Abstract: An ink cartridge is disclosed and includes a hollow ink tank body, a cover member connected to the body, a pressure regulator mounted on the bottom of the body, a tank disposed under the body and connected to the bottom thereof, and a hollow tube. The body is defined with a cavity therein and an outlet port formed on a bottom thereof. The cover member has a filling inlet and an air vent formed thereon. The tank corresponds to and communicates with the pressure regulator, and further has a venthole and a porous member disposed therein. The hollow tube communicates with the air vent of the cover member and the venthole of the tank. Therefore, the atmospheric air passes into the body via the hollow tube and the tank.

Abstract: An ink cartridge includes a hollow ink tank body, a cover member connected to the hollow ink tank body, a hollow tube and a pressure regulator arranged inside the hollow ink tank body. The cover member has an air vent penetrating therethrough, and a first through-hole protrusion adjacent to the air vent and extending forwards the hollow ink tank body. The pressure regulator includes a holder, a resilient member arranged inside the holder, an elastic plate connected to the resilient member and abutting against the holder, a secure member disposed over the elastic plate, and a thin film covered the secure member. The pressure regulator further has a through-hole projection extending outwardly therefrom for connecting the hollow tube that connects to the first through-hole protrusion of the cover, so that the atmospheric air passes through the pressure regulator via the hollow tube after a sealing film is removed.

Abstract: An ink cartridge adapted for an ink jet printer includes a housing, a top cover and an ink porous member. The housing has a bottom wall, a plurality of upstanding side walls extending from edges of the bottom wall, a plurality of upstanding baffles extending from a middle of the bottom wall to define an inner chamber and an outer chamber and an ink outlet port in communication with the inner chamber for containing ink therein. The ink porous member is arranged within the inner chamber of the housing for being impregnated with the ink, and the ink is filled in the outer chamber thereby to storage with a higher quantity of ink.

Abstract: An ink cartridge includes a hollow ink tank body defining an accommodating chamber therein. The ink tank body has an ink outlet port and a mounted seat being formed on a bottom surface thereof. A cover member has an ink filling inlet formed therein. The cover member is fixedly secured to the hollow ink tank body and sealing the accommodating chamber of said hollow ink tank body. A pressure regulator is mounted on the mounted seat and has a box body, an elastic member, and a cover body. As a result of a negative pressure will increase during printing, the elastic member will change its shape and allow air pass through it unidirectional, and because the elastic member has an elastic force, the ink tank still maintains a certain amount of negative pressure and thereof the ink will not leak through the pressure regulator to outside.

Abstract: An ink cartridge includes an ink tank body for receiving an ink porous member which is a foam material for absorbing ink, a cover body for being covered with the ink tank body, an ink outlet port protruded outwardly from an outer surface of the ink tank body, and a stopping member arranged in the ink outlet port for receiving an ink delivery needle which the ink is flowed into; wherein the ink porous member has a substantially planar bottom surface relative to a substantially planar bottom surface of the tank body and is dimensioned to substantially fill the accommodating chamber in an uncompressed manner for efficiently supplying ink to the ink delivery needle.

Abstract: An ink-jet printer cartridge upper cover includes an inner tube, an outer tube, a non-rigid sealing ring defining a hole at the center portion thereof, and a vent-tip forming a cavity about the bottom surface thereof and having an air passageway extending from the bottom surface of said cavity through the hole, the upper cover inner tube, and said upper cover outer tube. Inner surface of the non-rigid sealing ring hole engages with outer surface of the upper cover inner tube, and outer surface of the hole engages with the inner surface of the cavity.

Abstract: A toner cartridge with a toner stirring mechanism, which is well mixed with toner contained in a toner container, thereby blocking of the toner can be prevented and fluidity of the toner also can be improved by the movement of the toner stirring mechanism in the toner container, and stable toner flow to a developing device. Furthermore, the toner stirring mechanism further includes a stirring member having a grating shape and a pair of swing rods respectively connected to two sides through the connecting rods, wherein one of the swing rods can be driven via a camshaft of the transmission mechanism being driven through a force externally transmitted, by way of a motor disposed outside of the toner container.

Abstract: A shutter device for protecting a photosensitive rotary drum includes a drum cover, at least one torsion spring, a press button, and a compression spring. The drum cover has a fixed end pivotally connected to a predetermined location of a process cartridge, a free end shielded on an exposed portion of said drum and an inside surface formed with a hook, and the torsion spring is arranged on said fixed end of the drum cover. The press button is received in a room of a side of the process cartridge, and the compression spring is positioned between a protruded rod formed inside said press button and a sleeve disposed on said room. Furthermore, the present invention has a better protection for the photosensitive rotary drum, and in the meanwhile, can be as a switch of an exposure window of the process cartridge.

Abstract: A charging contact plate is used for preventing a primary charge roller of a cartridge used in a printer from shifting in a longitudinal direction and for charging the primary charge roller. The charging contact plate includes a main plate, a semicircle plate and a contact portion. The main plate has an end fastened on the cartridge and connected with a power supply within the printer. The semicircle plate has an end disposed at another end of the main plate. And, the contact portion has an end disposed at another end of the semicircle plate and has another end contacting with the primary charge roller.

Abstract: An ink cartridge includes an ink tank body having a plurality of surfaces defining an accommodating chamber therein and an ink outlet part disposed on one of the surfaces thereof. An ink porous member is positioned in the accommodating space of the tank body. A cover body has an ink charging inlet and an air inlet part communicated with the accommodating space of the tank body, respectively. A ventilated screw with a hollow ring is arranged on the air inlet part of the cover body and defining a ventilated channel therein. A tab mechanism is installed to a position on one side of the cover body. Whereby can efficiently supply ink to an ink delivery needle and avoid leaking during transportation, storage, or operation, and have a wrong prevention function.