4-76 Phaser 6180 Color Laser Printer Service Manual
General Troubleshooting
Abnormal Noise During Printing
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Retard Roll (Separator), PL2.1.7
■ MPT Feed Roll, PL3.1.10
■ Turn Roll, PL3.2.32
■ Feed Roll, PL3.2.53
■ Retard Roll, PL2.2.17
■ Feed Roll, PL12.1.9
■ Retard Roll, PL12.3.10
■ Metal Regi Roll, PL3.2.6
■ Rubber Regi Roll, PL3.2.7
■ Transfer Unit, PL4.1.1
■ Print Cartridge (C/M/Y/K),
PL5.1.18-21
■ Fuser, PL6.1.10
■ Main Drive, PL8.1.2
■ Drive Assembly, PL8.1.7
■ Duplex Unit, PL11.1.1
■ Optional 550-Sheet Feeder, PL12.1.1
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check Tray 1 (MPT). Does the noise come 
from Tray 1 when paper feed from Tray 1?
Go to step 2. Go to step 3.
2 Check the paper condition. Replace the 
paper. Does the noise still occur?
Replace the 
Tray 1 (MPT) 
Feed Roll, 
Retard Roll, 
and Turn Roll.
Complete.
3 Check the Feeder for abnormal noise. Does 
the noise come from the Feeder while paper 
is feeding?
Go to step 4. Complete.
4 Check the paper condition. Replace the 
paper. Does the noise still come from the 
printer?
Go to step 5. Complete.
5 Replace the Feed Roll, Retard Roll, and the 
Feeder (page 8-43). Does the noise still 
occur?
Go to step 6. Complete.
6 Check the Fuser for correct installation. 
Reseat the Fuser. Does the noise still 
occur?
Go to step 7. Complete.
7 Check the Transfer Unit for correct 
installation. Reseat the Transfer Unit. Does 
the noise still occur?
Go to step 8. Complete.