Phaser 6180 Color Laser Printer Service Manual 4-77
General Troubleshooting
8 Check the Print Cartridges for correct 
installation. Reseat the Print Cartridges. 
Does the noise still occur?
Go to step 9. Complete.
9 Check the Duplex Unit. Does the noise 
come from the Duplex Unit while paper is 
feeding?
Go to step 10. Go to step 11.
10 Check the Duplex Unit for correct 
installation. Reseat the Duplex Unit. Does 
the noise still occur?
Replace the 
Duplex Unit 
(page 8-94).
Complete.
11 Perform the Duplex Motor test (page 4-44): 
Service Mode > Engine Diag > Motor Test 
> Duplex Motor.
Does the noise come from the printer?
Replace the 
Duplex Unit 
(page 8-94).
Complete.
12 Check the Main Drive for correct 
installation. Reseat the Main Drive. Does 
the noise still occur?
Go to step 13. Complete.
13 Check the Drive Assembly for correct 
installation. Reseat the Drive Assembly. 
Does the noise still occur?
Go to step 14. Complete.
14 Perform the Main Motor test (page 4-40): 
Service Mode > Engine Diag > Motor Test 
> Main Motor. Does the noise come from 
the motor?
Replace the 
Main Drive 
(page 8-73).
Go to step 15.
15 Perform the Deve Motor test (page 4-43): 
Service Mode > Engine Diag > Motor Test 
Deve Motor. Does the noise come from the 
motor?
Replace the 
Main Drive 
(page 8-73).
Go to step 16.
16 Perform the Sub Motor test (page 4-41): 
Service Mode > Engine Diag > Motor Test 
Sub Motor. Does the noise come from the 
motor?
Replace the 
Main Drive 
(page 8-73).
Go to step 17.
17 Perform the Tray 2 Motor test (page 4-42): 
Service Mode > Engine Diag > Motor Test 
Tray 2 Motor. Does the noise come from the 
motor? 
Replace the 
Drive 
Assembly 
(page 8-76).
Complete, if 
Tray 3 is 
installed. Go 
to step 17.
18 Perform the Tray 3 Feed Motor test 
(page 4-45): Service Mode > 
Engine Diag 
> Motor Test > Tray 3 Motor. Does the noise 
come from the motor?
Replace the 
Optional 550-
Sheet Feeder 
(page 8-96).
Complete.
Troubleshooting Procedure Table  (continued)
Step Actions and Questions Yes No