METHOD AND APPARATUS FOR CONTROLLING MOTOR OF PRINTER

Japanese Patent JP3783229

B2

PROBLEM TO BE SOLVED: To enhance print processing speed without performing duty control for a motor if the heat storage quantity of the motor being driven in a printing process is sufficiently low, when a next printing process is performed following to a first printing process.
SOLUTION: Every time when a CM 13 is started, a CM side waiting time calculating section 59 reads in heat storage quantity calculation value data from a CM side heat storage quantity calculating section 61 and compares it with a preset threshold of heat storage quantity. When a decision is made that the sum of that data and a heating value possibly generated in the CM 13 through driving of this time exceeds a threshold, a CM drive section 55 is informed so as to prohibit starting of the CM 13 and an operation for determining the time elapsing before starting a next pass, i.e., a waiting time, is performed in order to prevent the heating value of the CM 13 from exceeding the threshold. When the elapse of the waiting time is recognized, the CM drive section 55 is informed so as to release the prohibition. A PFM side waiting time calculating section 67 also performs a similar operation.

JPS5948859	[Title of the device] Drive mechanism of a small printer
JPH02229066	MOTOR SPEED CONTROLLING CIRCUIT OF PRINTER
JPH0482763	RECORDING DEVICE

Kajiwara Riki

JP2001262092A

June 07, 2006

August 30, 2001

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Seiko Epson Corporation

B41J19/18; H02H6/00; H02P7/00; H02P7/06; H02P8/36; H02P8/38; H02P29/02; (IPC1-7): H02P7/00; B41J19/18; H02H6/00; H02P7/06; H02P8/38

JP2001224189A
JP2001078476A
JP6014574A
JP4153071A
JP3239198A

Wilfort International Patent Office
Teruyuki Uemura
Miyagawa Nagao
Takeshi Nakamura

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