6.
6
Checking the ROS ASSY for connection.
Check the connections between the ROS ASSY and PWBA
MCU.
Are P/J40, P/J 41, P/J411 and P/J 412 connected correctly?
Go to step 8.
Reconnect the
connector(s) P/
J40, P/J41, P/J411
and/or P/J412
surely, then go to
step 7.
7 Is the image printed correctly? End of work. Go to step 8.
8
Checking after replacing the ROS ASSY.
Replace the ROS ASSY. (Refer to RRP4.1.)
Is the image printed correctly?
End of work. Go to step 9.
Step Check
Remedy
Yes No