Variable-magnification copying machine with automatic magnificat

Details Variable-magnification copying machine with automatic magnificat Variable-magnification copying machine with automatic magnificat

1986-09-24

1987-12-22

Hix, L. T.

Photocopying

Projection printing and copying cameras

Focus or magnification control

355 14R, G03B 2752

Patent

active

047149442

ABSTRACT:
Disclosed is a variable-magnification copying machine which provides means for easily performing copying operations using variable magnifications against the desired copying paper from either a standard or an off-standard size draft paper.
The preferred embodiment provides means for automatically setting the magnification by first manually inputting data denoting the length of the horizontal and vertical edges of the draft paper, followed by computing the ratio between the horizontal and vertical lengths by applying the input length data of the draft paper and the preset size of the available copying paper so that the smaller ratio produced from the computation can be eventually set as the correct magnification.

REFERENCES:
patent: 4126389 (1978-11-01), Ikeda et al.
patent: 4302098 (1981-11-01), Kan et al.
patent: 4332464 (1982-06-01), Bartulis et al.
patent: 4505579 (1985-03-01), Furuichi
patent: 4582417 (1986-04-01), Yagasaki et al.

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