5-42 Phaser 6180 Color Laser Printer Service Manual
Print-Quality Troubleshooting
Random Spots
There are spots of toner randomly scattered across the page.
Initial Actions
■ Check the paper transfer path.
■ Ensure there are no debris on the transfer path.
arn
ng
Ensure to wait for the Fuser to cool down before starting the procedure.
Troubleshooting Reference Table
Applicable Notes Example Print
■ Transfer Unit, PL4.1.1
■ Print Cartridge (C/M/Y/K),
PL5.1.18-21
■ Laser Unit, PL5.1.2
■ Fuser, PL6.1.10
■ MCU Board, PL9.1.20
■ Image Processor Board, PL9.1.27
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Check for spot’s regular intervals. Are 
there any spots on the page?
Refer to “The 
following table 
lists the print-
quality defect 
corrective 
procedure, their 
definition, and 
the page where 
each procedure 
is provided.” on 
page 5-23.
Go to step 2.
ABCDE abcde 12345
s6180-325