Fixing device

Abstract

To prevent positional deviation or deformation of an engaging member of a heating unit caused by contact with a fixing frame, before the engaging member engages with a positioning part of a separation unit.SOLUTION: A protective member 335 is fixed to a stay 302 so as to cover part of the surroundings of an engaging member 342 excluding an engaging groove part 342a of the engaging member 342. The protective member 335 is arranged on the stay 302 to cover a lower part side of the engaging member 342, and protects the engaging member 342 so as to prevent the engaging member 342 from contacting part of a fixing frame during mounting of a heating unit 340. The protective member 335 has a projection part 3351 formed so as to overlap part of the engaging member 342 when seen from a width direction W, and even when the heating unit 340 deviates in the width direction W during mounting, the protective member 335 contacts the fixing frame to protect the engaging member 342.SELECTED DRAWING: Figure 6

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