Patent ID: 11932509
Assignee: BROTHER KOGYO KABUSHIKI KAISHA
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. A conveyer comprising:
a support configured to rotate in a state that the support supports a roll body in which a roll sheet is wound;
a conveyance roller configured to convey the sheet pulled from the roll body in a conveying orientation;
a guide positioned upstream in the conveying orientation of the conveyance roller, configured to make contact with the sheet pulled from the roll body, and configured to move in a crossing direction crossing an axis of the support and an axis of the conveyance roller;
an urging member configured to urge the guide in an urging direction including a component in the crossing direction so as to apply a tension to the sheet making contact with the guide;
a sensor configured to detect a position in the crossing direction of the guide; and
a controller configured to control rotation of the support and rotation of the conveyance roller,
wherein the controller is configured to execute:
determination of a target position in the crossing direction of the guide in accordance with a diameter of the roll body, and determination of a permissible position in accordance with the determined target position;
controlling of a rotation amount of the support, a rotation amount of the conveyance roller, or both of the rotation amount of the support and the rotation amount of the conveyance roller such that the position in the crossing direction of the guide becomes to be the determined target position;
determination as to whether or not the position in the crossing direction of the guide detected by the sensor exceeds the permissible position;
performing of a notification of a conveying error of the sheet in accordance with determination by the controller that the position in the crossing direction of the guide exceeds the permissible position; and
determination of the permissible position such that a distance allowing the guide to move in a case that the controller controls the conveyance roller to rotate such that rotation of the conveyance roller is accelerated or decelerated is longer than a distance allowing the guide to move in a case that the controller controls the conveyance roller to rotate the conveyance roller in a constant speed.