| 摘要 |
A printing paper 70 has memory elements 80 arranged on an upper left corner and a lower right corner on the surface thereof. Each of the memory elements 80 stores printing information used for printing, such as a paper size and a paper type, and transmits the printing information by radio wave, when receiving radio wave of a preset wavelength. A printer 20 has two information collection units 50 attached to a left end and a right end on a rear side of a carriage mechanism 30 . Each of the information collection units 50 transmits the radio wave of the preset wavelength and receives the printing information transmitted from the memory element 80 in response to reception of this transmitted radio wave. The printing paper 70 is set in the printer 20 and is used for printing. The printer 20 carries out printing with settings of a paper size, a paper type, and a paper direction, based on the printing information received by the information collection unit 50.
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