Developing apparatus and developer collecting method
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorsTakashi Hatakeyama, Hiroshi Murata
Life of this patent
Estimating the term…
Abstract
There are provided a developing apparatus and a developer collecting method, in which a collection unit to collect a developer discharged from a developing unit by overflow is disposed not to largely protrude to the outside of an installation space of the developing unit. There are included a developing unit 12 including a discharge port 30 to discharge a developer by overflow, and a developer collecting unit 34 that is disposed so that at least a part overlaps with the developing unit 12 when the developing unit 12 is viewed from above, and contains the developer discharged from the discharge port 30 of the developing unit 12.
Claims18
A developing apparatus, comprising:
- a developing unit including a discharge port to discharge a developer by overflow, the developing unit comprising a developing roller, the developing unit comprising a stepped part having a side wall part and a bottom part on an outer peripheral part of an upper part of a housing of the developing unit, the side wall part extending along a longitudinal direction of the developing roller and being positioned between the developing roller and a developer collecting unit, the discharge port being formed and provided in a part of the side wall part;
- and
- the developer collecting unit that is disposed so that at least a part of the developer collecting unit is mounted on an upper surface of the bottom part of the stepped part when the developing unit is viewed from above, and contains the developer discharged from the discharge port of the developing unit.
A developing apparatus, comprising:
- developer supply means for supplying a developer to image bearing means, the developer supply means comprising a developing roller, the developer supply means comprising a stepped part having a side wall part and a bottom part on an outer peripheral part of an upper part of a housing of the developer supply means, the side wall part extending along a longitudinal direction of the developing roller and being positioned between the developing roller and a developer collection means;
- discharge means formed and provided in the side wall part of developer supply means and for discharging the developer from the developer supply means by overflow;
- and
- the developer collection means disposed so that at least a part of the developer collection means is mounted on an upper surface of the bottom part of the stepped part of developer supply means when the developer supply means is viewed from above, and for containing the developer discharged by the discharge means.
Dependencies are inferred from the claim text.