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Motor driver and recording apparatus incorporating the same

A motor driver and motor technology, applied in the direction of motor generator control, electrical components, printing devices, etc., can solve the problem of damage stop angle accuracy, etc.

Inactive Publication Date: 2006-08-30
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when the current selection loop is selected to draw a circle based on a specific value of VREF, the accuracy of the stop angle is destroyed because the angular spacing of the vector motion trajectory is not constant in each driving step.
On the other hand, when the circuit selection loop is selected so that the angular interval of the vector movement is fixed, the accuracy of the stop angle is similarly destroyed because the vector size is not fixed

Method used

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  • Motor driver and recording apparatus incorporating the same
  • Motor driver and recording apparatus incorporating the same
  • Motor driver and recording apparatus incorporating the same

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Embodiment Construction

[0050] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0051] As shown in FIG. 1 , an inkjet printer 100 includes an upper casing 101 and a lower casing 102 , and the inkjet printer is a type of recorder. The upper shell 101 and the lower shell 102 are connected to each other by clamping.

[0052] On the rear side of the upper housing 101, a paper feed port 103 is formed. In the paper feed port 103 , a paper feed tray 110 on which a stack of paper to be supplied is placed is connected. The paper feed tray 110 is attached so as to protrude diagonally toward the upper rear side, and the paper is kept in a slanted state.

[0053]On the front side of the upper housing 101, a paper output port 104 is formed. On the front side of the upper shell 101 and the lower shell 102, there is provided a card splice box 120 on which outputted paper is stacked. The card riser 120 is connected to the front...

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PUM

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Abstract

A first current supplier supplies a first current to a first phase coil of a motor. A second current supplier supplies a second current to a second phase coil of the motor. A current selector selects a value of the first current and a value of the second current, so as to make constant at least one of a magnitude of a synthetic vector obtained by the selected value of the first current and the selected value of the second current at every microstep driving step of the motor, and an angular interval between synthetic vectors corresponding to adjacent microstep driving steps of the motor.

Description

[0001] This application is a divisional application, the original application is: application number: 03121670.6, application date: March 14, 2003, invention name: motor driver and recorder including the motor driver. technical field [0002] The present invention relates to a system for driving a motor and a recorder provided with the motor drive. Background technique [0003] Generally, an inkjet printer configured as a recorder is fed by a paper feeder as a recording medium and fixed in a paper feed tray, and information is recorded on the paper by a recording head mounted on rollers. The roller reciprocates in the main scanning direction. The paper is conveyed intermittently by a certain amount in the auxiliary scanning direction by the conveying device. An inkjet printer is configured so that the feeder and transport are driven by a feed motor, the rollers are driven by a roller motor, and the feed motor and roller motor are driven by a motor driver as described, for e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/18H02P8/22B41J29/38
Inventor 吉久靖彦横山孝一郎远藤恒延
Owner SEIKO EPSON CORP