Phaser 6280 Color Laser Printer Service Manual 5-57
Print-Quality Troubleshooting
4 1. Check the parameter value.
2.Did the client change the value of
the registration parameter?
Reset the value
to default.
Go to step 5.
5 1. Check the Front Cover Latch. Open
and close the Front Cover.
2.Does the image quality improve?
Complete. Go to step 6.
6 1. Check the Transfer Unit for correct
installation. Reseat the Transfer Unit
(page 8-8).
2.Does the image quality improve?
Complete. Go to step 7.
7 1. Check the Print Cartridge (C/M/Y/K)
for correct installation. Reseat the
Print Cartridge (page 8-10).
2.Does the image quality improve?
Complete. Go to step 8.
8 1. Perform the Regi Clutch test
(page 4-51): Service Mode >
Engine Diag > Motor Test > Regi
Clutch.
2.Does the Registration Clutch
operate properly?
Replace the
MCU Board
(
page 8-86).
Replace the
Feeder
Assembly
(
page 8-36).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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