摘要:
An ink jet recording head including a base plate substrate formed by a first base plate substrate and a second base plate substrate in which the thermal expansion coefficient of the first base plate substrate directly in contact with a substrate having discharge energy generating elements arranged thereon is smaller than that of the second base plate substrate and the first base plate substrate is formed by material having the thermal expansion coefficient closer to that of the substrate having the discharge energy generating elements arranged therefor, and at the same time, the first base plate substrate, above which the discharge energy generating elements are placed, is supported by a surface of the second base plate substrate and a side face in the longitudinal direction of the second base plate substrate.
摘要:
An ink jet recording method includes supplying a driving signal of a phase, wherein the driving signal comprising at least first and second signal periods with a rest period therebetween; and supplying a driving signal of a phase which is different to provide the first or second signal overlaps with the rest period of the driving signal having the first mentioned phase.
摘要:
An ink jet cartridge comprises an ink jet head unit for discharging the ink, and an ink tank unit having an ink supply port for supplying the ink to the ink jet head unit. The ink tank unit has a partition portion for partitioning between an ink storing portion for storing the ink to be supplied to the ink jet head unit and a negative pressure generating member receiving portion having a negative pressure generating member. The ink supply port is provided on the negative pressure generating member receiving portion. The partition portion has an ink communicating portion at an end portion of the partitioning portion on the side of the negative pressure generating member receiving portion where the ink supply port is provided, and makes contiguous the ink storing portion and the negative pressure generating member receiving portion in a movement direction of the ink tank unit when discharging the ink.
摘要:
An ink jet recording apparatus which performs recording using a plurality of types of inks which are different in nature such as level of thickness, improved to attain excellent gradation of recorded image with a reduced number of ink types which are prepared beforehand. In one form, a clear ink which does not contain any dye is mixed with an ink which contains dye so as to form an ink blend of a density which can be set by varying the mixing ratio. The ink blend thus formed is supplied to a recording head. The invention also provides an ink jet recording apparatus which permits inks of different compositions to be blended within the recording apparatus so a to enable selection of ink composition which is optimum for the image to be recorded or purpose of use.
摘要:
A liquid ejecting method includes providing a substrate having a heat generating surface for generating heat for generating a bubble in liquid; providing a movable member having a free end; providing an ejection outlet for ejecting the liquid using the generation of the bubble, the ejection outlet being opposed to the substrate with the movable member interposed therebetween; disposing the free end of the movable member at a downstream side with respect to a direction of flow of the liquid to the ejection outlet; and wherein the bubble displaces the free end of the movable member, and grows toward the ejection outlet to eject the liquid.
摘要:
An ink cartridge for supplying ink to a recording head includes a vacuum producing material accommodating portion for accommodating a vacuum producing material; an ink containing portion for containing ink, adjacent the material accommodating portion, with which the ink containing portion is in fluid communication through an opening at a bottom portion; an ink supply opening for permitting supply of the ink, in the material accommodating portion; an inward projection in the ink containing portion; and the projection is not less than 0.2 mm away from a boundary between the material accommodating portion and the ink containing portion.
摘要:
An apparatus for band compression processing of a picture signal which generates forecasting error signal and movement vector and updates only the movement vector during a comb-out operation. During comb-out processing, a picture signal is recirculated while the movement vector is produced and accumulated. At the end of the comb-out processing, the change in the movement vector from the accumulated vector is within a desired range. Therefore, the scale of a circuit for detecting the movement vector after the comb-out operation does not increase.
摘要:
A terminal management device manages the sharing by at the least one business entity of costs related to distributed terminal devices. In a case that a new business entity, which uses the terminal devices and provides services after the terminal devices have been distributed, the terminal management device computes and totals the differences of shared costs of each business entity, which will change in accordance with the addition thereof. Thus, by managing the changes of a plurality of business entities bearing the costs related to terminal devices, changes in the shares of the costs thereof can be adjusted easily even in a case that business entities using the terminal devices thereof and providing services change after the terminal devices have been distributed to subscribers. Therefore, the present invention facilitates the participation of a new service business entity in the provision of services using terminal devices subsequent to the terminal devices being distributed.
摘要:
A method for manufacturing an ink jet recording head, which is provided with a first base plate having energy generating elements, a second base plate having grooves for forming ink flow paths corresponding to the energy generating elements, and a discharge port forming member for forming discharge ports for discharging ink. The method includes the steps of forming the discharge ports by irradiating the discharge port forming member with laser light reflected from the groove wall faces, and direct laser light, and forming the flow paths by bonding the base plate and the second base plate with the grooves inside.
摘要:
There is disclosed a liquid discharging method and apparatus in which a bubble is formed and grown in the liquid communicated with atmosphere at an area of a discharge opening, and in which a movable member having a free end which guides the bubble toward the discharge opening while regulating growth of the bubble.