Abstract: The method of manufacturing a liquid ejection head comprises the steps of: forming a plurality of piezoelectric elements on a diaphragm; stacking an intermediate plate which includes recess sections for covering the piezoelectric elements and drive wires connected to the piezoelectric elements, on a surface of the diaphragm on which the piezoelectric elements are formed, in such a manner that peripheral spaces are formed around the piezoelectric elements by means of the recess sections and electrical connections are created between the drive wires and the piezoelectric elements; connecting an integrated circuit to end sections of the drive wires which are opposite to connection sections between the drive wires and the piezoelectric elements; forming an actuator function unit by electrically and mechanically bonding the diaphragm, the piezoelectric elements, the drive wires, the intermediate plate and the integrated circuit after the formation of the piezoelectric elements on the diaphragm, the stack of the in

Abstract: The liquid ejection head comprises: a plurality of pressure chambers connected to a plurality of nozzles from which liquid is ejected, the pressure chambers being arranged in a two-dimensional configuration; a diaphragm which constitutes a wall of each of the pressure chambers, the wall being located opposite to the nozzles; a plurality of piezoelectric elements disposed at positions corresponding to the pressure chambers on a surface of the diaphragm which is on an opposite side of the diaphragm from the pressure chambers, the piezoelectric elements causing portions of the diaphragm corresponding to the pressure chambers to deform; an intermediate plate which is located on a piezoelectric element side of the diaphragm where the piezoelectric elements are disposed and which forms a space around a periphery of each of the piezoelectric elements; electrical wires for electrically connecting drive circuits which drives the piezoelectric elements with drive electrodes of the piezoelectric elements, the electrical

Abstract: The liquid ejection apparatus comprises: an ejection head which includes: a nozzle through which a droplet of liquid is ejected onto an ejection receiving medium; a pressure chamber which accommodates the liquid to be ejected from the nozzle; and a piezoelectric element which is provided at the pressure chamber and applies an ejection force to the liquid inside the pressure chamber; a pressure sensor which is provided at the pressure chamber and generates a determination signal corresponding to pressure in the pressure chamber; an integration device which integrates the determination signal obtained by the pressure sensor for a prescribed integration time period; and an ejection abnormality judgment device which judges whether or not an ejection abnormality occurs in the nozzle, according to a comparison result of comparing an integration result obtained from the integration device with a previously established threshold value.

Abstract: The liquid ejection head comprises: a nozzle plate which has a plurality of ejection apertures through which a liquid is ejected; a plurality of pressure chambers which are connected respectively to the ejection apertures; a plurality of liquid supply flow channels which supply the liquid respectively to the pressure chambers; a common liquid chamber which supplies the liquid to the liquid supply flow channels; a plurality of pressure generating devices which respectively deform the pressure chambers; and a plurality of electrical wires which supply drive signals to the pressure chamber generating devices, wherein the electrical wires are provided so as to pass through the common liquid chamber.

Abstract: The drive circuit drives a plurality of piezoelectric elements connected in a matrix connection, each of the piezoelectric elements having a first electrode and a second electrode, and the drive circuit comprises: a drive signal generating device which generates a drive signal with voltage of a single polarity to be applied to the piezoelectric elements; a drive controlling device which controls a timing for applying the drive signal to each of the piezoelectric elements; and a plurality of switching devices which apply the drive signal to the piezoelectric elements according to control of the drive controlling device, a number of the plurality of switching devices being smaller than a number of the plurality of piezoelectric elements, wherein the drive controlling device sequentially applies the drive signal with voltage of the single polarity to the first electrode and the second electrode in succession.

Abstract: The liquid ejection apparatus comprises: an ejection head which has an ejection element, the ejection element including an ejection aperture through which a droplet of liquid is ejected onto an ejection receiving medium, a pressure chamber which is connected to the ejection aperture and accommodates the liquid to be ejected from the ejection aperture, and a pressurizing device which applies an ejection pressure to the liquid accommodated in the pressure chamber; a drive signal application device which applies to the pressurizing device a meniscus vibration drive signal for suppressing increase in viscosity of the liquid in vicinity of the ejection aperture by causing a meniscus surface of the liquid to vibrate and to eject no droplet from the ejection aperture; a pressure determination device which determines pressure in the pressure chamber when the meniscus surface is vibrated by the meniscus vibration drive signal; and a judgment device which judges an abnormal state of the ejection element from pressure i

Abstract: The image forming apparatus comprises: a recording head having a plurality of recording elements which form an image on a recording medium; a drive voltage generating device which generates a recording drive voltage to be applied to active ones of the recording elements that are used at a moment in recording and a non-recording drive voltage to be applied to at least a part of non-active ones of the recording elements that are not used at the moment in the recording; and a recording control device which controls application of the non-recording drive voltage to the non-active recording elements so that a total of an overall drive current for the active recording elements and an overall drive current for the non-active recording elements is substantially even during the recording.

