Roll sheet conveying apparatus and sheet conveying control method
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United States of America Patent
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May 10, 2016
Grant Date -
Aug 28, 2014
app pub date -
Feb 4, 2014
filing date -
Feb 22, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
There are provided a roll sheet conveying apparatus and a sheet conveying control method wherein it is possible to control motor driving for conveying a roll sheet at appropriate timing to keep constant the tension of the sheet to be conveyed without performing a special identifying operation. For this feature, a relationship between friction load torque on the roll sheet and the mass of the roll sheet is previously stored in a storing unit, whereby the moment of inertia of the roll sheet can be detected at appropriate timing during printing. As a result, the optimum tension of the sheet to be conveyed can be maintained by appropriately adjusting the driving control of a sheet feeding motor and a conveying motor without performing a special identifying operation.
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