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WO1990010540A1 - Procede et dispositif pour l'optimisation des impulsions d'impression dans les imprimantes a jet d'encre fonctionnant au moyen de convertisseurs thermiques - Google Patents

Procede et dispositif pour l'optimisation des impulsions d'impression dans les imprimantes a jet d'encre fonctionnant au moyen de convertisseurs thermiques Download PDF

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Publication number
WO1990010540A1
WO1990010540A1 PCT/EP1990/000141 EP9000141W WO9010540A1 WO 1990010540 A1 WO1990010540 A1 WO 1990010540A1 EP 9000141 W EP9000141 W EP 9000141W WO 9010540 A1 WO9010540 A1 WO 9010540A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink
temperature
tfl
pulse
tdk
Prior art date
Application number
PCT/EP1990/000141
Other languages
German (de)
English (en)
Inventor
Ernst Goepel
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1990010540A1 publication Critical patent/WO1990010540A1/fr

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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
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04541—Specific driving circuit
    • 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
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04553—Control methods or devices therefor, e.g. driver circuits, control circuits detecting ambient temperature
    • 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
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04563—Control methods or devices therefor, e.g. driver circuits, control circuits detecting head temperature; Ink temperature
    • 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
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/0458—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on heating elements forming bubbles
    • 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
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/0459—Height of the driving signal being adjusted
    • 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
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04591—Width of the driving signal being adjusted
    • 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
    • B41J2/17—Ink jet characterised by ink handling
    • B41J2/195—Ink jet characterised by ink handling for monitoring ink quality

