Incremental printing of symbolic information – Ink jet – Controller
Patent
1997-08-08
2000-07-18
Le, N.
Incremental printing of symbolic information
Ink jet
Controller
347 9, 347 37, B41J 2205
Patent
active
060896922
ABSTRACT:
An ink jet printing apparatus is disclosed for producing gray scale image pixels on a received recording medium includes a plurality of electrical pulse activated ink-ejecting nozzles forming a one-dimensional array in a first direction. A plurality of nozzle control circuits apply electrical pulses to selected nozzles of the array so that each selected nozzle will deposit ink droplets on a received recording medium. A transport mechanism provides relative movement between the nozzle array and the medium in a second direction generally normal to the first direction. A transport mechanism control system provides intermittent relative movement between the nozzle array and the medium, and repeatedly pauses the relative movement while a plurality of droplets are selectively deposited by each nozzle of the array, whereby a pixel is formed having a gray scale level equal to the number of nozzles in the array multiplied by the number of pauses multiplied by the number of droplets that are selectively deposited by each nozzle during each pause, including zero droplets.
REFERENCES:
patent: 3946398 (1976-03-01), Kyser et al.
patent: 4065773 (1977-12-01), Berry
patent: 4166277 (1979-08-01), Cielo et al.
patent: 4275290 (1981-06-01), Cielo et al.
patent: 4412225 (1983-10-01), Yoshida et al.
patent: 4490728 (1984-12-01), Vaught et al.
patent: 4728968 (1988-03-01), Hillman et al.
patent: 4751531 (1988-06-01), Saito et al.
patent: 4967203 (1990-10-01), Doan et al.
patent: 4999646 (1991-03-01), Trask
patent: 5012257 (1991-04-01), Lowe et al.
patent: 5111302 (1992-05-01), Chan et al.
patent: 5252986 (1993-10-01), Takaoka et al.
patent: 5384587 (1995-01-01), Takagi et al.
patent: 5485180 (1996-01-01), Askeland et al.
patent: 5617123 (1997-04-01), Takaoka et al.
patent: 5805178 (1998-09-01), Silverbrook
Eastman Kodak Company
Hallacher Craig A.
Le N.
Sales Milton S.
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