Abstract: A paper feed operation is performed by a width less than one pixel (½) in addition to an integer multiple number of pixels (n/2) with respect to a basic number of pixels inherent to an ink jet recording apparatus having a multi nozzle head having n nozzles. When a plurality of tines of pixel recording operations are performed for a single pixel region, ink dots land at a distance less than one pixel (½) at the pixel density. Thus, a variation in ink surface density on a recording sheet in an overlapping print operation is reduced, thereby efficiently increasing the image density, and preventing blurring by promoting absorption and evaporation of an ink to and from a paper sheet.

Abstract: A damper (1) has silicone-based unvulcanized rubber (4) interposed between a housing (2) and a shaft (3) which are disposed in such a manner as to be relatively rotatable about an axis (A) in (R) directions with respect to each other, and rotational energy between the housing (2) and the shaft (3) is absorbed through the deformation of the silicone-based unvulcanized rubber (4).

Abstract: A network system capable of delivering a large amount of data such as video data freely according to the intentions of the sender and the receiver alone is realized by a plurality of stations provided on at least one loop shaped optical network in which any one of the plurality of stations is capable of carrying out unidirectional communications with respect to any other one of the plurality of stations, where at least one wavelength is allocated to each station such that each station can transmit data by using a wavelength allocated to each station, receive data of any wavelengths transmitted from any other stations, and select only necessary wavelengths so as to select correspondent stations from which data are to be received.

Abstract: A control portion for arithmetically predicting a temperature transition of a printing head using a predicting parameter includes an interface for receiving the predicting parameter from outside of the apparatus. The predicting parameter is based on a table regarding temperature increase of the printing head.

Abstract: In a recording apparatus for effecting recording with a recording head on a recording medium,

Abstract: A CRT socket includes a focus side discharge electrode plate formed by a projection from a metallic plate. An elastic contact piece projects from a bottom edge of the metallic plate in a direction reverse to a projecting direction of an electrode portion. An attaching frame portion for nipping and fixing both sides of the focus side discharge electrode plate is formed in a side wall surrounding a discharge air gap chamber. When the focus side discharge electrode plate is attached to the attaching frame portion, the elastic contact piece makes elastic contact with an inside lead portion of the resistance element. Accordingly, the resistance element and the focus contact are connected to each other without requiring a separate connecting device for connecting the resistance element.

Abstract: An ink jet recording apparatus comprising a recording head having discharge ports for discharging the ink, an ink tank for storing said ink to be supplied to the recording head, and suction recovery device for stabilizing the ink discharge from the recording head, characterized in that the suction recovery device has a plurality of suction operations, which can be selected in accordance with the content of the discharge stabilization.

Abstract: A code printing method and apparatus which prints an image and a code on the same recording medium. The apparatus stores a plurality of density patterns corresponding to each density, and codes corresponding to the density patterns. When code data is inputted and printing of the code is instructed, the apparatus determines the density of each pixel of image data, selects the density pattern representing the code data among the density patterns corresponding to the pixel density, and prints the density pattern instead of the image pixel. Thus, the image and code are printed without deterioration of image quality.

Abstract: Whether or not a color image is present adjacent to a black image is discriminated. Whether the black image is formed using a black ink or a plurality of color inks C, M, and Y is determined in accordance with the discrimination result. When the black image is formed using the plurality of color inks, it is recorded using a repetitive pattern of two of C, M, and Y so as to prevent blurring with the color image, and to improve fixing characteristics by decreasing the total ejection amount.

Abstract: A cathode ray tube (CRT) socket provides for improved performance by increasing the creeping distance between high and low voltages associated with a correspondingly connected CRT. The CRT socket includes a socket body with a cylindrical central hole extending through its front and rear faces, signal connecting means arranged on a concentric circle about the cylindrical central hole, the signal connecting means engaging with signal terminals from the CRT, and an insulating cover portion arranged on the same concentric circle as the signal connecting means, the insulating cover portion having a high voltage connecting means for engaging with a focusing terminal of the CRT. The signal connecting means is constructed by forming a recessed signal contact portion in the front face of the socket. A plurality of signal contact holes are formed in the recessed signal contact portion of the front face. Each of the plurality of signal contact holes are spaced apart at a predetermined interval.

