Abstract:
PROBLEM TO BE SOLVED: To prevent a prescribed liquid from being mixed in each nozzle array when a nozzle surface of a liquid ejecting head is cleaned. SOLUTION: This liquid ejector comprises: a liquid ejecting head (20) wherein a plurality of liquid ejecting nozzles (23) drilled in an array in the longitudinal direction of the nozzle surface 22 are formed in a plurality of arrays in a short-side direction; a cleaning member (24) which is provided in the longitudinal direction of the nozzle surface of the liquid ejecting head so as to wipe the nozzle surface; and a moving means (21) for relatively moving the cleaning member and the nozzle surface by bringing the cleaning member into contact with nozzle surface. The cleaning members (24) are each provided in such a manner as to correspond to each nozzle array among the plurality of arrays of liquid ejecting nozzles (23y-23k). The moving means (21) makes the respective cleaning members (24y-24k) correspond to the respective nozzle arrays (23y-23k) of the liquid ejecting head, and drives the cleaning members (24y-24k) so that only a nozzle surface area, wherein the nozzle array is positioned, can be cleaned. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To correctly detect a remaining amount of ink in an ink tank in a printer which discharges the ink. SOLUTION: The ink tank 11 filled with the ink 4 is set at a setting part 32 of a head cartridge 21. An ink supply part 13 of the ink tank 11 and a connection supply part 37 in the setting part 32 are connected to each other, whereby the ink 4 is supplied from the connection supply part 37 to a head chip 41. The presence/absence of the ink 4 is detected by detecting a change of an electrical resistance value between ink detecting parts 38 and 39 which detect the presence/absence of the ink 4 supplied to the connection supply part 37. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To prevent dust and the like from adhering to the inside of a liquid tank. SOLUTION: The liquid tank 11 for supplying a liquid 4 to a liquid discharging head 2 which discharges the liquid comprises a liquid storing part 12 where the liquid 4 is stored, and a liquid supplying part 13 for supplying the liquid 4 stored in the liquid storing part 12 to the liquid discharging head 2. The liquid storing part 12 is a joined united body of a container body 22 having one face as an opening 22a, and a lid body 23 for shutting the opening 22a of the container body 22. The container body 22 and the lid body 23 are formed by injection molding so that an inner face for forming the liquid storing part 12 has a smaller surface roughness than that of an outer face. The container body 22 and the lid body 23 are joined and united by injection filling of a resin 5 into groove parts 11a and 11b formed along mutual joining parts. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To exhibit sufficient cooling effect using ink. SOLUTION: A printer head chip 10 comprising a plurality of ink pressurizing chambers 50, each having a heating resistor 21, juxtaposed on a substrate 20 and ejecting ink in the ink pressurizing chamber 50 from a nozzle 41 by driving the heating resistor 21 is provided with an ink channel 22 communicating with each ink pressurizing chamber 50 and supplying ink thereto, a first ink channel hole 23A interconnecting the ink channel 22 and the outside of the substrate 20 and feeding ink to the ink channel 22, and a second ink channel hole 23B interconnecting the ink channel 22 and the outside of the substrate 20 and feeding ink in the ink channel 22 to the outside.
Abstract:
PROBLEM TO BE SOLVED: To provide a printer and an ink supply method in which a large quantity of ink can be stored through a simple structure while quickening the print operation of a print head. SOLUTION: In a printer 120 and a method for supplying into the print head 34 in the printer 120, the print head 34 is moved to a preset maintenance position within the moving range thereof and then a predetermined quantity of ink is fed to the print head 34. Consequently, ink can be supplied to the print head 34 simultaneously with maintenance thereof and a large quantity of ink can be stored through a simple structure while quickening the print operation of the print head.
Abstract:
PURPOSE:To improve photoprinting accuracy and make the life of a thermal head longer by bringing an ink ribbon into contact with the thermal head in the state of removing dust and the like adhered to the ink ribbon. CONSTITUTION:A cleaning pad 2 is mounted on a cover 1 of a thermal head driving section integrated with a thermal head 3. Dust and the like adhered to the surface of an ink ribbon 5 fed from an ink ribbon feeding roll 6 are removed by the cleaning pad 2. The ink ribbon 5 and the thermal head 3 from which said dust and the like are removed are brought into contact together and photoprinting is carried out. Photoprinting accuracy is improved and the life of the thermal head 3 is made longer by said arrangement.
Abstract:
PROBLEM TO BE SOLVED: To obtain a mechanism for detecting presence and location of a poor nozzle accurately. SOLUTION: The printer for printing a print pattern on a recording medium by ink jet system using at least one line head arranged over a length equal to the print width of a group of nozzles comprises (a) a recording medium carrying mechanism, (b) an image reading section arranged on the downstream side of a carrying passage for the line head and on the opposite side to the line head for carrying passage and reading out an image pattern on the recording medium, and (c) a section for detecting the location of a poor nozzle based on the detection results of a test pattern image being read out transparently at the image reading section when a test pattern is printed on a transparent film or a back print film. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To obtain a processing method capable of detecting presence and location of a poor nozzle accurately. SOLUTION: The printer for printing a print pattern on a recording medium by ink jet system using at least one line head arranged over a length equal to the print width of a group of nozzles comprises (a) a recording medium carrying mechanism, (b) an image reading section for reading out an image pattern on the recording medium, and (c) a section for detecting the location of a poor nozzle based on the detection results of a test pattern image being read out transparently at the image reading section when a test pattern is printed. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To stabilize a meniscus position of a liquid in a liquid ejection nozzle by suppressing the rapid supply of the liquid to a liquid ejection head from a liquid tank, in a head cartridge for ejecting the liquid, stored in the liquid tank, from the liquid ejection nozzle of the liquid ejection head. SOLUTION: This head cartridge 1 for supplying and ejecting ink 3 in an ink tank 2 to a print head 4 is equipped with an ink supply pipe 24 for supplying the ink 3 in the ink tank 2 to the print head 4, a first valve 26 for opening/closing a liquid channel of the ink supply pipe 24, and an outside-air communication hole 21 for taking in air, equivalent to the quantity of the reduced ink 3, into the ink tank 2 when the quantity of the ink 3 is reduced by supplying the ink 3 in the ink tank 2 to the print head 4. A second valve 29, which is provided between an opening/closing port of the first valve 26 and the communication hole 21, is opened after the opening of the first valve 26. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To help realize the miniaturization and cost saving of a discharge surface protecting device. SOLUTION: In this discharge surface protecting device, a discharge surface protecting cover 61 for a head cartridge 2 removed from a printing device 1 is constituted so that this cover 61 can be easily replaced with any other discharge protecting cover having a different function in accordance with use applications. Thus cleaning members designed for various use applications need not be provided inside the device as is the case with a conventional device. In addition, the miniaturization of the whole device and its cost saving can be achieved. COPYRIGHT: (C)2005,JPO&NCIPI