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DEVELOPMENT
Toner Supply Motor On Time Determinations
For sensor control modes 1 and 2, the toner supply motor on time is decided by the
following factors.
• Vt
• Vref
• TD sensor sensitivity (coefficient: S, value is 0.4)
There are seven levels for toner supply motor on time as shown below.
Level
Vref < Vt ≤ S/16
1
Vref < Vt ≤ S/8
2
Vref < Vt ≤ S/4
3
Vref < Vt ≤ S/2
4
Vref < Vt ≤ 4S/5
5
Vt ≥ 4S/16
6
Vt ≥ Vref+S
7
NOTE: 1) (30) means that toner is supplied intermittently in a 1/3 duty cycle (1 s
on, 2 s off) for 30 seconds
Decision
2-20
Motor On Time (seconds)
0.6
1.2
2.4
4.8
9.6
(30); see note 3
(30); see note 3
1 October, 1999
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