Ricoh FT8680 Service Manual page 189

SERVICE PROGRAM MODE
7
Sensor Outputs
ID Sensor
Vsg
Vsp
Drum Potential Sensor
Vd
VL1
VL2
Vr
A171M519.img
V
100
V
800
V
01
V
02
Exposure Sensor
Initial
Current Current value
ADS Sensor
Vs
Vd
Development Bias
Vb
4-12
ID sensor output for bare drum
surface
ID sensor output for pattern
Vd set up value during the
process control sequence
VL set up value during the
process control sequence
VL value during the copy cycle
Residual voltage during the
process control sequence
Potential sensor output when
100V is applied to the drum shaft
Potential sensor output when
800V is applied to the drum shaft
Drum potential just after charging
during the process control
sequence
Drum potential just after charging
during the copy cycle
Initial value during the process
control sequence
ADS sensor output value during
the process control sequence
ADS sensor output value during
the copy cycle
Latest output of the development
bias during a copy cycle.
1 July 1995