| 摘要 |
A calibration for the printing apparatus is performed under relatively easy management by a host computer and then the printing apparatus always can perform printing in a condition where an appropriate calibration is made for the printing apparatus. More specifically, the printer holds calibration data downloaded from the host computer and executes a density control (S 1001 ) which generates calibration data at a predetermined timing independently in the printer. Then, the printer checks whether a difference between a print density value represented by the calibration data generated in the printer and a print density value represented by the calibration data held is greater than a predetermined threshold value (S 1003 ). When the difference is greater than the predetermined value, the printer notifies an error (S 1004 ) and sets a correction table based on the calibration data generated by the printer (S 1006 ).
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