Phaser 6128MFP Service Manual 5-21
Print-Quality Troubleshooting
6 Reseat all IP Board connectors.
Is the image printed correctly?
Complete Go to step 7.
7 Open and close the Front Cover to
reseat the Transfer Belt.
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 8-11).
Is the image printed correctly?
Complete Go to step 13.
13 Replace the IP Board (page 8-41).
Is the image printed correctly?
Complete Go to step 14.
14 Replace the Laser Unit (page 8-98).
Is the image printed correctly?
Complete Replace the
MCU Board
(page 8-57).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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