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4-130
Phaser 7700 Color Laser Printer Service Manual
Registration Control Procedures
Note
For the following procedures you must perform certain
steps prior to, during and after the tests are run. The
following information is vital to the process and must be
followed in order for each procedure to function properly.
If the adjusting screws reach their maximum adjustment range either
Clockwise or Counter Clockwise, center the adjusting position of the screws
and restart the RegiCon procedure. The adjusting screws have 18 complete
turns from fully CW to fully CCW. To adjust the screws to the center position,
turn the screw to either limit and then turn it back 9 complete turns.
Table 1 RegiCon Procedure
Step
Actions and Questions
Yes
No
1
Print the Grid 1-Dot print from Diagnostics.
Do all the colors align correctly? (This
means that all the colored lines will appear
merged when viewed with the naked eye. If
viewed under magnification all colors will
not overlap perfectly in all areas of the
page.)
Complete. The
color registration
problem is not
related to
RegiCon.
Go to step #2.
2
Perform the Reset Engine NVRAM
procedure (page 6-150) using the
ORIGINAL Hard Drive from the printer.
Reprint the Grid 1-Dot print from
Diagnostics.
Do all the colors align correctly?
Go to step #3.
Perform the
Coarse RegiCon
Initialization
procedure
(page 4-140). Go
to step #1.
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