GB1434522A - Ink jet printers - Google Patents

Ink jet printers

Info

Publication number
GB1434522A
GB1434522A GB3447574A GB3447574A GB1434522A GB 1434522 A GB1434522 A GB 1434522A GB 3447574 A GB3447574 A GB 3447574A GB 3447574 A GB3447574 A GB 3447574A GB 1434522 A GB1434522 A GB 1434522A
Authority
GB
United Kingdom
Prior art keywords
layers
stream
ink
drop
conductive
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
Application number
GB3447574A
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
Publication of GB1434522A publication Critical patent/GB1434522A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/24—Arrangements for measuring quantities of charge
    • 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
    • B41J2/12—Ink jet characterised by jet control testing or correcting charge or deflection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
    • G01R5/28—Electrostatic instruments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Fax Reproducing Arrangements (AREA)

Abstract

1434522 Ink-drop printers INTERNATIONAL BUSINESS MACHINES CORP 6 Aug 1974 [17 Aug 1973] 34475/74 Addition to 1417919 Heading G4H In an ink jet printer, electrical signals are electrostatically induced in a sensor device by passage of a stream of charged ink drops, the sensor device including two conductive elements exposed towards the path of the stream and surrounded by a grounded outer conductive element. The said two conductive elements are connected to respective inputs of an FET operational amplifier which is A.C. coupled to another amplifier which feeds a strobed threshold device the output of which may control synchronization of drop formation with drop charging. The sensor device may consist of a laminated structure of conductive layers interleaved with insulating layers, the conductive layers being an innermost layer forming one of the said two conductive elements, two outermost layers forming the grounded outer conductive element, and two intermediate layers between the innermost and outermost layers forming the second of the said two conductive elements, the ink drop stream passing through a hole in the laminate perpendicular to the layers. A second construction has cylindrical layers, the innermost being a hollow or solid cylindrical rod, this sensor being of the probe type. A third construction is of the probe type, being formed as a planar structure on a substrate. Sensors as above may be used to measure ink stream velocity, to verify and control correct deflection, or to detect stream failure (the unused drops being slightly charged to permit this).
GB3447574A 1973-08-17 1974-08-06 Ink jet printers Expired GB1434522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00389291A US3852768A (en) 1973-08-17 1973-08-17 Charge detection for ink jet printers

Publications (1)

Publication Number Publication Date
GB1434522A true GB1434522A (en) 1976-05-05

Family

ID=23537651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3447574A Expired GB1434522A (en) 1973-08-17 1974-08-06 Ink jet printers

Country Status (7)

