January 2010
4-104
Phaser 7760 Color Laser Printer
ADJ 9.11
Revised
Repairs and Adjustments
ADJ 9.11 RegiCon #1 Fine Skew Adjustment
Purpose
This process uses sensors to examine the RegiCon image on the Belt and report what adjust-
ments need to be made. A side effect of this test is that horizontal and vertical alignments are
automatically done (if the test passed).
The data output presents the skew screw adjustment values (some number of clicks of the
screw, either CW or CCW direction). Values less than 5 or so are noise and should not need to
be adjusted.
Procedure
1. Enter the hidden Service Menu: Printer Menu > Troubleshooting > Service Tools >
Printer Status Page > hold the Up and Down buttons simultaneously > RegiCon Setup
Cycle > OK.
NOTE: The first time any RegiCon test is requested, the pages used to perform the test
must be created, so there is a short delay. During this time, the Control Panel displays
Processing Data - Please Wait.
2. Select Do #1: Fine Skew Setup and press OK. The Control Panel displays: Testing -
Please Wait.
3. Wait until the test results are displayed as follows:
Fine Skew Setup
Passed
Min A Blocks: 24
Min B Blocks: 4
Yellow 1 Click CWW
Magenta 2 Clicks CW
Cyan 12 Clicks CCW
Black 7 Clicks CCW
NOTE: Only 5 lines will be displayed at a time under the Information header. Use the
arrow buttons to scroll down or up as required to see the rest of the data.
NOTE: If the block counts are not the same number as presented here, the printer has a
print-quality problem. Refer to Streaks in Direction of Paper Travel procedure (Section 3)
to resolve the print-quality problems before proceeding further with RegiCon.
4. If an adjustment is needed, adjust by the amounts displayed on the Control Panel until all
clicks displayed are 5 or less.
NOTE: Adjustment screws are located behind the Waste Cartridge, which must be
removed for access. From left to right, the adjustment screws are: K, C, M, and Y.
Figure 1 Adjustment Screws
5. After 2 minutes, the test selection menu will re-appear. To examine the test results after
this occurs, highlight the appropriate test and select Information Setup.
When RegiCon #1 Fails
Refer to RegiCon #4 Coarse Skew Adjustment procedure, ADJ 9.14 (Section 4).
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