Ricoh D131 Service Manual page 632

3902 Drum Condition Display
1 Auto Process Control On/Off
Displays whether auto process control is switched on or off (0:Off, 1:On)
When auto processing control is turned on, displays only when the potential
sensor is calibrated correctly. Auto process control is not executed when this
SP is switched off.
[0 to 1/1/1]
0: Off
1: On
2 Vd
Displays drum dark potential, the standard potential, electrical potential of the
black areas after exposure.
[100 to 970/800/1]
3 Vh
Displays standard halftone drum potential, used for laser power adjustment.
[100 to 500/300/1]
4 Vg
Displays the charge grid voltage resulting from the latest Vd adjustment.
[0 to 0xFFFF/0/1]
5 LD Level
Displays the LD power correction value as a result of the latest Vh adjustment.
[-127 to 127/0/3]
6 ID Sensor Pattern Potential
Displays Vid, the latest drum surface voltage measured on the ID sensor
pattern.
[0 to 0xFFFF/0/1]
SM Appendix 3-57
SP3000 Processing
D131/D132/D133