Ricoh D009 Service Manual page 710

Component Layout
Original Length - M Detects the original length - M.
Original Length - L
Original Set
Original Exit
Original Trailing
Edge Sensor
Separation Sensor
Solenoids
Stamp
Junction Gate
PCBs
DF Drive
B802
Detects the original length - L.
Detects if an original is on the feed table.
Detects the leading edge of the original to turn on the
junction gate solenoid and checks for original
misfeeds.
Detects the trailing edge of the original to turn off the
transport and feed motor and junction gate solenoid.
In single-sided mode, used to detect original misfeeds.
Detects the trailing edge of the last original to stop
copy paper feed and to turn off the transport motor,
and checks for original misfeeds.
The machine uses this sensor to check if the original
has slipped during feed-in, to make sure that original
feed starts at the correct time.
Energizes the stamper to mark the original.
Opens and closes the junction gate.
Interfaces the sensor signals with the copier, and
transfers the magnetic clutch, solenoid and motor drive
signals from the copier.
20
12
13
16
19
15
18
17
20
14
SM