US3790953A - Deflection electrode assembly for an ink jet type printing device and a method for manufacturing the same - Google Patents

Deflection electrode assembly for an ink jet type printing device and a method for manufacturing the same Download PDF

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Publication number
US3790953A
US3790953A US00334924A US3790953DA US3790953A US 3790953 A US3790953 A US 3790953A US 00334924 A US00334924 A US 00334924A US 3790953D A US3790953D A US 3790953DA US 3790953 A US3790953 A US 3790953A
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US
United States
Prior art keywords
electrodes
insulating substrate
paired
deflection
ink
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Expired - Lifetime
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US00334924A
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English (en)
Inventor
Y Sugiya
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.)
Casio Computer Co Ltd
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Casio Computer Co Ltd
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Publication date
Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
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Publication of US3790953A publication Critical patent/US3790953A/en
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    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/075—Ink jet characterised by jet control for many-valued deflection
    • B41J2/08—Ink jet characterised by jet control for many-valued deflection charge-control type
    • B41J2/09—Deflection means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making

Definitions

  • ABSTRACT A deflection electrode assembly for an ink jet type printing device has such a construction that plural X- and Y-axis deflection electrodes etch-formed from an Feb. 28, 1972 Japan 47/20391 electroconductive plate overlie an p i g f an i lating substrate through which ink droplets jetted from US. Cl 346/75, 29/592, 317/3 Int. Cl.
  • G01d 15/16 plural juxtaposed mules can be passed an at a Field of Search 346/75; 29/592; 317/3 3 im 7 Dr wing Figures 13a 13b 13c 140 14C] 14C 14C 1 DEFLECTION ELECTRODE ASSEMBLY FOR AN INK JET TYPE PRINTING DEVICE AND A METHOD FOR MANUFACTURING THE SAME
  • This invention relates to a deflection electrode assembly having plural paired deflection electrodes juxtaposed in the same plane in a manner to correspond to plural nozzles through which ink droplets are jetted, and a method for manufacturing the same.
  • An ink jet type printing device is so designed that ink droplets are jetted from plural nozzles connected to an ink tank utilizing an electrostatic force, accelerated through accelerating electrodes, and deflected through paired X- and Y-axis deflection electrodes by application of voltages corresponding to a character, number etc. so that a desired character, number etc. are printed on a recording paper etc.
  • two electroconductive plates Arranged one behind the other along an ink passage are two electroconductive plates, one for defining paired X-axis deflection electrodes and the other for defining paired Y-axis deflection electrodes. These electroconductive plates are respectively obtained by a one-piece molding. These two electroconductive plates are so positioned that the paired X-axis deflection electrodes of one plate and the paired X-axis deflection electrodes of the other plate are arranged one behind the other along respective ink passageways in a manner to correspond to the respective plural nozzles and a string of characters or numerals is printed all at a time.
  • An object of this invention is to provide a deflection electrode assembly for an ink jet type printing device having many advantages from the standpoint of its manufacture, its construction and its'characteristics, and a method for manufacturing the same. According to this invention the abovementioned drawbacks are all overcome.
  • a deflection electrode assembly for an ink jet printing device can attain its object by attaching overlappingly to an insulating substrate having an opening through which ink droplets jetted from plural nozzles are passed, an electroconductive plate whose etch-formed, paired plural X- and Y'axis deflection electrodes are arranged in the same plane facing the opening of the insulating substrate, in a manner to correspond to the number of the plural nozzles.
  • a method for manufacturing a deflection electrode assembly according to this invention can attain its object by etch-forming plural paired X- and Y-axis deflection electrode sections from an electroconductive plate with the peripheral marginal portions left intact; attaching the electroconductive plate having the etchformed deflection electrode sections overlapping to an insulating substrate having an opening through which ink droplets jetted from plural nozzles can be passed; and cutting apart the opposite peripheral marginal portions of the resultant electroconductive plate-insulating substrate assembly whereby the plural paired X- and Y-axis electrode sections are juxtaposed in the same plane to define ink passageways therearound.
  • FIG. 1 is a schematic diagram showing an arrange ment of an ink jet type printing device using a deflection electrode assembly according to this invention
  • FIG. 2 is a perspective view showing an insulating substrate used in this invention
  • FIG. 3 is a perspective view showing an electroconductive substrate from which plural deflection electrode sections are etch-formed; 7
  • FIG. 4 is an explanatory view showing the manner in which a deflection electrode assembly according to one embodiment of this invention is formed
  • FIG. 5 is a perspective view showing a deflection electrode assembly according to one embodiment of this invention.
