Image scanning apparatus having motor operating under improved d

Details Image scanning apparatus having motor operating under improved d Image scanning apparatus having motor operating under improved d

1990-08-17

1993-11-09

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358412, 358406, 358401, 355235, 355202, H04N 100

Patent

active

052608115

ABSTRACT:
An image scanning apparatus according to the present invention is directed to a copying apparatus capable of copying an original on a record sheet and includes a platen on which the original is placed, an image forming device for reproducing an image of the original on a record medium, a scanning device for scanning the original placed on the platen, a projecting device for introducing the image of the original scanned by the scanning device into the image forming device, a driving device for driving the scanning device to move in first and second directions in order to scan the original, a signal generating device for generating a signal corresponding to moving speed of the scanning device, a detecting device for detecting the moving speed of the scanning device based on the generated signal, a determining device for determining based on the generated signal whether the scanning device is under deceleration or not, and a control device for stopping the driving operation of the driving device when the scanning device changes from decelerating operation to accelerating operation or when a detection is made that the detected moving speed becomes equal to or lower than a predetermined speed.

REFERENCES:
patent: 4332461 (1982-06-01), Cail et al.
patent: 4561764 (1985-12-01), Sugiura
patent: 4561771 (1985-12-01), Sugiura
patent: 4595281 (1986-06-01), Oushiden et al.
patent: 5062006 (1991-10-01), Miura

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