Oki LD670 Guía De Usuario página 159

4) The printer stops the adjustment in the following cases:
a. The cover is opened.
b. The printer has no paper.
c. The adjustment is completed.
5) After paper feeding stops, load the original paper again. The printer prints
the adjustment result.
6) The printer writes the adjustment result in memory, and then returns to the
previous state when sensor adjustment began.
7) If the adjustment failed, the printer prints "ADJUSTMENT FAILED" and
then returns to its state at the start of sensor adjustment.
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