Ricoh FW870, User Manual, Page: 31 / 206

3.5.2 ADS Control
V
OD
/V
SD
VS [V] V
OD
/V
SD
VS [V]
0~0.45 3.118 0.64~0.65 2.020
0.46~0.47 2.922 0.66~0.67 1.922
0.48~0.49 2.824 0.68~0.69 1.882
0.50~0.51 2.725 0.70~0.71 1.843
0.52~ 0.53 2.627 0.72~0.73 1.745
0.54~0.55 2.529 0.74~0.75 1.627
0.56~0.57 2.412 0.76~0.80 1.510
0.58~0.59 2.314 0.81~0.84 1.412
0.60~0.61 2.216 0.85~0.88 1.373
0.62~0.63 2.118 0.89~ 1.333
VS: Light Sensor Voltage
V
OD
: Original Density Detecting Voltage
V
SD
: 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 V
OD
/V
SD
ratio.
Use user program mode to select the default ID setting. It can be set to ADS
or Manual ID. The factory setting is ADS.
EXPOSURE 25 July 1996
2-16