4-78 Phaser 6280 Color Laser Printer Service Manual
General Troubleshooting
4 1. Check the paper condition.
2.Replace the paper.
3.Does the noise still come from the
printer?
Replace the
following
parts:
â– Tray 2
Retard Roll
(page 8-29)
â– Tray 2 Feed
Roll
(page 8-47)
â– Tray 2
Feeder
Assembly
(page 8-36)
Complete.
5 1. Check the Duplex Unit.
2.Does the noise come from the Duplex
Unit while paper is feeding?
Go to step 6. Go to step 8.
6 1. Check the Duplex Unit for correct
installation.
2.Reseat the Duplex Unit (page 8-99).
3.Does the noise come from the Duplex
Unit while paper is feeding?
Replace the
Duplex Unit
(
page 8-99).
Go to step 7.
7 1. Perform the Duplex Motor test
(page 4-44): Service Mode > Engine
Diag > Motor Test > Duplex Motor.
2.Does the noise come from the printer?
Replace the
Duplex Unit
(
page 8-99).
Complete.
8 1. Check the Fuser for correct installation.
Reseat the Fuser (page 8-11).
2.Does the noise still occur?
Go to step 9. Complete.
9 1. Check the Transfer Unit for correct
installation. Reseat the Transfer Unit
(page 8-8).
2.Does the noise still occur?
Go to step 10. Complete.
10 1.Check the Print Cartridges for correct
installation. Reseat the Print Cartridges
(page 8-10).
2.Does the noise still occur?
Go to step 10. Complete.
11 1.Check the Main Drive Assembly for
correct installation. Reseat the Main
Drive Assembly (page 8-70).
2.Does the noise still occur?
Go to step 12. Complete.
12 1.Check the PH Drive Assembly for correct
installation. Reseat the PH Drive
Assembly (page 8-73).
2.Does the noise still occur?
Go to step 13. Complete.
13 1.Perform the Main Motor test (page 4-41):
Service Mode > Engine Diag > Motor
Test > Main Motor.
2.Does the noise come from the motor?
Replace the
Main Drive
Assembly
(
page 8-70).
Go to step 14.
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No