Ricoh FT8880 Service Manual page 57

5 June 1992
8
SP Test Mode -- 3 (PAGE 1 - 3)
Item
Charge Cleaner
ID Sensor
ADS Sensor
Drum Potential
Sensor
Exposure Lamp
Function
Turns on charge and T/S corona
wire cleaners. (one round)
Adjusts Vsg value automatically
and makes ID sensor pattern,
then checks Vsp value.
Adjusts the ADS sensor
automatically and measures the
original background density.
Applies 100 V and 800 V to the
drum drive shaft from the
development bais power pack and
measures V and V
100
Turns on the exposure lamps and
measures lamp intensity sensor
value.
Touch
1. Touch
2. Press "Start" key top on the
operation unit.
Note: Test result is displayed in
values.
800
1. Touch
2. Touch
Note: Test result is displayed in
4-11
SERVICE PROGRAM MODE
Test Method
START .
on the display.
SET
Sensor Output (SP mode
).
7
to turn on lamps.
SET
to turn off lamps.
RESET
Sensor Output (SP mode
).
7