Patent ID: 11964505
Assignee: TOSHIBA TEC KABUSHIKI KAISHA
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A thermal printer, comprising:
a shaft-shaped member that sets a path of an ink ribbon from a supplying shaft to a winding shaft and is provided at least on a downstream side between an upstream side and the downstream side in a conveying direction at a position where a thermal head and a platen face each other with a recording medium interposed therebetween, the ink ribbon being hung around the shaft-shaped member;
a movable support portion that movably supports at least one end portion of the shaft-shaped member in a direction in which a tension of the ink ribbon varies;
paired strain detection components that are provided at both end portions of the shaft-shaped member, and an output thereof is varied according to a strain of the shaft-shaped member; and
a controller that controls movement of the shaft-shaped member in a direction in which a difference in output between the paired strain detection components decreases.