Phaser 6128MFP Service Manual 4-67
General Troubleshooting
Abnormal Noise and Electrical Problems
Abnormal Noise When Power is Turned On
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Imaging Unit (PL4.1.21)
■ Fuser (PL6.1.1)
■ Transfer Belt (PL6.1.7)
■ Sub Drive Assembly (PL7.1.1)
■ Main Drive Assembly (PL7.1.2)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Perform the Main Motor test (page 4-41):
Service Mode > Engine Diag > Motor
Test > Main Motor FULL2.
Is the noise still present?
Go to step 2. Go to step 5.
2 1. Reseat the Imaging Unit.
2. Perform the Main Motor test
(page 4-41): Service Mode > Engine
Diag > Motor Test > Main Motor
FULL2.
Is the noise still present?
Go to step 3. Complete
3 1. Reseat the Transfer Belt connectors.
2. Perform the Main Motor test
(page 4-41): Service Mode > Engine
Diag > Motor Test > Main Motor
FULL2.
Is the noise still present?
Go to step 4. Complete
4 1. Reseat the Main Drive Assembly.
2. Perform the Main Motor test
(page 4-41): Service Mode > Engine
Diag > Motor Test > Main Motor
FULL2.
Is the noise still present?
Try replacing
one after
another:
■ Imaging
Unit
(page 8-8)
■ Transfer
Belt
(page 8-103)
■ Main Drive
Assembly
(page 8-58).
Complete