Roll paper printer
AssigneeSeiko Epson Corporation
InventorsTetsugo Ishida, Nobuhiro Inoue
Life of this patent
Estimating the term…
Abstract
A roll paper printer includes an accommodation section that is configured to accommodate roll paper wound with paper, a platen that pulls out the paper from the roll paper, and transports the paper in a transport direction, a cover that opens and closes the accommodation section, a sensor that is mounted on the accommodation section, is configured to come into contact with an outer circumference of the roll paper at a contacting point, and is configured to detect a remaining amount of the roll paper, and a contact member that is configured to be disposed at a position facing a position of the contacting point with the roll paper interposed therebetween, is configured to come into contact with the outer circumference of the roll paper and rotate, and is configured to move.
Claims7
A roll paper printer comprising:
- an accommodation section that is configured to accommodate roll paper;
- a platen that is configured to pull out paper from the roll paper, and is configured to transport the paper in a transport direction;
- a cover that is configured to open and close the accommodation section;
- a sensor that is mounted on the accommodation section, is configured to come into contact with an outer circumference of the roll paper, rotates about a sensor hinge according to a remaining amount of the roll paper, and is configured to detect the remaining amount of the roll paper based on a rotational position of the sensor;
- and
- a contact member that is configured to be disposed at a position facing a contacting point of the sensor with the roll paper interposed therebetween, and is configured to come into contact with the outer circumference of the roll paper and move,
- wherein the accommodation section includes a plurality of portions including a first portion and a recessed portion adjacent the first portion and that is lower than the first portion,
- wherein when a full roll paper is accommodated in the accommodation section, the contacting point and the sensor are positioned in the first portion at a same position as a surface of the first portion of the accommodation section, and
- wherein when the roll paper is accommodated in the recessed portion and is not accommodated in any other or the plurality of portions of the accommodation section, the sensor is raised to a highest level from the surface of the first portion and the sensor no longer contacts the roll paper.
Dependencies are inferred from the claim text.