Sharp AR-RP7 Service Manual page 7

2. Out line of operations
[Duplex documents]
1) Document set (Document set sensor ON)
4
2) Document size detection (Document width sensors SWD the doc-
ument width, and document length sen-
sors L1, L2 detect the document length.)
4
3) Copier COPY key ON
4
4) RSPF motor ON
4
5) DFCL ON
4
6) Pickup roller and paper feed roller rotation
4
7) Paper entry sensor detects the document presence.
4
8) PS roller rotation
4
9) Copying (Front surface of document)
4
10) Transport roller rotation
4
11) Paper exit roller rotation
4
12) Paper exit gate falls down.
(Documents are discharged to the intermediate tray.)
4
13) Reverse gate falls down.
4
14) Paper exit roller reverse rotation
(Documents are fed to the reverse path.)
4
15) Paper entry sensor detects document presence.
4
16) PS roller rotation
4
17) Copying (Back surface of document)
4
18) Transport roller rotation
4
19) Paper exit roller rotation
4
20) Paper exit gate falls down
(Documents are discharged to the intermediate tray.)
4
21) Reverse gate falls down.
4
22) Paper exit roller reverse rotation
(Documents are fed to the reverse path.)
4
23) Paper entry sensor detects document presence.
4
24) PS roller rotation
4
25) Paper exit roller rotation
4
26) Paper exit gate lifts up.
4
27) Documents are fed to the paper exit tray.
4
28) Next document 3 (YES) 3 Go to 4).
4 (NO)
29) RSPF motor OFF
3. Document size detection
1) Document size detection with the document set tray
When documents are set on the document set tray in the auto selection
mode of paper/copy magnification ratio, the document size is detected
and paper and the copy magnification ratio are automatically selected.
When different sizes of documents are set, the max. size is detected.
The document width is detected by the document width sensors (SWD),
and the document length is detected by the document length sensors
(L1, L2) to identify the document size. Judgment of the document size is
made in a certain timing after detecting the document with the docu-
ment set sensor (EMPS).
AB series
Inch series
Note: Detection sensor ON: o, OFF: n
AR-RP7 OPEREATIONAL DESCRIPTIONS
– 6 –
Document length sensor
Document set size and
set direction
L1
n
A5
n
B5
n
A5R
n
A4
o
B5R
o
A4R
o
8.5" x 13"
o
B4
o
A3
n
8.5" x 5.5"
n
8.5" x 5.5"R
n
11" x 8.5"
o
11" x 8.5"R
o
8.5" x 13"
o
8.5" x 14"
o
11" x 17"
L2
n
n
n
n
n
n
o
o
o
n
n
n
n
o
o
o