Fixing device

摘要

A fixing device includes a tubular fusing film, a heater, a nip member, a backup member, a backup member, first supporting member, and a second supporting member. The heater may be disposed inside the tubular shape of the fusing film. The nip member may be disposed so as to be in sliding contact with the inner surface of the fusing film and heated by the heater. The backup member may form a nip portion between the backup member and the fusing film with the fusing film between the backup member and the nip member. The first supporting member may be configured to integrally support the heater and the nip member. The second supporting member may be configured to movably support the first supporting member so that the nip member moves relative to the backup member.

主权项

1. A fixing device comprising:
an endless film including an inner peripheral surface and an outer peripheral surface; a heater extending inside the endless film; a reflector configured to reflect radiant heat from the heater; a nip plate contactable with the inner peripheral surface of the endless film; a stay configured to support the nip plate; a roller, the roller and the nip plate being configured to nip the endless film therebetween to form a nip portion; a first supporting member configured to:
support the heater and the nip plate with a first fixed distance, andsupport the reflector and the stay with a second fixed distance; a second supporting member supporting the roller, the second supporting member including a groove configured to guide the first supporting member towards and away from the roller, wherein the groove is separate from the stay and the reflector; and a spring configured to urge the first supporting member towards the roller.