  • FIG. 6 is a perspective view showing a deflection electrode assembly according to another embodiment of this invention.
  • FIG. 7 is a perspective view showing a deflection electrode assembly according to a further embodiment of this invention.
  • an ink jetprinting device has a nozzle coupled to an ink reservoir. Though only one nozzle is shown by way of explanation, it should be understood that plural nozzles are arranged in juxtaposition. Droplets of ink jetted from the nozzle are accelerated through an accelerating electrode 3, deflected through a deflection electrode assembly 4 in X- and Y- axis directions so as to correspond to a desired character or numeral, and finally printed on a recording paper. Though only one accelerating electrode is shown for convenience it should be understood that plural accelerating electrodes are arranged in juxtaposition or may be formed in an integral fashion.
  • the deflection electrode assembly is manufactured as follows.
  • an insulating substrate 6 having an opening 7 sufficient to pass therethrough ink droplets jetted from plural nozzles arranged in juxtaposition.
  • plural openings may be provided in the insulating substrate 6 so as to correspond to the plural nozzles.
  • anelectroconductive plate 8 is etched away to provide paired electrode sections 13a, 13b, 13c used as Y-axis deflection electrodes and paired electrode sections 14a, 14b, 14c used as X-axis deflection electrodes, both of which are formed integral with the peripheral marginal portions of the plate.
  • the paired X-axis electrode sections are arranged, in a manner to sandwich the paired Y-axis electrode sections in a spaced apart relationship, to define therebetween plural passageways 15a, 15b, 15c through which ink droplets can be passed.
  • the electroconductive plate is so attached to one surface of the insulating substrate that the ink passageways of the plate all overlie the opening 7 of the substrate. Then, the resultant electroconductive plate insulating substrate assembly is cut along lines A-A and B-B indicated by arrows in FIG. 4 to complete a deflection electrode assembly as shown in FIG. 5. With the above embodiment the electroconductive plate is attached to one surface of the insulating substrate, but it should not be restrictively taken.
  • the electroconductive plate may be attached to both the surfaces of the insulating substrate 6 as shown in FIG. 6.
  • the same reference numerals as employed in FIG. 5 are used to designate corresponding members or elements and any further explanation is, therefore, omitted.
  • the scope of deflection is extended and excellent deflection characteristics are obtained. As a result, a more accurate printing is performed with a clearer definition.
  • the electroconductive plate and insulating substrate are cut apart in the same plane, but only the electroconductive plate may be cut at its opposite longitudinal peripheral marginal portions in a manner that the insulating substrate is left intact as shown in FIG. 7. On those exposed peripheral marginal portions left intact of the insulating substrate a print wire connection may be made. Furthermore, an electrical connection can also be readily effected in connecting each electrode in common.
  • a deflection electrode assembly for an ink jet type printing device comprising an insulating substrate having an opening through which ink droplets from plural nozzles can be passed, a first group of electrodes oppositely facing in pairs at an interval with an ink passageway left therebetween, and a second group of electrodes whose pairs sandwich the paired first electrodes in a spaced apart relationship to define said ink passageway together with the paired first electrodes, said first and second groups of electrodes attached to one surface of the insulating substrate and forming paired vertical and horizontal electrodes corresponding to each of the plural nozzles.
  • a deflection electrode assembly for an ink jet type printing device comprising an insulating substrate having an opening through which ink droplets from plural nozzles can be passed, a first group of electrodes oppo sitely facing in pairs at an interval with an ink passageway left therebetween, a second group of electrodes whose pairs sandwich the paired first electrodes in a spaced apart relationship to define said ink passageway together with the paired first electrodes, said first and second groups of electrodes attached to one surface of the insulating substrate, and third and fourth groups of electrodes attached to the other surface of the insulating substrate and being in a symmetrical relationship to the plane of the insulating substrate, said first and third grouped electrodes and said second and fourth grouped electrodes having a deflection area in a direction of the thickness of the insulating substrate and respectively forming vertical and horizontal deflection electrodes corresponding to each of the plural nozzles.
  • a method for manufacturing a deflection electrode assembly for an ink jet type printing device comprising the steps of l) etch-forming, from an electroconductive plate, paired vertical and horizontal deflection electrode sections arranged in a predetermined interval while leaving the peripheral'marginal portions intact; (2) attaching the electroconductive plate having the paired vertical and horizontal electrode sections etch-formed by l to an insulating substrate having an opening through which ink droplets from plural nozzles can be passed; (3) cutting the opposite peripheral marginal portions of the resultant electroconductive plateinsulating substrate assembly integrally formed by (2) to leave the vertical and horizontal electrode sections of the electroconductive plate, whereby pairs of independent deflection electrodes are formed in a manner to face the opening of the insulating substrate.

