Ricoh FT8880 Service Manual page 54

SERVICE PROGRAM MODE
7
Sensor Output
ID Sensor
ID sensor output for bare drum
Vsg
surface
Vsp ID sensor output for pattern
Drum Potential Sensor
Vd set up value during the process
Vd
control sequence
VL set up value during the process
VL1
control sequence
VL2 VL value during copy cycle
Residual voltage during the
Vr
process control sequence
Potential sensor output when 100V
V
100
applied to drum shaft
Potential sensor output when 800V
V
800
applied to drum shaft
Drum potential just after charging
V during the process control
01
sequence
Drum potential just after charging
V
02
during copy cycle
ADS Sensor
ADS sensor output value during
Vs
the process control sequence
ADS sensor output value during
Vd
copy cycle
Paper Feed Time
Displays the interval between the
time a paper feed clutch turns on and
the time the registration sensor turns
on.
Reference Time (theoretical number
assuming no paper slippage)
1st Tray
2nd Tray
3rd Tray
Duplex Tray
4-8
5 June 1992
(ms)
1,028
730
1,336
1,091