Xerox 7142 Service Manual page 158

5 Self-Diagnosis Mode
4. If any abnormal conditions are found, identify the gap of the print positions and enter it as the CW
adjustment parameter.
After entering the parameter, print out the check patterns again as necessary.
(The following shows a case for CCW adjustment Low 1)
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Assumed center
position A
Head Gap change
Media set
Finish media initialization
Finish printing
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5-40
RJ-901C/RJ-900C Maintenance Manual
Gap A
Assumed Center
Position B
If the head height alignment does not
meet the specification of the adjustment item.
If media is not set
Displayed during adjustment printing
Press [Setting/value +] or [Setting/value -]
key to input value
1 pulse (= 1/720 inch) increments