Print engine for a pagewidth inkjet printer

Details Print engine for a pagewidth inkjet printer Print engine for a pagewidth inkjet printer

2007-04-10

2007-04-10

Colilla, Daniel J. (Department: 2854)

Typewriting machines

Sheet or web

For feeding sheet from stack or pack holder

C400S188000, C347S008000, C347S104000

Reexamination Certificate

active

10980277

ABSTRACT:
A print engine for a pagewidth inkjet printer includes a chassis. A pair of opposed printhead assemblies are mounted on the chassis to carry out a double-sided printing operation on a sheet of media interposed between the printhead assemblies. A pair of opposed feed rollers are mounted on the chassis and positioned upstream of the printhead assemblies to feed media between the printhead assemblies. Each printhead assembly includes at least one elongate ink distribution structure. A printhead chip is mounted on a free end of the, or each, ink distribution structure such that printhead chips on opposite ink distribution structures are aligned. The ink distribution structures are shaped so that a distance from at least one pair of aligned printhead chips to a point of contact between the rollers is less than a radius of the rollers.

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