Ricoh FT7770 Service Manual page 311

30 April, '89
35 Exposure Lamp Voltage
<Function> Varies the light intensity of the exposure lamp.
<Remark>
36 Automatic Density Sensor Output
<Function>
<Operation> The exposure lamp lights for 2 seconds and then turns
<Remark>
40 Drum Surface Temperature
<Function> Displays the surface temperature of the selenium drum.
41 Jam Counter 1 (Total Misfeeds)
<Function>
<Remark>
42 Jam Counter 2
<Function>
The input voltage of the lamp can be adjusted in 16
steps. One step corresponds to about 0.65 volts; therefore,
the total change of the input voltage is 10 volts.
Note: Do not adjust the potentiometers of the lamp regulator.
Varies the output voltage of the automatic density sen-
sor.
off for 0.5 seconds. This sequence repeats five times.
The output voltage can be adjusted by turning the poten-
tiometer (VR201) on the
The voltage is displayed
Displays the total number of paper misfeeds that have occurred
in the copier.
The machine counts the number of paper misfeeds up to
999, then resets the counter at 0.
Displays the total number of paper misfeeds that
have occurred in the following sections of the
copier:
42-1 Upper Tray
42-2 Lower Tray
42-3 Registration
42-4 Separation
42-5 Fusing and Inverter
5-98
main control board.
during adjustment.