Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorYutaka KAKEHI
Life of this patent
Estimating the term…
Abstract
An image forming apparatus includes a pushing member pushing an image carrying belt from an inner circumferential side and a guide member guiding a recording medium toward a transfer nip portion formed with an inner-side roller and an outer-side roller. The guide member includes a first and second guides and the second guide is provided such that a tip end on the side of the transfer nip portion is positioned further away from the image carrying belt than a reference line that connects a point at which a line connecting the rotational center of the inner-side roller and the rotational center of the outer-side roller intersects with the image carrying belt, and a furthest downstream contact point of a contact area in which the pushing member contacts with the image carrying belt.
Claims10
An image forming apparatus comprising:
- an endless image carrying belt rotating while carrying a toner image on a surface thereof;
- an inner-side roller provided on the inner circumferential side of the image carrying belt and coming into contact with the image carrying belt;
- a stretching member provided upstream, in a rotating direction of the image carrying belt, of the inner-side roller and stretching the image carrying belt from the inner circumferential side;
- a pushing member provided upstream the inner-side roller and downstream the stretching member in the rotating direction of the image carrying belt, and coming into contact with and pushing the image carrying belt from the inner circumferential side such that an stretching surface of the image carrying belt which is formed between the inner-side roller and the stretching member is jutted to the outer side;
- an outer-side roller provided to face the inner-side roller with the image carrying belt nipped therebetween, forming a transfer nip portion with the inner-side roller, and transferring a toner image onto a recording medium from the image carrying belt while the recording medium is nipped and conveyed at the transfer nip portion;
- and
- a guide member guiding the recording medium toward the transfer nip portion, the guide member including:
- a first guide provided upstream the transfer nip portion in the rotating direction of the image carrying belt and on the outer side of the image carrying belt;
- and
- a second guide provided between the first guide and the image carrying belt and of which a tip end on the side of the transfer nip portion is positioned further away from the image carrying belt than from a reference line that connects a point at which a line connecting the rotational center of the inner-side roller and the rotational center of the outer-side roller intersects with the image carrying belt, and a furthest downstream contact point of a contact area in which the pushing member contacts with the image carrying belt.
Dependencies are inferred from the claim text.