Medium feeding control method and medium feeding apparatus
AssigneeSeiko Epson Corporation
InventorToru HAYASHI
Life of this patent
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Abstract
A medium feeding apparatus includes a detection tension acquiring unit that acquires a detection tension which is a tension applied during an (n−1)-th feeding operation in a plurality of feeding operations in which the medium is fed, a corrected tension calculating unit that calculates a corrected tension obtained by correcting a target tension which is a target value of a tension to be applied during a n-th feeding operation based on the detection tension, and a driving controlling unit that controls a roll motor during the n-th feeding operation based on the corrected tension.
Claims7
A medium feeding control method of a medium feeding apparatus which includes a holding unit that holds a roll body around which a medium is wound, a feeding unit that pulls and feeds the medium from the roll body, and a rotation driving unit that rotates the roll body through the holding unit in a direction in which the medium is fed from the roll body, and a feeding driving unit that drives the feeding unit, and performs a feeding operation multiple times in which the medium is fed, the method comprising:
- acquiring a detection tension corresponding to a tension applied to the medium between the roll body and the feeding unit during an (n−1)-th or earlier feeding operation (n is an integer equal to or greater than 2) in a plurality of the feeding operations;
- calculating a corrected tension by correcting a target tension which is a target value of a tension to be applied during an n-th feeding operation on the basis of the detection tension;
- and
- controlling the feeding driving unit during the n-th feeding operation based on the corrected tension.
A medium feeding apparatus comprising:
- a holding unit that holds a roll body around which a medium is wound;
- a feeding unit that pulls and feeds the medium from the roll body;
- a rotation driving unit that rotates the roll body through the holding unit so that the medium is fed from the roll body;
- a feeding driving unit that drives the feeding unit;
- a detection tension acquiring unit that acquires a detection tension which is a tension applied to the medium between the roll body and the feeding unit during an (n−1)-th or earlier feeding operation (n is an integer equal to or greater than 2) in a plurality of feeding operations in which the medium is fed;
- a corrected tension calculating unit that calculates a corrected tension obtained by correcting a target tension which is a target value of a tension to be applied during the n-th feeding operation based on the detection tension;
- and
- a driving controlling unit that controls the feeding driving unit during the n-th feeding operation based on the corrected tension.
Dependencies are inferred from the claim text.