SHARP ARRP1 OPEREATIONAL DESCRIPTIONS
[4] EXTERNAL VIEW AND
INTERNAL STRUCTURE
1. External view
1
2
5
No. Code Name Type
9 Transport clutch
10
11
12 — Interface PWB — —
13
3
14
15
4
SPF motor Stepping
Gate solenoid
Document length
detection SW
(Short)
Document length
detection SW
(Long)
Book sensor Detects the SPF
——
Drives document
motor
feed on the tray,
transport, and
paper exit roller.
——
Detects the
document length on
the tray.
Detects the
document length on
the tray.
float.
No. Name
1 Document set tray
2 Document guide
3 Document feed secti on cover
4 Document transport sect ion cover
5 Document exit section
2. Internal structure
14
13
15
5
4
3
Sensor, detector, etc.
No. Code Name Type
1 Document set
sensor
2
3
4
5
6
7
8
Open/close sensor Detects open/close
Document width
sensor (A4R, LTR,
A5)
Document width
sensor (B4, B5)
Document width
sensor (WL, TR,
A5R, A4, LT9
Pickup solenoid
Paper entry sensor Detects presence of
Pressure release
solenoid
12
11
10
8
9
6
7
2
1
Detects presence of
documents.
of the paper feed
unit.
Detects the
document width on
the tray.
Detects the
document width on
the tray.
Detects the
document width on
the tray.
——
documents.
——
[5] OPEREATIONAL
DESCRIPTIONS
1. Major parts of the paper fed section
12 3,45678
910111213 141516
No. Part name Operation
1 Document lengt h sensor
(L2)
2 Document lengt h sensor
(L1)
3
4 Document width sensor
(W1, W2, W3)
5 Pickup roller Picks up documents.
6 Paper feed roller Feeds and transports documents.
7 Paper entry sensor
(PAPER)
8 PS roller Makes synchronization betw een the
9 PS follower roller Makes synchronization betw een the
10 Transport roller Transports documents.
11 Transport follower roller Transports documents.
12 Paper exit follower roller Discharges documents.
13 Paper exit roller Discharges documents.
14 Reverse gate Opens/closes the document
15 Paper exit gate Separate document exit to the
16 Intermediate tray Discharges documents to the
Detects the document length on the
tray.
Detects the document length on the
tray.
Detects presence of documen t s.
Detects the document width.
Detects transport of do cuments.
document lead edge and the image
lead edge.
document lead edge and the image
lead edge.
reverse path.
intermediate or the paper exit tray.
intermediate tray during document
reverse.
2. Out line of operations
3. Document size detection
[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 de t ect s the document presence.
9) PS roller rotation
10) Copying (Front surface of document)
11) Transport roller rotation
12) Paper exit roller rotation
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 p aper and t he copy mag nificat ion ratio ar e automat ically
selected. When different sizes of documents are set, the max. size is
detected. Th e do cum ent wi dth is det ecte d by the doc ume nt w idth s ensors (W1, W2, W3), and the document length is detected by the document length s ensors (L1, L2) to identify the document si z e. J udgement
of the docume nt size is made in a certain t iming after detecting the
document with the document set sensor (W0).
13) Paper exit gate falls down. (Documents are discharged to the
intermediate tray. )
14) Reverse gate fa lls down.
15) Paper exit roller reverse rotation (Documents are fed to the re-
verse path.)
16) Paper entry sensor de t ect s 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 fa lls down.
23) Paper exit roller reverse rotation (Documents are fed to the re-
verse path.)
24) Paper entry sensor de t ect s document presence.
25) PS roller rotation
Document set
size and set
direction
AB
series
Inch
series
(Note) Detection se nsor ON: , OFF:
A5
B5
A5R
A4
B5R
A4R
8.5 x 13"
B4
A3
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"
Document width sensor
W1 W2 W3 L1 L2
Document
length sensor
26) Paper exit roller rotation
27) Paper exit gate lifts up.
28) Documents are fed to the paper exit tray.
29) Next document
30) SPF motor OFF
(NO)
(YES)
Go to 4).
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