Phaser 6280 Color Laser Printer Service Manual
5-47
Print-Quality Troubleshooting
5
1. Check the paper path.
2. Are there any toner contaminations
on the paper path?
Clean the paper
path.
Go to step 6.
6
1. Check the wiring harness
connectors P/J12 and P/J151
between the Laser Unit and the MCU
Board.
2. Are the connectors securely
connected?
Go to step 7.
Reconnect the
connectors.
Go to step 7.
7
1. Check the Print Cartridge (C/M/Y/K)
for correct installation. Reseat the
Print Cartridge (page 8-10).
2. Does the image quality improve?
Complete.
Go to step 8.
8
1. Check the MCU Board for correct
installation. Reseat the MCU Board
(page 8-86).
2. Does the image quality improve?
Complete.
Go to step 9.
9
1. Check the Image Processor Board
for correct installation. Reseat the
Image Processor Board
(page 8-87).
2. Does the image quality improve?
Complete.
Go to step 10.
10
1. Check the HVPS for correct
installation. Reseat the HVPS
(page 8-61).
2. Does the image quality improve?
Complete.
Go to step 11.
11
1. Replace the Print Cartridge
2. Does the image quality improve?
Complete.
Replace the
Image
Processor
Board
(page 8-87).
If not, replace
the MCU Board
(page 8-86).
Troubleshooting Procedure Table (continued)
Step
Actions and Questions
Yes
No
Содержание Phaser 6280
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