Patent ID: 7434511

Claim:
An image recording apparatus for recording an image on a sheet-shaped image recording material mounted thereon, comprising: a mounting member having a predetermined mounting surface on which the image recording material is mounted; a first positioning member fixed on the mounting surface of the mounting member; a second positioning member fixed on the mounting surface of the mounting member and located at a first pitch from the first positioning member with respect to a predetermined direction; a third positioning member fixed on the mounting surface of the mounting member and located at a second pitch from the first positioning member with respect to the predetermined direction, so that the third positioning member is further away from the first positioning member than the second positioning member, the second pitch being greater than the first pitch; a first notch forming section for forming, along one end of the image recording material, either a positioning notch to be fitted with the first positioning member or a non-contacting notch for preventing the first positioning member from coming in contact with the image recording material, the non-contacting notch being deeper than the positioning notch; a second notch forming section located at the first pitch from the first notch forming section, the second notch forming section for forming, along one end of the image recording material, either a positioning notch to be fitted with the second positioning member or a non-contacting notch for preventing the second positioning member from coming in contact with the image recording material, the non-contacting notch being deeper than the positioning notch; a third notch forming section located at the second pitch from the first notch forming section, the third notch forming section for forming, along one end of the image recording material, either a positioning notch to be fitted with the third positioning member or a non-contacting notch for preventing the third positioning member from coming in contact with the image recording material, the non-contacting notch being deeper than the positioning notch; and a mounting mechanism for mounting the image recording material, in which the notches are formed by any of the first, second, and third notch forming sections, on the mounting surface of the mounting member by using any two of the first, second, and third positioning members as positioning references.