A sealing member which is compressed by a contactless temperature sensor and a cover member of a fixing unit is provided between the sensor and the cover member. An opening portion for temperature detection is shut off from a space around the fixing unit by the sealing member, thereby preventing the air from flowing from the opening portion into the fixing unit.

 
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< Image forming apparatus for designating sheet post-processing functions

> Client computer having software including a plurality of functions, server computer, system including both, control method of them, record medium storing program readably by computer for implementing control method

> Sheet stacking apparatus, sheet processing apparatus and image forming apparatus
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