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Phaser 6280 Color Laser Printer Service Manual
5-31
Print-Quality Troubleshooting
5
1. Check the Transfer Unit for correct
installation. Reseat the Transfer Unit
(page 8-8).
2. Does the image quality improve?
Complete.
Go to step 6.
6
1. Check for debris in the laser beam
path between the Laser Unit and
Transfer Unit.
2. Are there debris in the laster beam
path?
Remove the
debris.
Go to step 7.
7
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 8.
Reconnect the
connectors.
Go to step 8.
8
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 9.
9
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 10.
10
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 11.
11
1. Check the HVPS for correct
installation. Reseat the HVPS
(page 8-61).
2. Does the image quality improve?
Complete.
Go to step 12.
12
1. Replace the Print Cartridge
2. Does the image quality improve?
Complete.
Go to step 13.
13
1. Replace the Laser Unit (page 8-50).
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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Страница 433: ...6 Chapter Adjustments and Calibrations In this chapter Adjustments Calibrations Parameter Setting...
Страница 441: ...7 Chapter Cleaning and Maintenance In this chapter Service Maintenance Procedure Cleaning Maintenance...
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