Abstract: An ink cartridge for an ink jet printer having a housing having at least one wall. The ink cartridge further has at least two ink chambers for containing different ink accommodated in the housing. Ink supply ports are formed in one wall of the housing within each of the ink chambers. Each of the ink supply ports has an inner opening and an outer opening. The distance from the inner opening of a first ink supply port to that of a second ink supply port adjacent to the first ink supply port is different from a second distance from the outer opening of the first ink supply opening to that of the second ink supply port.

Abstract: When a detection device detects any kind of change regarding track recording after the start of the track recording a grouping instruction is given to information attaching and generating device. Then, the information attaching and Generating device attaches the same group name information to a group, in which a track where the recording has been started in an information recording medium to a track recorded at the point when the grouping instruction has been received are made to be the same group, and group control information is generated. Therefore, since the grouping is automatically performed by any kind of change regarding the track recording, a user can omit the operation that he/she performs the grouping by himself/herself, and thus the operation load of the user can be reduced.

Abstract: An ink jet recording head having a head body for ejecting ink and ink supply channels for introducing ink supplied from an ink tank to the head body is disclosed. The recording head inventively and uniquely includes a channel forming plate having grooves and a sealing plate fastened to the channel forming plate for closing the openings of the grooves in a sealing fashion to form the channels. The resultant recording head is easy in working and assembling, and reduced in size.

Abstract: Management information is read from an information storage medium having the management information recorded thereon, the management information including track number information imparted to at least one track and group management information for managing as selective recording information one or a plurality of tracks as one group. Judgment is then made upon whether the group management information is included in that management information, A display mode is changed depending on a case where the group management information is recorded and a case where it is not recorded, and it is then displayed in a displaying device.

Abstract: In a vibrator unit, at least one piezoelectric vibrator is fixed on a base member in a cantilevered manner, such that a first region of the piezoelectric vibrator is fixed on a first face of the base member. A resin case is formed with a housing space extending through a first end face to a second end face thereof. The housing space includes a first housing part which opens to the first end face of the case, a second housing part which continues to the first housing part, and a third housing part which continues to the second housing part. In the first housing part, a part of the piezoelectric vibrator except for the first region is housed.

Abstract: In a vibrator unit, a plurality of piezoelectric vibrators are arranged on a base member in a cantilevered manner. A case is formed with a housing space having a bonding area at which a first inner portion of the housing space and a first face of the base member are opposed with a gap. At least one adhesive inlet, from which an adhesive is poured, communicates with the bonding area. At least one air outlet, from which air remaining in the bonding area is expelled as the poured adhesive fills the gap is provided.

Abstract: An information recording apparatus includes recording means for recording information onto a recording medium; detection means for detecting vibrations or possibilities of vibrations of the apparatus; and recording control means for prohibiting or suspending recording of the information onto the recording medium in accordance with a detection result of the detection means.

Abstract: An information reproducing apparatus which reads compressed information recorded on a recording medium by one of a plurality of different compression methods, writes the compressed information read into a memory, supplies the compressed information in the memory, to an expander in the order of writing and outputs reproduced information. The type of compression method used in compressing the information read from the recording medium is determined and the timing of starting to read the compressed information from the memory is controlled in accordance with a determination.

Abstract: Ink flow paths are formed that corresponds in number to the ink chambers of a mounted ink cartridge, to supply ink from the ink chambers to a recording head. These ink flow paths are constituted by first communication paths (59, 60), which communicate with the ink outlets of corresponding ink chambers, second communication paths (61, 67), which communicate with the corresponding ink inlets of the recording head, and convergent flow paths (65), which connect the first and the second communication paths and converge as they approach the recording head. Filters (56) are located in the second communication paths.

Abstract: In order to ease the discharge of air bubbles stagnated in end portions of a reservoir in an ink jet recording head, the end portions of the reservoir are so formed that the widths thereof are substantially equal to the depths thereof. Air bubbles entered in those portions are drawn into pressure generating chambers by directly applying negative pressure to discharge outwards from nozzle orifices.

Abstract: A bias voltage controlling apparatus controls a bias voltage for a focus servo control to control a position of a focal point of a light beam, which is irradiated onto an information record surface of an information record medium, in a direction perpendicular to the information record surface. The bias voltage controlling apparatus is provided with: a distinguishing device for distinguishing a type of the information record medium; and a controlling device for optimally controlling the bias voltage on the basis of the type of the information record medium distinguished by the distinguishing device.

