Image forming apparatus

An image forming apparatus comprising:

• a conveyance unit configured to convey a sheet in a sheet conveyance direction while nipping the sheet;
• a transfer unit arranged downstream of the conveyance unit in the sheet conveyance direction, configured to convey the sheet while nipping the sheet, and configured to transfer a toner image onto the sheet;
• a fixing unit arranged downstream of the transfer unit in the sheet conveyance direction, configured to convey the sheet while nipping the sheet, and configured to fix the toner image transferred by the transfer unit on the sheet;
• a first detection unit arranged between the transfer unit and the fixing unit in the sheet conveyance direction and configured to detect a deflection amount of the sheet nipped by the transfer unit and the fixing unit in multiple stages;
• and
• a control unit configured to control a conveyance speed of the sheet by the fixing unit based on a detection result of the first detection unit,
• wherein the control unit is configured to perform a first mode that performs, during a time when a single first sheet is being nipped by the conveyance unit, the transfer unit, and the fixing unit, a first process of controlling the conveyance speed of the first sheet by the fixing unit such that the deflection amount becomes a first deflection amount, and a second process, performed after the first process, of controlling the conveyance speed of the first sheet by the fixing unit such that the deflection amount becomes a second deflection amount smaller than the first deflection amount.