Scanner apparatus

Details Scanner apparatus Scanner apparatus

1990-12-27

1992-03-03

Hix, L. T.

Photocopying

Projection printing and copying cameras

Identifying, composing, or selecting

355 77, G03B 2752

Patent

active

050936859

ABSTRACT:
Scanner apparatus is disclosed for providing relative movement between a receiving medium and a recording device. The scanner apparatus comprises an elongated bar which supports the receiving medium. The bar is mounted for movement in a pair of support blocks. A movable support block is adapted to grip the bar and move the bar through a series of small steps of a fixed distance. The movable support block releases the bar at the completion of each step and returns to a starting position. When the movable support block releases the bar after each step, a fixed support block clamps the bar in position. In the operation of apparatus such as a laser printer, the fixed support block holds the receiving medium in a fixed position during the scan of one line of data, and the movable support block moves the carriage one step between line scans.

REFERENCES:
patent: 2795418 (1957-06-01), De La Motte
patent: 3161323 (1964-12-01), Bent
patent: 3767301 (1973-10-01), Solo
patent: 4471888 (1984-09-01), Herb et al.
patent: 4505578 (1985-03-01), Balasubramanian
patent: 4776490 (1988-10-01), Wingert
patent: 4849795 (1989-07-01), Spehrley, Jr. et al.

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