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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
41	Impact head and printing apparatus	US12379339	2009-02-19	US08366334B2	2013-02-05	Tetsuya Kitabatake
An impact head includes an arm member moving to a protruding position when a magnetic flux is generated and to a return position when the magnetic flux disappears; an impact member connected to the arm member for protruding when the arm member moves to the protruding position and returning to an original position when the arm member moves to the return position; and an urging member for urging the arm member with a restricted urging force when the magnetic flux is generated and urging the arm member to the return position when the magnetic flux disappears.
42	Serial printer which provides acceleration control of carrier	US261332	1999-03-03	US6139205A	2000-10-31	Hisao Suzuki; Hiromoto Ishii; Akira Oda; Eiichi Furuya
A serial printer apparatus comprises a print heat for printing on a medium according to a received character signal, a carrier on which the print head is provided and which runs the print head over an unprintable region and a printable region, and a control circuit for monitoring the running speed of the carrier and controlling the speed of the carrier by accelerating or decelerating the carrier while suppressing the amount of fluctuation of the speed at least in the printable region.
43	Method and apparatus for securely printing a machine detectable postal indicia image	US579501	1995-12-27	US5806421A	1998-09-15	Donald T. Dolan; Joseph L. Gargiulo; David W. Hubbard; Charles F. Murphy, III
A method for printing a postal indicia on a mailpiece includes moving a printing mechanism and the mailpiece relative to each other during a plurality of passes; and printing with the printing mechanism at least a corresponding portion of the postal indicia during each of the plurality of passes, each of the corresponding portions being in overlapped relationship to the other corresponding portions so that the combined effect of the corresponding overlapped portions is a postal indicia which is detectable by a facer/canceler machine as a valid postal indicia. Furthermore, during no more than one of the plurality of passes is its corresponding portion of the postal indicia detectable by the facer/canceler machine as the valid postal indicia. An apparatus incorporates the above method.
44	Method for the manufacture of an armature assembly for matrix print heads of the hinged-clapper-armature construction	US387501	1989-07-28	US5175922A	1993-01-05	Bernd Gugel; Johann Stempfle
A method for production of an armature device group for matrix print heads of the clapper-armature construction is based on connecting and jointly processing prefabricated parts (1, 2) such that elongated armatures with wide armature arms (4) and narrower armature arms (5) are generated. For further decreasing the production costs and for increasing the precision of the armature coordination, for facilitating mounting and for saving assembly steps, an armature circle (1) is punched out with openings (6). An annular elastic shaped plate (2) of sheet metal is then attached covering the opening (6) and the radially outer and radially inner armature arms (4, 5) are then cut out employing a method such as thermal cutting or, respectively, water-torch cutting, without damaging of the shaped plate (2).
45	Dot printer head	US707900	1991-05-30	US5096313A	1992-03-17	Masami Horii
A dot printer head including a housing that contains electromagnets toward its back end, the electromagnets having cores positioned opposite to armatures which are supported detachably against the core. The housing slidingly supports needles connected to the armatures and pushed in retracting direction thereof. An armature stopper made of an elastic substance is fixedly attahced to the inside of a cover which closes the opening at the back end of the housing, the armature stopper being in contact with the vicinities of the free ends of the armatures. A spacer is made of a substance with a linear expansion coefficient such as to ensure the same expansion as that of the armature stopper in thickness, the spacer connecting the inside of the cover to the opening edge of the housing. In this setup, when the armature stopper extends in thickness in keeping with the temperature rise inside the housing during printing, the spacer expands by exactly the same thickness to retract the cover. This allows the armatures to return always to the same position.
46	Matrix pin-print head of the hinged-clapper-armature construction	US387607	1989-07-28	US5039239A	1991-08-13	Bernd Gugel; Johann Stempfle
An armature (4) is coordinated to each print pin (1) with a pin guide case (9) and in a coil support case (14) an electromagnetic coil (3) and magnet yokes (3a, 3b) in a matrix pin print head. In order to improve the system of the individual armatures (4) and their support, all armatures (4) are maintained in operations with a shaped sheet metal (19, 19a) and are connected thereby to each other and thereby form a unit (4, 19). Thus unit (4, 19) is centered via in the pin guide case (9) via several cogs (25), distributed over the circumference, and cogs are provided, which center this unit (4, 19) also in a coil support case (14).
47	Printer having means for identifying print head type	US141221	1988-01-06	US4930915A	1990-06-05	Hiroshi Kikuchi; Jiro Tanuma; Hideaki Ishimizu; Tadashi Kasai
A printer includes identification circuitry disposed in a print head for identifying the type of the print head loaded on a carriage portion for printing characters on a print paper, and head connectors disposed on the carriage portion for enabling a plurality of different types of print heads to be commonly connected with a drive circuit and a control portion. The control portion is operative to identify the type of the loaded print head on the basis of the content of the identification circuitry, and also to perform controlling of the drive circuit under certain controlling conditions corresponding to the type of thus identified print head.
48	Printers	US356320	1982-03-09	US4444519A	1984-04-24	Fred M. Howell; Theodore J. Goodlander; Duarte M. Brazao
A printer capable of operation as a dot matrix printer, and, alternatively, as a daisy wheel printer, the printer including the carriage providing for the mounting of a daisy wheel and associated hammer solenoid or a dot matrix printhead, the carriage including a diasy wheel drive mechanism and means for automatically selecting a mode of operation consistent with the mode of printing desired.
49	Printer head for serial dot printer	US241054	1981-03-06	US4368353A	1983-01-11	Hirokazu Ando; Yasuo Ohmori; Kazumasa Fukushima; Mitsuo Iwama; Tsunematsu Takahashi
A high operational speed print head for mosaic printing is provided which has a plurality of print needles positioned on a straight line, each being selectively driven toward a piece of paper through an ink ribbon. The printer head comprises a cylindrical permanent magnet ring magnetized in the axial direction; a circular bottom plate covering the bottom of the permanent magnet; and a plurality of electromagnets each having a center core and a coil wound around the core positioned on a circle on said bottom plate so as to be surrounded by the permanent ring magnet. A yoke provides a closed magnetic path with the permanent ring magnet, the bottom plate and each of the electromagnets. A plurality of moving bodies equal in number to the number of electromagnets are provided, each having at least an elongated armature overlying the core of the related electromagnet and composing a part of said closed magnetic path. A leaf spring supports the armature and is fixed to the yoke, and a print needle is mounted perpendicular to the elongated armature.
50	Matrix printer with automatic printing head adjustment	US266570	1981-05-22	US4365901A	1982-12-28	Lothar Haubrich; Heinrich Durr
A matrix printer with a printing head which is displaceable along a paper guide in the line direction and which has a number of printing elements which have a first printing position for printing from left to right and a second printing position for printing from right to left. The printing head with its printing elements is automatically moved from the one printing position to the other printing position by variation of the impulse of movement of the printing head upon each movement reversal of the printing head by means of a position changer which is displaceable with respect to the printing head.
51	Matrix print head assembly	US809423	1977-06-23	US4230038A	1980-10-28	Donald G. Hebert
A wire matrix print head assembly in which armatures are mounted between pairs of magnetic pole members and wire printing members with coplanar radially spaced pole member end surfaces facing the direction of movement of the armatures and the wire printing members during printing movement from a non-print position to a print position and the pole member end surfaces providing a first radially innermost pivotal support means engageable with the armature members only during an initial portion of the armature movement and also providing a second radially outermost pivoted support means engageable with the armature members only during a terminal portion of the armature movement.
52	Position sensing for matrix printer	US869890	1978-01-16	US4208137A	1980-06-17	Chih H. Liu
An alternating current coupled dot column sensing circuit provides delayed dot position signals for control logic of a matrix printer to actuate the printing elements at the proper dot column positions in bi-directional printing. A sensor recognizes edges of slots in a timing strip across the printer and also recognizes end or home positions of the strip for use in such printing.
53	Web feed, web cutting and ribbon feed means for a stationery mosaic printer	US745827	1976-11-29	US4165191A	1979-08-21	Stanley J. Dickson; Albert E. Castleton
This invention is concerned with a mosaic printer, for example, of the needle print head type which comprises a stationary print head and means for feeding an article, for example a web of paper to be printed, in a direction orthogonal to a row of print devices of the head and in synchronism with operation of the print devices so that, by selective operation of the print devices, the article is provided by the print devices with a pattern which constitutes visual data.
54	Random access line printer	US476581	1974-06-05	US3970183A	1976-07-20	Prentice Robinson; Paul S. Ramsden, Jr.
An impact printer of the dot matrix type capable of printing in either the forward or reverse direction. Means are provided for determining the position of the print head at any given instant. Upon completion of a line of print the print head is abruptly halted. The next line of characters is examined to determine the end points of its character field. Comparisons are made to determine whether the print head lies within or beyond the end points. In cases where the print head lies beyond the end points of the character field, the printing occurs by moving the head in a direction toward the closest end point and then printing. If the print head occupies the location between the end points the position of the head is loaded into a pair of counters which are simultaneously counted up and down respectively. The outputs of the counters are continuously compared against the values representing the end point locations whereupon the first favorable comparison determines the shortest distance of print head travel for starting printing. High speed electronic circuitry is provided for storing data representing the next line to be printed in both forward and reverse formats whereupon the decision as to the direction in which data is printed automatically controls the appropriate storage medium.Novel video detection means is provided both for determining the direction of head movement at any instant and for controlling the printing positions. The use of delayed strobes derived directly from the video control allows printing to start immediately from the rest position, and provides accurate registration of delayed strobes relative to strobe pulses regardless of the velocity of the carriage.The printer has the ability of printing expanded characters and includes electronic circuitry to prevent data in the expanded character format from being lost in cases where the inputted data representing the expanded character format exceeds the print line capacity of the printer whereby any overflow will automatically be printed on the second succeeding line of print.
55	Wire recording and mechanism therefor	US3715020D	1970-09-21	US3715020A	1973-02-06	NORDIN R
A flexible wire with an input end and an output end extends through an arcuately bent tubular guide that has an input end portion, an output end portion and an arcuate connecting section. The output end portion of the guide is relatively secured. Its input end portion is mounted for movement longitudinally of the guide. A restraint is arranged about the input end portion of the guide and has a first condition in which said input end portion is secured from moving and a second condition in which the output end portion is free from restraint to permit guide movement. The wire and guide are proportioned such that a force applied to the input end of said wire axially thereof will (1) cause the wire to slide through and thereby project the output end of said wire from the output end portion of the guide, if the restraint is in said first condition; and (2) cause the guide to extend at its arcuate section in a direction away from the output end of said wire in consequence of frictional coupling of the guide and wire, if the restraint is in said second condition. This switching phenomenon is employed in a recorder having means for applying an oscillating force simultaneously to an input end of each wire in an array of flexible wires which respectively are arranged through arcuately bent flexible tubular guides. The input end portion of each guide is arranged for selective restraint, and release from restraint, in a fixed position such that: 1. WHEN RESTRAINED, A RIGID PATH IS PROVIDED FOR THE ASSOCIATED WIRE BY SUCH GUIDE AND, ALTERNATELY DURING RESPECTIVE PHASES OF EACH OSCILLATORY CYCLE, THE OUTPUT END OF THE WIRE WILL BE (A) FIRST PROJECTED FROM THE OUTPUT END PORTION OF THE GUIDE INTO PRINTING POSITION RELATIVE A RECORD CARRIER, AND (B) THEN WITHDRAWN; AND 2. WHEN FREE OR RELEASED FROM RESTRAINT, ALTERNATELY DURING RESPECTIVE PHASES OF EACH OSCILLATORY CYCLE, SUCH GUIDE AND ITS ASSOCIATED WIRE (A) FIRST BECOME FRICTIONALLY COUPLED AND BEND TO CAUSE ELONGATION OF INTERMEDIATE PORTIONS THEREOF WHICH ARE REMOTE FROM THE OUTPUT END OF THE WIRE, THEREBY TO PREVENT ITS PROJECTION INTO PRINTING POSITION, AND (B) THEN RETURN TO ORIGINAL POSITION. A character generator produces effects which are representative of the characters to be reproduced. It is coupled to restraining assemblies for the guides, whereby, simultaneously in one phase of each oscillatory cycle, selected wires will be projected for printing and the remaining wires will be prevented from printing.
56	System and method for printing alpha-numerics and graphics	US3711646D	1971-01-25	US3711646A	1973-01-16	VERMILION E; SEELEY E; LEFCORT M
System and method for handling a plurality of electronic signals representing both alpha-numeric characters and graphics data. The coded alpha-numeric bits are directed to a decoder for conversion to a dot matrix and then to a writing head for printing on electrosensitive paper. The coded graphics bits are not relayed to the decoder but instead are transmitted to the writing head for direct print out on the electrosensitive paper. A control circuit monitors the incoming bit stream to shift the terminal between alpha-numeric and graphics printing as the arriving data pulses require.
57	Serial character matrix page printer	US3426880D	1967-04-14	US3426880A	1969-02-11	BLODGETT EDWIN O

58	High speed printer with magnetostrictive impression members	US14144361	1961-09-28	US3151543A	1964-10-06	MAX PREISINGER

59	Character wire printer	US9896361	1961-03-28	US3082687A	1963-03-26	BLODGETT EDWIN O; STIFFLER HAROLD F

60	Apparatus for printing characters	US15221237	1937-07-06	US2129065A	1938-09-06	LOOP JOSEPH N

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