Gp 21 Video Check - Xerox FaxCentre 2121 Service Manual

General Procedures and Information

GP 21 Video Check

First calibrate the scanner. To do so, use the following procedure:
1. Place a blank sheet of paper in the document input tray.
2. Enter the key sequence MENU, *, a, and validate by pressing OK.
3. Wait until the machine restarts.
4. Make some copies with the CIS and check that the quality of the copies is satisfactory.
5. In the case of a scanner problem, repeat the calibration procedure above.
6. In the case of a printer problem (the result remains unsatisfactory after scanner calibration):
a. Print the logs to check the printer component of the machine.
b. Check the consumable.
7. To further evaluate the image quality, run a dark dusting.
8. Ensure that SOS1, Bit 8 is set to 1.
9. Press the # key to print the shading pattern, then check for any defects.
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