Vertical Lines Appear Wavy - Xerox PHASER 8500 Service Manual

Vertical Lines Appear Wavy

Phaser 8400/8500/8550/8560 Color Printer Service Manual
Straight vertical lines appear to be wavy and ill-formed. This problem is likely
caused by too much oil on the Drum.
Initial Actions
■
Check the media used is supported by this printer.
■
Check that the paper path is clean and clear of debris.
Troubleshooting Reference
Applicable Parts
Drum Temperature Sensor
■
X-Axis Motor
■
Y-Axis Encoder
■
Drum Maintenance Pivot Plate
■
Drum Maintenance Camshaft
■
Wavy Vertical Lines Troubleshooting Procedure
Step Questions and Actions
Check and clean the Drum Maintenance Kit
1
wiper blade. Replace the kit if necessary.
Did this correct the problem?
Check X-Axis motion and verify there is
2
nothing interfering such as a poorly dressed
cable or screw. Replace any defective parts.
Did this correct the problem?
Test the Y-Axis Encoder.
3
1. Run the Service Diagnostics Y-Axis
Encoder test.
Is the Y-axis encoder working properly?
Print-Quality Troubleshooting
Example Print
Yes
Complete.
Complete.
Go to Step 4.
s8500-041
No
Go to Step 2.
Go to Step 3.
Clean the
Drum encoder
or replace the
Drum
Assembly.
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