Oki LP-1040 Maintenance Manual page 568

7.
Start printing by selecting Start Print.
Three sheets of the plot are printed in succession.
8.
Measure the top edge alignment of the third printout and check that it falls within the standard
range.
If the measurement falls within the standard value range, save to the EEPROM.
If the measurement is outside the standard value range, restart the procedure starting from step
6 and try again.
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