Read Sharp AR-651 (serv.man19) Service Manual online
AR-651/810 RADF (DOCUMENT FEEDER) 16 - 16
(12) Start of 2nd original back side scanning
Scanning begins after receiving the original transport signal from the copier. At the same time, the
original transport signal turns OFF. When the read motor starts to rotate forward, the large original exit
motor also starts to rotate forward and the disengagement solenoid turns ON. The SCN-STR turns ON
when the leading edge of the original has reached the scanning section. The large original exit motor
stops when the disengagement solenoid has turned ON.
When the leading edge of the original has been transported to the intermediate transport section and
come to a specified distance before the intermediate transport roller, both the large and small original
exit motors start to rotate in reverse. (The small original exit solenoid has been ON from 1st original.)
Both the SCN-STR and the disengagement solenoid turn OFF when the trailing edge of the original has
passed the scanning section. The large original exit motor starts to accelerate when the trailing edge of
the original has passed the 3rd roller and proceeded a specified distance.
(13) After the original trailing edge has passed the 3rd roller
The large original exit motor stops rotating when the trailing edge of the original has been detected by
the intermediate transport sensor then proceeded a specified distance.
The small original exit motor starts to slow down when the trailing edge of the original has come to a
specified distance before the small original reverse sensor. Then it stops rotating when the trailing edge
of the original has been detected by the small original reverse sensor and proceeded a specified dis-
tance.
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