AR-RF3 (serv.man2). AR-RF3 Service Manual - Sharp Copying Equipment Service Manual (repair manual). Page 12

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.

Step 42:

Document exit sensor (DES) detects trailing edge of 
original.
(DES output LOW)

Step 43:

The original is discharged.

Step 44:

Transport motor (DTM) OFF.
(Transport belt stops.)

Step 45:

Delivery motor (DEM) OFF.
(Reverse roller stops.)

*C

For step feed operation, if it is not the final discharge, go to step 39 
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)

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.

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

is discharged.

*A

Step 06:

Document exit sensor (DES) detects leading edge of 
discharged original.
(DES output HIGH)

*A

Step 07:

Transport motor (DTM) and delivery motor (DEM) rpm 
decrease.

Step 08:

Resist sensor (REGS) detects leading edge of original.
(REGS output HIGH)

Step 09:

Original contacts resist rollers and stops.
Document feed motor (DFM) OFF.

Step 04

Step 05

Step 06

Step 07

Step 08

Step 09