Definitions

  • the invention relates to a method and a device
  • DE-OS 30 12 698 have a plurality of individual nozzles from which defined droplets are ejected under the action of an electronic control.
  • Individual capillary ink channels are assigned to the individual nozzles, in which pressure waves are generated in the ink liquid by means of actuators.
  • an electro-thermal converter element in the form of an electrical thin-film heating resistor, which is excited with a voltage rectangular pulse.
  • Thin film heating resistors are produced, there is a functional Relationship between the electrical pulse energy and the pressure pulse required to eject individual droplets.
  • the pulse energy is determined by that of the
  • Transducer element applied pulse voltage, by the electrical resistance of the transducer element (dot resistance) and by the pulse duration of the applied voltage.
  • the pulse energy must not fall below a predetermined value and on the other hand the heating of the ink print head due to the thermal converter principle should not be increased by unnecessarily high pulse energy.
  • the invention is therefore based on the object of specifying measures for optimizing the pressure pulses for the electrothermal transducer elements in ink printing devices of the type mentioned at the outset, which make it possible to provide a pulse energy adapted to the ink temperature for the transducer elements without the print quality being impaired in the process.
  • the temperature dependence of the viscosity of the ink liquid flowing in the capillaries is used.
  • the temperature of the ink liquid is measured and compared with a predetermined limit. If the measured temperature is above this limit value, the amplitude of the pulse voltage provided for the control of the thermal converter elements or the pulse duration is reduced, so that the pulse energy supplied to the converter elements is reduced.
  • the optimization of the pressure pulse can also be done by changing both the pulse amplitude as well as the pulse duration. Such an optimization of the printing pulses makes it easy to change the printing energy without impairing the printing quality. If the pressure energy is reduced at an ink temperature that is higher than the limit value, a reduction in the heating of the ink print head is achieved at the same time. This results in the advantage of a smaller ink print head cooling surface or an increase in the print data throughput, that is to say a larger one
  • Amount of data per unit of time can be processed without the ink printhead being heated inadmissibly. Such a reduced printing energy can significantly improve the ratio of the operating phase to the cooling phase of the ink print head.
  • the temperature of the ink liquid can be recorded particularly easily if a temperature sensor is arranged on the ink print head in the region of the ink reservoir. Because of the proximity and the good thermal coupling, the temperature of the ink liquid can be replaced by the temperature of the ink print head in the area of the ink reservoir with sufficient accuracy.
  • Bridge resistance network used, the output of which controls an adjustable voltage regulator that is already available for the control of the thermal converters, so the effort for the optimization is reduced to a few standard components, resulting in an overall inexpensive device.
  • FIG. 1 shows the temporal profiles of the control voltage and the pressure pulse and, in a schematic manner, the generation of vapor bubbles and droplets
  • FIG. 2 shows the temperature dependence of the kinematic viscosity of an ink liquid suitable for printing with thermal converters
  • FIG. 3 shows the dependence of the pulse energy, pulse voltage and pulse duration on the ink temperature
  • Figure 4 is a block diagram of a device for optimizing the pressure pulses
  • FIG. 5 shows another way to optimize the pressure pulses in a detailed representation.
  • the left half of FIG. 1 shows a voltage square-wave pulse suitable for driving electrothermal transducer elements, which is characterized by its amplitude U and the pulse duration T.
  • the time course of the pressure pulse P is drawn in an ink channel TK, which ultimately leads to the ejection of ink droplets from the nozzles of an ink jet print head.
  • Individual selected points in time t 1 to t 7 are marked on the time axis t, which can be found in the vapor bubble generation shown schematically on the right half of FIG. 1 with subsequent droplet ejection process.
  • the side views of the ink channel TK associated with the individual times t 1 to t 7 are shown there in each case.
  • the thermal converter element is represented by its electrical resistance R D.
  • the pulse voltage is applied to the transducer element, this begins to heat up and the ink liquid TFL is heated.
  • the pressure begins to build up within the ink channel TK and thus develop an ink vapor bubble TBL. This is growing continue until a time t 4 , although the pulse voltage has already been switched off again (time t 3 ) .
  • the pressure pulse P I had its maximum value at this time.
  • the ink vapor bubble TBL collapses (times t 5 , t 6 ) and an ink droplet TTR is expelled.
  • the ink vapor bubble TBL retracts the meniscus at the nozzle outlet when it collapses, and the capillary force of the meniscus causes the nozzle to be refilled with ink from the ink reservoir.
  • the original state time t 1
  • a new droplet ejection can be initiated.
  • the temperature dependence of the kinematic viscosity V T is one for ink printing with thermal converters suitable ink liquid TFL shown.
  • the kinematic viscosity V T is the quotient of the
  • the kinematic viscosity V T is 5.5 mm 2 / s, while at an ink temperature of 45 ° C it has a value of 2.5 mm 2 / s.
  • This characteristic property that the kinematic viscosity V T of the ink liquid TFL falls with increasing temperature, is advantageously used according to the invention to optimize the pressure pulses. For a warmer ink printhead with a lower viscosity viscous liquid TFL, a lower pulse energy is therefore sufficient for the printing operation than for a colder ink printhead with a higher viscosity viscous liquid TFL, without the ink output thereby changing.
  • T I (U 2 / R D ).
  • this optimization can be done by changing the amplitude U of the pulse voltage and / or the pulse duration T I to match the ink temperature ⁇ T of the ink liquid TFL.
  • the functional relationship between these quantities and the ink temperature is shown in FIG. 3.
  • the abscissa shows the temperature ⁇ T of the ink fluid TFL in oC and the ordinate shows the pulse duration T I in ⁇ s, the amplitude square U 2 of the pulse voltage, on different scales plotted in V 2, and a relative pulse energy e I / e I in percent.
