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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
61	A wire printhead	EP93830182.7	1993-04-28	EP0622214B1	1997-03-26	Cattaneo, Sergio

62	Impact print head	EP95307777.3	1995-10-31	EP0710563A2	1996-05-08	Sparshott, John Andrew
A construction of dot matrix print head is disclosed in which a plurality of body elements (16), each carrying print wire actuators (22, 23), are arranged in stacked formation. The body elements (16) and the arrangement of actuators 922, 23) is identical so that by offsetting the body elements (16) relative to adjacent body elements (16), print wires (30) actuated by actuators of one body member (16) are inter-digitated with print wires (30) actuated by actuators of a body member (16) adjacent said one body member. This construction permits the actuators to be accommodated in a print head of relatively small transverse dimensions.
63	Wire print head and fabrication process thereof	EP91115670.1	1991-09-16	EP0476559B1	1995-01-11	Andou, Hirokazu, c/o Oki Electric Ind. Co., Ltd.; Kishimoto, Mitsuru, c/o Oki Electric Ind. Co., Ltd; Tatsukami, Masahiro, c/o Oki Electric Ind. Co. Ltd

64	Wire-dot printing head	EP88307773.7	1988-08-23	EP0305137B1	1992-11-04	Kikuchi, Hiroshi; Tanuma, Jiro; Ishimizu, Hideaki; Asaka, Toshiyuki

65	Verfahren zum Herstellen einer Ankerbaugruppe für Matrixdruckköpfe der Klappankerbauart	EP88730171.1	1988-08-01	EP0358833B1	1992-05-20	Gugel, Bernd, Dipl.-Ing. (FH); Stempfle, Johannes, Dipl.-Ing. (FH)

66	Matrixnadeldruckkopf der Klappankerbauart	EP88730170.3	1988-08-01	EP0355239B1	1992-03-11	Gugel, Bernd, Dipl.-Ing. (FH); Stempfle, Johannes, Dipl.-Ing. (FH)

