Mechanical Function; Feed Mechanism For Kv-S2025C/Su225C Series - Panasonic KV-S2045C Service Manual

6 MECHANICAL FUNCTION

6.1.

Feed Mechanism for KV-S2025C/SU225C Series

1. Scanning command is issued from PC, Paper detector checks whether documents exist on the Feed Tray.
2. Conveyor Motor is driven to rotate Drive Rollers.
3. Paper Feed Motor is driven to rotate Paper Feed Roller and Separation Roller.
Retard Roller is supported by a shaft fixed via torque limiter, and it is pressed against the Separation Roller.
When documents enter into the separation section, the Retard Roller exerts a manipulation force onto the document with the
torque which has been already set.
This Manipulation force enables to separate the documents, and to feed a piece of document to scanning section.
4. When the leading edge of the document advances at about 10mm from the 1
section and Waiting Sensor, the Paper Feed Motor stops and the Paper Feed Roller and Separation Roller turn together.
5. When the leading edge of the document passes through Starting Position Sensor, scanning the image starts after the defined
period. (Time to be required to conveyor the documents from the Starting Position Sensor to the scanning start point)
6. When the heeling edge of the document comes to about +5mm forward from the Retard Roller whose length is equivalent to
the distance between the Starting Position Sensor and the scanning start point, the Paper Feed Motor is driven again to feed
nd
the 2 document.
7. Repeat the sequence "3." to "6.".
Note
When buffer memories in the scanner are full of the image data during scanning, the scanner stops scanning
(conveying) to wait until the free memorized space is secured for a moment.
When the free memorized space is secured, the scanner starts scanning again.
KV-S2025C Series / KV-SU225C Series / KV-S2045C Series / KV-SU245C Series
st
Drive Roller after passing through the separation
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