Development apparatus, process cartridge, and image forming apparatus

摘要

A development apparatus for an image forming apparatus includes;a first sealing member provided in the supporting portion and configured to seal a gap between a peripheral surface of the development roller and the frame member at one end side of the frame member in the axis direction to prevent the developer from leaking from the frame member; and a second sealing member made of a resin and configured to seal the through hole, and the first sealing member, the supporting portion, and the second sealing member are arranged in this order on the same plane perpendicular to the axis direction.

主权项

1. A development apparatus for an image forming apparatus, the development apparatus comprising:
a development roller configured to develop, using a developer, an electrostatic latent image formed on an image bearing body; a frame member accommodating the developer and having a through hole and a supporting portion at one end side of the frame member in an axis direction of the development roller; a supply roller attached to the frame member through the through hole and configured to supply the developer to the development roller; a first sealing member provided in the supporting portion and configured to seal a gap between a peripheral surface of the development roller and the frame member at one end side of the frame member in the axis direction to prevent the developer from leaking from the frame member; and a second sealing member made of a resin and configured to seal the through hole, wherein the first sealing member, the supporting portion, and the second sealing member are arranged in this order on the same plane perpendicular to the axis direction.