Patent ID: 9205686
Filing Date: 2015-12-08
Classification: B41J,B65H

Abstract:
1. A printer, comprising: a first case and a second case that configure a housing; a paper containing portion that is formed in the first case and is configured to contain a paper roll around which a printing paper is wound; a paper holder that is provided in the paper containing portion and is configured to hold the paper roll; a pair of supporting members that are provided in the paper holder and are configured to hold both ends of the paper roll, with each of the supporting members holding one of the ends; a contacting portion that is provided in the paper holder and is thicker in the axial direction of the paper roll than are the supporting members; and a first projection that a rib that is formed on a first inner wall surface facing the first projection, in the direction that is orthogonal to the direction in which the printing paper is pulled off of the paper roll in the paper containing portion, the rib having a specified width and a specified height and projecting from the first inner wall surface toward the contacting portion by a specified distance, a second projection that is formed on the rib and projects from the rib, wherein the second projection and the supporting member that is located on the side of the paper holder toward the first inner wall surface are configured to be able to come into contact with one another, and a first gap between the first projection and the contacting portion is configured to be narrower than a second gap between the second projection and the supporting member that is located on the side of the paper holder toward the first inner wall surface.