KV-N1058X, KV-N1028X, KV-N1058Y, KV-N1028Y - Panasonic Other Service Manuals Service Manual (repair manual). Page 16

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1. When the document is set on the Feed Tray, and is detected by the Paper Sensor, the scanning command from the PC will 

start the Conveyor Motor, which will move down the Document Stage and open the Gate, and rotate the Paper Feed Roller, 
Conveyor Roller, and Exit Roller in the direction of the arrows.

2. When the document enters the separation section inside the paper feed section, the DFP Roller (supported by a shaft fixed 

via a torque limiter) exerts force onto the document, which depends on the set torque.
When the paper is fed continuously, the 1st document is separated from the 2nd or more documents by this force, and is fed 
to the scanning section.
If a Double Feed occurs when Double Feed detection mode has been set in the scanning software, the scanner will stop the 
scanning process.

3. When the leading edge of the document advances to the Conveyor Roller position, the document is fed at a speed that is 2.3 

times as fast as the speed of the Paper Feed position.

4. When the leading edge of the document is detected by the Starting Sensor, scanning will start after a certain period of time 

determined by the scanner.

Pickup Arm

Gate Lock Lever

Paper Sensor

Double Feed 
Detector[Generate]

Free Roller

Free Roller

CIS [B]

Reference Plate [F]

Exit Roller

CIS [F]

Starting Sensor

Control Board

Conveyor Motor

Power Supply

Conveyor Roller

Double Feed 
Detector[Receive]

Paper Feed Roller

Document Stage

Gate

DFP Roller

Paper Feed Direction