Toner End Detection - Ricoh FT5233 Service Manual

12 February 1992

7.4 TONER END DETECTION

0 1
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5
Toner Toner
End Level End Level
1/10 1/5
7.5% 7.5%
15% 15%
30% 30%
60% 60%
Black
7% 7
14% 14
21% 21
28% 28
Color
Confirming
Cycle
This copier uses an ID sensor to detect the toner end condition for black and
color toner.
When the CPU detects the toner end level from the ID sensor data, the
copier goes to toner end detect mode.
Toner End Level
The process of the toner end detect mode is shown above.
When the ID sensor data reaches the toner end level, the detection mode
changes from once every 10 to once every 5 copies.
Also the ID sensor level parameter increases by 1 step (1→2).
2 3
Toner Toner
End Level End Level
1/5 1/5
7.5% 15%
15% 30%
30% 60%
60% 60%
14
7
14 21
28 28
28 28
ID Sensor Data
(Vsp/Vsg x 100%)
Black 15.0~49.9
Color 31.0~49.9
2-65
4 5
Toner Toner
End Level End Level
1/5 1/5 1/5
60% 60%
30%
60%
60%
60%
21 28 28
28 28
28
TONER SUPPLY
6
1 2 49 50
Toner
End Level
1/5 ......
12 9 10
Blinks
Lights