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PCU (PHOTOCONDUCTOR UNIT)
- Toner Near End/End Detection -
V
T
determination
V
determination
TE
V
– V
T
1
V
No
∆V
No
2
Have 30 copies
been made?
No
Toner supply motor
on time calculation
(A193)
Copy
copy job been
detection
V
TREF
= ∆
TREF
VT
> V
T
TE
Yes
> 0
T
Yes
Yes
3
Have 50 copies
been made?
No
Toner End
Has the
Yes
finished?
4
No
V
> V
– 0.2
T
TE
Yes
Is this 5 or more
times in a row?
No
No
Toner supply motor
on time calculation
V
detection
T
No
V
> V
T
TE
Yes
Toner near end
Yes
2-40
No
Yes
Is this the 15th
time in a row?
Yes
A193D541.wmf
SM
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