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
US00334924A 1972-02-28 1973-02-22 Deflection electrode assembly for an ink jet type printing device and a method for manufacturing the same Expired - Lifetime US3790953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2039172A JPS5343052B2 (ja) 1972-02-28 1972-02-28

Publications (1)

Publication Number Publication Date
US3790953A true US3790953A (en) 1974-02-05

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US00334924A Expired - Lifetime US3790953A (en) 1972-02-28 1973-02-22 Deflection electrode assembly for an ink jet type printing device and a method for manufacturing the same

Country Status (6)

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US (1) US3790953A (ja)
JP (1) JPS5343052B2 (ja)
CA (1) CA969227A (ja)
DE (1) DE2309763C3 (ja)
FR (1) FR2174614A5 (ja)
GB (1) GB1378099A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010477A (en) * 1976-01-29 1977-03-01 The Mead Corporation Head assembly for a jet drop recorder
US4101906A (en) * 1977-04-25 1978-07-18 International Business Machines Corporation Charge electrode assembly for ink jet printer
US5394180A (en) * 1991-05-03 1995-02-28 Imaje S.A. Modular multijet deflection head and manufacturing method
US5512117A (en) * 1992-05-29 1996-04-30 Scitex Digital Printing, Inc. Charge plate fabrication process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5648966U (ja) * 1979-09-21 1981-04-30
JPS60135261A (ja) * 1983-12-23 1985-07-18 Matsushita Electric Ind Co Ltd インクジエツト記録ヘツド
JPH0417547Y2 (ja) * 1986-05-30 1992-04-20

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396457A (en) * 1965-12-02 1968-08-13 Teletype Corp Method of making an electrode structure
US3458761A (en) * 1967-02-13 1969-07-29 Paillard Sa Writing head producing a jet of ink

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396457A (en) * 1965-12-02 1968-08-13 Teletype Corp Method of making an electrode structure
US3458761A (en) * 1967-02-13 1969-07-29 Paillard Sa Writing head producing a jet of ink

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010477A (en) * 1976-01-29 1977-03-01 The Mead Corporation Head assembly for a jet drop recorder
US4101906A (en) * 1977-04-25 1978-07-18 International Business Machines Corporation Charge electrode assembly for ink jet printer
US5394180A (en) * 1991-05-03 1995-02-28 Imaje S.A. Modular multijet deflection head and manufacturing method
US5512117A (en) * 1992-05-29 1996-04-30 Scitex Digital Printing, Inc. Charge plate fabrication process

Also Published As

Publication number Publication date
DE2309763C3 (de) 1975-07-17
GB1378099A (en) 1974-12-18
JPS5343052B2 (ja) 1978-11-16
CA969227A (en) 1975-06-10
DE2309763A1 (de) 1973-09-13
DE2309763B2 (de) 1974-12-05
FR2174614A5 (ja) 1973-10-12
JPS4890256A (ja) 1973-11-24

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