Method for controlling paper-feeding by detecting a starting poi

Details Method for controlling paper-feeding by detecting a starting poi Method for controlling paper-feeding by detecting a starting poi

1989-12-22

1993-06-01

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358449, 358475, 358461, 358488, 358496, 355316, 355317, 355308, H04N 104

Patent

active

052165264

ABSTRACT:
A method for controlling paper-feeder of a facsimile (FAX) system is disclosed. The method especially provides the precise feeding of the document to the scanning point of the FAX system. To achieve the objects, the improvement includes a first step for detecting a document feed in a standby state by using the document feeding detection apparatus, controlling the light-application apparatus when detecting, applying the light at the rear of the scanning area on the front frame, and reading a reference intensity of the scanning area of the front frame by using a image signal processing method for storing; a second step for controlling the subscanning apparatus to move the document being fed in the direction of subscanning, and checking whether the front-end of the document has reached the scanning area of the front frame; and a third step for controlling the subscanning apparatus to stop the movement of the document when, at the conclusion of the second step, the front-end of the document has reached the scanning area of the front frame, and repeating the second step when the document has not reached the position yet.

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