67	Printer head	EP90313117.5	1990-12-03	EP0431876A2	1991-06-12	Kimoto, Gunsei
A printer head consists of a yoke (11), magnet members (12) mounted to the yoke, a base plate (14) attached to the front of the yoke (11), and a plurality of head pins (17) provided between the yoke (11) and the base plate (14). In this printer head, the head pins (17) are arranged in straight rows, which are inclined at a specified angle to the direction of stroke of the printer head. The base plate (14) is formed with a plurality of through- holes (18) at positions corresponding to the head pins so that the head pins can be advanced and retracted through the through-holes (18) by the action of the magnet circuit.
68	Matrixnadeldruckkopf der Klappankerbauart	EP88730170.3	1988-08-01	EP0355239A1	1990-02-28	Gugel, Bernd, Dipl.-Ing. (FH); Stempfle, Johannes, Dipl.-Ing. (FH)
Bei einem Matrixnadeldruckkopf der Klappankerbauart sind jeder Drucknadel (1) ein Anker (4) in einem Nadelführungsgehäuse (9) und in einem Spulenträgergehäuse (14) eine Elektromagnetspule (3) und Magnetjoche (3a,3b) zugeordnet. Um das System der einzelnen Anker (4) und ihrer Lagerung zu verbessern, wird vorgeschlagen, daß sämtliche Anker (4) mittels eines Blechformteils (19;19a) zueinander in Betriebslage gehalten und untereinander verbunden sind und eine Einheit (4,19) bilden, daß diese Einheit (4,19) über mehrere über den Umfang verteilt angeordnete Nocken (25) im Nadelführungsgehäuse (9) zentriert ist und daß Nocken vorgesehen sind, die diese Einheit (4,19) auch im Spulenträgergehäuse (14) zentrieren.
69	Printing apparatus with detachable printhead	US15653800	2017-07-19	US10226933B2	2019-03-12	Masaaki Ishihara
In an embodiment of this invention, a carriage includes a first lever that is operated by an operator to attach or detach a printhead and rotates about a first rotating shaft. The carriage also includes a second lever that rotates about a second rotating shaft parallel to the first rotating shaft and, if the printhead is attached, contacts part of the printhead and presses the printhead in accordance with the rotation. The carriage further includes a spring having one end hung on an end portion of the second lever and the other end hung on part of the carriage. If the printhead is attached, the press force of the spring acts to press the printhead against the carriage in accordance with the rotation of the first lever. If the printhead is detached, no press force acts.
70	Liquid ejecting apparatus	US14713483	2015-05-15	US09248644B2	2016-02-02	Toshinobu Yamazaki
A liquid ejecting apparatus includes a head that ejects an ink from a nozzle opening; a moving unit that moves the head; and a heating unit that sets a temperature of a recording sheet onto which the ink is ejected from the head. Before the head ejects the ink onto the recording sheet, the moving unit is moved, and the head is moved to a position opposing a platen and an upper heater, which is a position to where heat radiated from the heating unit is transferred.
71	Serial recording apparatus and method	US84426	1998-05-27	US6126341A	2000-10-03	Minoru Tanaka; Kiyofumi Koike
A serial recording apparatus is disclosed which is capable of continuously printing even if a dot-forming element (or elements) of the element array of the recording head is defective, by substituting for the defective dot-forming element, a substitution dot-forming element. The serial recording apparatus also automatically detects a defective dot-forming element of the element array of the recording head. In operation, print data of the defective dot-forming element, which loses its dot-forming function, is saved in a second print-data storing device, and a first printing pass is carried out. In the second printing pass, a normal dot-forming element is moved to a location on a recording sheet which would otherwise be subjected to printing by the defective dot-forming element, and reads out the print data from the second print-data storing device to print it on that location.
72	Dot matrix printing head with variable armature abutments	US234064	1994-04-28	US5385415A	1995-01-31	Ettore Quattrini
A dot matrix printing head and related printing apparatus, the print head comprising a plurality of printing electromagnets, each having a magnetic core, an energization winding, a movable armature for actuation of a printing element and a first abutment element defining a first rest position of the armatures, where electrically energizeable means are provided for controlling the position of a second abutment element which defines a second rest position of the armatures, so as to change the air gap width between each armature and the related magnetic core and the stroke of the related printing element, depending on requirement of printing on single copy sheets or multiple copy sheets, and where, in addition to gap adjustment, the duration of the energization time interval of the printing electromagnets, their energization frequency and the advancement speed of the print head relative to a printing medium are modified to achieve the best performances, both when printing on single copy sheet and on multiple copy sheets.
73	Printer with impact dot head	US928522	1992-08-10	US5213423A	1993-05-25	Shigeki Mizuno
An impact dot head for a printer includes a frame and a plurality of printing wires movably supported on the frame in a predetermined array. Each printing wire is bent by a different predetermined amount to be guided when moved. A plurality of armatures are respectively coupled to a respective one of the printing wires for moving the printing wires. A plurality of magnetic cores are respectively associated with each one of the armatures for selectively driving the armatures. Each of the armatures is driven by its respective magnetic core between a rest position and a printing position. A retaining member is supported on the frame and has a plurality of openings each of which is respectfully associated with one of the armatures. A plurality of coil springs each of which is supported in a respective one of the openings normally biases the armatures in the rest position. Each of the openings has a depth corresponding to the amount of bending of the printing wire associated therewith.
