Patent ID: 9011028
Filing Date: 2015-04-21
Classification: B41J

Abstract:
1. A tape cassette, comprising: a cassette case that has a top face, a bottom face, a front face, a rear face, and a pair of side faces that have lengths in a front-rear direction that are shorter than a length of the front face in a left-right direction, the pair of side faces including a left side face and a right side face that are opposed to each other, a first line being a virtual straight line on a same plane with the bottom face and being an extension of a right edge of the bottom face, a second line being another virtual straight line on the same plane with the bottom face and being an extension of a rear edge of the bottom face, a rearmost end of a right edge of the cassette case being located on a front side of an intersection between the first line and the second line, and a rightmost end of a rear edge of the cassette case being located on a left side of the intersection; a tape roll including a tape provided in the cassette case; an ink ribbon roll including an ink ribbon provided in the cassette case; a tape feed roller which is provided on a right side of the left side face and which is provided in a first corner portion; a first recessed portion that is formed in the left side face, the first recessed portion being provided in the first corner portion, and the first recessed portion being recessed toward the right side face of the cassette case and extending from the top face to the bottom face; and a second recessed portion that is disposed in a diagonally opposite position in the cassette case from the first corner portion and that is formed by a connecting wall that connects the rearmost end of the right edge of the cassette case and the rightmost end of the rear edge of the cassette case, the connecting wall extending from the top face to the bottom face and being at least partly recessed toward the left side face of the cassette case with respect to a first plane which is a virtual plane connecting the rearmost end of the right edge of the cassette case and the rightmost end of the rear edge of the cassette case, the first plane being orthogonal to the same plane with the bottom face.