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Phaser 7700 Color Laser Printer Service Manual
4-127
Processes of the RegiCon Adjustment
RegiCon is an engine resident algorithm that aligns the Magenta, Yellow, and
Black lasers to the Cyan laser. Normally, the RegiCon procedure only needs
to be performed if the Laser Unit has been replaced.
The RegiCon procedures are listed in the Adjustment/Calibration Menu of
Service Diagnostics as RegiCon 685 Setup Cycle, and are split into several
sections. The should be performed in the order listed, for optimal adjustments.
The test procedures should be performed in the following order. Each test
must be successful before proceeding to the next. Refer to the RegiCon
Flowchart on page 4-133.
Check Print-quality
RegiCon will fail if there are any print-quality problems or if the MOB Sensor is
not functioning correctly.
1.
Select the Print Halftone pages from diagnostics and examine the page for
any print-quality problems. Diagnose and repair any print-quality problems
before running any RegiCon procedure.
2.
Exame the shutter on the MOB Sensor and verify that it is not dislodged
and moves freely without contacting any other parts.
3.
If RegiCon appears to run correctly, but “No Results” is displayed, one of
the Sensors on the MOB Sensor Assembly or the Laser could have failed,
or the usrstart_del snippet needs to be downloaded to the hard drive.
Note
The preferred method to correct any color registration
issues is to follow the Reset Engine NVRAM procedure
(page 6-150). This will write the stored, original, printer
specific RegiCon values from the Hard Drive to Engine
NVRAM. If this does not restore Proper Printer Color
Registration, then proceed with RegiCon Adjustments.
Preparation for RegiCon
1.
Use the Front Panel connection setup menu to disable Netware.
2.
Flip the Dip Switch #2 on the printer’s rear panel Down (this disables the
Startup Page and enables the printer to write test results to the print engine
NVRAM).
3.
Disconnect any parallel or network cables from the rear panel of the printer.
4.
If a Finisher is installed, disconnect the two cables to the printer and slide
the Finisher away from the printer.
Note
Remember to wait until the printer displays “Ready to
Print,” plus 10 seconds, after each of the 685-x tests are
run before power cycling printer to display results in
diagnostics. Failure to wait long enough will result in a
“No Results” message.
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