  • the use of an ink liquid is assumed, the temperature-dependent viscosity V T of which has a profile according to the characteristic curve shown in FIG. 2.
  • Thermal printing principle working ink printing device has an ink printhead TDK, which has the thermal transducers shown only hinted here with their heating resistors R Di.
  • a temperature sensor TF is arranged on the ink print head TDK in the immediate vicinity of an ink reservoir, not shown here.
  • this temperature sensor TF which can be implemented, for example, as a thermistor, PTC thermistor, silicon component or as a thin-film resistor, the temperature ⁇ TDK of the ink printhead TDK is detected.
  • the detected temperature ⁇ TDK of the ink print head TDK can be used as a measure of the temperature of the ink liquid TFL ( ⁇ T ⁇ ⁇ TDK ).
  • the signal of the temperature sensor TF is fed via an analog / digital converter AD in digitized form to a central control ZS of the ink printing device.
  • the central control ZS can be a control device which is known per se and is necessary for the printing operation anyway, which electronically processes the data to be printed out and forwards it to an ink print head control TKS, which in turn activates the thermal converters via individual electronic switches (not shown here).
  • the central control ZS can also be implemented by a microprocessor control known per se. 3, which is based on the characteristic shown in FIG. 2 and is stored in a memory SP of the central control system ZS, the pressure pulse energy is set as a function of the measured temperature ⁇ TDK . This is done by means of the parameters pulse duration T I and / or the amplitude U of the pulse voltage, with which the thermal transducers are controlled via the ink printhead control TKS.
  • the control voltage can be generated in a known manner via a voltage regulator.
  • FIG. 5 shows a further embodiment of a device for switching from a high pressure pulse energy E I to a lower energy E I 'after reaching a predetermined limit temperature for the liquid ink.
  • the solution according to the device described with reference to FIG. 4 is simplified here by a comparator with a bridge resistance network replacing the analog / digital converter and a pulse voltage source controlled by the comparator output.
  • TKS printer-controlled electronic switches ES i to ES n provided according to the number of thermal converters R Di for releasing the pulse voltage during the pulse duration, a pulse voltage source UBB and a comparison circuit K.
  • the inkjet printhead TDK contains a large number of thermal converters which are known are integrated on a single substrate and have the heating resistors denoted by R Dl to R Dn in FIG.
  • the individual heating resistors R Di are assigned, via separate lines, for example in the form of conductor tracks, the individually controllable electronic switches ES 1 to ES n , which are connected to the actual print-generating device and have the task of converting the converter elements with their heating resistors R Dl to R Dn to be applied to the control voltage depending on the print character.
  • a connection of the heating resistors R Di is made to the collector of the corresponding electronic switch ES i .
  • the emitters of the electronic switches ES i are connected to a reference potential 0 V, for example to the ground line.
  • the other connections of the heating resistors R Di are to all of the heating resistors R ⁇ . common line connected via which they can be connected to a pulse voltage source UBB.
  • the temperature sensor TF is additionally arranged on the ink print head TDK in the immediate vicinity of an ink reservoir (not shown here).
  • a thermistor is used as the temperature sensor TF, the resistance of which at a specific temperature of the ink liquid ⁇ T is referred to as the resistance R TF . While one connecting wire of the temperature sensor TF is connected to the reference potential, its other connection is connected to the inverting input of a comparator K.
  • This comparator K is with a operated with respect to the ground positive and negative supply voltage UCC.
  • a series connection of two resistors R 4 and R 5 is connected between the positive connection of the supply voltage UCC and the ground potential. An unspecified connection point between these two resistors is led to the non-inverting input of the comparator K.
  • a resistor R 6 between the positive connection of the supply voltage UCC and the inverting input of the comparator K.
  • the output A of the comparator K is connected to the base of a switching transistor ST, the collector of which can be set via a resistor R 2 to a setting input ADJ Voltage regulator SR is performed.
  • the pulse voltage source UBB and the output terminal are connected to the input terminal V IN of this voltage regulator SR
  • V OUT is connected to the connection line common to all converter elements.
  • a series connection of two resistors R 3 and R 1 is connected to ground at the output V OUT of the voltage regulator SR.
  • the connection point of the two resistors R 3 , R 1 is led to the setting input ADJ.
  • the LM 317T module from Texas Instruments can be used as the voltage regulator SR
  • this limit temperature (for example 50 ° C.) must first be set. This is done with the aid of a reference voltage divider consisting of the resistors R 4 and R 5 .
  • the temperature ⁇ T of the ink liquid TFL is detected by the temperature sensor TF and is given by the measuring voltage divider consisting of the resistors R 6 and R TF . If the temperature of the ink liquid TFL is less than or equal to that of the counter If R 4 and R 5 were set limit temperature, the output A of the comparator K is on a logical
  • the pulse duration T I with which the thermal converter resistors R Dl to R Dn are activated in a pressure-controlled manner via the electronic switches ES 1 to ES n was kept constant (for example 6.5 ⁇ s).
  • the output A of the comparator K can, however, in connection with the central control ZS of the ink printing device, not shown here, also for switching the pulse duration from T I to T I '
  • Example described using a reduction of the pulse energy with increasing ink temperature is also within the scope of the invention to increase the pulse energy from a value corresponding to the ambient temperature, i.e. to increase the amplitude and / or the pulse duration. This could e.g. then be useful if the ink printing device is operated at extremely low ambient temperatures and the ink preheating provided to keep the ink constant is not sufficient to enable undisturbed printing operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Ink Jet (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

