Xerox Phaser 6180 - Page 344

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