Printing apparatus and processing method thereof

摘要

A printing apparatus includes a printhead configured to array a nozzle array in which a plurality of nozzles for discharging ink are arrayed in the first direction, a reading unit configured to read, as a plurality of luminance values aligned in a nozzle arrayed direction, an inspection pattern formed by discharging ink from the plurality of nozzles of the printhead, a calculation unit configured to calculate a plurality of difference values each by calculating a difference between two luminance values spaced apart by a predetermined number of luminance values, and an analysis unit configured to analyze an ink discharge state in the plurality of nozzles based on the plurality of difference values.

主权项

1. A printing apparatus comprising:
a printhead comprising a printing chip that includes a plurality of nozzles for discharging ink which are arranged in a first direction to form a nozzle array; a reading unit comprising a plurality of reading elements arranged in the first direction, and configured to read an inspection pattern formed by discharging ink from the plurality of nozzles, and acquire a plurality of luminance values through the plurality of reading elements; a calculation unit configured to calculate a plurality of difference values, wherein each difference value is calculated by calculating a difference between two luminance values, of the plurality of luminance values, which are spaced apart by a predetermined number of luminance values; and an analysis unit configured to analyze an ink discharge state of the plurality of nozzles based on the plurality of difference values.