Oki PAGE 18, Service Manual, Page: 58 / 395

Operating during toner low state
When the stirring bar reaches the
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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.
When the toner low state is detected 2 times consecutively, Toner Low is established.
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When the toner full state is detected 2 times consecutively, Toner Low is canceled.
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When there is no change with the toner sensor for 2 cycles (2.727 sec. x 2) or more, then the
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Toner Sensor Alarm is activated.
The toner sensor is not monitored while the drum motor is in halt.
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