Incremental printing of symbolic information – Ink jet – Medium and processing means
Patent
1993-04-30
1995-04-11
Hartary, Joseph W.
Incremental printing of symbolic information
Ink jet
Medium and processing means
219216, B41J 201
Patent
active
054063213
ABSTRACT:
An ink-jet printer having improved print quality and full color printing capability on plain paper media. To accommodate placement of both input and output media trays on the same side of the printer housing for operator convenience, a paper path with a direction reversal is employed. A paper preconditioning preheater with a curved surface and a multi-purpose paper path component accomplish the direction reversal. As the print medium is driven through the paper path, it contacts the preheater. The preheating dries and shrinks the paper to condition it for the printing operation. The preheater is a thin flexible film carrying heating elements, and is suspended in air, to provide extremely low thermal mass and eliminate the need for long warmup times. The preheater defines a first, hotter, preheating area adjacent the printing area, and a second, cooler, preheating area separated from the printing area by the first preheating area.
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Broder Damon W.
Schwiebert William H.
Hartary Joseph W.
Hewlett--Packard Company
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