Abstract: An inkjet recording head including a head cover for protecting the recording head. The head cover includes a notch formed at a top portion thereof which exposes a side portion of the nozzle plate of the ink-jet recording head so that a wiping blade can effectively wipe a top surface of a nozzle plate without interference by the head cover.

Abstract: An optical axis adjusting device of a vehicle lamp is provided which comprises a reflector tiltably fixed to a lamp housing by a joint member; an aiming screw, turnably laid between the lamp housing and the reflector, for tilting the reflector; a drive gear fastened to an end of the aiming screw; a racing gear facing the drive gear and mounted on the aiming screw so as to rotate relatively with the aiming screw; toothed parts formed in respective surfaces of the drive and racing gears facing each other; and a guide, formed on the housing, for guiding a tool to be engaged with the toothed parts. When the tool is turned, the aiming screw is turned simultaneously with the rotation of the drive gear. The racing gear rotates in a direction opposite to that of the drive gear.

Abstract: An audio apparatus having a detachable control panel or operating-part main unit includes a microcomputer for detecting an OFF state of an ACC position of the ignition key, or the attached/detached state of the operating-part main unit. When such states are detected, normal operations of the microcomputer; namely, the operations to turn on an SWD V.sub.DD terminal and an A/D port and to set a KEY DATA terminal into a standby mode, are stopped intermittently in order to execute a low consumption process in which electric power is consumed only for holding information in memory in the microcomputer. When the microcomputer detects the OFF state of the ignition key or the OFF state of an installation detection switch and, an alarm ON state is set in the memory in the microcomputer, then an alarm sound is generated from a speaker for a predetermined time.

Abstract: An on-vehicle electronic device includes a main body which is fastened to a vehicle and has a first terminal, and an operation unit which is detachably mounted in the main body and which has a second terminal electrically connected to the first terminal when the operation unit is mounted in the main body. The main body includes a reference power source applying a reference voltage to the first terminal, and a voltage detection unit for detecting a voltage applied to the first terminal. The main body further includes a mounting detection unit. The mounting detection unit determines, based on a difference between a first detection voltage detected by the voltage detection unit when the operation unit is mounted and a second detection voltage detected by the voltage detection unit when the operation unit is not mounted, whether or not the operation unit is mounted and electrically connected to the main body via the first and second terminals.

Abstract: A method of operating a disk player that reproduces information recorded on a disk. Programs on the disk are addressed from a directory in a memory and the programs are sequentially accessed according to the order in the directory. The directory can be filled by inserting random numbers or by scanning through the programs or over the tracks. A table of contents at the beginning of the disk is read if possible. The tracks can be scanned and only tracks having new programs are reproduced. Also a playback position servo operates with a dead-zone in the drive voltage.

Abstract: First and second memories are provided for receiving key signals which control a display to output a video composition made up of a plurality of video signals. The key signals are received from a key signal generator in synchronism with the speed of the key signal generator. The first memory receives a key signal directly, while the second memory receives a gated key signal for storing a key signal related to, for example, a still image, and the gating is controlled so that the key signal in the second memory is only overwritten when it is expressly intended to do so. A read address generator controls the reading out of key signals from both memories, in synchronism with the speed of the display apparatus which displays the video images. A further gate may be provided to control input of key signals into the first memory, this further gate being controlled by the state of the output key signal coming from the second memory.

Abstract: Address search method for use in a disk player repeatedly performing a track jump operation for jumping over a plurality of recording tracks at one time. The present method changes to a jump state from a locking state in which a tracking servo system of the disk player is locked so that an information reading light spot of a pickup of the disk player follows a recording track. Subsequently, a present address obtained from read output of the pickup is compared with a target address and the tracking servo system is placed in the locking state. The preceding steps for comparing the addresses are repeated until the target address is exceeded by the present address.

Abstract: A pulse-width modulation drive circuit for a load such as a motor, particularly, a motor used in a compact disc player or the like, in which losses in diodes used to absorb reverse EMF are substantially eliminated. For this purpose, the pulse widths of pulse signals used to on-off control drive current flow through the load are controlled so as to eliminate the diode losses. The circuits of the various embodiments of the invention are designed so as to be easily implemented in integrated circuit form.