Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1997-06-10
1999-09-14
Le, N.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
B41J 2175
Patent
active
059530324
ABSTRACT:
A process is provided for forming a barrier layer over one or more extending sections of a flexible circuit and one or more bond pads of a print cartridge printhead using an encapsulant material and subsequently inspecting the print cartridge to determine if the encapsulant material has been properly placed on the print cartridge. The process involves providing an inspection mark on an orifice plate of the printhead before the barrier layer is formed. After the barrier layer has been formed, an inspection is made to determine if the barrier layer extends beyond the inspection mark and contacts a second portion of the print cartridge. If it does, then the print cartridge is unacceptable. If not, then the print cartridge is acceptable. Alternatively, the location of the barrier layer may be considered unacceptable if it contacts any portion of the inspection mark even though it may not contact the second portion of the print cartridge.
REFERENCES:
patent: 5439956 (1995-08-01), Noguchi
patent: 5442386 (1995-08-01), Childers et al.
patent: 5519421 (1996-05-01), Barr et al.
patent: 5538586 (1996-07-01), Swanson et al.
patent: 5604521 (1997-02-01), Merkel et al.
G. L. Fillmore & A. R. Hoffman, "Ink Jet Nozzle Mounting", from IBM Technical Disclosure Bulletin, Apr., 1977, vol. 19, No. 11.
Haarz Leea Danielle
Jackson Tonya Harris
Saldanha Singh Jeanne Marie
Brady John A.
Le N.
Lexmark International Inc.
Vo Anh T. N.
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