74	Structure for mounting printing head	US447289	1989-12-07	US5074688A	1991-12-24	Hiroyuki Sato
A structure for mounting a printing head includes a printing head provided with engaging projections, while a carriage which mounts the printing head is formed with engaging grooves engaging with the projections. Engaging surfaces on the grooves and the projections are subject to the reaction by a platen. The carriage has a lock means for preventing separation of the projections from the grooves, the lock means including a leaf spring, a lock lever and support means.
75	Wire matrix print head assembly	US219989	1988-07-14	US4895464A	1990-01-23	Bernard Rubinshtein
A preferred embodiment of a wire matrix print head assembly 10 is described having a housing 16 supporting a plurality of print wires 22 that are capable of moving between retracted nonprint positions and extended print positions for printing indicia onto a print medium. The assembly has a plurality of electromagnetic actuators associated with corresponding print wires 22 for rapidly driving a selected wire upon energization of corresponding electromagnetic actuator. Each electromagnetic actuator has a yoke 76 with five magnetically interconnected poles 84, 86, 88, 92 and 96 and two electrically interconnected coils 100 and 102 surrounding poles 86 and 92 respectively. Each electromagnetic actuator includes an armature 74 biased against and pivoting about an outer pole 88 to move an inner end against a print wire when the coils 100 and 102 are concurrently energized with the same directional polarity. Coils 100 and 102 are separated by the center pole 84. The coil 102 has a smaller profile than the coil 100 and the armature 74 tapers from the outer end 104 to the inner end 108 to enable the electromagnetic drive elements to be angularly spaced about a center axis in a very compact relationship.
76	Printing head for an impact printer	US194261	1988-05-16	US4844634A	1989-07-04	Juichi Tatsumi
A spring-charge type printing head has an elongatable support including a piezoelectric element provided between an attracting permanent magnet and a hammer-fixing portion. Accordingly, the printing head can be operated at a high speed and require less power than a conventional device.
77	Wire matrix print head	US603232	1984-04-23	US4594010A	1986-06-10	Alex Jachno
A wire matrix print head is disclosed including a plurality of print wires movable through supporting guides between print and non-print positions, springs urging the print wires toward their non-print positions with separate rigid armatures being movable by respective electromagnetic units from a rest position toward a print position for engaging a respective print wire and driving it toward and into its print position. A housing for supporting and accurately positioning the print wires, armatures and electromagnetic units relative to each other includes multiple portions which are interconnected in spaced apart relation about their peripheries in order to establish and maintain accurate positioning of the armatures relative to the respective electromagnetic units and print wires. While one housing portion supports and positions the electromagnetic units, another housing portion provides a pivot precisely spaced apart from an edge of each electromagnetic unit for capturing and permitting pivotable movement of the armatures therebetween. Each armature is engaged by a resilient bushing adjacent its pivot point, the bushing being slightly compressed in order to permit dampened pivoting movement maintain accurate positioning of the respective armature. A reaction element is secured to the housing for establishing a reaction surface for the armatures in order to limit return of the armatures to their rest or non-print positions.
78	Method and apparatus for serial dot printing	US293438	1981-08-17	US4431319A	1984-02-14	Nobuo Karaki; Teruyuki Nakaya
A serial dot printer provides a high quality printed product by printing on demand the same alphanumeric characters and symbols twice with a vertical distance between the first and second printing corresponding to half of the vertical pitch distance of the dots in the first printing. Normal line spacing is provided for both single and double printing.
79	Serial impact printer for multicolor printing	US467337	1983-02-17	US4426168A	1984-01-17	Masao Jozuka; Kazuhiro Ohmura
A serial impact printer capable of performing multicolor printing at high speed. In this printer an inked ribbon divided into multiple colored bands each along the longitudinal direction thereof is arranged to extend and move in a direction intersecting the print line. A print head assembly is provided with print wire units arranged along the print line, as many in number as the number of the colored bands. Each of the print wire units comprises a plurality of print wires and is disposed in opposition to each of the colored bands respectively.In this arrangement and method multicolored impact serial printing can be performed, just as in conventional monocolor impact printing, without any color change motion of the multicolor inked ribbon or of the print head.
80	Serial impact printer having two printing modes	US278033	1981-06-29	US4389126A	1983-06-21	Yoshikiyo Honma; Jun Shimogawara; Muneyoshi Nagata; Yukihiko Oka; Yukiaki Koyanagi; Yukiyoshi Hosoya; Takashi Hada
A serial impact printer has two printing modes, one being a formed-character mode and the other a dot matrix mode. A plurality of dot matrix wires are disposed behind a character carrying member having characters on fingers. One of the wires impacts a selected finger in the formed-character mode. In the dot matrix mode, however, printing is performed by directly contacting a paper with selected ones of said dot matrix wires.

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