Developing device and image forming apparatus using the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJai Il Choi, Chan Su Park
Life of this patent
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Abstract
Disclosed herein is a developing device. The developing device includes a housing having a toner containing unit and a developing unit, a partition member, having a toner supply window, coupled to the housing to partition the toner containing unit and the developing unit, a barrier film attached to the partition member to close the toner supply window, the barrier film having one end exposed out of the housing through a discharge port provided at a side wall of the housing, and a sheet member to guide and discharge the barrier film out of the housing.
Claims22
A developing device, comprising:
- a housing including a toner containing unit to contain toner, a developing unit having a developing roller and a photosensitive drum disposed therein, the developing roller applying toner to the photosensitive drum, and a discharge port provided at a side wall of the housing;
- a partition member, having a toner supply window defined therethrough, coupled to the housing to partition the toner containing unit and the developing unit;
- a barrier film attached to the partition member to close the toner supply window, the barrier film having one end exposed out of the housing through the discharge port;
- and
- a sheet member attached to at least one of the housing and the partition member and disposed to cover a portion of the barrier film and guide the barrier film as the barrier film is discharged out of the discharge port.
An electrophotographic image forming apparatus, comprising:
- a developing device, comprising:
- a housing including a toner containing unit to contain toner, a developing unit having a developing roller and a photosensitive drum disposed therein, the developing roller applying toner to the photosensitive drum, and a discharge port provided at a side wall of the housing,
- a partition member, having a toner supply window defined therethrough, coupled to the housing to partition the toner containing unit and the developing unit,
- a barrier film attached to the partition member to close the toner supply window, the barrier film having one end exposed out of the housing through the discharge port, and
- a sheet member attached to at least one of the housing and the partition member and disposed to cover a portion of the barrier film and guide the barrier film as the barrier film is discharged out of the discharge port;
- an optical scanning device to scan light modulated according to an image signal to the photosensitive drum;
- a transfer device to transfer a toner image formed on the photosensitive drum to a recording medium;
- and
- a fusing device to fuse the toner image to the recording medium using heat and pressure.
Dependencies are inferred from the claim text.