Xerox PHASER 7500, Service Manual

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Phaser 7500 Printer Service Manual 6-5
Adjustments and Calibrations
Calibrations
Note
Some of the Service Diagnostics tests may not run multiple times. Be sure to
exit Service Diagnostics and re-enter Service Diagnostics to continue
performing the tests. If the printer locks up, re-set the GFI.
ATC Sensor Setup
ATC Sensor Setup allows a technician to perform the ATC Sensor sensitivity
adjustment for each color.
Input the barcode number that comes with each ATC Sensor, which indicates the
sensitivity characteristics, to calculate the "ATC Average Sensitivity Adjustment
Coefficient" and "ATC Average Sensitivity Adjustment Offset", which are the
sensitivity adjustment values for adjusting the ATC Sensor output. Set the values in
the NVM and display them on the LCD screen.
When the Developer has been replaced, perform this process.
Procedure
1. Enter Service Diagnostics ( page 4-9 ).
2. Scroll down the menu and select
Adjustments/ Calibrations
. Press the
OK
button.
3. Select ATC Sensor Setup and press the OK button.
4. Note the current values for the tag numbers on the Control Panel display. The
values should correspond to the tag numbers of the Developers currently
installed.
5. Select the color of the Developer you replaced.
6. Enter the tag number. Use the
Back
and
Help
buttons to select which digit
you want to change. Use the
Up
and
Down
buttons to modify the digit.
7. Press OK to enter the data in the Engine NVRAM.
8. Press any button to abort the process.