Back to results
US 8,985,721 B2Granted
Printing apparatus and aging method
AssigneeCanon Kabushiki Kaisha
InventorsKeiji Tomizawa, Chiaki Muraoka, Takuma Kodoi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCanon Kabushiki Kaisha
InventorsKeiji Tomizawa, Chiaki Muraoka, Takuma Kodoi
Estimating the term…
An embodiment of this invention is directed to preventing a decrease in the number of media printable with ink in an ink tank owing to an increase in waste ink in aging processing, and an increase in aging processing time. According to the embodiment, aging processing is executed as follows in a printing apparatus in which a printhead including a plurality of nozzles and a nozzle array formed from these nozzles and discharge ink is reciprocally scanned in a direction different from the direction of the nozzle array, and an image is printed by forward printing and backward printing. The aging processing is performed by changing the count at which the aging processing is performed, between nozzles at the edge side portion of the nozzle array and nozzles at the center side portion of the nozzle array.
A printing apparatus in which a printhead including a plurality of electrothermal transducers and a nozzle array formed from a plurality of nozzles configured to correspond to the plurality of electrothermal transducers and discharge ink is reciprocally scanned in a direction different from a direction of the nozzle array, and an image is printed on a printing medium by forward printing and backward printing by the printhead, comprising:
An aging method for a printing apparatus in which a printhead including a plurality of electrothermal transducers and a nozzle array formed from a plurality of nozzles configured to correspond to the plurality of electrothermal transducers and discharge ink is reciprocally scanned in a direction different from a direction of the nozzle array, and an image is printed on a printing medium by forward printing and backward printing by the printhead, comprising:
An aging method for a liquid discharge head, comprising:
Dependencies are inferred from the claim text.