Fixing device
AssigneeToshiba Tec Kabushiki Kaisha
InventorsOsamu Takagi, Satoshi Kinouchi
Life of this patent
Estimating the term…
Abstract
A fixing device comprising a heat roller which is adapted to be moved at the same velocity as the transferring speed of a paper with an image thereon and is adapted to be contacted with the paper to thereby enable the image on the paper to be thermally fixed, and an induction heating mechanism for performing an induction heating of the heat roller. The induction heating mechanism comprises a coil, and a supporter for supporting the coil, and the supporter has a frame structure which is partitioned into a plurality of sections which are partitioned in a direction perpendicular to the transferring direction of the paper.
Claims15
A fixing device comprising;
- an endless heating member which is adapted to be moved at the same velocity as a transferring speed of a sheet-like member with an image thereon and is adapted to be contacted with the sheet-like member to thereby enable the image on the sheet-like member to be thermally fixed;
- and
- an induction heating mechanism for performing an induction heating of the endless heating member,
- wherein the induction heating mechanism comprises a coil member, and a supporting member for supporting the coil member;
- and that the supporting member has a frame structure which is partitioned into a plurality of sections which are partitioned in a direction perpendicular to a transferring direction of the sheet-like member.
A fixing device comprising;
- an endless heating member which is adapted to be moved at the same velocity as a transferring speed of a sheet-like member with an image thereon and is adapted to be contacted with the sheet-like member to thereby enable the image on the sheet-like member to be thermally fixed;
- and
- an induction heating mechanism for performing an induction heating of the endless heating member,
- wherein the induction heating mechanism comprises a coil member, and a supporting member for supporting the coil member;
- and the supporting member is provided with at least one tapering portion or step portion which is formed along a direction perpendicular to a transferring direction of the sheet-like member, and that the coil member is provided with at least one tapering portion or step portion which is formed in conformity with the tapering portion or step portion formed on said supporting member.
A fixing device comprising;
- an endless heating member which is adapted to be moved at the same velocity as a transferring speed of a sheet-like member with an image thereon and is adapted to be contacted with the sheet-like member to thereby enable the image on the sheet-like member to be thermally fixed;
- and
- an induction heating mechanism for performing an induction heating of the endless heating member,
- wherein the induction heating mechanism comprises a coil member, and a supporting member for supporting the coil member;
- and the coil member is constituted by a plurality of litz wires which are designed to be altered in the manner of combination or of connection thereof, thereby enabling a plurality of different electric voltages to be applicable.
A fixing device comprising;
- an endless heating member which is adapted to be moved at the same velocity as a transferring speed of a sheet-like member with an image thereon and is adapted to be contacted with the sheet-like member to thereby enable the image on the sheet-like member to be thermally fixed;
- and
- an induction heating mechanism for performing an induction heating of the endless heating member,
- wherein the induction heating mechanism comprises a coil member, and a supporting member for supporting the coil member;
- and the coil member has a central space, whose width is varied along a direction perpendicular to a transferring direction of the sheet-like member.
Dependencies are inferred from the claim text.