摘要:
An ink jet recording head capable of separating or coupling ink tanks from or with the head including a recording device substrate having a plurality of recording devices thereon for discharging ink, a wiring device for giving electrical recording signals to the recording device substrate, an ink supply member for supplying ink to the recording device substrate, and a filter member for removing dust particles or the like in ink. This recording unit is provided with all the functions of discharging ink, and coupled with a holder member having only the function of holding and fixing ink tanks. With the structure thus arranged, it becomes unnecessary to connect ink supply paths as in the conventional art, hence eliminating the provision of sealing members. The number of parts is made smaller, while making it possible to carry out inspection of heads only in accordance with the recording units, which significantly contributes to simplifying manufacture and providing highly reliable heads at lower costs.
摘要:
An ink refilling apparatus includes an ink absorbing member at a connecting portion relative to an ink recording head; an ink container holding portion to which an ink container for the ink recording head provided with a porous ink retaining member capable of producing a negative pressure therein, is mountable; an ink discharging device for accommodating the ink to be refilled into the ink container and supplying the ink to the ink absorbing member of the ink container; wherein after the ink of the ink absorbing member and the ink retained by the ink discharging device are contacted to each other, the ink is refilled using a negative pressure produced by consumption of the ink from the ink container; the improvement residing in that ink absorbing member having substantially the same property as the ink absorbing member of the ink container is provided at an ink container connection side of the ink discharging device, the ink absorbing members are contacted to each other upon mounting of the ink container, by which a meniscus formed at a contact surface of the ink absorbing member, is broken.
摘要:
A recording head has a recording element substrate on which a plurality of recording elements and a first connection electrode connected to the recording elements are disposed, a driving element substrate on which a plurality of driving elements for driving the plurality of recording elements and a second connection electrode connected to the driving elements are disposed, a circuit substrate connected to the driving element substrate for inputting a signal from outside to the driving elements, and a pressure contact member creating a pressure contact force for bringing the recording element substrate and the driving element substrate into pressure contact with each other. The recording element substrate and the driving element substrate are brought into pressure contact with each other by the pressure contact member, whereby the first connection electrode and the second connection electrode are connected together, the driving element substrate is held by and between the recording element substrate and the pressure contact member, and the driving element substrate and the circuit substrate are coupled together by a flexible member.
摘要:
An ink jet head has plural liquid ink paths, each having a discharge opening for discharging ink when energy is applied to ink in a corresponding ink path, and a common ink chamber communicating with an end of each ink path for supplying ink to the discharge openings. The discharge openings are disposed in plural groups, which are consecutively driven by simultaneously applying energy to ink paths corresponding to selected discharge openings in a given group. The ends of the ink paths are disposed in the common ink chamber in groups consecutively arranged in accordance with the driving order of the discharge opening groups, and each ink path includes a portion proximate to that end which is directed away from the next consecutively arranged ink path group. This arrangement suppresses pressure interference between the consecutively driven discharge opening groups and enables high-quality, high-speed recording in a compact recording head.
摘要:
A method for preserving an ink jet head and an ink jet head unit which can prevent worsening of the ink discharging features when the ink jet head is preserved or stored before it is assembled to an ink jet recording apparatus. The preserving method and the ink jet head unit are characterized in that terminals connected respectively to a plurality of energy generating means for generating energy for discharging ink are all also connected to each other by conductive means such as a clip or conductive tape.
摘要:
An ink jet recording apparatus includes a detachable ink cartridge for storage of the ink to be supplied to a recording head. A joint of an ink supply line in the ink jet recording apparatus to be coupled with an ink outlet portion of the ink cartridge for delivering the ink is loosely fitted to be slidable in a direction crosswise to an axis of the supply line toward a coupling position with the ink outlet portion.
摘要:
In an ink jet recording apparatus in which a filter is placed in an ink supply route, when an ink flow is formed in the ink supply route by ink ejection during recording operations and so on, a valve does not contact firmly to the filter, but when an ejection recovery operation is performed and an ink flow velocity increases, the valve contacts firmly to the filter and covers up a part of the filter. With this structure and operation, the effective cross-section area of the filter decreases and hence, a given quantity of pressure difference is produced between the upstream side and the downstream side of the filter. As a result, bubbles unable to pass through the filter at recording operations can pass through the filter when ejection recovery operations are performed.
摘要:
A recording medium in the sheet form is supplied into a designated direction guided by a sheet supply roller. An ink jet recording head in which a plurality of ink jet discharging orifices are arranged is placed in parallel with a surface of the recording sheet and in the direction perpendicular to the designated direction of supplying the recorded sheet. An adjustment screw is placed for correcting a warped shape of the ink jet recording head by means of displacing a neighbor of a central portion of a longer side of the ink jet recording head in the designated direction of supplying the recording sheet.
摘要:
An ink jet recording method of applying, to a piezoelectric element serving as an energy generating member for ink droplet formation and emission, a first voltage pulse for retracting the meniscus in a direction opposite to the emitting direction prior to the ink droplet formation, and a second voltage pulse supplied in succession to the first voltage pulse for emitting an ink droplet. The first voltage pulse is controlled according to the circumferential temperature of the piezoelectric element in action.
摘要:
In an ink jet recording apparatus having an ink jet recording head for discharging liquid and an ink container for containing the liquid therein, the ink jet recording head and the ink container are communicated with each other by an ink passage, and the ink passage has a separating and connecting portion having a communicating member formed of an elastic material and a fitting portion fitted to the communicating member.