Duplex printing device

Details Duplex printing device Duplex printing device

1987-11-30

1989-11-07

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

Photographing on both sides of photo-sensitive paper

355 24, 271225, 271186, G03B 2732, G03B 2752

Patent

active

048795712

ABSTRACT:
The invention provides apparatus for coupling a pair of imaging units to receive paper along a first path from a first unit, and to invert and transfer the paper along a second path entering the second unit. Embodiments include one which in addition to inverting the paper provides an alternative path for paper so that the paper passes through one imaging unit only, and one which allows paper to pass through one or the other of the imaging units selectively.

REFERENCES:
patent: 3548783 (1970-12-01), Knapp
patent: 3942785 (1976-03-01), Stange
patent: 4579446 (1986-04-01), Fujino et al.

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