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US 6,672,703 B2Granted
Inkjet printing apparatus and printing system
AssigneeCanon Kabushiki Kaisha
InventorTetsushi Kohno
Life of this patent
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AssigneeCanon Kabushiki Kaisha
InventorTetsushi Kohno
Estimating the term…
In an inkjet printer having device for executing recovery processing by ink suction to make the ink ejection state of a printing head favorable, increase in ink consumption due to recovery processing is suppressed properly while maintaining ejection quality. When it is judged that recovery processing is necessary due to exchange of a head or an ink tank, this information is stored in a RAM and an EEPROM. Only before execution of print, recovery processing is executed when it is determined that the recovery processing is necessary based on the information. At the execution, the information is cleared to a recovery unnecessary state. As the information is held in the EEPROM, necessity of the recovery processing after power supply ON is determined based on a recovery processing execution state before the power supply was turned off. Therefore, suction recovery processing is executed without waste at a proper timing.
An inkjet printing apparatus for printing on a printing medium by using a printing head for ejecting ink, comprising:
A printing system comprising a printing apparatus for performing printing on a printing medium by using a printing head and an image data supplying apparatus for supplying an image data to be printed to said printing apparatus, said printing apparatus having recovery processing means for making an ink ejection state of the ink favorable, said system comprising:
Dependencies are inferred from the claim text.