| 摘要 |
PROBLEM TO BE SOLVED: To contribute to reduction of overall costs and to easily achieve a higher printing speed, higher printing accuracy, and energy saving based on lower power consumption.SOLUTION: When a recording sheet P is conveyed in a sub-scanning direction Fs, and printing is performed on the recording sheet P by using a plurality of thermal heads 2a... having a plurality of heating elements p... and arranged in a main scanning direction Fm, the position of each thermal head 2a is fixed in the main scanning direction Fm and the sub-scanning direction Fs, and the numbers (set number) Ns and Nse of heating elements p... simultaneously driven according to the size of allowed power consumption are set beforehand for the plurality of heating elements p... of the thermal heads 2a.... During printing, the heating elements p... of the thermal heads 2a... are simultaneously driven for each set number Ns, Nse, to sequentially perform printing. |
