Image-forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYuichiro Inaba, Masaaki Takeuchi
Life of this patent
Estimating the term…
Abstract
A transfer device can make more stable contact with a belt, thus yielding preferable transfer performance. In an image-forming apparatus in which the transfer device has a sheet member, the sheet member includes a conductive sheet, and an electrical connection path section (power source connecting section) for supplying voltage to the conductive sheet from the primary transfer power source, and the power source connecting section is arranged outside an image formation enabling region where a toner image can be formed on a photosensitive drum, in a direction perpendicular to the direction of movement of the intermediate transfer belt.
Claims13
An image-forming apparatus, comprising:
- an image bearing member which bears a toner image;
- a movable belt;
- and
- a transfer device arranged to face the image bearing member via the belt, the transfer device being provided with a non-conductive sheet member, a conductive sheet member fixed onto the non-conductive sheet member, and an elastic member which presses the non-conductive sheet member towards the belt, wherein
- the conductive sheet member has a conductive section and an electrical connection path section for supplying voltage from a power source to the conductive section,
- the connection path section is arranged outside an image formation enabling range, where a toner image can be formed on the image bearing member, in a belt width direction perpendicular to a direction of movement of the belt and parallel to an axis of rotation of the image bearing member, and
- in a pressing direction of the elastic member, the elastic member, the non-conductive sheet member, and the conductive section are arranged in a line.
An image-forming apparatus, comprising:
- an image bearing member which bears a toner image;
- a movable belt;
- and
- a transfer device arranged to face the image bearing member via the belt, the transfer device including a conductive brush member, a planar supporting member which supports the brush member, an electrical connection path section for supplying a transfer voltage for image formation to the brush member from a power source, and an elastic member which presses the supporting member towards the belt, wherein
- the connection path section is arranged outside an image formation enabling range where a toner image can be formed on the image bearing member, in a belt width direction perpendicular to a direction of movement of the belt and parallel to an axis of rotation of the image bearing member, and
- in a pressing direction of the elastic member, the elastic member, the supporting member, and the brush member are arranged in a line.
Dependencies are inferred from the claim text.