发明名称 Motor control apparatus with controlled input current
摘要 A motor control apparatus which is capable of controlling driving currents for stepping motors with efficiency. A feedback stepping motor drives sheet feed rollers located most upstream on a sheet conveying path out of a plurality of rollers. A normal stepping motor drives sheet feed rollers located downstream on the sheet conveying path out of the plurality of rollers. A maximum current value required by the feedback stepping motor when a sheet is conveyed is detected. A driving current value for the normal stepping motor is set to a value according to the maximum current value before the sheet enters the downstream sheet feed rollers after passing the upstream sheet feed rollers.
申请公布号 US7547016(B2) 申请公布日期 2009.06.16
申请号 US20050228167 申请日期 2005.09.16
申请人 CANON KABUSHIKI KAISHA 发明人 MIZUNO MANABU
分类号 B65H5/00 主分类号 B65H5/00
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