摘要:
An ink cartridge for reserving an ink in an inner space defined therein, including: (a) an ink supplying portion provided to face a lower portion of the inner space so as to allow supply of the ink from the inner space therethrough; (b) an air introducing portion provided to face the lower portion of the inner space so as to allow introduction of an air into the inner space therethrough; (c) at least one electrode receiver for receiving first and second electrodes, such that the first and second electrodes face the inner space; and (d) a bubble-path-formation restrainer restraining an electrical path allowing a continuity between the first and second electrodes, from being formed of a bubble which is generated as a result of the introduction of the air into the inner space. Also disclosed is an inkjet recording apparatus including the above-described ink cartridge and a detector which detects an electrical characteristic between the first and second electrodes.
摘要:
An ink jet head is provided with a passage unit and an actuator unit. The passage unit comprises a nozzle and a pressure chamber communicating with the nozzle. The actuator unit comprises a piezoelectric layer, a first electrode connected with a front surface of the piezoelectric layer, a second electrode connected with a back surface of the piezoelectric layer, a first insulating layer located between the second electrode and the passage unit, and a first conductive member. The first insulating layer comprises a first through hole. At least a part of the first conductive member is located in the first through hole. The passage unit comprises a concave portion located at a position facing the first through hole, and a protruding portion which protrudes from an inner surface of the concave portion. One end of the first conductive member is electrically connected with the second electrode. The other end of the first conductive member makes contact with the protruding portion.
摘要:
An inkjet recording apparatus having a main body, a recording head, and an ink cartridge. The ink cartridge includes: (a-1) an ink reservoir having a spout portion; and (a-2) a case which has a case wall spaced apart from a reservoir wall of the ink reservoir, with a space being formed between the case wall and the reservoir wall. The case has a case opening such that the space is open to an exterior of the case through the case opening. The main body includes: (b-1) a contact member having a recess formed in its contact surface, and held in contact at the contact surface with of the case wall such that the recess is opposed to the case opening and the spout portion; (b-2) a gas supplier for supplying a positively pressurized gas into the recess; and (b-3) an ink drawing member connected to the spout portion so that the ink can be supplied from the ink reservoir toward the recording head through the ink drawing member.
摘要:
An inkjet head includes a flat cable having: (a) first drive wires connecting first output terminals and a first driver circuit; (b) first controller wires extending from the first driver circuit; (c) second drive wires connecting second output terminals and a second driver circuit; and (d) second controller wires extending from the second driver circuit. The output terminals includes (i) a terminal which is most distant from the first driver circuit among the output terminals and which is one of the second output terminals, and/or (ii) a terminal which is most distant from the second driver circuit among the output terminals and which is one of the first output terminals. The first controller wires extend from the first driver circuit toward one of opposite sides of the second driver circuit that is remote from the first driver circuit.
摘要:
An ink cartridge which is to be mounted on an ink-jet printer and from which ink is supplied to at least one nozzle of an ink-jet printing head of the ink-jet printer, the ink cartridge including: an ink tank in which ink is stored; an ink outlet hole which is formed in a wall of the ink cartridge that defines the ink tank and through which the ink flows out of the ink tank; and an air inlet hole which is formed in the wall of the ink cartridge that defines the ink tank and through which air flows into the ink tank. The air inlet hole is formed within an area of the wall in which the air inlet hole contacts the ink stored in the ink tank.
摘要:
An ink cartridge has a cartridge body to which an ink supply pipe extending from an inkjet printer is detachably attached, and which has an ink storing space for storing an ink to be supplied to the inkjet printer via the ink supply pipe, and a valve mechanism that opens and closes both an ink path which, when the ink supply pipe is attached to the cartridge body, communicates with the ink supply pipe, and an atmospheric air path through which atmospheric air is introduced into the ink storing space, the valve mechanism including a valve member having a first opening-closing portion which is relatively movable with respect to the cartridge body, and which opens and closes the ink path and a second opening-closing portion which is relatively movable with respect to the cartridge body, and which opens and closes the atmospheric air path.
摘要:
There is disclosed a buffer tank for an ink jet printer, comprising: a main body having a top plate; an air intake through which outside air is taken into the tank; an air outlet passage comprising at least a part extending in the main body downward from the top plate, to flow the air in the tank out into an ink cartridge; and an ink inlet passage comprising at least a part extending in the main body downward from the top plate, to draw the ink in the cartridge into the tank. Each of the air outlet and ink inlet passages comprises a hollow needle disposed at the top plate and vertically extends, and at least one of the air outlet and ink inlet passages comprises a hollow tubular member extending downward from the top plate, whose inner space is in communication with an inner space of the corresponding needle.
摘要:
A cartridge removably installed on a working device and having (a) a passage which is formed so as to extend in a direction of movement of the cartridge for installation thereof on the working device and which has an open end open at one end of the cartridge, and (b) a non-reversibly changing member disposed in the passage, at a suitable distance from the open end, and changeable from a first state for a first relationship with the projecting member, to a second state for a second relationship with the projecting member, the non-reversibly changing member being unable to change from the second state back to the first state. The state of this cartridge may be detected by a cartridge detecting device including a projecting member insertable into the passage through the opening as the cartridge is moved for installation, the projecting member being movable in the direction of movement of the cartridge, a first detector operable by the cartridge when the cartridge is moved for installation, a second detector operable by the projecting member, depending upon whether the non-reversibly changing member is placed in the first or second state, during the movement of the cartridge, and a determining portion operable to determine the state of the cartridge on the basis of outputs of the first and second detectors.
摘要:
A liquid discharging head includes a channel unit formed of a plurality of stacked plates having openings and a liquid channel formed of the openings of the stacked plates. A curing material is filled in a step formed due to shift of the openings provided in the adjacent plates respectively, and the curing material forms part of an inner surface of the liquid channel. Consequently, the channel inner surface becomes smooth, and a liquid discharging head with little residual bubbles and with excellent bubble discharging capability is provided. Further, the attenuation of a pressure wave due to the step can be prevented.
摘要:
A recording head for use in an inkjet recording device, the recording head including a cavity unit having a plurality of nozzles each of which ejects a droplet of an ink, a plurality of communication holes which communicate with the plurality of nozzles, respectively, and a common ink chamber which communicate with each of the communication holes and which temporarily stores the ink to be supplied to the each of the nozzles via a corresponding one of the communication holes. The cavity unit has at least one inner wall surface which defines the common ink chamber and has respective open ends of the communication holes. The at least one inner wall surface further has a plurality of grooves each of which is connected, at one end thereof, to the open end of a corresponding one of the communication holes.