DEVELOPMENT
1 October, 1999
2-20
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
Decision
Motor On Time (seconds)
1
Vref < Vt
≤
S/16
0.6
2
Vref < Vt
≤
S/8
1.2
3
Vref < Vt
≤
S/4
2.4
4
Vref < Vt
≤
S/2
4.8
5
Vref < Vt
≤
4S/5
9.6
6
Vt
≥
4S/16
(30); see note 3
7
Vt
≥
Vref+S
(30); see note 3
NOTE: 1) (30) means that toner is supplied intermittently in a 1/3 duty cycle (1 s
on, 2 s off) for 30 seconds
