Panasonic KV-S1057C, Service Manual

Page: 18 / 255

18
6 Mechanical Function
6.1. Paper Feed Mechanism
Fig. 6.1
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 Double Feed Prevention Roller (sup-
ported 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
DoubleFeed
Detector[Receive]
Paper Feed Roller
Document Stage
Gate
Double Feed
Prevention Roller
Paper Feed Direction