| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing device capable of stably fixing an image without causing a crease on an envelope by switching an angle of an entrance guide interlocked with automatic switching operation of a fixing pressure without requiring manual operation by a user.SOLUTION: A fixing device 22 includes: a heating roller (heating member)24 and a pressure roller (pressure member) 25 which rotate in abutment with each other; an entrance guide 30 arranged upstream side in a sheet conveying direction of a fixing nip N formed by these heating roller 24 and pressure roller 25; and a fixing pressure switching mechanism for switching a fixing mode between a high pressure mode where a fixing pressure is set high and a low pressure mode where the fixing pressure is set low. Further, the fixing device 30 includes an entrance guide switching mechanism that switches an angle of the entrance guide 30 interlocked with the fixing pressure switching operation by the fixing pressure switching mechanism. |
