Image forming device having ventilator for allowing air to flow in space between fusing member and stay

An image forming device comprising:

• a heater configured to radiate radiant heat;
• a nip member configured to receive the radiant heat from the heater;
• a stay having an inner surface confronting the heater and an outer surface in opposition to the inner surface, the stay being configured to cover the heater and to support the nip member;
• a tubular flexible fusing member having end portions in an axial direction and an inner peripheral surface, the fusing member being configured to surround the heater, the nip member and the stay;
• a pair of frame members disposed at the end portions, one of the frame members being formed with an inlet opening, a remaining one of the frame members being formed with an outlet opening, the inlet opening and the outlet opening being in fluid communication with a space defined between the inner peripheral surface and the outer surface, each of the frame members having a guide portion, the inner peripheral surface being in sliding contact with each of the guide portions;
• a backup member configured to provide a nip region in cooperation with the fusing member upon nipping the fusing member between the backup member and the nip member;
• and
• a ventilator configured to allow air to flow in the space in the axial direction from the inlet opening to the outlet opening,
• wherein each of the inlet opening and the outlet opening is positioned between the guide portion and the stay when viewed in the axial direction.