43984801TH
Rev.1
28 /
Oki Data CONFIDENTIAL
2. Operational explanation
2.3 Toner entrance detection
• Equipment
Toner entrance detecting equipment consists the agitating gear that agitating the agitating bar at a
certain speed and magnet that is on the agitating bar.
Magnet
Agitating bar Agitating gear
Crack part
•
Operation
Detecting the toner low by monitoring the congruous time intervals between the magnet that is set on
the sensor plate and the magnet attached on the agitating bar,
Operation in toner full status
•
The crack part of agitating gear meshing with the
projection portion of agitating bar, the agitating bar
rotates in accordance with the rotating of gear.
•
Even after the magnet part of the agitating Bar reaches
the highest position, it still rotates at the same speed
by the pressure of the agitating gear due to the toner
resistance.
Agitating bar
Agitating bar
Agitating gear
Sensor plate
Sensor plate
Toner sensor
Operation in toner low status
•
When the magnet part of the agitating bar reaches the
highest position, because there is no resistance from
toner, the agitating bar drops earlier than the gear by
the gravity itself, and stops by that status.
For this reason, the time that the magnet of agitating
Bar magnetic attracts the magnet of sensor plate
becomes longer. The toner low status can be inspected
by monitoring this time.
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