Typewriting machines – Typewriter controls other information recorder
Reexamination Certificate
2006-02-14
2006-02-14
Hirshfeld, Andrew H. (Department: 2854)
Typewriting machines
Typewriter controls other information recorder
C347S013000, C347S085000, C347S086000
Reexamination Certificate
active
06997625
ABSTRACT:
An ink distribution assembly for a printhead has a duct cover in which is formed a number of ink inlet ports. Each inlet port is associated with a cross flow channel that extends from a port to a duct opening. The duct cover seals against a distribution molding and the distribution molding has a longitudinal axis and a number of ducts running in parallel along the axis. Each duct opening of the duct cover is located in registry with a duct so that each port is in fluid communication with only one duct. All of the ducts having a lower duct portion which is in fluid communication with an upper layer of a laminated ink distribution structure. The laminated ink distribution structure having a first layer and a number of subsequent layers, each subsequent layer having vertical passages and transverse channels for bringing a fluid from a duct, via the first layer, to one of a number of printhead chips.
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Derwent Abstract Accession No 99-089545/08, JP 10-324003 A (Tokyo Electric Co Ltd) Dec. 8, 1998 Abstract*.
Derwent Abstract Accession No 98-461584/40, JP 10-193626 (Brother Kogyo KK) Jul. 28, 1998 Abstract*.
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Hirshfeld Andrew H.
Williams Kevin D.
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