Inkjet printhead having intermittent nozzle clearing

Details Inkjet printhead having intermittent nozzle clearing Inkjet printhead having intermittent nozzle clearing

1994-07-29

1998-01-20

Barlow, Jr., John E.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 19, B41J 2165

Patent

active

057105812

ABSTRACT:
A method and apparatus clears blocked nozzles in an inkjet primer printhead by placing the printhead in a position relative to a service station such that ink which is expelled from the nozzles is captured without reaching the medium upon which printing is to occur. Ink is expelled for a first time segment from each nozzle in a first pattern for a number of nozzle expulsions. Following the first time segment, a pause period is entered. Following the pause, ink is expelled in a second time segment from each nozzle in a second pattern for a second number of nozzle expulsions before the printer enters the print status mode.

REFERENCES:
patent: 4791434 (1988-12-01), Smith et al.
patent: 4977459 (1990-12-01), Ebinuma et al.
patent: 5109234 (1992-04-01), Otis, Jr. et al.
patent: 5185615 (1993-02-01), Koitabashi et al.
patent: 5187500 (1993-02-01), Bohorques et al.
patent: 5428380 (1995-06-01), Ebisawa
Michael T. Dangelo, et al., "Print Cartridge Fixturing and Maintenance in the HP DeskJet 1200 C Printer", Hewlett-Packard Journal, Feb. 1994, vol. 45, No. 1, pp. 67-71.
William S. Colburn et al., "Automated Assembly and Testing of HP DeskJet 1200 C Print Cartridges", Hewlett-Packard Journal, Feb. 1994, vol. 45, No. 1, pp. 79-84.
Hewlett-Packard Company, "HP DeskWriter 560C Users Guide", Manual No. C2169-90010, Dec. 1993, p. 4-11.
Hewlett-Packard Company "HP Deskwriter 560C Setup Guide", Manual No. C2169-90036, Dec. 1993, p. 17.

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