Oki LD670 User Manual page 166

5) The printer stops the adjustment in the following case:
a. The adjustment is completed.
6) After the adjustment ends, load the original paper again. The printer prints
the adjustment result.
7) The printer writes the adjustment result in memory, and then returns to the
previous state when sensor adjustment began.
8) 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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