EP0147068A3 - Time of flight measurement for ink jet printers - Google Patents

Time of flight measurement for ink jet printers Download PDF

Info

Publication number
EP0147068A3
EP0147068A3 EP84308201A EP84308201A EP0147068A3 EP 0147068 A3 EP0147068 A3 EP 0147068A3 EP 84308201 A EP84308201 A EP 84308201A EP 84308201 A EP84308201 A EP 84308201A EP 0147068 A3 EP0147068 A3 EP 0147068A3
Authority
EP
European Patent Office
Prior art keywords
time
flight
ink jet
ink
droplets
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.)
Withdrawn
Application number
EP84308201A
Other languages
German (de)
French (fr)
Other versions
EP0147068A2 (en
Inventor
David Evans
Terrence John Klee
Raymond Paris
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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of EP0147068A2 publication Critical patent/EP0147068A2/en
Publication of EP0147068A3 publication Critical patent/EP0147068A3/en
Withdrawn legal-status Critical Current

Links

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
    • B41J2/07—Ink jet characterised by jet control
    • B41J2/125—Sensors, e.g. deflection sensors

Landscapes

  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

Apparatus for giving an indication of the time of flight of the ink stream of an ink jet printer comprises detector means (16) towards which one or more selected droplets of the ink stream may be directed by a deflection system comprising charging electrode (5) and deflecting electrodes (8). The detector means detects the presence of the selected droplets to give an indication of the time of flight of the said droplets.
The time of flight may be calculated and displayed, or employed to control printing paramaters such as ink supply pressure, deflecting charge or the rate at which items to be printed are conveyed past the printer. The time of flight also acts as a useful "state of health" monitor, to detect blockages or other malfunctions of the printer.
EP84308201A 1983-12-21 1984-11-27 Time of flight measurement for ink jet printers Withdrawn EP0147068A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8334038 1983-12-21
GB08334038A GB2154321A (en) 1983-12-21 1983-12-21 Time of flight measurement for ink jet printers

Publications (2)

Publication Number Publication Date
EP0147068A2 EP0147068A2 (en) 1985-07-03
EP0147068A3 true EP0147068A3 (en) 1986-01-29

Family

ID=10553632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84308201A Withdrawn EP0147068A3 (en) 1983-12-21 1984-11-27 Time of flight measurement for ink jet printers

Country Status (4)

Country Link
EP (1) EP0147068A3 (en)
JP (1) JPS60157877A (en)
AU (1) AU3661484A (en)
GB (1) GB2154321A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH061413Y2 (en) * 1986-12-27 1994-01-12 大日本印刷株式会社 Thermal transfer recorder
CA2049454C (en) * 1990-10-18 1999-01-05 Michael E. Stamer Automatic character height control for ink jet printers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465351A (en) * 1968-03-13 1969-09-02 Dick Co Ab Ink drop writing apparatus
US4063253A (en) * 1975-03-10 1977-12-13 Hitachi, Ltd. Ink jet recording apparatus
EP0039772A1 (en) * 1980-05-09 1981-11-18 International Business Machines Corporation Multinozzle ink jet printer and method of operating such a printer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787882A (en) * 1972-09-25 1974-01-22 Ibm Servo control of ink jet pump
US3836912A (en) * 1972-12-11 1974-09-17 Ibm Drop charge sensing apparatus for an ink jet printing system
US3886564A (en) * 1973-08-17 1975-05-27 Ibm Deflection sensors for ink jet printers
US3977010A (en) * 1975-12-22 1976-08-24 International Business Machines Corporation Dual sensor for multi-nozzle ink jet
US4217594A (en) * 1977-10-17 1980-08-12 International Business Machines Corporation Method and apparatus for determining the velocity of a liquid stream of droplets
US4136345A (en) * 1977-10-31 1979-01-23 International Business Machines Corporation Object deflection sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465351A (en) * 1968-03-13 1969-09-02 Dick Co Ab Ink drop writing apparatus
US4063253A (en) * 1975-03-10 1977-12-13 Hitachi, Ltd. Ink jet recording apparatus
EP0039772A1 (en) * 1980-05-09 1981-11-18 International Business Machines Corporation Multinozzle ink jet printer and method of operating such a printer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 16, no. 3, August 1973, page 880, Armonk, New York, US; G.J. FAN: "Phase detection on ink jet droplets" *

Also Published As

Publication number Publication date
EP0147068A2 (en) 1985-07-03
JPS60157877A (en) 1985-08-19
AU3661484A (en) 1985-12-05
GB2154321A (en) 1985-09-04
GB8334038D0 (en) 1984-02-01

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19860930

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PARIS, RAYMOND

Inventor name: EVANS, DAVID

Inventor name: KLEE, TERRENCE JOHN