Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2008-04-15
2008-04-15
Hsieh, Shih-Wen (Department: 2861)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S067000
Reexamination Certificate
active
07357475
ABSTRACT:
A printhead for an inkjet printer, with an array of nozzles for selectively ejecting drops of ink towards a print medium, and a protective structure between said nozzles and said print medium. The structure is configured so as not to obstruct ink drops ejected from the nozzles. The printhead also has an air supply for supplying positive air pressure to the protective structure, the air supply having an air intake with a filter and shut off valve for stopping air supply to the structure when the printer is in a non-printing operational mode; and, an air distribution ducting having one or more air passages in communication with the protective structure. The shut off valve has an apertured member with a plurality of apertures corresponding to each of the air passages. The apertured member is movable between a valve open position in which the air apertures are in communication with the air passages and a valve closed position in which the air apertures are not in communication with said air passages.
REFERENCES:
patent: 4417259 (1983-11-01), Maeda
patent: 4555717 (1985-11-01), Miura et al.
patent: 4591873 (1986-05-01), McCann et al.
patent: 4736212 (1988-04-01), Oda et al.
patent: 4959662 (1990-09-01), Kobayashi
patent: 5065169 (1991-11-01), Vincent et al.
patent: 5798774 (1998-08-01), Okada et al.
patent: 6281912 (2001-08-01), Silverbrook
patent: 7055930 (2006-06-01), Silverbrook
patent: 0252676 (1988-01-01), None
patent: 604029 (1994-06-01), None
patent: 03234539 (1991-10-01), None
patent: 10138461 (1998-05-01), None
patent: 10153453 (1998-06-01), None
patent: 2000-506075 (2000-05-01), None
Hsieh Shih-Wen
Silverbrook Research Pty Ltd
LandOfFree
Filtered air supply for nozzle guard does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filtered air supply for nozzle guard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filtered air supply for nozzle guard will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2795455