Abstract: A liquid container for containing liquid includes a reflection member having a plurality of roof mirror assemblies arranged in a predetermined direction, each of the roof mirror assemblies having at least two reflecting surfaces positioned with a predetermined angle therebetween; wherein the reflection member is effective to divide incident light into a plurality of light beams by the plurality of roof mirror assemblies and to condensing at a predetermined position the beams sequentially reflected by the at least two reflecting surfaces of the roof mirror assemblies; wherein the reflection member is effective to divide incident light into a plurality of light beams by the plurality of roof mirror assemblies and to condensing at a predetermined position the beams sequentially reflected by the at least two reflecting surfaces of the roof mirror assemblies.

Abstract: The invention concerns a method for controlling print nozzles of a full-line printing head in an inkjet printer for printing digital photographic images, in which, in order to prevent any image printing extending beyond the edge of a recording medium, the edge position of the recording medium that is moved relative to the printing head is sensed by way of a CCD line sensor, and ink droplets are discharged toward a recording medium, by way of the printing nozzles, in order to produce image pixels.

Abstract: Power consumed by a resistor connected between a first power supply and a drive control circuit is controlled by a power driving circuit connected to a second power supply. When the value of current that flows into the resistor fluctuates, the value of current output from power driving circuit to a control terminal of the drive control circuit is controlled in such a manner that power consumed is the same as that when the resistance value of the resistor is a set value. As a result, the value of power consumed by the resistor is rendered substantially constant without being influenced by a variation in the resistance value of the driven resistor or by the power supply voltage. If such a drive circuit is used in driving the printhead of a printing apparatus, stabilized drive can be achieved with the minimum margin, power consumption can be suppressed and the lifetime of the printhead can be prolonged.

Abstract: First, the average of the diameters of the nozzles is determined. Next, the average of the capacitances of the piezoelectric elements is determined. Then, an optimum driving voltage is calculated based on a predetermined formula that represents the relationship between the nozzle-diameter average, the capacitance average, and the driving voltage to be applied from the driving device to the piezoelectric actuator. When one print head is made from several head units, several head units, for which the driving voltages of the same values are estimated as optimum, are selected and assembled together into the single print head.

Abstract: A printing apparatus includes a piezoelectric displacement element 11 for shifting a printing head 6 in a sheet feed direction, in which a recording sheet is fed. The element 11 shifts the head 6 at a predetermined pitch when a new printing pass is performed. Therefore, it is possible to improve the accuracy of printed images without being influenced by the degree of accuracy of a sheet feed mechanism.

Abstract: An irradiation device for treating molds comprising a UV irradiation source, and a means for holding the molds. The invention is also a method of treating molds, comprising the steps of exposing a mold to a high intensity UV radiation for a predetermined time.

Abstract: A Faraday system for measuring ion beam current in an ion implanter or other ion beam treatment system includes a Faraday cup body defining a chamber which has an entrance aperture for receiving an ion beam, a suppression electrode positioned in proximity to the entrance aperture to produce electric fields for inhibiting escape of electrons from the chamber, and a magnet assembly positioned to produce magnetic fields for inhibiting escape of electrons from the chamber. The chamber may have a relatively small ratio of chamber depth to entrance aperture width.

Abstract: During a print cycle, fire pulses of different profiles are delivered to ink-jets of a print head. Selected ones of the ink-jets are enabled in coordination with the occurrence of selected ones of the fire pulses to control a characteristic of drops that are jetted by the respective ink-jets.

Abstract: A method for producing a print carrier within a printing machine includes providing on a cylinder of the printing machine a prefabricated carrier material having a contact surface, and, within the printing machine, applying an impressionable polymer to the contact surface of the prefabricated carrier material; and a device for performing the method.

Abstract: An ink-jet printer includes a nozzle driving unit selectively driving a plurality nozzles to discharge ink through the nozzles, a signal supply supplying a driving signal to the nozzle driving unit, a shift register storing a nozzle selection signal to select a nozzle after the nozzle selection signal is synchronized with a clock signal, a counter counting an input number of the clock signal and deciding whether to operate the shift register, and a controller inputting a discharge signal into the signal supply to discharge the ink when the shift register is disabled. The counter compares a set-up value set up in accordance with a bit number of the nozzle selection data signal with the input number of the clock signal to disable the shift register. Therefore, noise introduced into the noise selection signal by the discharge signal is eliminated. Thus a malfunction of the head driving device can be prevented.

