Xerox Phaser 6180 Service Manual page 344

Print-Quality Troubleshooting
5-26
Troubleshooting Procedure Table (continued)
Step Actions and Questions
1. Perform Test Print (Cyan 20%,
3
Magenta 20%, Yellow 20%, and
Black 20%): Service Mode
Print.
2. Check the Print Cartridge (C/M/Y/K).
Is there a faint toner?
Check the Transfer Unit for correct
4
installation. Reseat the Transfer Unit.
Does the image quality improve?
5 Check the laser beam path.
Are there any debris between the Laser
Unit and Transfer Unit?
Check the Print Cartridge (C/M/Y/K)
6
for correct installation. Reseat the
Print Cartridge.
Does the image quality improve?
Perform Yellow/Magenta/Cyan/Black
7
Toner Motor test (Yellow, page 4-47;
Magenta, page 4-48; Cyan, page 4-49;
Black, page 4-50):
Engine Diag > Motor Test
Motor.
Does the Dispenser rotate smoothly?
8 Check the MCU Board for correct
installation. Reseat the MCU Board.
Does the image quality improve?
Check the Image Processor Board for
9
correct installation. Reseat the Image
Processor Board.
Does the image quality improve?
Check the HVPS for correct
10
installation. Reseat the HVPS.
Does the image quality improve?
11 Replace the Print Cartridge (page 8-9).
Does the image quality improve?
Replace the Laser Unit (page 8-50).
12
Does the image quality improve?
Yes
Go to step 4.
> Test
Complete.
Remove the
debris.
Complete.
Go to step 8.
Service Mode >
> Toner
Complete.
Complete.
Complete.
Complete.
Complete.
Phaser 6180 Color Laser Printer Service Manual
No
Complete.
Go to step 5.
Go to step 6.
Go to step 7.
Replace the
MCU Board
(page 8-87).
If not, replace
the Dispenser
(page 8-56).
Go to step 9.
Go to step 10.
Go to step 11.
Go to step 12.
Replace the
Image
Processor
Board
(page 8-89).