Photocopying – Projection printing and copying cameras – Original moves continuously
Patent
1974-11-12
1976-11-16
Hix, L. T.
Photocopying
Projection printing and copying cameras
Original moves continuously
355 8, 355 49, 355 66, G03B 2770
Patent
active
039920933
ABSTRACT:
A document copying machine is disclosed, of the type in which the original moves reciprocally relative to an illumination slot so as to be exposed line-by-line from one end to the other, a receptor element, which may be a copy sheet taken from a supply stack, a selenium drum or other receptor surface, moving in one direction and having an image of the original transmitted to it by image beam guide devices located between the illumination slot and the receptor element. The machine has double the productive capacity of conventional copying machines where there is relative movement of the original and the exposure or illumination slot, in that a copy-producing image is transmitted, on relative movement of the original and the slot in one direction, on to a receptor element and a second copy-producing image is transmitted, on opposite relative movement of the original and the slot, on to a second receptor element or on to the same receptor element moved to a further position. The images of the original are transmitted by way of reflector or prism systems cooperating with at least one objective lens in such a way that an image of the original is transmitted true-to-line by one system as relative movement of the original and the slot takes place in one direction and a second image of the original is transmitted, again true-to-line by reason of line and side reversal, as relative movement of the original and the slot takes place in the other direction, the second reflector or prism system moving into place or otherwise becoming operative, instead of the first reflector or prism system, as the original and the slot reach the end of their relative movement in the first direction.
REFERENCES:
patent: 3216316 (1965-11-01), Brownscombe
patent: 3625606 (1971-12-01), Rosenberg
Hix L. T,.
LaBarre J. A.
Lumoprint Zindler KG
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