Variable magnification copying apparatus

Details Variable magnification copying apparatus Variable magnification copying apparatus

1982-09-29

1984-03-06

Prescott, A. C.

Photocopying

Including fiber optics

355 55, 355 56, 355 66, 355 14E, G03G 1500

Patent

active

044350708

ABSTRACT:
A variable magnification copying apparatus which includes a first shaft having thereon a plurality of gears different in diameter, a second shaft having thereon a plurality of gears different in diameter, the gears of smaller diameters on the second shaft corresponding to the gears of larger diameters on the first shaft, a cam shaft having thereon a plurality of cams corresponding to the pairs of gears on the first and second shafts, a lever biased so as to bear against each of the cams, and a relay gear rotatably supported on each of the levers, and in which the movement of the levers is controlled by intermittent rotation of the cam shaft, the gears on the first shaft are operatively associated with the gears on the second shaft through the relay gears on the controlled levers, and the number of relative rotations of the first and second shafts is varied by the gear ratio of the operatively associated gears, whereby the ratio of the original scanning velocity to the velocity of a photosensitive medium is changed correspondingly to a selected magnification.

REFERENCES:
patent: 3357325 (1967-12-01), Eichorn et al.
patent: 3653756 (1972-04-01), Mielnikonski et al.
patent: 3884574 (1975-05-01), Doi et al.
patent: 3900256 (1975-08-01), Ravera et al.
patent: 4175850 (1979-11-01), Bujese
patent: 4190349 (1980-02-01), Ohno et al.
patent: 4295731 (1981-10-01), Sasaki et al.

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