Patent ID: 7959247
Filing Date: 2011-06-14
Classification: B41J

Abstract:
1. An ink-jet printer, comprising: a platen for supporting a print medium during movement of the print medium along a print medium transport direction, the platen having a heater; a print head disposed in confronting relation to the platen for performing scanning in a direction intersecting the print medium transport direction and for ejecting ink dots to the print medium while the print medium is supported by the platen to thereby perform printing on the print medium, heater control means for dividing a portion of the platen into a plurality of blocks in the print medium transport direction and in a direction intersecting the print medium transport direction such that the blocks become smaller in width in a scanning direction toward both ends of the platen, and for controlling an output of the heater for each of the blocks to thereby perform control for making a surface temperature of the print medium uniform, measurement means for measuring the surface temperature of a plurality of portions of the print medium supported by the platen; and averaged output value calculation means for calculating an output value of the heater for making the surface temperature of each of the plurality of portions of the print medium uniform based on the surface temperature measured by the measurement means, the heater control means controlling the output of the heater based on the output value calculated by the averaged output value calculation means.