Ricoh FT8880 Service Manual page 55

5 June 1992
8
SP Test Mode -- 1 (PAGE 1 - 1)
Sensors
Turns on and off the 12-volt line of the dc drive board (CN302-2), which
applies power to sensors, and checks sensor operation. The sensors which
are normally activated during the stand-by condition cannot be checked
because sensor output does not change.
Touch START on the display. The copier automatically checks sensors and
displays defective sensor code numbers (maximum 5 sensors).
Sensor Code Number
110 Paper Feed Sensor: 3rd tray
111 Upper Limit Sensor: 3rd tray
112 Lower Limit Sensor: 3rd tray
113 Paper End Sensor: 3rd tray
130 Paper Feed Sensor: 1st tray
131 Upper Limit Sensor: 1st tray
132 Lower Limit Sensor: 1st tray
133 Paper End Sensor: 1st tray
150 Paper Feed Sensor: 2nd tray
151 Upper Limit Sensor: 2nd tray
152 Lower Limit Sensor: 2nd tray
153 Paper End Sensor: 2nd tray
160 Paper Feed Sensor: duplex
163 Paper End Sensor: duplex
164 Pick-up Position Sensor: duplex
165 Duplex Entrance Sensor
400 Fusing Sensor
500 Exit Sensor
800 Toner Cartridge Sensor
SERVICE PROGRAM MODE
4-9