Abstract: An attachment is mountable on a carriage in place of a liquid container that contains liquid and that is mounted on the carriage having a liquid jet head for jetting liquid, so that the attachment can supply liquid introduced from outside to the liquid jet head. The attachment has a pressure control means provided in a flow passage which is formed in an attachment body and through which the liquid introduced from the outside is supplied to the liquid jet head.

Abstract: An attachment is mountable on a carriage in place of a liquid container that contains liquid and that is mounted on the carriage having a liquid jet head for jetting liquid, so that the attachment can supply liquid introduced from outside to the liquid jet head. The attachment has a pressure control means provided in a flow passage which is formed in an attachment body and through which the liquid introduced from the outside is supplied to the liquid jet head.

Abstract: An object of the present invention is to provide a radio-on-fiber unit and a radio-on-fiber system which can transmit/receive signals at adequate rates especially, to/from a mobile device. A first aspect of the present invention relates to a radio-on-fiber unit (3) which includes an antenna array (1) and a light modulator array (2). The light modulator array (2) comprises antenna elements (5) and light modulators (7) that are connected with the respective antenna elements via electric circuits. The optical waveguide (13) is composed of linear optical waveguides (13) that are arranged along the light modulators (7) included in certain lines among the light modulators (7). The light modulator array (2) comprises reflection units (17) for connecting two adjacent linear optical waveguides with each other. Consequently, a signal light inputted to a light input unit (11) is outputted from a light output unit (15) via each linear optical waveguide (13).

Abstract: Problems To provide a method for evaluating characteristics of MZ interferometers in an optical modulator having a plurality of MZ interferometers. Means for Solving Problems When an optical modulator includes a plurality of MZ interferometers, the 0-degree component contains a signal derived from an MZ interferometer other than the MZ interferometers for evaluating the characteristic. For this, it is impossible to accurately evaluate the characteristic of the MZ interferometers. The present invention does not use the 0-degree component normally having the highest intensity. That is, the characteristic of the MZ interferometers are evaluated by using a side band intensity of the component other than the 0-degree component.

Abstract: A circuit board of an ink cartridge is provided with a plurality of terminals, with the contact portions of the plurality of terminals forming a plurality of lines. The contact portions of two terminals used for detecting installation are positioned in a first line, and the contact portion of a power terminal is positioned between the two terminals. The first line may be positioned to a leading side when the ink cartridge is moved in a prescribed direction to effect installation in a printer. Alternatively, the first line may be the line closest to an opening of an ink delivery port. Alternatively, the first line may be the line closest to an ink delivery needle.

Abstract: A circuit board of an ink cartridge is provided with a plurality of terminals, with the contact portions of the plurality of terminals forming a plurality of lines. The contact portions of two terminals used for detecting installation are positioned in a first line, and the contact portion of a power terminal is positioned between the two terminals. The first line may be positioned to a leading side when the ink cartridge is moved in a prescribed direction to effect installation in a printer. Alternatively, the first line may be the line closest to an opening of an ink delivery port. Alternatively, the first line may be the line closest to an ink delivery needle.

Abstract: Problems To provide a method for evaluating characteristics of MZ interferometers in an optical modulator having a plurality of MZ interferometers. Means for Solving Problems When an optical modulator includes a plurality of MZ interferometers, the 0-degree component contains a signal derived from an MZ interferometer other than the MZ interferometers for evaluating the characteristic. For this, it is impossible to accurately evaluate the characteristic of the MZ interferometers. The present invention does not use the 0-degree component normally having the highest intensity. That is, the characteristic of the MZ interferometers are evaluated by using a side band intensity of the component other than the 0-degree component.

Abstract: An attachment is mountable on a carriage in place of a liquid container that contains liquid and that is mounted on the carriage having a liquid jet head for jetting liquid, so that the attachment can supply liquid introduced from outside to the liquid jet head. The attachment has a pressure control means provided in a flow passage which is formed in an attachment body and through which the liquid introduced from the outside is supplied to the liquid jet head.

