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3PH
2-1-7
(1) Reverse duplex scanning operation
In the double-sided original mode, after the first side of an original is scanned, the feedshift guide is activated
to switch the conveying path to the switchback tray side and the original is fed to the switchback tray. Then, the original is
reversed by the reverse rotation of the DP paper feed motor (DPPFM) and conveyed again to the original conveying
section. After the second side is scanned, the original is fed temporarily to the switchback tray, is reversed, is conveyed
without scanning, and then is ejected to the exit tray. Also the DP switchback motor (DPSBM) is activated to
release the switchback pulley for preventing original jams in the original switchback section.
Figure 2-1-7
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Slit glass: first side scanning
Slit glass: second side scanning
DP switchback roller
DP feedshift guide
DP switchback tray
DP switchback tray
Original eject tray
DP feedshift roller
DP eject roller
The first side of original is scanned
at the slit glass (machine main
body).
DPPFM :Forwerd rotation
DPSBM :Stop
Conveyed to the switchback tray by
the feedshift guide.
DPPFM :Forwerd rotation
DPSBM :Forwerd rotation
Ejected to the original eject tray by
the feedshift and eject rollers.
DPPFM :Forwerd rotation
DPSBM :Stop
The second side of original is
scanned at the slit glass (machine
main body) and the original is
conveyed to the switchback tray.
DPPFM :Forwerd rotation
DPSBM :Forwerd rotation
The original is reversed by the
switchback roller.
DPPFM :Reverse rotation
DPSBM :Reverse rotation
Summary of Contents for DP 773
Page 1: ...Service Manual Document Processor DP 773 First Edition Date 30 08 2013 3PHSM060 ...
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