Epson AcuLaser C4000 Service Manual page 268

EPSON AcuLaser C4000/C4100/C3000
Item
ROS Assy (PL11.1.1)
1. Cover half of the laser beam output window of the ROS Assy (PL11.1.1) with a piece of
3 paper.
2. Carry out a test print.
Is the printout half white and half black?
Troubleshooting
Check
Level 2 FIP
Yes
Replace the ROS Assy. Replace the PWBA MCU &
(Refer to Ch4-4.2.14.1) HVPS. (Refer to Ch4-4.2.18.1)
Revision F
No
3-252