Abstract: According to one aspect of the invention, a remanufacturing method of a liquid container forms an inlet in a certain area, for example, a buffer chamber, other than a specific section including liquid reservoirs and flow paths adjoining to and directly communicating with a bubble trap flow path in the liquid container. In the state of closing a liquid feeder and opening an air open structure, the remanufacturing method injects a liquid through the inlet to fill a space in the upstream of the inlet with the liquid. In the state of opening the liquid feeder and closing the air open structure, the remanufacturing method injects the liquid through the inlet to fill a space in the downstream of the inlet with the liquid. The remanufacturing process seals the inlet after completion of the injection of the liquid. This arrangement enables the liquid to be refilled into the liquid container without damaging the functions of the liquid container.

Abstract: According to one aspect of the invention, a remanufacturing method of a liquid container forms an inlet in a certain area, for example, a buffer chamber, other than a specific section including liquid reservoirs and flow paths adjoining to and directly communicating with a bubble trap flow path in the liquid container. In the state of closing a liquid feeder and opening an air open structure, the remanufacturing method injects a liquid through the inlet to fill a space in the upstream of the inlet with the liquid. In the state of opening the liquid feeder and closing the air open structure, the remanufacturing method injects the liquid through the inlet to fill a space in the downstream of the inlet with the liquid. The remanufacturing process seals the inlet after completion of the injection of the liquid. This arrangement enables the liquid to be refilled into the liquid container without damaging the functions of the liquid container.

Abstract: Problem An object is to provide a method for evaluating characteristics of individual Mach-Zehnder (MZ) interferometers in an optical modulator which includes a plurality of MZ interferometers, Means for Solving Problems The method comprises a step for adjusting a bias voltage of the MZ interferometer, a step for eliminating zero-order components, a step for measuring an output intensity and a step for evaluating characteristics. An optical modulator (1) includes the first MZ interferometer (2) and the second MZ interferometer (3). The first MZ interferometer (2) includes wave-branching section (5). Two arms (6,7), wave coupling section (8) and electrodes which is not shown in figures.

Abstract: A method of manufacturing a liquid container, the liquid container including a liquid containing chamber in which a liquid can be contained, an air communicating passage allowing the liquid containing chamber to communicate with the air, a liquid supply port for supplying the liquid contained in the liquid container to an outside, a liquid flow passage allowing the liquid container and the liquid supply port to communicate with each other, a valve accommodating chamber disposed in the liquid flow passage, a differential pressure valve which is disposed in the valve accommodating chamber, which is normally urged to a closed state, and which is changed from the closed state to an opened state when a differential pressure of a side of the liquid supply port and a side of the liquid containing chamber is equal to or more than a predetermined value, and a film member forming a part of the valve accommodating chamber, the method includes: pressing a valve body of the differential pressure valve in a direction in wh

Abstract: According to one aspect of the invention, a remanufacturing method of a liquid container forms an inlet in a certain area, for example, a buffer chamber, other than a specific section including liquid reservoirs and flow paths adjoining to and directly communicating with a bubble trap flow path in the liquid container. In the state of closing a liquid feeder and opening an air open structure, the remanufacturing method injects a liquid through the inlet to fill a space in the upstream of the inlet with the liquid. In the state of opening the liquid feeder and closing the air open structure, the remanufacturing method injects the liquid through the inlet to fill a space in the downstream of the inlet with the liquid. The remanufacturing process seals the inlet after completion of the injection of the liquid. This arrangement enables the liquid to be refilled into the liquid container without damaging the functions of the liquid container.

Abstract: According to one aspect of the invention, a remanufacturing method of a liquid container forms an inlet in a certain area, for example, a buffer chamber, other than a specific section including liquid reservoirs and flow paths adjoining to and directly communicating with a bubble trap flow path in the liquid container. In the state of closing a liquid feeder and opening an air open structure, the remanufacturing method injects a liquid through the inlet to fill a space in the upstream of the inlet with the liquid. In the state of opening the liquid feeder and closing the air open structure, the remanufacturing method injects the liquid through the inlet to fill a space in the downstream of the inlet with the liquid. The remanufacturing process seals the inlet after completion of the injection of the liquid. This arrangement enables the liquid to be refilled into the liquid container without damaging the functions of the liquid container.

