Abstract:
PROBLEM TO BE SOLVED: To provide a liquid ejecting device and a cleaning method, shortening a printing time by cleaning an ejecting surface without interrupting the printing operation. SOLUTION: The liquid ejecting device includes: a conveying mechanism 12 that conveys a recording paper; a head cartridge 3 having the ejecting surface 6 where a plurality of nozzles 7 for ejecting the liquid are formed; a supporting mechanism 10 that brings the recording paper 5 in contact with the ejecting surface 6; and a control unit 17 that controls the whole operation. The control unit 17 is configured, in the case of cleaning the ejecting surface 6, to move the supporting mechanism 10 upward in a nearly vertical direction related to the ejecting surface 6 so as to bring a non-image printing area on the recording paper 5 supported by the supporting mechanism 10 in contact with the ejecting surface 6, and then to control the conveying mechanism 12 to convey the recording paper in a conveying direction by a predetermined amount while keeping the contact state between the non-printing area on the recording paper 5 and the ejecting surface 6. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To make the cleaning effect of a discharge surface improved, and to make discharge stability improved. SOLUTION: There are provided a liquid discharge head which discharges a liquid i in the state of droplets from discharge openings 27a formed in the discharge surface 23a and causes them to land on an object and a moving mechanism. The moving mechanism has an absorbing member 34 which has elasticity, is brought into contact with the discharge surface 23a of the liquid discharge head 23, and absorbs the liquid i adhering on the discharge surface 23a; and the moving mechanism moves the absorbing member 34 relative to the discharge surface 23a, while keeping it in contact with respect to the discharge surface 23a. A surface-layer portion 39 of the absorbing member 34 is impregnated with a solution containing a surfactant. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To sustain liquid ejection performance of a liquid ejection head by providing a means for coating the nozzle surface with surfactant in a head cap for protecting the nozzle surface of the liquid ejection head. SOLUTION: In a head cartridge 3 comprising a print head 10 having a nozzle member 12 provided with a nozzle 13 for ejecting ink supplied from an ink tank 9 containing each color ink, and a head cap 11 fixed removably to the print head 10 to move relatively and protecting the nozzle surface 12a, a means 14 for coating the nozzle surface 12a with surfactant is provided in the head cap 11. Consequently, a film of surfactant is formed on the nozzle surface 12a while absorbing ink drops adhering thereto, thus sustaining ink ejection performance of the print head 10. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid composition inhibiting dissolution of silicon to the liquid, capable of inhibiting deposition of a silicon containing compound to the liquid and causing clogging of the liquid channel or nozzle, and to provide recording liquid, a liquid cartridge storing the recording liquid, a liquid ejection cartridge provided with the liquid cartridge, and a liquid ejection unit capable of printing a high grade print by using the recording liquid stored in the liquid ejection cartridge and a method of ejection of the liquid. SOLUTION: The ink 2 contains hydrophobic colloid charged so as to have positive zeta potential when the pH of the ink 2 is in the range of 4 to 6. Thus, dissolution of silicon, silicon compounds, etc. into the ink 2 from circuit board 44 composed of silicon wafer, etc. can be inhibited. Further, deposition of silicon, silicon compounds, etc. having been dissolved in the ink 2 on heating resistor 48 so as to cause kogation or deposition thereof in ink channel 42 or nozzle 45a so as to cause clogging leading to ink ejection failure can be prevented. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a dye vaporizing type transferring recording set having merits such as faster absorption of ink, no bleeding developing in a print or the like. SOLUTION: This dye vaporizing type transferring recording set consisting of an ink, which includes a dye and a solvent and is vaporized or sublimated by heating, and a photographic paper, which confronts with the ink through an interval between them in order to be recorded for dye vaporizing type transferring. The photographic paper 100 is produced by forming an accepting layer 105 consisting of a cellulose ester-containing dye fixing layer 101. The ink distinctively contains a glycol ester as a solvent. The preferable cellulose ester is a cellulose acetate butylate. The preferable accepting layer contains a particulate inorganic compound, the average particle diameter of which is below 1 μm. The preferable solvent has a boiling point of 175 deg.C or higher.
Abstract:
PURPOSE:To easily measure the voltage across connector pins. CONSTITUTION:The title jig is composed of a jig main body member 1 which is mounted on a connector 10a and contact member 2 fitted to the main body member 1 and the contact member 2 is provided with a contact section 5 which is brought into contact with the pin-side contact section 14 of the connector 10a and external terminal section 6 electrically connected to the section 5. The contact section 5 is fitted to the main body member 1 so that the contact section 5 can press the pin-side contact section 14 of the connector 10a when the main body member 1 is mounted on the connector 10a. It is referable to fit a connector fixing member 3 having a recessed section 3a which can accommodate the projecting section 12a and 13a on the side face of the connector 10a to the main body member 1.
Abstract:
PURPOSE:To prevent a signal recorded on a track from being erased accidentally, by detecting the record of the signal on each track, and setting a recording waiting state by moving a head to the track on which no signal is recorded. CONSTITUTION:A head position arithmetic part 10 detects the presence/absence of the signal on each of the tracks 21-250, and sends each optimum head position to a system control part 5. Based on the information, the system control part 5 stores data representing the recording or the non-recording of the signal on each of the tracks 21-250 and data of the head position in a recording state storage part 16. Thus, after retrieval being completed, a switch 8 is switched to a contact REC side, and also, the head 3 is moved to the track with the smallest number of non-recorded tracks based on the data of the recording state storage part 16, then, the recording waiting state is set. In such a way, the non-recorded track can be detected automatically, and it is possible to surely protect the track on which the signal is recorded without breaking an erroneous erasure preventing lug.
Abstract:
PURPOSE:To suppress high band noise component at high luminance level by changing characteristic of a filter circuit in a soft limiter section during a period in which at least noise bar is generated at the time of variable speed reproducing. CONSTITUTION:Characteristic of a filter circuit 20 is changed by a JOG signal SJOG, and, for instance, a filter circuit 20A consisting of an HPF 21 and an LPF 22 is used. The LPF 22 consists of transistors Q1, Q2 and plural resistors and capacitors provided between them. Further, a series circuit consisting of a capacitor C2 and a switch 23 is provided in parallel to a capacitor C1. When the switch 23 is on/off controlled by the JOG signal SJOG capacity value that drops high band component is changed and filter characteristic is changed. That is, at the time of ordinary reproduction, the switch 23 is in off state and characteristic of the filter circuit 20A goes to HPF-like characteristic. Thus, high band noise component at high luminance level can be suppressed.