Belt unit and image forming apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorHirotaka Mori
Life of this patent
Estimating the term…
Abstract
A belt unit includes: a pair of roller members spaced from and opposing each other in a first direction, each of the roller members having an axis extending in a second direction; an endless belt extending around the roller members; a plurality of transfer members arranged along the first direction between the roller members and spaced from one another so as to be enclosed by the endless belt; and a frame that rotatably supports the roller members and the transfer members. The frame includes: a pair of resin side frames spaced from each other in the second direction, each of the resin side frames extending in the first direction; and a resin bridging beam extending between the side frames.
Claims15
A belt unit comprising:
- a pair of roller members spaced from and opposing each other in a first direction, each of the roller members having an axis extending in a second direction;
- an endless belt extending around the roller members;
- a plurality of transfer members arranged along the first direction between the roller members and spaced from one another, the transfer members being enclosed by the endless belt;
- and
- a frame that rotatably supports the roller members and the transfer members,
- wherein the frame comprises:
- a pair of resin side frames spaced from each other in the second direction, each of the resin side frames extending in the first direction;
- and
- a resin bridging beam extending between the side frames.
An image forming apparatus comprising:
- an image forming unit configured to form an image;
- and
- a belt unit, wherein the belt unit comprising:
- a pair of roller members spaced from and opposing each other in a first direction, each of the roller members having an axis extending in a second direction;
- an endless belt extending around the roller members;
- a plurality of transfer members arranged along the first direction between the roller members and spaced from one another so as to be enclosed by the endless belt;
- and
- a frame that rotatably supports the roller members and the transfer members,
- wherein the frame comprises:
- a pair of resin side frames spaced from each other in the second direction, each of the resin side frames extending in the first direction;
- and
- a resin bridging beam extending between the side frames and integrally formed with the side frames.
Dependencies are inferred from the claim text.