Read Sharp AR-RF3 (serv.man2) Service Manual online
AR-RF3 MACHINE OPERATIONS 4 - 3
Step 15:
Transport motor (DTM) and delivery motor (DEM) OFF.
(Transport belt and reverse roller stop.)
(Transport belt and reverse roller stop.)
(Single-side feed)
Step 16:
Transport motor (DTM) forward rotation.
(Transport belt rotates.)
(Transport belt rotates.)
Step 17:
Document feed motor (DFM) reverse rotation.
(Resist rollers rotate.)
The original is sent to the transport section.
(Resist rollers rotate.)
The original is sent to the transport section.
Step 18:
Original timing sensor (TIMS) detects trailing edge of
original.
(TIMS output LOW)
original.
(TIMS output LOW)
Step 19:
Document feed motor (DFM) OFF.
(Resist rollers stop.)
(Resist rollers stop.)
Step 20:
Transport motor (DTM) OFF.
(Transport belt stops.)
Original stops.
(Transport belt stops.)
Original stops.
Step 21:
Copier mirror base scanning starts.
*B
<EMPS output>
HIGH (no original in tray)
→
After completion of mirror base scanning,
go to step 39.
go to step 39.
LOW (original is in tray)
→
Continue as follows.
(Preliminary feed)
Step 22:
Document feed motor (DFM) forward rotation.
(Pickup roller and document feed roller rotate.)
Original stopper is released, and the original feed is
started.
(Pickup roller and document feed roller rotate.)
Original stopper is released, and the original feed is
started.
Step 23:
Resist sensor (REGS) detects leading edge of original.
(REGS output HIGH)
(REGS output HIGH)
Step 24:
Original contacts resist rollers and stops.
Document feed motor (DFM) OFF.
Document feed motor (DFM) OFF.
Step 25:
Document feed motor (DFM) reverse rotation.
(Resist rollers rotate.)
Leading edge of the original is taken up by the resist
rollers.
(Resist rollers rotate.)
Leading edge of the original is taken up by the resist
rollers.
Step 26:
Original timing sensor (TIMS) detects leading edge of
original.
(TIMS output HIGH)
original.
(TIMS output HIGH)
Step 27:
Document feed motor (DFM) OFF.
(The original is stopped with its leading edge taken up by
the resist rollers.)
(The original is stopped with its leading edge taken up by
the resist rollers.)
Step 15
Step 16
Step 17
Step 18
Step 19
Step 20
Step 22
Step 23
Step 24
Step 25
Step 26
Step 27
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