SHARP ARDE9, ARPG1, ARFX3, ARSP3 Service Bulletin
AR-SP3
[3] AR-SP3
1. Operational descriptions
A. Outline
The SPF (Single Path Feeder) is installed to the AL-1000/1200 as a standard provision, and it automatically copies up to 30 sheets of documents
of a same size. (Only one set of copies)
B. Document transport path and basic composition
(1) Pickup roller (2) Sheet of document for paper feed (3) Set detection ACT
(4) Paper stopper (5) Document feed roller (6) Separation sheet
(7) Paper entry sensor (8) PS roller D (9) Transport follower roller
(10) Paper exit roller (11) Paper exit follower roller (12) Document tray
C. Operational descriptions
(Copier side)
MM rotation
CPFS ON
PPD ON
RRC ON
(Transfer)
Time chart (Tray feed)
Document set
SPID ON
Document feed unit lamp ON
PSW ON
MIRM rotation
Main motor rotation
Paper feed
Synchronization
Paper transport
Document set sensor
Copy start
The scanner is shifted
to the exposure position.
(SPF side)
SPFM rotation
SPUS ON
SPPD ON
(Exposure)
SPF motor rotation
Document feed
Document transport sensor
Document transport
(Fusing)
POD ON
(Paper exit)
In the zooming mode, the magnification ratio in the sub
scanning direction (paper transport direction) is adjusted
by changing the document transport speed.
(Document exit)
3 – 1
D. Cases where a document jam is caused
a. When SPPD is ON (document remaining) when the power is turned on.
b. When SPPD is not turned ON within about 1.5 sec (at 100% copy) after starting the document feed operation.
c. When SPPD is not turned on within about 4.7 sec (at 100% copy) after turning on SPPD.
d. When the SPF document jam release door or the OC cover is opened during document transport (SPF motor rotating).
AR-SP3
2. Disassembly and assembly
No. Part name Ref.
A Sensor PWB
B Pickup solenoid
C Clutch
D Manual paper feed roller, pickup roller
E Belt
F SPF motor
G Paper entry sensor
H PS roller
I Paper exit roller
Pickup unit removal
1) Remove three fixing pawls from the bottom of the machine.
2) Remove the front cover and the rear cover.
2
2
1) Remove the belt, the paper feed frame SP, and two harnesses.
2) Remove the pickup unit.
1
1
2
3
4
3
1
*
When installing the parts, be careful of the hole position of the paper
1
frame SP.
1
3 – 2
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