Image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYUSUKE MINATO, MANATO KOBAYASHI, IZURU TANAKA
Life of this patent
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Abstract
An image forming apparatus comprising: a photosensitive member, an intermediary transfer belt, a transfer member, an electrode member provided on an inner peripheral surface side of the intermediary transfer belt, a power source for applying a voltage of the same polarity as a predetermined polarity to the electrode member, and a supporting member for supporting the electrode member. The electrode member is supported in non-contact with the intermediary transfer belt when the electrode member is positioned in an operating position, and a separation amount between the electrode member and the intermediary transfer belt when the electrode member is positioned in the operating position is 1.5 mm or less.
Claims8
An image forming apparatus comprising:
- a photosensitive member capable of being electrically charged to a predetermined polarity and configured to bear a toner image;
- an intermediary transfer belt configured to convey the toner image transferred from the photosensitive member and capable of being circulated and moved;
- a transfer member configured to transfer the toner image from the photosensitive member onto the intermediary transfer belt;
- an electrode member provided on a side downstream of the transfer member with respect to a movement direction of the intermediary transfer belt and on an inner peripheral surface side of the intermediary transfer belt;
- a power source configured to apply a voltage of the same polarity as the predetermined polarity to the electrode member;
- and
- a supporting member configured to support the electrode member,
- wherein the electrode member is supported in non-contact with the intermediary transfer belt when the electrode member is positioned in an operating position, and a separation amount between the electrode member and the intermediary transfer belt when the electrode member is positioned in the operating position is 1.5 mm or less.
An image forming apparatus comprising:
- a photosensitive member capable of being electrically charged to a predetermined polarity and configured to bear a toner image;
- an intermediary transfer belt configured to convey the toner image transferred from the photosensitive member and capable of being circulated and moved;
- a transfer member configured to transfer the toner image from the photosensitive member onto the intermediary transfer belt;
- an electrode member provided on a side downstream of the transfer member with respect to a movement direction of the intermediary transfer belt and on an inner peripheral surface side of the intermediary transfer belt;
- a power source configured to apply a voltage of the same polarity as the predetermined polarity to the electrode member;
- and
- a supporting member configured to support the electrode member,
- wherein the electrode member is supported in non-contact with the intermediary transfer belt when the electrode member is positioned in an operating position, and
- wherein the supporting portion includes a projected portion projecting toward the inner peripheral surface side of the intermediary transfer belt relative to the electrode member, and the projected portion is formed of a non-electroconductive material for regulating a separation distance of the electrode member from the intermediary transfer belt in contact with the inner peripheral surface of the intermediary transfer belt.
Dependencies are inferred from the claim text.