Control program for printer nozzle recovery

Details Control program for printer nozzle recovery Control program for printer nozzle recovery

2007-07-17

2007-07-17

Tran, Douglas Q. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Dot matrix array

C358S001150

Reexamination Certificate

active

10440193

ABSTRACT:
The invention is directed toward improving the efficiency with which an ink-jet printing apparatus performs preliminary discharging of ink. Specifically, the host apparatus of a printer specifies, as part of image data, the timing at which the printer is to execute printhead recovery. The host computer acquires information relating to the nozzle arrangement of the printer and determines, from this nozzle arrangement information and rendered image data, the nozzle number of any nozzle that has failed to discharge ink for more than a predetermined number of scans. When image data is rendered with regard to non-discharging nozzles, preliminary-discharge image data is combined with this data and the combined data is transmitted to the printer.

REFERENCES:
patent: 6089695 (2000-07-01), Takagi et al.
patent: 6540318 (2003-04-01), Ikeda
patent: 6659580 (2003-12-01), Horikoshi

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