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US 7,680,444 B2Granted
Toner cartridge and image forming apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorSatoshi Kaiho
Life of this patent
Estimating the term…
Abstract
A toner cartridge includes a toner container which contains toner, the toner container having at one end portion thereof a discharge port which discharges the toner, and a member which is attached to an outer peripheral surface of the one end portion. The member has a first part which is engaged with the one end portion, and a second part which has, at a position corresponding to the discharge port, a passage hole through which the toner discharged from the discharge port passes.
Claims17
A toner cartridge comprising:
- a cylindrical toner container configured to contain a toner, the toner container having at one end portion thereof a filling port through which the toner is fed;
- a cap configured to close the filling port;
- a toner discharge port formed in the toner container at another end portion thereof;
- a guide member attached to said another end portion of the toner container;
- a discharge plate formed on an outer periphery of the guide member integral therewith;
- a passage hole formed in the discharge plate, and opposing the discharge port when the guide member is attached to the toner container;
- a shutter configured to slide relative to the discharge plate to open or close the passage hole;
- and
- a seal member interposed between the shutter and the discharge plate of the guide member.
6 more elements
An image forming apparatus comprising:
- a photoconductor drum;
- an image forming unit configured to form an electrostatic latent image on a surface of the photoconductor drum;
- a developing unit configured to develop, using a toner, the electrostatic latent image on the surface of the photoconductor drum;
- a transfer unit configured to transfer, to a sheet of paper, a toner image developed on the surface of the photoconductor drum;
- a fixing device which fixes the transferred toner image on the sheet of paper;
- and
- a toner cartridge;
- wherein:
- the toner cartridge includes:
- a cylindrical toner container configured to contain a toner, the toner container having at one end portion thereof a filling port through which the toner is fed;
- a cap configured to close the filling port;
- a toner discharge port formed in the toner container at another end portion thereof;
- a guide member attached to said another end portion of the toner container;
- a discharge plate formed on an outer periphery of the guide member integral therewith;
- a passage hole formed in the discharge plate, and opposing the discharge port when the guide member is attached to the toner container;
- a shutter configured to slide relative to the discharge plate to open or close the passage hole;
- and
- a seal member interposed between the shutter and the discharge plate of the guide member.
15 more elements
A toner cartridge comprising:
- cylindrical toner containing means for containing a toner, the toner containing means having at one end portion thereof a filling port through which the toner is fed;
- cap means for closing the filling port;
- toner discharge means formed in the toner containing means at another end portion thereof;
- guide means attached to said another end portion of the toner containing means;
- discharge means formed on an outer periphery of the guide means integral therewith;
- passage means formed in the discharge means, and opposing the discharge means when the guide means is attached to the toner containing means;
- shutter means for sliding relative to the discharge means to open or close the passage means;
- and
- seal means interposed between the shutter means and the discharge means of the guide means.
6 more elements
Dependencies are inferred from the claim text.