Sharp AR-RF3 (serv.man2) Service Manual ▷ View online
AR-RF3 MACHINE OPERATIONS 4 - 2
1. Operation flowchart
A. RADF mode (single-side copy mode) copying
START
Step 01:
The transport section is closed. (AOSW/FOS OFF)
Step 02:
An original is set in the original tray.
(EMPS output LOW)
(EMPS output LOW)
Step 03:
Print SW ON.
(Preliminary feed): For the first original, dummy discharge is
performed.
Step 04:
Document feed motor (DFM) forward rotation.
(Pickup roller and document feed roller rotate.)
Original stopper is released, and original feed starts.
(Pickup roller and document feed roller rotate.)
Original stopper is released, and original feed starts.
Step 05:
Transport motor (DTM), delivery motor (DEM) forward
rotation.
(Transport belt and reverse roller rotate.)
*A: If there was an original already present in the tray, it
rotation.
(Transport belt and reverse roller rotate.)
*A: If there was an original already present in the tray, it
is discharged.
*A
Step 06:
Document exit sensor (DES) detects leading edge of
discharged original.
(DES output HIGH)
discharged original.
(DES output HIGH)
*A
Step 07:
Transport motor (DTM) and delivery motor (DEM) rpm
decrease.
decrease.
Step 08:
Resist sensor (REGS) detects leading edge of original.
(REGS output HIGH)
(REGS output HIGH)
Step 09:
Original contacts resist rollers and stops.
Document feed motor (DFM) OFF.
Document feed motor (DFM) OFF.
Step 10:
Document feed motor (DFM) reverses direction.
(Resist rollers rotate.)
The leading edge of the original is taken up by the resist
rollers.
(Resist rollers rotate.)
The leading edge of the original is taken up by the resist
rollers.
Step 11:
Original timing sensor (TIMS) detects leading edge of
original.
(TIMS output HIGH)
original.
(TIMS output HIGH)
Step 12:
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.)
*A
Step 13:
Document exit sensor (DES) detects trailing edge of
discharged original.
(DES output LOW)
discharged original.
(DES output LOW)
*A
Step 14:
Original is discharged.
Step 04
Step 05
Step 06
Step 07
Step 08
Step 09
Step 10
Step 11
Step 12
Step 13
Step 14
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
AR-RF3 MACHINE OPERATIONS 4 - 4
Step 28:
Copier mirror base scanning stops.
(Single-side discharge)
*C
For step feed operation, only when feeding a second original, go to
step 16.
step 16.
Step 29:
Transport motor (DTM) and delivery motor (DEM)
forward rotation.
(Transport belt and reverse roller rotate.)
Original discharge starts.
forward rotation.
(Transport belt and reverse roller rotate.)
Original discharge starts.
Step 30:
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 31:
Document exit sensor (DES) detects leading edge of
discharged original.
(DES output HIGH)
discharged original.
(DES output HIGH)
Step 32:
Original timing sensor (TIMS) detects trailing edge of
original.
(TIMS output LOW)
original.
(TIMS output LOW)
Step 33:
Document feed motor (DFM) OFF.
(Resist rollers stop.)
(Resist rollers stop.)
Step 34:
Transport motor (DTM) OFF.
(Transport belt stops.)
Original stops.
(Transport belt stops.)
Original stops.
Step 35:
Copier mirror base scanning starts.
Step 36:
Delivery motor (DEM) rpm decrease.
Step 37:
Document exit sensor (DES) detects trailing edge of
discharged original.
(DES output LOW)
discharged original.
(DES output LOW)
Step 38:
Delivery motor (DEM) OFF.
(Reverse roller stops.)
The original is discharged.
(Reverse roller stops.)
The original is discharged.
*B
<EMPS output>
LOW (original in tray)
→
Go to step 22 (preliminary feed)
HIGH (no original in tray)
→
Continue as follows.
Step 39:
Transport motor (DTM) and delivery motor (DEM)
forward rotation.
(Transport belt and reverse roller rotate.)
forward rotation.
(Transport belt and reverse roller rotate.)
Step 40:
Document exit sensor (DES) detects leading edge of
original.
(DES output HIGH)
original.
(DES output HIGH)
Step 41:
Delivery motor (DES) rpm decrease.
Step 29
Step 30
Step 31
Step 32
Step 33
Step 34
Step 36
Step 37
Step 38
Step 39
Step 40
Step 41
AR-RF3 MACHINE OPERATIONS 4 - 5
NOTES:
*A: This operation is performed when there is an original already on the original platform in advance. If there is no original on the original platform, this
operation is not performed.
*B: When there is an original in the original tray, the original set sensor (EMPS) output becomes LOW.
*C: For a small original whose transport direction length is less than letter-size width, all the step feed operations are performed.
B. RADF mode (duplex copy mode) copying
Step 42:
Document exit sensor (DES) detects trailing edge of
original.
(DES output LOW)
original.
(DES output LOW)
Step 43:
The original is discharged.
Step 44:
Transport motor (DTM) OFF.
(Transport belt stops.)
(Transport belt stops.)
Step 45:
Delivery motor (DEM) OFF.
(Reverse roller stops.)
(Reverse roller stops.)
*C
For step feed operation, if it is not the final discharge, go to step 39
again (final original discharge).
again (final original discharge).
END
Step 42
Step 43
Step 44
Step 45
START
Step 01:
The transport section is closed. (AOSW/FOS OFF)
Step 02:
An original is set on the original tray.
(EMPS output LOW)
(EMPS output LOW)
Step 03:
Print SW ON.
(Preliminary feed): For the first original, dummy discharge is
performed.
Step 04:
Document feed motor (DFM) forward rotation.
(Pickup roller and document feed roller rotate.)
Original stopper is released, and original feed starts.
(Pickup roller and document feed roller rotate.)
Original stopper is released, and original feed starts.
Step 05:
Transport motor (DTM) and delivery motor (DEM)
forward rotation.
(Transport belt and reverse roller rotate.)
*A: If there was an original already present in the tray, it
forward rotation.
(Transport belt and reverse roller rotate.)
*A: If there was an original already present in the tray, it
is discharged.
*A
Step 06:
Document exit sensor (DES) detects leading edge of
discharged original.
(DES output HIGH)
discharged original.
(DES output HIGH)
*A
Step 07:
Transport motor (DTM) and delivery motor (DEM) rpm
decrease.
decrease.
Step 08:
Resist sensor (REGS) detects leading edge of original.
(REGS output HIGH)
(REGS output HIGH)
Step 09:
Original contacts resist rollers and stops.
Document feed motor (DFM) OFF.
Document feed motor (DFM) OFF.
Step 04
Step 05
Step 06
Step 07
Step 08
Step 09
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