5 ] Opereational Descriptions - Sharp AR-RP3 Service Manual

[5] OPEREATIONAL DESCRIPTIONS
1. Major parts of the paper fed section
1
No. Part name
1 Document length
sensor (L2)
2 Document length
sensor (L1)
3 Document set sensor
(W0)
4 Document width sensor
(W1, W2, W3)
5 Pickup roller
6 Paper feed roller
7 Paper entry sensor
(PAPER)
8 PS roller
9 PS follower roller
10 Transport roller
11 Transport follower roller
12 Paper exit sensor (PO)
13 Paper exit follower roller Discharges documents.
14 Paper exit roller
15 Reverse gate
16 Paper exit gate
17 Intermediate tray
2 3,4 5 6 7 8
17 16 14 13 12 15 11 10
Operation
Detects the document length on
the tray.
Detects the document length on
the tray.
Detects presence of documents.
Detects the document width.
Picks up documents.
Feeds and transports documents.
Detects transport of documents.
Makes synchronization between
the document lead edge and the
image lead edge.
Makes synchronization between
the document lead edge and the
image lead edge.
Transports documents.
Transports documents.
Detects transport of documents.
Discharges documents.
Opens/closes the document
reverse path.
Separate document exit to the
intermediate or the paper exit tray.
Discharges documents to the
intermediate tray during document
reverse.
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 and paper feed roller rotation
9
7) Paper entry sensor detects the document presence.
8) PS roller rotation
9) Copying (Front surface of document)
10) Transport roller rotation
11) Paper exit roller rotation
12) Paper exit gate falls down. (Documents are discharged to the
intermediate tray.)
13) Reverse gate falls down.
14) Paper exit roller reverse rotation (Documents are fed to the re-
verse path.)
15) Paper entry sensor detects document presence.
16) PS roller rotation
17) Copying (Back surface of document)
18) Transport roller rotation
19) Paper exit roller rotation
20) Paper exit gate falls down (Documents are discharged to the
intermediate tray.)
21) Reverse gate falls down.
22) Paper exit roller reverse rotation (Documents are fed to the re-
verse path.)
23) Paper entry sensor detects document presence.
24) PS roller rotation
25) Paper exit roller rotation
26) Paper exit gate lifts up.
27) Documents are fed to the paper exit tray.
28) Next document
(NO)
29) SPF motor OFF
Go to 4).
(YES)