Phaser 6180 Color Laser Printer Service Manual 5-39
Print-Quality Troubleshooting
11 Check the HVPS for correct 
installation. Reseat the HVPS.
Does the image quality improve?
Complete. Go to step 12.
12 Replace the Print Cartridge (page 8-9).
Does the image quality improve?
Complete. Go to step 13.
13 Replace the Fuser (page 8-10).
Does the image quality improve?
Complete. Go to step 14.
14 Replace the Laser Unit (page 8-50).
Does the image quality improve?
Complete. Replace the 
Image 
Processor 
Board 
(page 8-89).
If not, replace 
the MCU Board 
(page 8-87).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No