Printer and pulse motor control method

Abstract

The invention provides a printer and a pulse motor control method. In a portable printer (10) that uses a pulse motor (4) for feeding a recording medium and includes a printing head (1) that prints the recording medium, a printer controller (19) that controls the printing head (1), and a pulse motor controller (18) that controls the pulse motor (4), rest level setting information having rest levels and rest times set in correspondence to one another is previously stored, the elapsed time after a printing process is started is counted, the operating time of the pulse motor (4) is counted, a rest level is determined based on the elapsed time after the printing process is started and the operating time of the pulse motor (4), a rest time is set by referring to the rest level setting information based on the determined rest level and a rest process is performed based on the thus set rest time.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority and benefit from Japanese Patent Application No. 2008-154292 filed on June 12, 2008, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to, for example, a portable printer and a pulse motor control method for printing using a thermal head. Background technique [0004] Conventionally, as a portable printer, there is a thermal printer equipped with a thermal head having a plurality of heat generating elements arranged in the width direction of a paper to be printed on. Thermal printers are usually powered by battery power. In the case of the thermal printer described in the patent document of the Japanese application, that is, Japanese Unexamined Patent Application Publication No. 2007-30263, when printing, by heating the heating element corresponding to the place of printing among the plurality of he...

AI Technical Summary

Problems solved by technology

[0006] However, when such a pulse motor is operated continuously, the temperature of the motor rises

There is the following problem: when the pulse motor is used continuously and the temperature of the motor exceeds a certain temperature, the pulse motor may be damaged

However, since the temperature sensor is expensive, there is a problem that it cannot be implemented at low cost

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