| 摘要 |
PROBLEM TO BE SOLVED: To suppress, in a fixing device that passes a sheet P through a nip part formed by a fixing rotating body 34 and a pressure roller 35 to fuse and fix an unfixed toner image on the sheet P, temperature rise and temperature unevenness of a non-paper feed area of the fixing rotating body 34.SOLUTION: When blowing an air from an air blowing fan 41 to a fixing rotating body 34 to cool a non-paper feed area, a fixing device performs an entire cooling mode to cool by blowing an air to the entire non-paper feed area, and a local cooling mode to cool by blowing an air to a local area including a high-temperature portion, alternately in every predetermined time. |
