Read Sharp AR-RP1 (serv.man2) Service Manual online
2. Out line of operations
[Duplex documents]
1) Document set (Document set sensor ON)
2) Document size detection (Document width sensors W1, W2, W3
detect the document width, and document length sensors L1, L2
detect the document length.)
3) Copier COPY key ON
4) SPF motor ON
5) Pickup solenoid ON
6) Pickup roller rotation
7) Paper feed roller rotation
8) Paper entry sensor detects the document presence.
9) PS roller rotation
10) Copying (Front surface of document)
11) Transport roller rotation
12) Paper exit roller rotation
13) Paper exit gate falls down. (Documents are discharged to the
intermediate tray.)
14) Reverse gate falls down.
15) Paper exit roller reverse rotation (Documents are fed to the re-
verse path.)
16) Paper entry sensor detects document presence.
17) PS roller rotation
18) Copying (Back surface of document)
19) Transport roller rotation
20) Paper exit roller rotation
21) Paper exit gate falls down (Documents are discharged to the
intermediate tray.)
22) Reverse gate falls down.
23) Paper exit roller reverse rotation (Documents are fed to the re-
verse path.)
24) Paper entry sensor detects document presence.
25) PS roller rotation
26) Paper exit roller rotation
27) Paper exit gate lifts up.
28) Documents are fed to the paper exit tray.
29) Next document
(YES)
Go to 4).
(NO)
30) SPF 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 selec-
tion 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
selected. When different sizes of documents are set, the max. size is
detected. The document width is detected by the document width sen-
sors (W1, W2, W3), and the document length is detected by the docu-
ment length sensors (L1, L2) to identify the document size. Judgement
of the document size is made in a certain timing after detecting the
of the document size is made in a certain timing after detecting the
document with the document set sensor (W0).
Document set
size and set
direction
Document width sensor
Document
length sensor
W1
W2
W3
L1
L2
AB
series
series
A5
B5
A5R
A4
B5R
A4R
8.5 x 13"
B4
A3
Inch
series
series
8.5" x 5.5"
8.5" x 5.5"R
11" x 8.5"
11" x 8.5"R
8.5" x 13"
8.5" x 14"
11" x 17"
(Note) Detection sensor ON:
, OFF:
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