5-36 Phaser 6125/6130 Color Laser Printer Service Manual
Print-Quality Troubleshooting
2 1.Remove the Imaging Unit.
2.Inspect the five Imaging Unit HV
connections.
Are the five HV terminals on the
Imaging Unit, and five springs on the
frame (PL4.1.10 and PL4.1.15 to 18)
dirty and/or deformed?
Clean and/or
replace the
Imaging Unit or
spring(s).
Go to step 3.
3 Reseat the Imaging Unit.
Is the image printed correctly?
Complete Go to step 4.
4 Reseat the Fuser.
Warning: Start the operation after the
Fuser has cooled down.
Is the image printed correctly?
Complete Go to step 5.
5 Reseat the connectors on the MCU
Board.
Is the image printed correctly?
Complete Go to step 6.
6 Reseat the connectors on the IP
Board.
Is the image printed correctly?
Complete Go to step 7.
7 Open and close the Front Cover to
reseat the Transfer Unit.
Is the image printed correctly?
Complete Go to step 8.
8 Check after reseating the HVPS Board
Reseat the HVPS Board.
Is the image printed correctly?
Complete Go to step 9.
9 Check the connections between the
Laser Unit and MCU Board.
Are P/J40, P/J 41, P/J411 and P/J 412
connected correctly?
Go to step 10. Reconnect the
connectors
securely, then
go to step 10.
10 Is the image printed correctly? Complete Go to step 11.
11 Replace the Imaging Unit (page 8-8).
Is the image printed correctly?
Complete Go to step 12.
12 Replace the Fuser (page 8-9).
Is the image printed correctly?
Complete Go to step 13.
13 Replace the IP Board (page 8-60).
Is the image printed correctly?
Complete Go to step 14.
14 Replace the Laser Unit (page 8-31).
Is the image printed correctly?
Complete Replace the
MCU Board
(page 8-59).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No