Patent ID: 9665045
Date: 2017-05-30
CPC Classifications: G03G

Claim:
1. A fixing device comprising: a light source; a contact member that transmits light from the light source and includes a contact portion that contacts with an image forming material on a medium while rotating, the image forming material on the medium being heated by light in the contact portion; a facing member that comes into contact with the contact member to form a contact portion; and an incidence unit that causes the light from the light source to be incident on the contact member so that a second image forming material, attached to the contact member by a first image forming material attached to the contact member shielding at least a part of the light from the light source, shields only a part of the light when the first image forming material is located at the contact portion, or does not shield any of the light when the first image forming material is located at the contact portion, wherein the incidence unit is configured to cause the light from the light source to be incident on a substantially center of the contact portion in the radial direction of the contact member, and wherein the incidence unit causes the light from the light source to be incident on the contact member so that the second image forming material does not shield any of the light when the first image forming material reaches the contact portion.