Ricoh FT5034 Service Manual page 59

9. Bias Voltage
1. Bias Control Signals and Output Voltage (without Temperature Compensation)
CN101-B18
NO
Bias 4
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 0
2. Bias for Sensor Pattern
When the sensor pattern is developed, the ID sensor bias is applied at +470 volts
and stays constant at +260 volts in non image timing.
CN101-B19 CN101-A18
Bias 3 Bias 2
0 0
0 1
0 1
1 0
1 0
1 1
1 1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
0 0
non image
ID Sensor Pattern
CN101-A19
Bias 1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
ID Sensor Bias
470 V
260 V
image
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Output
Notch
(V)
200
230
260 3 ~ 6
290 2
320 1,7
350
380
410
440
500
500
530
560
590
620
0
ADS
2.6 ~
2.16 ~ 2.6
1.65 ~ 2.16
~ 1.65