Sheet separating device, fixing device, and image forming apparatus

A sheet separating device that is attached to a fixing device,

• the fixing device including:
• a fixing member that is a rotary body having a heating unit;
• and
• a pressing member that is pressed against and is brought into contact with the fixing member, wherein
• the fixing device conveys a sheet material that carries unfixed toner thereon through a nip section formed by the fixing member and the pressing member so as to fix the unfixed toner image to the sheet material, and
• the sheet separating device separates the sheet material from the fixing member,
• the sheet separating device comprising:
• at least one nozzle member that discharges compressed gas from the direction of a nip outlet toward the nip section along the fixing member, wherein
• the nozzle member is rotatably supported by a shaft member that is provided parallel to the fixing member and includes a gas flow passage through which compressed gas is supplied to the nozzle member.