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Title:
INK FEED SLOT FORMATION IN INK-JET PRINTHEADS
Document Type and Number:
WIPO Patent Application WO2001054863
Kind Code:
A3
Abstract:
A technique for controlling the abrasive jet machining process to drill an ink feed slot (40) through an ink jet printhead substrate (25). The approach results in a relatively even slot edge (52) adjacent to channels (36) that supply the ink-droplet firing chambers (26) of the printhead (20). The evenness of the edge (52) reduces the tolerances required for designing the channels (36) and other printhead components, thus permitting the construction of printheads with increased droplet ejection frequency. The printhead size is correspondingly reduced.

Inventors:
POLLARD JEFFREY R (US)
PETTIT THOMAS E (US)
BUSWELL SHEN (US)
GODWIN NICHOLE (US)
Application Number:
PCT/US2001/002824
Publication Date:
April 04, 2002
Filing Date:
January 26, 2001
Export Citation:
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Assignee:
HEWLETT PACKARD CO (US)
POLLARD JEFFREY R (US)
PETTIT THOMAS E (US)
BUSWELL SHEN (US)
GODWIN NICHOLE (US)
International Classes:
B24C1/04; B41J2/14; B41J2/16; (IPC1-7): B24C1/04; B41J2/16; B41J2/14
Domestic Patent References:
WO1999034981A11999-07-15
WO2001005595A12001-01-25
WO1999065690A11999-12-23
WO2000000354A12000-01-06
Foreign References:
US5908349A1999-06-01
US5105588A1992-04-21
US5860849A1999-01-19
GB2277202A1994-10-19
EP0925932A21999-06-30
EP0842776A21998-05-20
EP0691204A11996-01-10
US5942900A1999-08-24
EP0736386A21996-10-09
DE19917595A11999-12-02
US5441593A1995-08-15
EP0401996A21990-12-12
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