Apparatus and method for duplex printing

Details Apparatus and method for duplex printing Apparatus and method for duplex printing

1995-10-31

1998-03-24

Bennett, Christopher A.

Typewriting machines

Code-printing typewriter

For typing and encoding

400708, 400105, 358296, B41J 500

Patent

active

057305331

ABSTRACT:
A duplex printing system and a printing method which enables printing of the second side of substrate in any desired order is provided. The printing system includes a printing unit, a reader and a processing unit. In the first pass, the printing unit receives a digital representation of a first image and at least one machine readable code and prints the first image and the machine readable code on a first side of a printing substrate. In the second pass, the reader identifies the printed machine readable code, preferably a bar-code, and provides it to the processing unit. The processing unit provides the digital representation of a second image associated with the machine readable code to the printing unit for printing a second image on a second side of the printing substrate, preferably, but not necessarily, in an orientation which is generally similar to the orientation of the printed first image and in registration therebetween.

REFERENCES:
patent: 4725156 (1988-02-01), Proulx
patent: 4902139 (1990-02-01), Adiutori
patent: 4903139 (1990-02-01), Minter
patent: 5241397 (1993-08-01), Yamada
patent: 5397192 (1995-03-01), Khormaee

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