Thermal printer and drive control method of thermal head
AssigneeToshiba Tec Kabushiki Kaisha
InventorFumiharu Iwasaki
Life of this patent
Estimating the term…
Abstract
A thermal printer includes a first thermal head which is so provided as to be brought into contact with one side of a paper, a second thermal head which is so provided as to be brought into contact with the other side of the paper, and a controller. The first thermal head energizes a plurality of heater elements to print dot image data on one side of the paper. The second thermal head energizes a plurality of heater elements to print dot image data on the other side of the paper. The controller is configured to shift the energization times between the first thermal head and second thermal head.
Claims6
A thermal printer comprising:
- a first thermal head which is so provided as to be brought into contact with one side of a paper and energizes a plurality of heater elements to print dot image data on the one side of the paper;
- a second thermal head which is so provided as to be brought into contact with the other side of the paper and energizes a plurality of heater elements to print dot image data on the other side of the paper;
- and
- a controller configured to set energization cycles of the first and second thermal heads to the time period more than double the energization time required for the first and second thermal heads to print one dot-line data, energizes one of the first and second thermal heads, and starts energizing the other thermal head at the timing at which the energization for the one thermal head is completed, the controller controls the energization cycles of the first and second thermal heads such that the energization time required for the first thermal head to print one dot-line data and energization time required for the second thermal head to print one dot-line data do not overlap each other.
A thermal head drive control method of a thermal printer comprising:
- a first thermal head which is so provided as to be brought into contact with one side of a paper and energizes a plurality of heater elements to print on the one side of the paper;
- and
- a second thermal head which is so provided as to be brought into contact with the other side of the paper and energizes a plurality of heater elements to print on the other side of the paper;
- setting energization cycles of the first and second thermal heads to the time period more than double the energization time required for the first and second thermal heads to print one dot-line data, energizing one of the first and second thermal heads, and starting energizing the other thermal head at the timing at which the energization for the one thermal head is completed;
- controlling the energization cycles of the first and second thermal heads such that the energization time required for the first thermal head to print one dot-line data and energization time required for the second thermal head to print one dot-line data do not overlap each other.
Dependencies are inferred from the claim text.