Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorYutaka Kakehi
Life of this patent
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Abstract
An image forming apparatus includes a movable endless belt, an image forming unit, a plurality of rollers including a first roller and a second roller, and an urging member. The urging member is provided on an inner peripheral surface side at a position which is adjacent to and upstream of the first roller and which is downstream of the second roller with respect to a movement direction of the belt. The urging member is supported at an upstream end portion thereof with respect to the movement direction of the belt and includes a first urging portion and a second urging portion at two different positions with respect to the movement direction of the belt. The first urging portion and the second urging portion urge the belt along a widthwise direction crossing the movement direction of the belt.
Claims14
An image forming apparatus comprising:
- a movable endless belt;
- an image forming unit configured to form a toner image on said belt;
- a plurality of rollers configured to stretch said belt at an inner peripheral surface side of said belt, wherein said rollers include a first roller configured to form a transfer portion where the toner image is transferred from said belt onto a recording material and a second roller provided at a position at an upstream side of said first roller with respect to a movement direction of said belt;
- and
- an urging member configured to urge said belt toward an outer peripheral surface side of said belt in contact with an inner peripheral surface of said belt along a widthwise direction crossing the movement direction of said belt, wherein said urging member is provided at the inner peripheral surface side at a position which is adjacent to and upstream of said first roller and which is downstream of said second roller with respect to the movement direction of said belt, and wherein said urging member is supported at an upstream end portion thereof with respect to the movement direction of said belt and includes a first urging portion and a second urging portion at two different positions with respect to the movement direction of said belt, said first urging portion and said second urging portion simultaneously urging said belt at the two different positions with respect to the movement direction of said belt.
An image forming apparatus comprising:
- a movable endless belt;
- an image forming unit configured to form a toner image on said belt;
- a plurality of rollers configured to stretch said belt at an inner peripheral surface side of said belt, wherein said rollers include a first roller configured to form a transfer portion where the toner image is transferred from said belt onto a recording material and a second roller provided at a position at an upstream side of said first roller with respect to a movement direction of said belt;
- and
- an urging member configured to urge said belt toward an outer peripheral surface side of said belt in contact with an inner peripheral surface of said belt along a widthwise direction crossing the movement direction of said belt, wherein said urging member is provided at the inner peripheral surface side at a position which is adjacent to and upstream of said first roller and which is downstream of said second roller with respect to the movement direction of said belt, and wherein said urging member is supported at an upstream end portion thereof with respect to the movement direction of said belt and includes a plurality of urging portions at a plurality of different positions with respect to the movement direction of said belt, said urging portions simultaneously urging said belt at the plurality of different positions with respect to the movement direction of said belt.
Dependencies are inferred from the claim text.