Abstract: An image processing apparatus which feeds a placed original, reads image information on the original by a reading unit, and forms an image on the original by an ink-jet printing head arranged on a downstream side along the original feed direction has an add-on processing part for changing the image information read by the reading unit in correspondence with the image to be formed by the ink-jet printing head.

Abstract: A method for producing precise, complex patterns on a glass or plastic substrate using a writing system capable of dispensing high viscosity materials at a volume rate synchronous with the rate of movement of a flexural member relative to said substrate, is disclosed.

Abstract: An ink jet head includes rows of pressure chambers, a common ink chamber, and a circulation channel. Filter holes are provided along a fluid channel connecting the common ink chamber with the pressure chambers. The common ink chamber is formed broader at a region separated from, and with a weaker mechanical stiffness than, the portion that is connected to the pressure chambers. The common ink chamber and the circulation channel are elongated in the direction that the pressure chamber rows extend. The circulation channel and the common ink chamber are in fluid communication with each other at one lengthwise end and both have an opening at the opposite lengthwise end to enable connection to the external ink supply.

Abstract: Embodiments of the present invention include methods and apparatus for compensating for variations between different ink or toner characteristics, and for variations between sensors, by characterizing the ink or toner and storing one or more static threshold level on printer consumable memory devices during manufacture of the printer consumables. When installed in a printer, a dynamic threshold may be determined based on the static threshold level; the dynamic threshold accounting for variations between sensors and printers. The dynamic threshold may further be stored on the printer consumable memory device.

Abstract: This Invention relates to a ultraviolet water sterilization device having a sterilization chamber module into a modularized configuration each module having two water-through ports, one port is used as a water inlet and the other port as an outlet of the sterilization chamber. The sterilization chamber may be formed into a single-wall configuration or a casing configuration. Inside the sterilization chamber are distributed n≧1 ultraviolet lamps with glass sleeves. Each chamber module may be used individually or in combination of two, three or more modules in a large chamber to meet the need of sterilization for a large water volume. Each module can be also arranged in separate sections so as to lessen manufacturing difficulties and simplify the assembly process.

Abstract: Three types of ink droplets of increasing volume are ejected from a single nozzle. Because ejection speed decreases as the volume of the ink droplet decreases, a smaller ink droplet will take a longer flight time to reach a recording sheet than a large ink droplet. Ejecting the smaller ink droplet at a timing earlier than the larger ink droplet can control the impact position of the smaller ink droplet, thereby preventing displacement of impact position on the recording sheet.

Abstract: In ink jet printing, a UV curable undercoat is first deposited on a substrate. The ink and undercoat are cured together. The thickness of the undercoat varies inversely with the thickness of the ink, so that a flat print surface is achieved. Application of an undercoat may be disabled on text material, to preserve edge definition.

Abstract: An n-bit serial shift register in an ink jet print head operates in a print mode or a test mode. When the shift register is operating in the print mode, n bits of print data are serially scanned into n number of bit registers and are then latched out to heater addressing logic circuitry in the print head to control a print operation. When the circuit is operating in the test mode, x bits of test point data from x number of test nodes in the print head are loaded in parallel into x number of the n number of bit registers, and are then serially scanned out to a test data output. In this manner, a single shift register may be used to scan in print data and scan out test data, thereby providing observability and controllability of the internal logic nodes of the print head while minimizing logic size and the number of input/output connections on the print head.

Abstract: This invention provides an ink jet printing apparatus and method with an inexpensive arrangement that allows a stable supply of an appropriate voltage to heaters without requiring varying load resistance or changing a power supply voltage. The ink jet printing apparatus of this invention has a plurality of nozzles arrayed in a print head; a plurality of energy generators installed one in each of the nozzles for generating an ejection energy to eject ink from the nozzles, the plurality of energy generators being divided into a plurality of blocks; and a drive controller f or simultaneously driving the energy generators in each block. The drive controller supplies an energy to the energy generators making up each block through different kinds of energy supply paths.

Abstract: An apparatus and method for prolonging the life of a print head while printing repeated patterns on a substrate. A repeating pattern to be printed is first analyzed. An algorithm creates at least one set of masks based on the analysis of the repeating pattern. The masks created by the algorithm are used to print subsequent patterns. The algorithm operates to prolong the life of the print head by substantially evenly distributing the number of times each print head is used, and substantially prevents overuse of one nozzle with respect to another.