| 主权项 |
1. A fixing device comprising:
an endless belt; a nip member disposed inside the endless belt and elongated in a longitudinal direction; and a backup member sandwiching the endless belt against the nip member to form a nip portion at which the backup member and the endless belt are in contact with each other and are configured to convey a recording sheet in a conveying direction perpendicular to the longitudinal direction, wherein a downstream end of the nip portion in the conveying direction is arced with a longitudinal center portion thereof further upstream than longitudinal end portions thereof, and wherein the nip member includes a first portion sandwiching the endless belt against the backup member, and a second portion positioned downstream of the first portion in the conveying direction and bent in a direction away from the backup member, the second portion being arced with a longitudinal center portion thereof further upstream in the conveying direction than longitudinal end portions thereof. |
