| 摘要 |
An image forming apparatus includes a main assembly; a first openable member openably and closably provided in the main assembly; a second openable member openably and closably provided in the main assembly; a fixing unit for fixing a toner image formed on a recording material, the fixing unit including a pressure applying mechanism for applying a pressure to a fixing nip of the fixing unit, wherein a operation force by an operator when at least one of the first openable member and the second openable member is opened by the operator applies to the pressure applying mechanism to release the pressure applied to the fixing nip; wherein the fixing unit is detachably mountable relative to the main assembly and includes a pressure switching member, engaged to the pressure applying mechanism, to receive the operation force when the first openable member is opened and to move the pressure applying mechanism, wherein an operation force when the second openable member is opened is also transmitted to the pressure switching member.
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