Ricoh FT8680, Service Manual

Page: 129 / 389

15.4 JOGGER
When the start key is pressed to start a duplex or overlay copy cycle, the
jogger fence drive motor [A] drives the jogger fences [B] inward from the
home positions to the waiting positions which are 10 mm away from the
edges of the stacked paper. The position is determined by the CPU based on
information from the paper size sensors in the paper tray.
The end fence drive motor [C] moves the end fence [D] to the appropriate
position for the selected paper size. The end fence does not move as a
jogger.
After the leading edge of the copy paper passes the duplex entrance sensor,
and after the appropriate time for the selected paper, the jogger fence drive
motor rotates forward then reverses. This makes the jogger fence push all
the stacked copies against the other fence. Also, this makes the jogger fence
return to the waiting positions for the next copy. This movement is repeated
for each paper sheet in the duplex tray.
The jogger fences also have side-weights [E] to prevent paper from buckling
in the tray.
[A]
[E]
[B]
[C]
[D]
A171D546.wmf
31 July 1995 DUPLEX
2-105