摘要:
An ink jet recording head includes a top plate having recesses for forming ink paths connected to a plurality of ejection outlets from which ink is ejected; a substrate for forming the ink paths by joining it with the top plate, with the recesses facing inward; wherein the top plate overhangs from an edge of the substrate in the direction of a plane of the joint between the top plate and substrate.
摘要:
A container for containing printing liquid for supplying to an ink jet head for an ink jet recording apparatus. The container includes first and second chambers, with the first chamber containing negative pressure producing material and having an air vent communicating with ambient air and a supply port for supplying printing liquid to the ink jet head. The second chamber communicates with the first chamber via a communication port and provides a printing liquid reservoir for the first chamber. In an area adjacent a wall extending from the communication port, a capillary force provided by the negative pressure producing material decreases in a direction perpendicular to and towards that wall at least adjacent a part of the communication port which is uppermost when the container is in use.
摘要:
An ink jet head for discharging a plurality kinds of inks includes a discharge port surface provided with a plurality of discharge ports for discharging ink, the discharge ports being arranged into different groups for ejecting discharging different kinds of inks. The groups of the discharge ports each for discharging different kind of ink are provided in a line, and the discharge port surface has a central water-repellent area provided with the discharge port groups and a hydrophilic belt is provided adjacent to the central water-repellent area and along an array of the discharge ports. The hydrophilic belt is separately provided for each of the groups of the discharge ports.
摘要:
A liquid jet head can be detachably fitted into an opening portion of a liquid tank having a liquid absorbing member therein by a liquid receiving member with a liquid path formed therein. The liquid head has a filter, and the peripheral part of the filter is immovably embedded in the foremost end of the liquid receiving member such that the radially outermost end of the filter is not exposed, and the filter is maintained so as to have a dome-shaped contour adapted to come in pressure contact with the liquid absorbing member when the liquid jet head is fitted to the liquid tank by the immovable embedding of the peripheral part of the filter therein. A liquid jet apparatus with a liquid tank has a liquid absorbing member and an opening portion formed thereon, as well as a liquid jet head of this type. A method of immovably securing a filter to a liquid receiving member of a liquid jet head is also described.
摘要:
A liquid container has a negative pressure generating member containing chamber receiving a negative pressure generating member formed with a fibrous material and having a liquid supply portion and an atmosphere communicating portion, a liquid containing chamber forming a substantially enclosed space having a communicating portion communicating with the negative pressure generating member containing chamber and storing a liquid to be supplied to the negative pressure generating member, and a partition wall separating the negative pressure generating member containing chamber and the liquid containing chamber and formed with the communicating portion. The liquid container also includes an atmospheric air introducing mechanism provided in the partition wall on the side of the negative pressure generating member containing chamber, in communication with the communicating portion, and a projecting portion in a part of the atmospheric air introducing mechanism projecting on the side of the negative pressure generating member containing chamber.
摘要:
An ink jet recording head includes a top plate having recesses and walls defining a common ink chamber for containing ink supplied to the recesses, and a substrate having an edge. The substrate and top plate are joined and together form ink paths connected to ejection outlets, and the substrate is provided with energy generating means for generating energy to eject ink through the ejection outlets. The relationship m
摘要:
A liquid container for containing printing liquid for supplying to a recording head for an ink jet recording apparatus, the container includes a first chamber containing a negative pressure producing material and having a printing liquid supply port connectable to a recording head for allowing printing liquid to be supplied to the recording head and an air vent for allowing ambient air to enter the container, and a second chamber which provides a printing liquid reservoir for the first chamber and is substantially closed apart from a communication port communicating with the first chamber to allow the printing liquid to flow into the first chamber and to allow air to be introduced into the second chamber from the first chamber. The second chamber comprises a replaceable printing liquid chamber.
摘要:
A liquid container for a liquid jet recording apparatus comprises a first chamber containing negative pressure producing material and having a liquid outlet connectable to a liquid jet head to supply liquid from the container to the liquid jet head and an air vent for allowing ambient air into the container, wherein the liquid outlet is provided in a bottom portion of the first chamber. A second chamber communicates with the first chamber by a communication path and is substantially hermetically sealed. A wall extends upwardly from the communication path of the first chamber. An ambient air introducing path is provided for between the wall and the negative pressure producing material extending from a point partly up the wall toward the communication path for introducing ambient air into the second chamber.
摘要:
A liquid container for a liquid jet recording apparatus includes a first chamber containing negative pressure producing material and having a liquid outlet. At a lower part of the cartridge and contactable to the liquid jet head, the liquid container supplies liquid from the cartridge to the liquid jet head. An air vent allows ambient air into the cartridge. A second chamber communicates with the first chamber by means of a communication part, except for which the second chamber is substantially hermetically sealed. The second chamber is disposed at the lower part of the cartridge and provides a liquid reservoir for the first chamber. Ambient air is introduced through an air path substantially free of negative pressure producing material, having an inlet in the first chamber separated from the air vent by the negative pressure producing material, and an outlet arranged to be lower than the inlet during use of the cartridge to enable air to be supplied to the second chamber through the negative pressure producing material and the air path as liquid is withdrawn from the liquid outlet.
摘要:
An ink jet head for ejecting ink, has an ink ejecting portion having an ink ejecting port formed thereon so as to eject ink through the ink ejecting port, a positioning portion for definitely determining the position of the ink jet head relative to an apparatus using the ink jet head when the ink jet head is fitted to the apparatus, an ink supplying portion adapted to be connected an ink supplying unit while ink is supplied to the ink jet head, and an electric connecting portion adapted to be electrically connected to an electric connecting portion on the apparatus side so as to send and receive signals. The positioning portion, the ink supplying portion and the electric connecting portion are disposed on a different surface from a surface on which the ink ejecting portion is disposed and at least one of the electric portion and the ink supplying portion is disposed on an opposite side surface to a surface on which the positioning portion is disposed.