Read Panasonic KV-S1026C / KV-S1015C (serv.man2) Service Manual online
19
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 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
(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 1.9 times as fast as the speed of the Paper Feed position.
the Conveyor Motor, which will 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
(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 1.9 times as fast as the speed of the Paper Feed position.
4. When the leading edge of the document pushes down the Starting Sensor’s arm, the leading edge is detected, and
scanning will start after a certain period of time determined by the scanner.
5. When the trailing edge of the document passes through the separation section, the continuous rotation of the Paper Feed
Roller during scanning, enables the next document to be fed.
(A difference in the rotation speeds of the Conveyor Roller and Paper Feed Roller creates a distance between the1st document
and the 2nd.)
6. The steps 2 to 5 above are repeated.
7. When the Paper Sensor detects no further documents, and the Starting Sensor detects the trailing edge of the document,
the Conveyor Motor will stop rotating after a certain period of time determined by the scanner to end the scanning sequence.
scanning will start after a certain period of time determined by the scanner.
5. When the trailing edge of the document passes through the separation section, the continuous rotation of the Paper Feed
Roller during scanning, enables the next document to be fed.
(A difference in the rotation speeds of the Conveyor Roller and Paper Feed Roller creates a distance between the1st document
and the 2nd.)
6. The steps 2 to 5 above are repeated.
7. When the Paper Sensor detects no further documents, and the Starting Sensor detects the trailing edge of the document,
the Conveyor Motor will stop rotating after a certain period of time determined by the scanner to end the scanning sequence.
Note:
When the scanner’s buffer becomes full, the scanner stops to prevent buffer overflow, while allowing the data to be
transferred to the PC continuously. When enough free buffer space is secured again, the scanner resumes the scanning
process.
transferred to the PC continuously. When enough free buffer space is secured again, the scanner resumes the scanning
process.
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