Fixing device and image forming apparatus
AssigneeFuji Xerox Co., Ltd.
InventorJun Sawamura
Life of this patent
Estimating the term…
Abstract
A fixing device includes a solid or hollow cylindrical heating member that heats a recording medium and has recesses or projections provided at axial ends thereof, over the entire outer circumferences; ring-shaped heat insulating members to be fitted to the axial ends of the heating member, the ring-shaped heat insulating members having, in the inner circumferences thereof, projections or recesses that fit into or receive the recesses or projections provided on the heating member; and bearings that rotatably support the axial ends of the heating member via the heat insulating members.
Claims10
A fixing device comprising:
- a solid or hollow cylindrical heating member that heats a recording medium and has at least one recess or projection provided on at least one end of axial ends thereof, on the outer circumference;
- a ring-shaped heat insulating member to be fitted to the axial ends of the heating member, the ring-shaped heat insulating member having, an inner circumference which has an inner surface thereon, at least one projection or recess axially formed on the inner surface of the inner circumference to fit into or receive the at least one recess or projection provided on the heating member;
- and
- a bearing that is configured to rotatably support the at least one end of the axial ends of the heating member via the heat insulating member.
A fixing roller comprising:
- a solid or hollow cylindrical heating member that heats a recording medium and has at least one recess or projection provided on at least one end of axial ends thereof, on the outer circumference;
- a ring-shaped heat insulating member to be fitted to the at least one end of the axial ends of the heating member, the ring-shaped heat insulating member having, an inner circumference which has an inner surface thereon, at least one projection or recess axially formed on the inner surface of the inner circumference to fit into or receive the at least one recess or projection provided on the heating member;
- and
- a bearing that is configured to rotatably support at least one end of the axial ends of the heating member via the heat insulating member.
Dependencies are inferred from the claim text.