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AssigneeCanon Kabushiki Kaisha
InventorsKei Kosaka, Minoru Teshigawara, Atsushi Sakamoto, Takeshi Murase, Yoshiyuki Honda
Estimating the term…
There is provided an inkjet printing apparatus which can output a stable image without density unevenness by performing appropriate drive control to print elements based upon an appropriate representative temperature of a chip whatever image data is printed on a print medium. For this purpose, detection temperatures of a plurality of temperature sensors are lined up in high temperature order, and coefficients by which the respective detection temperatures are multiplied, are determined to be associated with that order at the lining-up, determining a representative temperature by the weighted average method. The common drive pulse associated with to the individual chip based upon the representative temperature thus obtained, to be applied thereto. Thereby even if temperature variations of print elements on the chip exist, it is possible to appropriately control the entire chip in temperature.
An inkjet printing apparatus comprising:
An inkjet printing method for an inkjet printing apparatus using a print head for printing, that has a substrate provided with an element array in which a plurality of print elements for ejecting ink by applying drive pulses thereto are arranged and a plurality of temperature sensors for temperature measurement, comprising:
Dependencies are inferred from the claim text.