An image forming apparatus includes a fixing roller to fix an image by heating a sheet on which the image is transferred and to convey the sheet. In a case in which a first plain paper of which a sheet length in a sheet conveyance direction is equal to or more than a predetermined length is conveyed, the fixing roller conveys the first plain paper at a first speed. In a case in which a second plain paper of which the sheet length is less than the predetermined length is conveyed, the fixing roller conveys the second plain paper at a second speed less than the first speed. In a case in which an envelope of which the sheet length is less than the predetermined length is conveyed, the fixing roller conveys the second envelope at the first speed.

A conveying device includes a receptacle, an imager, and circuitry. The receptacle receives a medium. The imager captures an image of the medium. The circuitry acquires image information of the medium captured by the imager, and performs control based on at least one of a condition or a type of the medium. The at least one of the condition or the type is recognized based on the acquired image information.

An image forming apparatus includes a paper feed unit that includes a paper feed contact portion which comes into contact with the recording material stored in a storage unit, and that feeds the recording material in contact with the paper feed contact portion. The image forming apparatus further includes a separation unit provided downstream of the paper feed unit in a conveyance direction of the recording material, and that includes a separation contact portion which comes into contact with the fed recording material. In a case where information based on a result of detecting the recording material being conveyed indicates that a plurality of recording materials are simultaneously positioned in a notification section, An information processing apparatus gives notification such that a display apparatus displays information regarding that the plurality of recording materials are present in the notification section.