Abstract: A method of injecting a liquid into a liquid container detachably mounted on a liquid consuming device, the liquid container including: a liquid containing chamber in which the liquid can be contained; a liquid supply hole connectable to the liquid consuming device; a liquid guide passage for guiding the liquid contained in the liquid containing chamber to the liquid supply hole; an air communicating passage communicating the liquid containing chamber with an air; and a liquid residual quantity sensor provided in the liquid guide passage and for outputting different signals between in a case where the liquid guide passage is filled with the liquid and in a case where the liquid guide passage includes air entered thereinto, wherein the liquid containing chamber including at least three liquid containing chambers, and wherein the liquid containing chambers are mutually connected so as to have a descending connection where a pair of the liquid containing chambers are mutually connected so that a liquid flow in t

Abstract: A liquid container adapted for installation in a liquid jetting device includes an installation status notifier portion. The installation status notifier portion, in an installed state wherein the liquid container is installed in the liquid jetting device, is able to make the liquid jetting device determine that there exists the installed state, and alternatively to make the liquid jetting device determine, even in the installed state, that there exists a non-installed state wherein the liquid container is not installed in the liquid jetting device.

Abstract: The liquid delivery system is equipped with a liquid container that is installable on the liquid jetting device, a liquid supply device, and a liquid flow passage member. The liquid container is equipped with a recess portion having an opening provided on a first surface, a container main unit having a liquid delivery portion for delivering liquid to the liquid jetting device, and a sealing film that seals the opening of the recess portion to define together with an inner surface of the recess portion a chamber and a inner flow passage at an upstream side of the liquid delivery portion. The liquid flow passage member is connected to at least one of the chamber and the inner flow passage via a hole provided on the sealing film.

Abstract: A method of injecting a liquid into a liquid container detachably mounted on a liquid consuming apparatus, the liquid container including a liquid containing portion, a liquid supply portion connectable to a liquid ejecting portion of the liquid consuming apparatus, a liquid guide passage for guiding the liquid stored in the liquid containing portion to the liquid supply portion, an air communicating passage communicating the liquid containing chamber with air, a liquid detection unit provided in the liquid guide passage and for outputting different signals between in a case where the liquid guide passage is filled with the liquid and in a case where the liquid guide passage includes air entered thereinto, and a bubble trapping passage provided in the liquid guide passage between a detection position of the liquid detection unit and the liquid containing portion to trap bubbles in the liquid, the method includes: forming an injection port communicating with the liquid containing portion in the air communicati

Abstract: According to one aspect of the invention, a remanufacturing method of a liquid container forms an inlet in a downstream wall surface of a second chamber, which defines part of a bottom face of the liquid container. In the state of closing a liquid feeder and opening an air open structure, the remanufacturing method injects a liquid through the inlet to fill the second chamber with the liquid. In the state of opening the liquid feeder and closing the air open structure, the remanufacturing method injects the liquid through the inlet to fill a space from the second chamber to the liquid feeder with the liquid. The remanufacturing process seals the inlet after completion of the injection of the liquid. This arrangement enables the liquid to be efficiently refilled into the liquid container without damaging the functions of the liquid container.

Abstract: A liquid storage container prevents sucking of air bubbles into a liquid guide path, even when the amount of liquid remaining in the liquid storage chamber is reduced. The amount of liquid discarded, without being used, is reduced. A liquid storage container includes liquid storage chambers from which liquid is guided to a liquid-supplying unit through a liquid guide path and a liquid remaining-amount sensor for detecting the presence/absence of the liquid on the basis of variation in residual vibration that occurs when air bubbles enter the liquid guide path. The liquid storage chambers have concavities in the bottom walls thereof. Liquid outlets that communicate with the liquid guide path are formed at the bottom of the concavities, respectively. Therefore, air layers in the liquid storage chambers are prevented from coming into contact with the liquid outlets, respectively, before the remaining liquid does.