摘要:
An ink tank cartridge for use in an ink jet recorder has a container having exterior walls, a porous member is stored in the container, an ink supply port that extends through one of the exterior walls of the body to supply ink to the exterior of the cartridge, and a packing member, disposed within the ink supply port and having an opening therethrough and a rib formed on a upper surface. A pressing member may be provided to bias the packing member against an inner surface of the ink supply port. The ink tank cartridge can be assembled to limit the occurrence of air bubbles in the tank.
摘要:
An ink tank cartridge for use in an ink jet recorder has a container having exterior walls, a porous member is stored in the container, an ink supply port that extends through one of the exterior walls of the body to supply ink to the exterior of the cartridge, and a packing member, disposed within the ink supply port and having an opening therethrough and a rib formed on a upper surface. A pressing member may be provided to bias the packing member against an inner surface of the ink supply port. The ink tank cartridge can be assembled to limit the occurrence of air bubbles in the ink.
摘要:
An ink tank cartridge for use in an ink jet recorder has a container having exterior walls, a porous member is stored in the container, an ink supply port that extends through one of the exterior walls of the body to supply ink to the exterior of the cartridge, and a packing member, disposed within the ink supply port and having an opening therethrough and a rib formed on a upper surface. A pressing member may be provided to bias the packing member against an inner surface of the ink supply port. The ink tank cartridge can be assembled to limit the occurrence of air bubbles in the ink.
摘要:
An ink tank cartridge for use in an ink jet recorder has a container having exterior walls, a porous member is stored in the container, an ink supply port that extends through one of the exterior walls of the body to supply ink to the exterior of the cartridge, and a packing member, disposed within the ink supply port and having an opening therethrough and a rib formed on a upper surface. A pressing member may be provided to bias the packing member against an inner surface of the ink supply port. The ink tank cartridge can be assembled to limit the occurrence of air bubbles in the ink.
摘要:
Generally speaking, in accordance with the invention, an ink cartridge for an ink-jet recording apparatus can include a container formed by a plurality of walls, an ink supply port extending through at least one of said walls of the container to permit ink to pass out of the container, a porous member disposed within the container for transferring ink to the ink supply port, and a projecting member that projects into the container and is formed with an inlet of the ink supply port. The projecting member can engage against and locally compress a portion of the porous member in the region of the inlet of the ink supply port. The projecting member can be formed so that a first region of the container proximal the front wall of the container is shallower than a second region of the container proximal the back wall of the container.
摘要:
An ink jet recording apparatus in which a nozzle ink jet recording head provided with a nozzle plate provided with apertures for jetting an ink droplet and a capping device provided with a cap unit for sealing the apertures of the nozzle plate when the recording apparatus is not used are mounted, in which in the cap unit of the capping device, in a sealed state, an ink suction port for supplying negative pressure for exhausting ink from a nozzle aperture if necessary is arranged at the bottom and an atmospheric air open port for releasing negative pressure is arranged on one side and in which a porous plate provided with plural through holes for adjusting the distribution of pressure in the longitudinal direction of the cap unit is housed between the inner bottom face and the upper open face of the cap unit and further, an ink suction method of a recording head are provided.
摘要:
A capping member for an ink jet recording head is composed of a cap which is to be brought into contact with a surface of the recording head provided with nozzle orifices, and a cap case for holding the cap. A passage communicating an internal space defined by the cap with a suction hole connected to a suction pump and a passage communicating the internal space with an air hole connected to the outside are respectively formed into a specific shape so as to inhibit vaporization of an ink solvent in the internal space. A tube made of an elastic and restorative material is used for a tube connected to the suction pump. A tube made of a material having high gas-barrier characteristic is used for a tube connected to the capping member. Both of the tube is connected with each other by a connecting member in order to inhibit vaporization of an ink solvent from the tubes. Accordingly, the reliability of printing operation when printing is restarted after the long-term halt of the ink jet recording head is remarkably enhanced. The cap may be formed by fitting into a groove formed on a brim portion of the cup-shaped cap case having high rigidity. Therefore, elasticity of the cap can be controlled by the height thereof and can be deformed uniformly for whole periphery of the brim portion to attain high airtightness of the cap.
摘要:
An ink jet recording apparatus in which a nozzle ink jet recording head provided with a nozzle plate provided with apertures for jetting an ink droplet and a capping device provided with a cap unit for sealing the apertures of the nozzle plate when the recording apparatus is not used are mounted, in which in the cap unit of the capping device, in a sealed state, an ink suction port for supplying negative pressure for exhausting ink from a nozzle aperture if necessary is arranged at the bottom and an atmospheric air open port for releasing negative pressure is arranged on one side and in which a porous plate provided with plural through holes for adjusting the distribution of pressure in the longitudinal direction of the cap unit is housed between the inner bottom face and the upper open face of the cap unit and further, an ink suction method of a recording head are provided.
摘要:
An ink supply communication path is formed so that one end thereof is arranged outside a region confronting a pressure producing chamber at a region confronting a reservoir chamber; and an ink supply constricted port is arranged at a portion of the ink supply communication path, the portion being remotest from the pressure producing chamber. Since the pressure producing chamber is connected to the ink supply constricted port through the elongated ink supply communication path, a jet flow from the ink supply constricted port grows into a large flow along the ink supply communication path, which in turn allows air bubbles susceptible to stagnation in the vicinity of the ink supply constricted port to be discharged by such large flow.
摘要:
An ink flow passage 7f is formed from an ink storage chamber of an ink cartridge 7 to an ink supply port. A passage control system 7j is located in the ink flow passage. The passage control system is capable of opening and closing the ink flow passage when receiving a drive force from an actuator 32. Particularly, air bubbles A1 staying on a filter member 22 within an ink supplying needle 21 is effectively discharged to a capping system 9 in a manner that a negative pressure is accumulated in an inner space of the capping system 9 in a state that the passage control system 7j is placed to a valve closing state. The passage control system 7j is provided in the ink cartridge. Accordingly, every time the ink cartridge is exchanged with a new one, the passage control system 7j is also exchanged with a new one. Accordingly, the printing function restoring operation performed through a cleaning operation based on the negative pressure accumulation is improved in reliability.