Phaser 6280 Color Laser Printer Service Manual
5-27
Print-Quality Troubleshooting
5
1. Check the laser beam path.
2. Are there any debris between the
Laser Unit and Transfer Unit?
Remove the
debris.
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. Perform Yellow/Magenta/Cyan/Black
Toner Motor test (Yellow, page 4-47;
Magenta, page 4-48; Cyan,
page 4-49; Black, page 4-50):
Service Mode
>
Engine Diag
>
Motor Test
>
Yellow/Magenta/
Cyan/Black Toner Motor
.
2. Does the Dispenser Assembly rotate
properly?
Go to step 9.
Replace the
MCU Board
(page 8-86).
If not, replace
the Dispenser
Assembly
(page 8-56).
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 Laser Unit (page 8-50).
2. Does the image quality improve?
Complete.
Replace the
Image
Processor
Board
(page 8-87).
Troubleshooting Procedure Table (continued)
Step
Actions and Questions
Yes
No
Summary of Contents for Phaser 6280
Page 1: ...Phaser 6280 Color Laser Printer Phaser 6280 Service Manual...
Page 2: ......
Page 15: ...Phaser 6280 Color Laser Printer Service Manual xiii...
Page 16: ...xiv Phaser 6280 Color Laser Printer Service Manual...
Page 26: ...xxiv Phaser 6280 Color Laser Printer Service Manual Table of Contents...
Page 62: ...1 36 Phaser 6280 Color Laser Printer Service Manual General Information...
Page 288: ...3 152 Phaser 6280 Color Laser Printer Service Manual Error Messages and Codes...
Page 432: ...5 58 Phaser 6280 Color Laser Printer Service Manual Print Quality Troubleshooting...
Page 558: ...8 112 Phaser 6280 Color Laser Printer Service Manual Service Parts Disassembly...
Page 670: ...I 10 Phaser 6280 Color Laser Printer Service Manual...
Page 671: ......