Abstract: An ink jet recording apparatus for performing recording using a recording head for ejecting an ink from a plurality of ejection orifices, includes a print control unit for performing a print operation while switching a print mode between a thin multi-pass print mode for sequentially recording divided recording data in a plurality of number of times of relative scan operations of the recording head with respect to a single recording area, and a 1-pass print mode for recording all recording data in a single relative scan operation of the recording head, and an eject quantity control unit for controlling the eject quantity of the ink ejected from the recording head so that a total ink quantity on the recording area in the thin multi-pass print mode is larger than a total ink quantity in the 1-pass print mode.

Abstract: A CRT socket includes a focus side discharge electrode plate formed by a projection from a metallic plate. An elastic contact piece projects from a bottom edge of the metallic plate in a direction reverse to a projecting direction of an electrode portion. An attaching frame portion for nipping and fixing both sides of the focus side discharge electrode plate is formed in a side wall surrounding a discharge air gap chamber. When the focus side discharge electrode plate is attached to the attaching frame portion, the elastic contact piece makes elastic contact with an inside lead portion of the resistance element. Accordingly, the resistance element and the focus contact are connected to each other without requiring a separate connecting device for connecting the resistance element.

Abstract: A CRT socket has a partition wall for partitioning a focus contact storing chamber and a base insertion hole which has sufficient strength, while maintaining a creepage distance between a focus contact and a signal contact sufficient to avoid arcing. The focus contact is formed in a leaf shape. A partition wall on a side of the base portion is interposed utilizing a gap in which a pin-type focus contact is interposed between a base and a focus pin in a cathode ray tube. The outside face of a projecting portion is covered with the partition wall. Increased strength is obtained in the partition wall for partitioning the focus contact storing chamber and the base insertion hole. The creepage distance between the focus contact and the signal contact is lengthened by forcing charges to travel, not only over the surfaces, but also along overlapping surfaces.

Abstract: An ink jet print head includes ink ejection outlets for ejecting ink, passages communicating with the ejection outlets; a common chamber for supplying the ink to the passages; ejection energy generating elements for producing energy for ejecting the ink; an ink supply passage for supplying the ink to the common chamber; a buffering chamber disposed at a position through which a pressure wave resulting from driving of the ejection energy generating elements propagate, the buffering chamber containing a gas for attenuating the pressure wave, wherein a part of a wall constituting the buffering chamber has a gas transmitting property.

Abstract: An ink jet recording device includes scanning means for scanning ink jet recording heads in a scanning direction, each of the recording heads having plural ink discharge generating elements and plural discharge ports associated therewith, the discharge ports being adapted to perform a recording operation within a recording area which is a total area covered by the discharge ports during one scanning operation, supplying means for supplying recording signals corresponding to the recording area to a group of the ink discharge energy generating elements, and conveying means for conveying a recording medium relative to the recording heads.

Abstract: An ink jet recording apparatus includes a plurality of ink jet recording heads for executing color recording, a recovery structure for maintaining and recovering a discharge state with respect to the plurality of recording heads, and a waste ink collecting container for collecting waste ink discharged from the recovery structure. The recovery structure has a plurality of waste ink collecting routes to the collecting container in accordance with each of the plurality of recording heads, and the plurality of waste ink collecting routes are disposed so as to discharge a predetermined kind of waste ink and other plural kinds of waste ink to different portions of the collecting container, respectively.

Abstract: An ink jet printing system to perform printing by ejecting ink toward a printing medium by employing a printing head having ink passages for ejecting ink through ejection openings and a common ink chamber supplying the ink into the ink passages.

Abstract: A cleaning member comprising an ether series polyurethane rubber elastic body, the curing agent component of said ether series polyurethane rubber elastic body essentially consisting of a bifunctional component, or in addition, said ether series polyurethane rubber elastic body further containing a water repellency-adding material having an active group capable of chemically bonding to said polyurethane rubber.

Abstract: An ink jet recording apparatus comprises a recording head adapted for ejecting at least two colors of ink, a discriminater for discriminating between character data and bit map data, and a controller for selecting a character data recording mode or a bit map data recording mode in accordance with a discrimination result by the discriminater. The controller controls an amount of ink ejection in the bit map data recording mode to be less than that in the character data recording mode.

Abstract: An ink jet recording apparatus comprises a recording head having ink ejection orifices, and a common ink chamber communicating with the ink ejection orifices to supply the ink to the ink ejection orifices, a driver for non-simultaneously causing at least one of adjacent ones of the ejection orifices of the recording head to eject the ink, and a driving controller for changing an order of ejection performed by the driver.