Copying machine with registration adjusting device

Details Copying machine with registration adjusting device Copying machine with registration adjusting device

1993-08-24

1994-10-11

Smith, Matthew S.

Photocopying

Contact printing

Light boxes

271228, 271242, 271265, 271275, 355208, 355308, G03G 1500

Patent

active

053552067

ABSTRACT:
A copying machine in which an image of a document placed on a platen is optically read and transferred on a transfer sheet sent out from a sheet feeding cassette. The temporary stop times of transfer sheets at the registration unit are averaged after transfer sheets in each sheet feeding cassette have been copied. The obtained average is compared with a predetermined reference value. The start of the sheet feeding operation by sheet feeding cassette is advanced in accordance with the result of the comparison.

REFERENCES:
patent: 4025187 (1977-05-01), Taylor et al.
patent: 4214833 (1980-07-01), Kouo
patent: 4429986 (1984-02-01), Abe et al.
patent: 4548394 (1985-10-01), Koyama et al.
patent: 5018718 (1991-05-01), Matsuno et al.
patent: 5057874 (1991-10-01), Miyazaki et al.
patent: 5073802 (1991-12-01), Sugiyama
patent: 5112038 (1992-05-01), Dunaway
patent: 5136342 (1992-08-01), Ida et al.
patent: 5278623 (1994-01-01), Kasahara et al.
patent: 5298958 (1994-03-01), Takahashi

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