Xerox Phaser 6180 Service Manual page 346

Print-Quality Troubleshooting
5-28
Troubleshooting Procedure Table (continued)
Step Actions and Questions
4 Check the Transfer Unit for correct
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 wiring harness connectors
6
P/J12 and P/J151 between the Laser
Unit and the MCU Board.
Are the connectors securely
connected?
Check the Print Cartridge (C/M/Y/K)
7
for correct installation. Reseat the
Print Cartridge.
Does the image quality improve?
8 Perform Yellow/Magenta/Cyan/Black
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 properly?
Check the MCU Board for correct
9
installation. Reseat the MCU Board.
Does the image quality improve?
10 Check the Image Processor Board for
correct installation. Reseat the Image
Processor Board.
Does the image quality improve?
11 Check the HVPS for correct
installation. Reseat the HVPS.
Does the image quality improve?
Replace the Laser Unit (page 8-50).
12
Does the image quality improve?
Yes
Complete.
Remove the
debris.
Go to step 7.
Complete.
Go to step 9.
Service Mode >
> Toner
Complete.
Complete.
Complete.
Complete.
Phaser 6180 Color Laser Printer Service Manual
No
Go to step 5.
Go to step 6.
Reconnect the
connectors.
Go to step 7.
Go to step 8.
Replace the
MCU Board
(page 8-87).
If not, replace
the Dispenser
(page 8-56).
Go to step 10.
Go to step 11.
Go to step 12.
Replace the
Image
Processor
Board
(page 8-89).