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EXPOSURE
3.5.2 ADS Control
Vod/Vsd
0 ~ 0.18
0.19 ~ 0.46
0.47 ~ 0.49
0.50 ~ 0.53
0.54 ~ 0.57
0.58 ~ 0.61
0.62 ~ 0.65
VS:
VOD: Original Density Detecting Voltage
VSD: Standard Pattern (White Plate) Density Detecting Voltage
When automatic image density sensing (ADS) is used, the exposure light
intensity varies depending on the background image density of the original.
The preceding table shows how the exposure light intensity changes
depending on the VOD/VSD ratio.
Use service program mode #10 to select the default ID setting. It can be set
to ADS or Manual ID level 7. The factory setting is ADS.
NOTE: If the exposure lamp cannot output sufficient light, service call
condition "Exposure Lamp Abnormal" appears. However, copying is
still possible. Refer to the "SERVICE CALL CONDITIONS" table.
VS [V]
1.74
1.74
1.64
1.54
1.45
1.37
1.29
Light Sensor Voltage
Vod/Vsd
0.66 ~ 0.69
0.70 ~ 0.73
0.74 ~ 0.75
0.76 ~ 0.80
0.81 ~ 0.88
0.89 ~
2-12
31 December 1992
VS [V]
1.21
1.15
1.05
1.05
0.94
0.86
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