Sharp AR-F152, Service Manual

Page: 38 / 170

Gate OFF
Lower Side of Gate
Gate ON
Gate ON
Upper Side of Gate
Gate ON
Gate OFF
8. D-D (Duplex to Duplex) mode
paper/document transport (AR-156 only)
A. Initial state
Set duplex documents on the document tray.
Set paper on the cassette. (In the duplex mode, the manual feed tray
cannot be selected.)
B. Front copy
Document transport: The document feed roller feeds the document
from the paper feed roller to the PS roller.
→
The document is exposed in the exposure
section, and sent to the document exit section
by the transport/paper exit roller.
→
R-SPF gate solenoid ON
→
The document is sent to the intermediate tray
(but not discharged completely.)
→
The document is stopped once, then
switchback operation is performed. (To the
back copy)
Paper transport: The document is passed through the paper feed
roller and the PS roller by the paper feed roller
and the images on the front surface are trans-
ferred.
→
The paper is passed through the fusing sec-
tion and the lower side of the gate section to
the paper exit tray side, (but not discharged
completely.)
→
It is stopped once and switchback operation
is performed. (To the back copy)
C. Back copy
Document transport: By switchback operation, the document is sent
through the PS roller to the exposure section,
where the back of the document is exposed.
→
It is sent to the document exit section by the
transport roller and the paper exit roller.
→
R-SPF gate solenoid ON. The document is
sent to the intermediate tray, (but not dis-
charged completely.)
→
It is stopped once and switchback operation
is performed.
→
It is sent through the PS roller and the ex-
posure section (without exposure operation)
to the document exit section.
→
R-SPF gate solenoid OFF
→
The document is discharged to the document
exit tray.
Paper transport: Switchback operation is performed.
→
The paper is sent through the upper side of
the gate section and the duplex transport sec-
tion, and the PS roller, and the images on the
back are transferred.
→
It is sent through the fusing section and dis-
charged to the paper exit tray.
Switchback operation is made after back copying in order to discharge
documents according to the setting.
Set document Documents after discharge,
1
with empty feed
4
without empty feed
3
2 3 4
3 2 1
4 1 2
There are following job modes as well as D-D mode.
S - S (Simplex to Simplex)
S - D (Simplex to Duplex), Rotation copy mode (The back images are
rotated 180˚.)
S - D (Simplex to Duplex), Copy mode without rotation
D - S (Duplex to Simplex)
Rotation copy mode:
The front and the back are upside down to each other.
Copy mode without rotation:
The front and the back are not upside down.
AR-F152
6 – 9