Xerox Phaser 6280 Service Manual page 416

Print-Quality Troubleshooting
5-42
Troubleshooting Procedure Table (continued)
Step Actions and Questions
4 1. Check the Transfer Unit for correct
installation. Reseat the Transfer Unit
(page 8-8).
2. Does the image quality improve?
1. Check the Fuser Assembly for
5
correct installation. Reseat the Fuser
Assembly (page 8-11).
2. Does the image quality improve?
6 1. Check the paper path.
2. Are there any toner contaminations
on the paper path?
1. Check the wiring harness
7
connectors P/J12 and P/J151
between the Laser Unit and the MCU
Board.
2. Are the connectors securely
connected?
1. Check the Print Cartridge (C/M/Y/K)
8
for correct installation. Reseat the
Print Cartridge (page 8-10).
2. Does the image quality improve?
9 1. Check the MCU Board for correct
installation. Reseat the MCU Board
(page 8-86).
2. Does the image quality improve?
1. Check the Image Processor Board
10
for correct installation. Reseat the
Image Processor Board
(page 8-87).
2. Does the image quality improve?
11 1. Check the HVPS for correct
installation. Reseat the HVPS
(page 8-61).
2. Does the image quality improve?
1. Replace the Print Cartridge
12
(page 8-10).
2. Does the image quality improve?
13 1. Replace the Laser Unit (page 8-50).
2. Does the image quality improve?
Yes
Complete.
Complete.
Clean the paper
path.
Go to step 8.
Complete.
Complete.
Complete.
Complete.
Complete.
Complete.
Phaser 6280 Color Laser Printer Service Manual
No
Go to step 5.
Go to step 6.
Go to step 7.
Reconnect the
connectors.
Go to step 8.
Go to step 9.
Go to step 10.
Go to step 11.
Go to step 12.
Go to step 13.
Replace the
Image
Processor
Board
(page 8-87).
If not, replace
the MCU Board
(page 8-86).