Fixing device and image forming apparatus

A fixing device comprising:

• an endless belt rotatable in a given direction of rotation;
• a heater disposed opposite and heating the endless belt;
• a pressing rotary body rotatable while contacting the endless belt;
• a nip formation pad disposed opposite an inner circumferential surface of the endless belt and pressing the endless belt against the pressing rotary body to form a fixing nip between the endless belt and the pressing rotary body, the fixing nip through which a recording medium is conveyed;
• a friction reducer sandwiched between the endless belt and the nip formation pad, the friction reducer over which the endless belt slides,
• the friction reducer including:
• a body;
• and
• at least one tab projecting from the body in a direction opposite a recording medium conveyance direction;
• and
• a friction reducer fastener attached to the tab of the friction reducer and placed inside the nip formation pad to mount the friction reducer on the nip formation pad.