MEDIUM CONVEYING APPARATUS FOR DETERMINING CONVEYANCE ABNORMALITY USING DEGREE OF SLIP OF MEDIUM
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United States of America Patent
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Issued Date -
Aug 19, 2021
app pub date -
Jan 14, 2021
filing date -
Feb 19, 2020
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Abstract
A medium conveying apparatus includes a processor to determine that a conveyance abnormality of a medium has occurred when a first medium sensor does not detect the medium when a motor is driven by a first predetermined amount after starting feeding of the medium, or when a second medium sensor does not detect the medium when the motor is driven by a second predetermined amount after the first medium sensor detects the medium, and calculate a degree of a slip occurred between the medium and a feed roller from when a front end of the medium passes through a position of the first medium sensor until the front end of the medium passes through a position of the second medium sensor. The processor changes the first predetermined amount or the second predetermined amount based on the degree of the slip of a medium fed in the past.
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