Country Link
US (1) US3852768A (en)
JP (1) JPS5247285B2 (en)
CA (1) CA1010491A (en)
DE (1) DE2434759C2 (en)
FR (1) FR2240822B1 (en)
GB (1) GB1434522A (en)
IT (1) IT1012999B (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3907429A (en) * 1974-08-08 1975-09-23 Ibm Method and device for detecting the velocity of droplets formed from a liquid stream
US3911445A (en) * 1974-09-25 1975-10-07 Dick Co Ab Ink drop stream integrity checker in an ink jet printer
JPS54142B2 (en) * 1974-10-31 1979-01-06
US3992713A (en) * 1975-06-20 1976-11-16 International Business Machines Corporation Ink jet printing system with pedestal synchronization
JPS5237431A (en) * 1975-09-19 1977-03-23 Hitachi Ltd Ink sensor for ink jet recording device
US3977010A (en) * 1975-12-22 1976-08-24 International Business Machines Corporation Dual sensor for multi-nozzle ink jet
US4067019A (en) * 1976-06-14 1978-01-03 International Business Machines Corporation Impact position transducer for ink jet
DE2744785B2 (en) * 1977-10-05 1981-05-21 Robert 7995 Neukirch Buck Electronic proximity switch
US4150384A (en) * 1977-10-17 1979-04-17 International Business Machines Corporation Method and apparatus for synchronizing charging of droplets of a pressurized conductive liquid stream
US4171527A (en) * 1978-01-09 1979-10-16 International Business Machines Corporation Ink jet contamination detecting system
DE2905062A1 (en) 1979-02-10 1980-08-14 Olympia Werke Ag Ink jet printer drop speed measurement - by measuring time between pressure generator impulse and drop detection signal
JPS55126915A (en) * 1979-03-22 1980-10-01 Kitani Denki Kk Device for cutting and charging electrec wire
JPS5648966U (en) * 1979-09-21 1981-04-30
US4417256A (en) * 1980-05-09 1983-11-22 International Business Machines Corporation Break-off uniformity maintenance
US4323908A (en) * 1980-08-01 1982-04-06 International Business Machines Corp. Resonant purging of drop-on-demand ink jet print heads
US4333083A (en) * 1980-12-23 1982-06-01 International Business Machines Corporation Electrostatic drop sensor with sensor diagnostics for ink jet printers
EP0070054B1 (en) * 1981-07-10 1987-02-25 Agfa-Gevaert N.V. Method and apparatus of assessing the dynamic surface potential of a solution
JPS58175669A (en) * 1982-04-08 1983-10-14 Konishiroku Photo Ind Co Ltd Mis-jetting detector for ink jet recorder
FR2545041B1 (en) * 1983-04-29 1985-08-02 Imaje Sa DROP LOAD CONTROL DEVICE AND INK SPRAY PRINTER HEAD PROVIDED WITH THE SAME
US4590483A (en) * 1983-04-29 1986-05-20 Imaje S.A. Ink jet printer with charging control of ink-drop flow velocity
ATE36136T1 (en) * 1984-01-20 1988-08-15 Codi Jet Markierungs Systeme G METHOD AND ARRANGEMENT FOR THE INK DELIVERY SYSTEM OF AN INK-JET PRINTER.
DE3505615A1 (en) * 1985-02-19 1986-08-21 Philips Patentverwaltung Gmbh, 2000 Hamburg INFLUENCE PROBE ARRANGEMENT WITH SEVERAL INFLUENCE PROBE
US4688047A (en) * 1986-08-21 1987-08-18 Eastman Kodak Company Method and apparatus for sensing satellite ink drop charge and adjusting ink pressure
FR2636884B1 (en) * 1988-09-29 1990-11-02 Imaje Sa DEVICE FOR MONITORING AND REGULATING AN INK AND ITS TREATMENT IN A CONTINUOUS INK JET PRINTER
US6626513B2 (en) 2001-07-18 2003-09-30 Lexmark International, Inc. Ink detection circuit and sensor for an ink jet printer
US6631971B2 (en) 2001-07-18 2003-10-14 Lexmark International, Inc. Inkjet printer and method for use thereof
US6764168B1 (en) * 2002-03-01 2004-07-20 Novellus Systems, Inc. Sensor for detecting droplet characteristics
RU2212633C1 (en) * 2002-05-27 2003-09-20 ЗАО "Институт электрокаплеструйных технологий" Hydraulic system of electro-droplet-jet printer and its components
US6951379B2 (en) * 2003-04-09 2005-10-04 Hewlett-Packard Development Company, L.P. Print head charge shield
US7091134B1 (en) 2003-06-17 2006-08-15 Novellus Systems, Inc. Deposition of integrated circuit fabrication materials using a print head
GB0320809D0 (en) * 2003-09-05 2003-10-08 Smiths Group Plc Particle detection
US10207505B1 (en) 2018-01-08 2019-02-19 Eastman Kodak Company Method for fabricating a charging device
CN110220421B (en) * 2019-07-22 2021-07-02 太原引卓科技有限责任公司 Method for simultaneously measuring speed, position and number of fragments

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769632A (en) * 1972-12-11 1973-10-30 Ibm Digital phase control for an ink jet recording system

Also Published As

Publication number Publication date
US3852768A (en) 1974-12-03
IT1012999B (en) 1977-03-10
FR2240822A1 (en) 1975-03-14
DE2434759C2 (en) 1983-12-29
DE2434759A1 (en) 1975-02-27
JPS5051227A (en) 1975-05-08
CA1010491A (en) 1977-05-17
JPS5247285B2 (en) 1977-12-01
FR2240822B1 (en) 1976-10-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee