US3832719A - Modified diffused ink jet printer - Google Patents

Modified diffused ink jet printer Download PDF

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Publication number
US3832719A
US3832719A US00246192A US24619272A US3832719A US 3832719 A US3832719 A US 3832719A US 00246192 A US00246192 A US 00246192A US 24619272 A US24619272 A US 24619272A US 3832719 A US3832719 A US 3832719A
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US
United States
Prior art keywords
electrode means
common
source
nozzle
document
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
US00246192A
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English (en)
Inventor
J Meier
W Pimbley
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to US00246192A priority Critical patent/US3832719A/en
Priority to GB991573A priority patent/GB1363615A/en
Priority to CA166,917A priority patent/CA973249A/en
Priority to JP48030196A priority patent/JPS5215494B2/ja
Priority to FR7311710A priority patent/FR2180713B1/fr
Priority to DE2318551A priority patent/DE2318551C3/de
Application granted granted Critical
Publication of US3832719A publication Critical patent/US3832719A/en
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
    • 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
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/02—Ink jet characterised by the jet generation process generating a continuous ink jet
    • B41J2/035—Ink jet characterised by the jet generation process generating a continuous ink jet by electric or magnetic field

Definitions

  • Another object of the invention is to provide for selectively controlling different ones of a plurality of closely-spaced ink jet nozzles for printing characters.
  • Yet another object'of the invention is to provide for using a common loop electrode with a plurality of closely-spaced ink nozzles which are conductive and may be selectively grounded or connected to a voltage source.
  • FIG. 1 is a schematic isometric view in part of an ink jet printing system embodying the invention in one of its forms;
  • FIG. 2 is a sectional view in part of the manifold of FIG. 1 taken along the line 22.
  • the reference numeral 10 denotes generally an ink jet matrix printer system which is shown schematically and comprises a manifold structure 12 having a plurality of closely-spaced nozzles Ila-for producing ink jet streams in response to the supply of ink under pressure to the manifold through a terposed between the electrode 16 and the document for preventing dispersed streams from marking the doc ument.
  • the mask may be provided with a plurality of openings 15a-15e aligned with the ink jets for permitting the passage of ink jet streams therethrough.
  • the nozzles 11 may comprise relatively fine tubes or bores connecting with a common plenum chamber 17 and are 'represented by the tubes Ila-11c.
  • the non-conducting tubes Ila-11c may be provided with conducting sleeves 22a-22c at the ends adjacent the plenum chamber, being either separate metal inserts or formed by internal plating of the tubes. These sleeves may be connected together and connected to ground.
  • tubes lla-l lc conducting sleeves represented by the sleeves 24a-24c may be provided, which may also be separately formed or by internal plating of the tubes and which may be selectively connected either to a source of potential or to ground, as by means of individual switches 28a-28e connected to the sleeves by means of conductors 26a-26e, as shown in FIG. 1.
  • the tubes lla-l l should be dimensioned so that with the ink used there is a resistance of 0.1 to I megohm between the sleeves 22 and the sleeves 24. With a ing is not to occur, depending on the time constants of e the system and the desired time on for printing, it may be possible to let the selectively chargeable nozzles float if printing is not to occur.
  • the loop electrode 16 is connected to a source of potential on the order of .500 volts and if it is desired to print dots at 14a, 14c, 14d, Me and 14f but not at 14b, theswitch 28b may be connected to ground while the switches 28a and 28b-28f may be connected to the 500 volt source. Under these conditions the stream from the nozzle llb'will disperse in the area-of the electrode 16, and the shield 15 will prevent thisv stream from marking the document 14. The streams, from the nozzles 11a and 110-1 1 f will continue through the openings 15a and l5c-15fto mark the document 14, as shown at 14a and 14c-e.
  • the manifold 12 can be kept at the high potential and the loop electrode 16 at ground potential as shown by the dotted connectential so that the stream disintegrates at the loop elecconduit 13.
  • the streams are disposed'to provide individual dots on a document 14, represented by the dots:
  • an electrode '16 is provided for effecting dispersal of unwanted streams.
  • the electrode 16 may, for example, comprise parallel plates or a'loop, as shown, connected to a source of electric potential on the order of -500 volts, for example.
  • a mask or shield 15 is introde 16. For printing to occur an individual nozzle will be grounded so that the stream passes intact through the loop electrode 16 and impacts the document 14.
  • the point of drop formation is situated about 1 millimeter in front of the nozzle. Any voltage larger than 90 volts caused the drops to explode. A voltage range of from 100-500 volts was found to be satisfactory.
  • a common manifold structure having a common plenum chamber with means to supply ink thereto under pressure and having a plurality of passages defined by a plurality of non-conducting tubes each connected thereto at one end and having a nozzle at the other end to direct streams of ink toward a document,
  • common electrode means for each of said nonconducting tubes positioned at said common plenum end and connected together to one terminal of a source of electrical potential
  • electrode means individual to each nozzle end comprising a conductive portion at the end of said nozzle away from said manifold and having switch means selectively operable to connect said individual electrode means to the other terminal of said electrical source and to said one terminal,
  • a mask having openings aligned with said nozzles positioned betweensaid single electrode means and said document to permit passage of a nondispersed ink stream.

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  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
US00246192A 1972-04-21 1972-04-21 Modified diffused ink jet printer Expired - Lifetime US3832719A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00246192A US3832719A (en) 1972-04-21 1972-04-21 Modified diffused ink jet printer
GB991573A GB1363615A (en) 1972-04-21 1973-03-01 Ink jet printer
CA166,917A CA973249A (en) 1972-04-21 1973-03-13 Modified diffuser ink jet printer
JP48030196A JPS5215494B2 (ru) 1972-04-21 1973-03-16
FR7311710A FR2180713B1 (ru) 1972-04-21 1973-03-21
DE2318551A DE2318551C3 (de) 1972-04-21 1973-04-12 Tintenstrahlmatrixdrucker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00246192A US3832719A (en) 1972-04-21 1972-04-21 Modified diffused ink jet printer

Publications (1)

Publication Number Publication Date
US3832719A true US3832719A (en) 1974-08-27

Family

ID=22929658

Family Applications (1)

Application Number Title Priority Date Filing Date
US00246192A Expired - Lifetime US3832719A (en) 1972-04-21 1972-04-21 Modified diffused ink jet printer

Country Status (6)

Country Link
US (1) US3832719A (ru)
JP (1) JPS5215494B2 (ru)
CA (1) CA973249A (ru)
DE (1) DE2318551C3 (ru)
FR (1) FR2180713B1 (ru)
GB (1) GB1363615A (ru)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962969A (en) * 1973-12-03 1976-06-15 Oki Electric Industry Company, Ltd. Ink mist type high speed printer
US3975740A (en) * 1973-10-02 1976-08-17 Siemens Aktiengesellschaft Liquid jet recorder
US4325923A (en) * 1978-07-26 1982-04-20 Rhone-Poulenc Industries Contacting of plural phases

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1477435A (en) * 1974-08-23 1977-06-22 Ibm Methods and apparatus for recording information on a recording medium
JPS594310B2 (ja) * 1979-06-30 1984-01-28 株式会社リコー インクジェット記録装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416153A (en) * 1965-10-08 1968-12-10 Hertz Ink jet recorder
US3737914A (en) * 1970-04-02 1973-06-05 C Hertz Liquid jet recorder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416153A (en) * 1965-10-08 1968-12-10 Hertz Ink jet recorder
US3737914A (en) * 1970-04-02 1973-06-05 C Hertz Liquid jet recorder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975740A (en) * 1973-10-02 1976-08-17 Siemens Aktiengesellschaft Liquid jet recorder
US3962969A (en) * 1973-12-03 1976-06-15 Oki Electric Industry Company, Ltd. Ink mist type high speed printer
US4325923A (en) * 1978-07-26 1982-04-20 Rhone-Poulenc Industries Contacting of plural phases

Also Published As

Publication number Publication date
CA973249A (en) 1975-08-19
GB1363615A (en) 1974-08-14
DE2318551A1 (de) 1973-10-25
JPS5215494B2 (ru) 1977-04-30
DE2318551C3 (de) 1979-11-29
DE2318551B2 (de) 1975-05-22
FR2180713B1 (ru) 1974-05-17
JPS4918533A (ru) 1974-02-19
FR2180713A1 (ru) 1973-11-30

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