Ricoh FT7770 Service Manual page 557

5) Misfeed is displayed when the main SW is turned on and the
covers are closed.
Which misfeed indicator is
Indicator
Indicator
Indicator
Indicator
6) The Add Oil indicator is displayed, even when
is present.
Replace the oil end sensor (short condition).
7) The Add Oil indicator never turns on.
Replace the oil end sensor (open condition).
1: Replace the
: Replace the
: Replace the
2: Replace the
3: Check and replace the fusing sensor.
: Replace the exit sensor.
4: Replace the duplex entrance sensor.
on?
lower paper feed sensor.
upper paper feed sensor.
registration sensor.
pick-off sensor.
30 April, '89
sufficient oil