Patent ID: 8687997
Filing Date: 2014-04-01
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an apparatus main body having an inner side and an outer side; an image forming portion that forms a toner image on a recording medium; a fixing device that is disposed on a downstream side of the image forming portion with respect to a conveying direction in which a recording medium is conveyed, that has fixing roller heated by a heating member and a pressing roller brought into press-contact with the fixing roller to form a fixing nip, and that passes it recording medium through the fixing nip to fix unfixed toner borne on the recording medium; and a fan that, when a recording medium having a width smaller than a width of a maximum-width recording medium that can be passed through the fixing nip is passing through the fixing nip, cools a part of an outer peripheral surface of a non-paper passing region on one of the fixing roller and the pressing roller, said one of the fixing and the pressing rollers being disposed in proximity to the apparatus main body outer side and the outer peripheral surface part of said one of the rollers facing the apparatus main body outer side, wherein on a downstream side of the fixing nip with respect to the conveying direction, a conveying guide is provided that supports a surface of a recording medium that has passed through the fixing nip, the surface of the passed-through recording medium facing the apparatus main body inner side, the conveying guide guiding the recording medium to outside of the apparatus, air flow from the fan passes along the outer peripheral surface part of said one of the rollers to be led to a surface of the conveying guide, and an air passage having a first air passing opening positioned on a side of said one of the rollers and a second air passing opening positioned on a side of the conveying guide is formed between said one of the rollers and the conveying guide.