Color Mis-Registration - Xerox 7300B - Phaser Color Laser Printer Service Manual

Color Mis-Registration

Troubleshooting Procedure
Step Check
1 Cycle power to the printer. This will perform a
Color Registration Calibration.
Did this correct the problem?
2 Load media long-edge feed into Tray 1 or the
MPT.
Print the Supplies Page and hold the print out in
a portrait orientation to evaluate:
Are the colors shifted left to right?
3 Process Direction:
Remove the Imaging Units and Transfer Unit.
Inspect the registration sensors for dirt, debris
or toner build-up.
Are the sensors clean and free from debris?
4 Verify the Color Registration Shutter opens and
closes by actuating the registration shutter
solenoid from service diagnostics.
Is the shutter functioning correctly?
5 Inspect the Transfer Unit for tears or damage
on the edges of the belt.
Is the belt damaged?
6 Visually inspect the Imaging Unit drive gears for
missing or worn gear teeth.
Use service diagnostics to run the Imaging Unit
Motors test to visually inspect the gears.
Are the gears working correctly?
Troubleshooting
The image appears blurred and the primary
colors are not aligning correctly into one image.
For a page oriented Long-Edge Feed, as the one
shown here, the following applies:
If the colors are shifted from left to right, this is
mis-registration in the process direction.
If the colors are shifted from top to bottom, this
is mis-registration in the scan direction.
7300-033
.
Yes No
Complete Go to step [2].
Go to step [3] Go to step [9].
Go to step [4]. Clean the
sensors.
Go to step [5]. Replace the
solenoid and
wiring harness.
Replace Go to step [6].
Transfer Unit
Go to step [7]. Replace the
Imaging Unit
Drive Gear.
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