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US 7,680,434 B2Granted
Developing cartridge, image forming apparatus having the same, and maintenance method of developing cartridge
AssigneeSamsung Electronics Co., Ltd.
InventorsJun-hee Lee, Gun-soo Chang
Life of this patent
Estimating the term…
Abstract
A developing cartridge includes a main frame including a photosensitive medium, and a charging member frame including a charging member to charge the photosensitive medium and detachably disposed at the main frame. The main frame includes a plurality of frame reference grooves, and the charging member frame includes a plurality of frame reference projections to be inserted into the plurality of frame reference grooves of the main frame.
Claims36
A developing cartridge comprising:
- a main frame comprising a photosensitive medium;
- and
- a charging member frame detachably attached to the main frame and comprising:
- a laser beam through-hole through which a laser beam passes through the charging member frame to form an image on the photosensitive medium;
- and
- a charging member to charge the photosensitive medium and detachably disposed at the main frame.
3 more elements
A developing cartridge comprising:
- a developing frame comprising a photosensitive medium;
- a used toner frame to store used toner to be removed from the photosensitive medium;
- a charging member frame detachably attached to the developing frame and comprising a laser beam through-hole through which a laser beam passes through the charging member frame to form an image on the photosensitive medium, and a charging member to charge the photosensitive medium and detachably disposed at the used toner frame;
- and
- left and right side plates detachably disposed at the left side and the right side of the developing frame and the used toner frame to couple the developing frame and the used toner frame.
2 more elements
An image forming apparatus comprising:
- a printing medium feeding unit to feed a printing medium;
- a developing cartridge to form an image corresponding to printing data on a photosensitive medium, the developing cartridge comprising;
- a developing frame comprising the photosensitive medium;
- a used toner frame to store used toner to be removed from the photosensitive medium;
- a charging member frame detachably attached to the developing frame and comprising a laser beam through-hole through which a laser passes through the charging member frame, and a charging member to charge the photosensitive medium and detachably disposed at the used toner frame;
- and
- left and right side plates detachably disposed at the left side and the right side of the developing frame and the used toner frame to couple the developing frame and the used toner frame;
- a transferring roller disposed to rotate in contact with the photosensitive medium and to transfer the image on the photosensitive medium onto the printing medium fed from the printing medium feeding unit;
- and
- a discharging unit to discharge the printing medium having the image formed.
7 more elements
A charging member frame detachably disposed at a main frame of a developing cartridge, the charging member frame comprising:
- a pair of charging roller holders including one end of each of the charging roller holders to be hinge-connected to the charging member frame;
- and
- a charging roller rotatably disposed at the other end of each of the charging roller holders.
A pair of charging roller holders of a developing cartridge, the charge roller holders comprising:
- one end to rotatably support a charging roller;
- and
- another end to be hinge-connected to a charging member frame;
- wherein the charging member frame is detachably disposed at a main frame of the developing cartridge;
- wherein when the charging member frame is disposed at the main frame of the developing cartridge, the pair of charging roller holders allows the charging roller to contact a photosensitive medium of the developing cartridge.
2 more elements
A charging roller of a developing cartridge, the charging roller comprising:
- a pair of charging roller holders to be hinge-connected to a charging member frame to rotatably support the charging roller;
- wherein the charging member frame is detachably disposed at a main frame of the developing cartridge;
- wherein when the charging member frame is disposed at the main frame of the developing cartridge, the pair of charging roller holders allows the charging roller to contact a photosensitive medium of the developing cartridge.
A developing cartridge comprising:
- a main frame comprising a photosensitive medium;
- a charging member frame comprising a charging member to charge the photosensitive medium and detachably disposed at the main frame;
- and
- a pair of charging roller holders configured in that one end of each of the charging roller holders supports a shaft of the charging roller and the other end of each of the charging roller holders is hinge-connected to the charging member frame;
- wherein when the charging member frame is disposed at the main frame, the pair of charging roller holders allows the charging roller to contact the photosensitive medium.
2 more elements
An image forming apparatus comprising:
- a printing medium feeding unit to feed a printing medium;
- a developing cartridge to form an image corresponding to printing data on a photosensitive medium, the developing cartridge comprising:
- a main frame comprising the photosensitive medium;
- a charging member frame comprising a charging member to charge the photosensitive medium and detachably disposed at the main frame;
- and
- a pair of charging roller holders configured in that one end of each of the charging roller holders supports a shaft of the charging roller and the other end of each of the charging roller holders is hinge-connected to the charging member frame;
- wherein when the charging member frame is disposed at the main frame, the pair of charging roller holders allows the charging roller to contact the photosensitive medium
- a transferring roller disposed to rotate in contact with the photosensitive medium and to transfer the image on the photosensitive medium onto the printing medium fed from the printing medium feeding unit;
- and
- a discharging unit to discharge the printing medium having the image formed.
7 more elements
A developing cartridge comprising:
- a main frame comprising a photosensitive medium;
- and
- a charging member frame comprising a charging member to charge the photosensitive medium and detachably disposed at the main frame,
- wherein the charging member comprises:
- a charging roller;
- and
- a pair of charging roller holders configured in that one end of each of the charging roller holders supports a shaft of the charging roller and the other end of each of the charging roller holders is hinge-connected to the charging member frame.
4 more elements
A developing cartridge comprising:
- a developing frame comprising a photosensitive medium;
- a used toner frame to store used toner to be removed from the photosensitive medium;
- a charging member frame comprising a charging member to charge the photosensitive medium and detachably disposed at the used toner frame;
- and
- left and right side plates detachably disposed at the left side and the right side of the developing frame and the used toner frame to couple the developing frame and the used toner frame,
- wherein the charging member comprises:
- a charging roller;
- and
- a pair of charging roller holders configured in that an end of each of the charging roller holders to support a shaft of the charging roller and the other end of each of the charging roller holder is hinge-connected to the charging member frame.
6 more elements
An image forming apparatus comprising:
- a printing medium feeding unit to feed a printing medium;
- a developing cartridge to form an image corresponding to printing data on a photosensitive medium, the developing cartridge comprising;
- a developing frame comprising the photosensitive medium;
- a used toner frame to store used toner to be removed from the photosensitive medium
- a charging member frame a charging member to charge the photosensitive medium, detachably disposed at the used toner frame, and comprising a charging roller and a pair of charging roller holders configured in that an end of each of the charging roller holders to support a shaft of the charging roller and the other end of each of the charging roller holder is hinge-connected to the charging member frame;
- and
- left and right side plates detachably disposed at the left side and the right side of the developing frame and the used toner frame to couple the developing frame and the used toner frame;
- a transferring roller disposed to rotate in contact with the photosensitive medium and to transfer the image on the photosensitive medium onto the printing medium fed from the printing medium feeding unit;
- and
- a discharging unit to discharge the printing medium having the image formed.
7 more elements
Dependencies are inferred from the claim text.