Document gap detecting device for use in facsimile

Details Document gap detecting device for use in facsimile Document gap detecting device for use in facsimile

1990-05-22

1992-11-17

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358498, 358474, 271258, 271265, 271270, H04N 102

Patent

active

051648466

ABSTRACT:
A document gap detecting device for facsimile is disclosed in which the bottom plate is formed in a stepped shape, and the linear speeds of an ADF roller and a carrying roller are designed to be same, thereby making it possible to produce a gap between the continuously fed document sheets without requiring a difference between the linear speeds of the ADF roller and the carrying roller. There are further provided with transmitting and receiving optical sensors. According to the present invention, there will occur no undesirable phenomenon such that the sheet at the receiving end is outputted in an extended length.

REFERENCES:
patent: 5001577 (1991-03-01), Lee

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