Ink jet printing apparatus and ink jet printing method
AssigneeCanon Kabushiki Kaisha
InventorKiichiro Takahashi
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Abstract
This invention provides an ink jet printing method which ejects different kinds of ink from print heads onto a print medium to form an image according to print data transferred from a predetermined print data source and which can deal with both a normal print data transfer mode and an offset transfer mode. This printing method discriminates the data transfer mode of the print data transferred from the predetermined print data source and sets, in each of the print heads independently, positions of those of the plurality of nozzles that are to be used for printing. Then, the printing method controls the positions of the nozzles to be used according to the data transfer mode discriminated.
Claims7
An ink jet printing apparatus having printing means, wherein the printing means has an array of print heads, each formed with a plurality of nozzles for ejecting ink, the print heads being adapted to eject different kinds of ink onto a print medium to form an image according to print data transferred from a predetermined print data source, the ink jet printing apparatus comprising:
- descrimination means for discriminating a data transfer mode of the print data transferred from the predetermined print data source;
- and
- print head control means for setting, in each of the print heads independently, positions of those of the plurality of nozzles that are to be used for printing;
- wherein the print head control means controls the positions of the nozzles to be used according to the data transfer mode which is discriminated by said discrimination means.
An ink jet printing method using printing means, wherein the printing means has an array of print heads, each formed with a plurality of nozzles for ejecting ink, the print heads being adapted to eject different kinds of ink onto a print medium to form an image according to print data transferred from a predetermined print data source, the ink jet printing method comprising:
- a discrimination step for discriminating a data transfer mode of the print data transferred from the predetermined print data source;
- and
- a nozzle setting step for setting, in each of the print heads independently, positions of those of the plurality of nozzles that are to be used for printing;
- wherein the positions of the nozzles to be used are controlled according to the data transfer mode discriminated by the discrimination step.
Dependencies are inferred from the claim text.