Recording apparatus and recording temperature control method
First Claim
1. A recording apparatus for forming print dots on a recording medium, each page of the recording medium including a plurality of bands, the recording apparatus comprising:
- a print head for thermally forming print dots on a recording medium;
head temperature detecting means for detecting a temperature of the print head;
environment temperature detecting means for detecting an environment temperature; and
print control means for controlling formation of print dots by the print head based on an image to be printed while controlling movement of the print head, and for setting a cooling time for each band of the plurality of bands based on at least two of a temperature increase time from a time point when the head temperature detecting means detects a first temperature of the print head and a time point when it detects a second temperature of the print head, the number of print dots to be formed during the temperature increase time, and the environment temperature detected by the environment temperature detecting means.
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Abstract
A controller receives a signal indicating the temperature of a print head from a head temperature detection thermistor. The controller sets a cooling time for the print head based on a time in which the temperature of the print head increase from a first temperature to a second temperature and an environment temperature detected by an environment temperature detection thermistor. When the temperature of the print head exceeds the second temperature due to excessive heat accumulation therein, printing and movement of the print head are suspended for the cooling time immediately after completion of printing of one or a plurality of bands at a position where the print head is located at that time. Thus, the temperature of the print head is decreased.
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Citations
18 Claims
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1. A recording apparatus for forming print dots on a recording medium, each page of the recording medium including a plurality of bands, the recording apparatus comprising:
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a print head for thermally forming print dots on a recording medium; head temperature detecting means for detecting a temperature of the print head; environment temperature detecting means for detecting an environment temperature; and print control means for controlling formation of print dots by the print head based on an image to be printed while controlling movement of the print head, and for setting a cooling time for each band of the plurality of bands based on at least two of a temperature increase time from a time point when the head temperature detecting means detects a first temperature of the print head and a time point when it detects a second temperature of the print head, the number of print dots to be formed during the temperature increase time, and the environment temperature detected by the environment temperature detecting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A recording method for controlling formation of print dots on a recording medium by a print head in accordance with an image to be printed while controlling movement of the print head, each page of the recording medium including a plurality of bands, comprising the steps of:
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measuring a temperature increase time in which a temperature of the print head increases from a first temperature to a second temperature; calculating print density from at least the temperature increase time; and determining a cooling time for each band of the plurality of bands based on at least one of the print density and the temperature increase time. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification