EP0423910B1 - Drucker, insbesondere Matrixnadeldrucker - Google Patents

Drucker, insbesondere Matrixnadeldrucker Download PDF

Info

Publication number
EP0423910B1
EP0423910B1 EP90250223A EP90250223A EP0423910B1 EP 0423910 B1 EP0423910 B1 EP 0423910B1 EP 90250223 A EP90250223 A EP 90250223A EP 90250223 A EP90250223 A EP 90250223A EP 0423910 B1 EP0423910 B1 EP 0423910B1
Authority
EP
European Patent Office
Prior art keywords
printer
guide
drive motor
frame
printer according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90250223A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0423910A2 (de
EP0423910A3 (en
Inventor
Ulrich Buschmann
Günter Gomoll
Wolfgang Hauslaib
Alfred Babsch
Alois Hoffart
Werner Rupp
Jutta Stein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of EP0423910A2 publication Critical patent/EP0423910A2/de
Publication of EP0423910A3 publication Critical patent/EP0423910A3/de
Application granted granted Critical
Publication of EP0423910B1 publication Critical patent/EP0423910B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework

Definitions

  • the invention relates to a printer, in particular a dot matrix printer, with a frame on which a pressure abutment extends in the longitudinal direction and opposite this there is a longitudinal guide for a carriage with a print head, with a paper guide for single sheets and / or an endless paper web, each by means of drive motors are drivable and controllable, the frame being enclosed by a two-part or multi-part plastic housing.
  • printers In most cases, such printers have a metallic base frame and a two-part or multi-part plastic housing.
  • the printer width is determined by the predetermined length of the platen and by the path of the printhead, which has to travel approximately the full length of the platen. This path is tailored to the printable width of the paper to be processed.
  • the invention is therefore based on the object of being able to produce printers very simply and economically for different paper widths.
  • the task is solved according to the invention in that the frame at the end of the paper guide or the pressure abutment or the longitudinal guide for the print head carriage forms a separate space in which at least one circuit board for the electronics , an interface board and the paper guide drive motor and the print head carriage drive motor are arranged.
  • the advantage is that, in terms of production technology, all lengths of the pressure abutment, the longitudinal guide and the guide rods and axes that are suitable for this are simply lengthened or shortened in order to achieve a printer for a predetermined paper width. At the same time, the shortest possible connection lines result among the electrical or electronic assemblies.
  • the stated object is also achieved according to the invention in that all parts of the printer frame, with the exception of metallic guide rods and axles, are made of plasticizable plastics and that all electrical or electronic components and their connecting elements are in a separate room are arranged.
  • all parts of the printer frame with the exception of metallic guide rods and axles, are made of plasticizable plastics and that all electrical or electronic components and their connecting elements are in a separate room are arranged.
  • the two solutions can be improved by shielding the separated space against interference radiation by means of a sheet metal housing that shields outwards.
  • the two solutions are further developed by providing a frame wall made of electrically conductive plastic facing the paper guide or the pressure abutment or the longitudinal guide for the print head carriage, in which guide rods, axles and the like. are electrically conductive and the pressure abutment are mounted.
  • a service simplification is that the interface board can be removed or reinserted in the lateral direction or to the rear along a guide.
  • a more favorable division of space of the separated space is also achieved in that the electrical line connections for the paper guide drive motor or for the carriage drive motor are led to a circuit board arranged in the region of the side wall of the separated space for the power electronics.
  • the network connection part is located on the back of the separated room. It is therefore outside the paper guideway and is easier to access than before even when the paper web is drawn in.
  • control panel is arranged on the side of the shielded room.
  • the shortest possible connection and supply lines also result here.
  • buttons of the control panel protrude through openings in the removable plastic housing.
  • a (serial) matrix printer of the needle print head type is shown as the printer.
  • the invention can be applied to many types of printers regardless of the principle of dot-matrix printing.
  • the printer has a frame 1 made of metal or plastic, on which a pressure abutment 3 extends in the longitudinal direction 2 and, parallel to this, a longitudinal guide 4, consisting of a guide rod 5 and an axis 6 for a print head carriage 7 with a print head 8 .
  • a paper guide 9 for single sheets and such a paper guide 9a for continuous paper webs are provided.
  • the paper guides 9 and 9a can be driven and controlled by means of a paper guide drive motor 10 and a print head carriage drive motor 11.
  • the entire unit with the frame 1 is enclosed in a two-part plastic housing 12 and keeps dust and dirt away from the interior and isolates pressure noises from the inside out.
  • the frame 1 is then formed at the end 13 of the paper guides 9, 9a or at the end of the platen 3 or the longitudinal guide 4 for the print head carriage 7 as a separate space 14.
  • At least one circuit board for the control electronics 15, an interface circuit board 16 and the paper guide drive motor 10 and the print head carriage drive motor 11 are arranged in this special space 14.
  • All parts of the frame 1 with the exception of metallic guide rods 5 and axes 6 are made of plasticizable plastics. All electrical or electronic components and their Connecting elements are arranged in the separated room 14.
  • the space 14 is surrounded by a sheet metal housing 17.
  • the sheet metal housing 17 advantageously has a removable sheet metal cover 17a (FIG. 4).
  • the interface board 16 can be easily removed together with its plug contact strip 18.
  • One of the paper guides 9, 9a or the pressure abutment 3 or the longitudinal guide 4 for the print head carriage 7 facing the frame wall 1a is made of electrically conductive plastic (carbon fiber).
  • the guide rod 5 and the axis 6 are mounted in an electrically conductive manner in this frame wall 1a.
  • the pressure abutment 3 is also mounted in this frame wall 1a (electrically conductive).
  • the electrical conductivity is used to derive electrostatic voltages that could affect the operating personnel.
  • the room 14 shielded against interference radiation is divided into different floors 19 and 20, of which the upper floor 19 (FIG. 2) is formed from the boards for the control electronics 15 and the interface 16 and the lower floor 20 and others. is represented by the paper guide drive motor 10 and the print head carriage drive motor 11 (Fig. 3).
  • the control logic board 15 and the interface board 16 are mechanically and electronically connected to one another by a connecting plug 21 (FIG. 2).
  • the interface board 16 can, as shown in FIG. 2 by a position shown in dashed lines, be pulled laterally to the left first of a pawl 22 against a spring arm 24 and then from the connector 21 and further from a guide 23, which the spring arm 24 for Has releasable locking.
  • the interface board 16 carries components, such as an EPROM 25, which contains a control program.
  • the remaining components 26 to 34 form the necessary modules for the interface functions.
  • the paper guide drive motor 10 is mounted on the frame wall 1a made of electrically conductive plastic.
  • the electrical line connections 34a and 35 for the paper guide drive motor 10 and the electrical line connections 36 and 37 are led to a circuit board 38 for the power electronics.
  • This power electronics board 38 is arranged on the outside of the separated space 14 under the sheet metal housing 17. Components such as a capacitor 39, memory chips 40, 41, driver chips 42 and the like are on the circuit board 38. intended.
  • a mains connection part 43, a mains switch 44 and a mains plug 45 are located on the rear side 46 of the separated room 14.
  • the plug contact strip 18 for the interface board 16 and the power cable 47 are also located on the rear side 46 of the separated space 14 and are therefore all freely accessible even when the paper web is inserted.
  • a control panel 48 is arranged on the side of the shielded room 14 so that the control panel 48 can be located on the right or left of the printer.
  • buttons 49 of the control panel 48 are guided through openings 50 of the removable plastic housing 12 and project accordingly, although on the lower floor 20 (FIG. 3) a mains transformer 51, the paper guide drive motor 10 and the print head carriage drive motor 11 are regarded as heat dissipation Need to become, sufficient heat can be dissipated to the environment outside the plastic housing 12 without forced ventilation through the highly heat-conductive sheet metal housing 17.
  • the sheet metal housing 17 is also designed as a base plate (FIG. 4) and is in contact with the otherwise U-shaped jacket plate, the two legs of which form the front 52 and the rear 46 (FIG. 3).
  • the sheet metal housing 17 is also equipped with bending protrusions 52a and 52b. 5 and 6, the individual button assemblies 53 and the support plate 54 receiving the buttons are also visible.

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP90250223A 1989-10-16 1990-09-06 Drucker, insbesondere Matrixnadeldrucker Expired - Lifetime EP0423910B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3934792 1989-10-16
DE3934792A DE3934792A1 (de) 1989-10-16 1989-10-16 Drucker, insbesondere matrixnadeldrucker

Publications (3)

Publication Number Publication Date
EP0423910A2 EP0423910A2 (de) 1991-04-24
EP0423910A3 EP0423910A3 (en) 1991-10-16
EP0423910B1 true EP0423910B1 (de) 1994-03-23

Family

ID=6391729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250223A Expired - Lifetime EP0423910B1 (de) 1989-10-16 1990-09-06 Drucker, insbesondere Matrixnadeldrucker

Country Status (5)

Country Link
US (1) US5152624A (https=)
EP (1) EP0423910B1 (https=)
JP (1) JPH03133680A (https=)
AT (1) ATE103243T1 (https=)
DE (3) DE3943567A1 (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5863141A (en) * 1996-07-22 1999-01-26 Hewlett-Packard Company Image-related device with printed-circuit assembly cantilevered from sheet-metal base & with clip fastenings
US6357859B1 (en) * 1997-09-23 2002-03-19 Eastman Kodak Company Printer and method with an electromagnetic-inhibiting optical data link transmitting image forming data
FR2845943B1 (fr) * 2002-10-19 2005-02-11 Denis Montagutelli Imprimante modulaire pour, a partir d'une imprimante de base, composer une imprimante de bureau, et/ou de panneau et/ou portable
US7938531B2 (en) 2006-09-27 2011-05-10 Lexmark International, Inc. Methods and apparatus for handheld printing with optical positioning
US7748840B2 (en) * 2006-09-27 2010-07-06 Lexmark International, Inc. Methods and apparatus for handheld printing with optical positioning
US7918519B2 (en) 2006-09-27 2011-04-05 Lexmark International, Inc. Methods and apparatus for handheld printing with optical positioning
US8092006B2 (en) 2007-06-22 2012-01-10 Lexmark International, Inc. Handheld printer configuration
US20090040286A1 (en) * 2007-08-08 2009-02-12 Tan Theresa Joy L Print scheduling in handheld printers
JP5939089B2 (ja) * 2012-08-31 2016-06-22 セイコーエプソン株式会社 インクジェット記録装置

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2136806A1 (de) * 1971-07-23 1973-02-01 Olympia Werke Ag Gehaeuse fuer schreib-, buchungs- oder aehnliche maschinen
DE2203981C3 (de) * 1972-01-28 1975-12-04 Olympia Werke Ag, 2940 Wilhelmshaven Verkleidung für Schreib- und ähnliche Büromaschinen
DE2335735A1 (de) * 1973-07-13 1975-01-30 Forster Electronic Gmbh Textbearbeitungsgeraet fuer fernsteuerbare schreibmaschinen
DE7927378U1 (de) * 1979-09-27 1980-01-24 Triumph Werke Nuernberg Ag, 8500 Nuernberg Gestell fuer schreib- o.ae. maschinen
US4370515A (en) * 1979-12-26 1983-01-25 Rockwell International Corporation Electromagnetic interference
IT1144422B (it) * 1981-07-23 1986-10-29 Olivetti & Co Spa Dispositivo per schermare circuiti elettrici
US4527285A (en) * 1982-03-29 1985-07-02 International Business Machines Corporation Pluggable terminal architecture
US4549825A (en) * 1983-02-08 1985-10-29 Post Technologies, Inc. Thermal printer for a low cost electronic mail terminal
JPS6019577A (ja) * 1983-07-14 1985-01-31 Matsushita Electric Ind Co Ltd 印字装置
DK445184D0 (da) * 1984-09-18 1984-09-18 Storno As Elektronisk apparat, elektronisk komponent samt fremgangsmaade til fremstilling af et saadant apparat og en saadan komponent
US4732502A (en) * 1984-11-19 1988-03-22 Brother Kogyo Kabushiki Kaisha Printer
US4730947A (en) * 1985-08-19 1988-03-15 Citizen Watch Co., Ltd. Printer having a control circuit section of cassette type
JPS63139774A (ja) * 1986-12-02 1988-06-11 Brother Ind Ltd プリンタ
DE3752179T2 (de) * 1986-12-10 1998-08-20 Canon Kk Aufzeichnungsgerät und Entladungsregeneriermethode
US4883376A (en) * 1987-01-06 1989-11-28 Brother Kogyo Kabushiki Kaisha Data processing apparatus with CRT and printer
JPS63108752U (https=) * 1987-01-06 1988-07-13
JPS63183868A (ja) * 1987-01-27 1988-07-29 Tokyo Electric Co Ltd 印字装置
JPS63197682A (ja) * 1987-02-13 1988-08-16 Hitachi Ltd パ−ソナルワ−ドプロセツサ
JP2613431B2 (ja) * 1988-05-18 1997-05-28 キヤノン株式会社 シリアル記録装置
US4881839A (en) * 1988-06-14 1989-11-21 Texas Instruments Incorporated Portable electronic data handling/data entry system
JP3082348B2 (ja) * 1991-09-13 2000-08-28 株式会社ユアサコーポレーション ニッケル−水素電池

Also Published As

Publication number Publication date
US5152624A (en) 1992-10-06
DE3934792A1 (de) 1991-04-25
ATE103243T1 (de) 1994-04-15
JPH03133680A (ja) 1991-06-06
EP0423910A2 (de) 1991-04-24
DE3943567A1 (de) 1991-06-20
DE59005089D1 (de) 1994-04-28
EP0423910A3 (en) 1991-10-16
DE3934792C2 (https=) 1991-09-12

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