Heating device and image forming apparatus

An image forming apparatus comprising:

• a developing section that attaches a toner to an electrostatic latent image;
• a transfer section that transfers, onto a print medium, the toner attached to the electrostatic latent image;
• and
• a heating device including
• a heating source,
• a belt member that is heated by the heating source and moves in a predetermined moving direction,
• a pressure-applying member that is brought into contact with the heating source with the belt member being disposed between the pressure-applying member and the heating source, and thereby provides a nip,
• a plate member that is disposed between the heating source and the belt member, and includes an inclined part in an upstream region, a downstream region, or both, the upstream region being disposed upstream of the nip in the predetermined moving direction of the belt member, the downstream region being disposed downstream of the nip in the predetermined moving direction of the belt member, the inclined part being inclined to be away from the nip, and
• a lubricant provided between the belt member and the plate member,
• the heating device fixing, to the print medium, the toner transferred onto the print medium.