Typewriting machines – Including plural – independently supported key-boards,...
Reexamination Certificate
2002-01-30
2003-12-16
Hirshfeld, Andrew H. (Department: 2854)
Typewriting machines
Including plural, independently supported key-boards,...
C101S332000, C101S223000, C101S211000, C101S230000, C101S229000, C347S004000, C347S005000, C347S037000
Reexamination Certificate
active
06663304
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to printers, and more particularly, to printers having a capability of simultaneously printing on two sides of a medium.
As more people have begun utilizing printers, prices have dropped, and printers have become even more available for small business uses. Typically, printers print on one side of a medium in accordance with signals from a computing device. The computing device may be a desktop printer, an electronic cash register, a hand held device, or the like.
Printers such as daisy/inkjet/laser printers have been limited to printing on one side of a printing medium. In such a system, in order to print on both sides of the print medium, the print medium must be flipped over manually or alternatively, a mechanical multiplexing or duplexing device may be used to turn the print medium over.
SUMMARY OF THE INVENTION
The present invention provides a method, printer system and printer apparatus for simultaneously printing on a first print medium and a second print medium, wherein, on the first print medium first information is printed that is one of: identical to second information printed on the second print medium and has information different from second information printed on the second print medium.
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Serra Josep Maria
Thiessen Kurt Eugene
Vives Juan C.
Hamdan Wasseem H.
Hewlett--Packard Development Company, L.P.
Hirshfeld Andrew H.
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