Rossi, Kimms & McDowell LLP
Process cartridge having toner receiving portion
A process cartridge includes a photosensitive member and a developing unit. The developing unit includes a frame to store toner, a developing roller to carry the toner, a side seal to contact an end portion of the developing roller and prevent the toner from leaking out, and a sealing sheet to contact a center portion of the developing roller and prevent the toner from leaking out. A toner receiving portion of the frame includes an opening facing the developing roller and is disposed on an upstream side of the side seal and a downstream side of a contact portion where the developing roller contacts the photosensitive member, and moreover is disposed at a position overlapping with the side seal. The developing unit includes a blocking member to block at least a part of the opening, and the blocking member is disposed between the opening and the developing roller.
CANON KABUSHIKI KAISHA
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inventional inventional inventional inventional additional
Masakazu Noriyuki Makoto Teruhiko Tomonori
Tatsumi Komatsu Hayashida Sasaki Mori