Printing apparatus and image processing apparatus
AssigneeCanon Finetech Inc.
InventorsMoriyoshi Inaba, Shinichi Saijo, Naohisa Obata, Jouji Odaka
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Abstract
This invention provides a printing apparatus and an information processing apparatus which can process precise information on the number of pixels printed by nozzles of the print head without degrading throughput and properly manage the service life of the print head. To this end, a plurality of nozzles of the print head are divided into a plurality of blocks and a nozzle in each of the blocks which prints a maximum number of pixels in a predetermined unit print volume is taken to be a representative nozzle. In each of the blocks, the numbers of pixels printed by the representative nozzle for every unit print volume are accumulated and managed.
Claims17
A printing apparatus for printing an image on a print medium by using a print head capable of ejecting ink from a plurality of nozzles, the plurality of nozzles being divided into a plurality of blocks, and an accumulated number of pixels printed by the nozzles being managed for each of the blocks;
- the printing apparatus comprising:
- management means for picking up from among the nozzles in each of the blocks a representative nozzle which prints a maximum number of pixels in a predetermined unit print volume, accumulating the number of pixels printed by the representative nozzle in each of the predetermined unit print volumes, and managing the accumulated result.
A printing apparatus for printing an image on a print medium by using a print head capable of ejecting ink from a plurality of nozzles, the plurality of nozzles being divided into a plurality of blocks, and an accumulated number of pixels printed by the nozzles being managed for each of the blocks;
- the printing apparatus comprising:
- management means for multiplying the number of standard image pixels printed by a representative nozzle in each of the blocks in a predetermined unit print volume by a print volume on the print medium, and managing the multiplied result.
An image processing apparatus for sending print data to a printing apparatus, the printing apparatus printing an image on a print medium by using a print head capable of ejecting ink from a plurality of nozzles, the plurality of nozzles being divided into a plurality of blocks, and an accumulated number of pixels printed by the nozzles being managed for each of the blocks;
- wherein
- the printing apparatus comprises management means for multiplying the number of standard image pixels printed by a representative nozzle in each of the blocks in a predetermined unit print volume by a print volume on the print medium, and managing the multiplied result;
- the image processing apparatus comprises transmission means for sending information on the number of standard image pixels to the printing apparatus.
Dependencies are inferred from the claim text.