OKIDATA OF1050, Service Manual

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• Operation during toner low state
When the stirring bar reaches the maximum height, since there is no resistance provided by the toner on
the other side, it falls to the minimum height due to its own weight. Because of this, the time interval during
which it is in encounter with the magnet of the sensor lever becomes long. By monitoring this time interval,
toner low can be detected.
Low Toner Alarm
A check for low toner is carried out at all times when the drum is rotating.
• The toner sensor is not monitored while the drum motor is not rotating.
TONER FULL state
TONER LOW state
• When the toner low state is detected 2 times consecutively, Toner Low is established.
• When the toner full state is detected 2 times consecutively, Toner Low is canceled.
• When there is no change with the toner sensor for 2 cycles (6.5 sec. x 2) or more, then the Toner
Sensor Alarm is activated.
Printing Speed T t1 (Toner Exists) Remarks