Abstract: An object of the invention is to obtain a high-quality image by reading an image of an electronic paper with high accuracy. When optically copying the electronic paper, a controller reads out display characteristics such as a reading resolution and a reading light quantity from a display characteristic memory of the electronic paper. The controller performs optical copying processing after setting optimal conditions on the basis of the display characteristics which have been read out from the display characteristic memory.

Abstract: Objects of the present invention are to facilitate filling out by hand an electronic paper and to realize digitization of contents with which the electronic paper is filled out by hand with a simple structure. A read image is obtained by optically reading a reading-object of the electronic paper. Based on the document information written on the electronic paper and writing-conditions during document writing, which are represented by the document information, a display image of the document in accordance with the read image information is formed. A written image is separated and extracted by converting a density only of pixels among the respective pixels of the read image, whose densities vary in accordance with the document writing and which correspond to a portion, to which ink of a pen for the handwriting is not adhered.

Abstract: At a host device, attribute information (the presence or absence of an overwriting prohibition and the like) of each of image display mediums (electronic papers) is stored in association with individual identification numbers, which are unique to each image display medium. Hence, when a predetermined image is to be displayed at an image display medium in accordance with input from an operation portion, for example, an image display medium for which an overwriting prohibition has not been written to the attribute information can be selected, and image data can be transmitted to this display medium for displaying the image. Thus, image display at each image display medium can be excellently controlled in accordance with attribute information such as overwriting prohibitions and the like.

Abstract: A recording medium is structured by a recording layer, which is for storing storage data, and an indication layer, which is for indication information used for identifying the storage data, being laminated together. Writing and deletion are possible at the indication layer. A PC generates inputted storage data and indication information for identifying the storage data, and transmits them to a writing/reading device. The writing/reading device writes the storage data and the indication information to the recording medium. The storage data is written at the recording layer, and the indication information is written at the indication layer. The storage data stored at the recording medium can be easily and correctly grasped.

Abstract: A holding stand is constituted by a carrying case for holding sheets of electronic paper and a base for uprightly supporting the carrying case that is substantially vertical. From the holding stand, two page fields, each expressing the number of pages of sheets of electronic paper to be displayed and position page field expressing a current page position of electronic paper and incremented on each of the sheets, are added to image data, and the image data is output to the sheets of electronic paper. In each sheets, when the two page fields coincide with each other in comparison between the two page fields, an image based on the image data is displayed in a display region. When the two page fields are different from each other, the position page field is incremented by one, and the position page field is transmitted to the next electronic paper.

Abstract: An image recording apparatus with good color reproduction and easy color adjusting function. An image recording apparatus includes a first color correction unit coupled to receive image signals from the image signal source, a second color correction unit coupled to receive output image signals of the first color correction unit, and a third color correction unit coupled to receive output image signals of the second color correction unit. The image recording apparatus further includes an adjusting device for at least the first color correction unit and the third color correction unit, and an adjustment information entering device. Good color reproduction is realized with color correction and data compression, and is not accompanied by hue change in color perception. Manufacturing variations in the color output unit are corrected by the third color correction unit. Easy setting of the reference for color adjustment independently of the input image signals is also realized by the unit.

Abstract: An image recording apparatus with good color reproduction and easy color adjusting function. An image recording apparatus includes a first color correction unit coupled to receive image signals from the image signal source, a second color correction unit coupled to receive output image signals of the first color correction unit, and a third color correction unit coupled to receive output image signals of the second color correction unit. The image recording apparatus further includes an adjusting device for at least the first color correction unit and the third color correction unit, and an adjustment information entering device. Good color reproduction is realized with color correction and data compression, and is not accompanied by hue change in color perception. Manufacturing variations in the color output unit are corrected by the third color correction unit. Easy setting of the reference for color adjustment independently of the input image signals is also realized by the unit.