L'optimisation des impulsions d'impression pour les convertisseurs électrothermiques des imprimantes à jet d'encre est basée sur le fait que la viscosité de l'encre liquide dépend de la température. Lorsque la température augmente et que, par conséquent, la viscosité diminue, la force de frottement intérieure de l'encre liquide qui s'écoule dans les capillaires diminue également, ce qui a pour effet de réduire la pression nécessaire à la projection des gouttes et donc l'énergie des impulsions. Comme l'énergie des impulsions électriques dépend de la tension et de la durée de ces impulsions, le niveau de la tension des impulsions et/ou leur durée sont modifiés en fonction de la valeur mesurée pour la température de l'encre, de telle manière que lorsque la température de l'encre augmente (ou diminue) par rapport à une valeur limite, les convertisseurs sont commandés avec une énergie d'impulsion réduite (ou accrue).
PCT/EP1990/000141 1989-03-14 1990-01-25 Procede et dispositif pour l'optimisation des impulsions d'impression dans les imprimantes a jet d'encre fonctionnant au moyen de convertisseurs thermiques WO1990010540A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP89104479 1989-03-14
EP89104479.4 1989-03-14

Publications (1)

Publication Number Publication Date
WO1990010540A1 true WO1990010540A1 (fr) 1990-09-20

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PCT/EP1990/000141 WO1990010540A1 (fr) 1989-03-14 1990-01-25 Procede et dispositif pour l'optimisation des impulsions d'impression dans les imprimantes a jet d'encre fonctionnant au moyen de convertisseurs thermiques

Country Status (1)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0496525A1 (fr) * 1991-01-18 1992-07-29 Canon Kabushiki Kaisha Méthode d'enregistrement à jet d'encre et appareil utilisant l'énergie thermique
EP0558221A3 (en) * 1992-02-24 1993-12-22 Xerox Corp Electronic spot size control in a thermal ink jet printer
EP0650838A3 (fr) * 1993-10-29 1996-01-10 Hewlett Packard Co Test de l'énergie thermique de mise en circuit pour une imprimante par jet d'encre.
WO1996032275A1 (fr) * 1995-04-12 1996-10-17 Eastman Kodak Company Compensation en temperature d'une alimentation de dispositif de chauffage dans des systemes d'impression
US5751302A (en) * 1996-03-29 1998-05-12 Xerox Corporation Transducer power dissipation control in a thermal ink jet printhead
US5781205A (en) * 1995-04-12 1998-07-14 Eastman Kodak Company Heater power compensation for temperature in thermal printing systems
US5861895A (en) * 1991-01-09 1999-01-19 Canon Kabushiki Kaisha Ink jet recording method and apparatus controlling driving signals in accordance with head temperature
US6328407B1 (en) 1999-01-19 2001-12-11 Xerox Corporation Method and apparatus of prewarming a printhead using prepulses
CN114919288A (zh) * 2022-04-22 2022-08-19 昇捷丰标识科技(厦门)有限公司 喷码机的加热控制方法、系统及其喷码机

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPS5663464A (en) * 1979-10-31 1981-05-30 Fujitsu Ltd Temperature conpensation system for ink jet recording apparatus
JPS56136373A (en) * 1980-03-29 1981-10-24 Sharp Corp Temperature corrector for ink jet recording head
US4544931A (en) * 1983-04-22 1985-10-01 Canon Kabushiki Kaisha Liquid jet recording apparatus
US4719472A (en) * 1982-06-18 1988-01-12 Canon Kabushiki Kaisha Ink jet recording head
US4746937A (en) * 1985-06-10 1988-05-24 Ing. C. Olivetti & C., S.P.A. Control apparatus for an on-demand ink jet printing element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5663464A (en) * 1979-10-31 1981-05-30 Fujitsu Ltd Temperature conpensation system for ink jet recording apparatus
JPS56136373A (en) * 1980-03-29 1981-10-24 Sharp Corp Temperature corrector for ink jet recording head
US4719472A (en) * 1982-06-18 1988-01-12 Canon Kabushiki Kaisha Ink jet recording head
US4544931A (en) * 1983-04-22 1985-10-01 Canon Kabushiki Kaisha Liquid jet recording apparatus
US4746937A (en) * 1985-06-10 1988-05-24 Ing. C. Olivetti & C., S.P.A. Control apparatus for an on-demand ink jet printing element

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 127 (M-83)(799) 15 August 1981, & JP-A-56 063464 (MICHITOKU KUTAMI) 30 Mai 1981, siehe das ganze Dokument *
PATENT ABSTRACTS OF JAPAN vol. 6, no. 17 (M-109)(895) 30 Januar 1982, & JP-A-56 136373 (HIROKATA TOKI) 24 Oktober 1981, siehe das ganze Dokument *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5861895A (en) * 1991-01-09 1999-01-19 Canon Kabushiki Kaisha Ink jet recording method and apparatus controlling driving signals in accordance with head temperature
US6310636B1 (en) 1991-01-18 2001-10-30 Canon Kabushiki Kaisha Ink jet recording method and apparatus for driving recording head based on head temperature
US6116710A (en) * 1991-01-18 2000-09-12 Canon Kabushiki Kaisha Ink jet recording method and apparatus using thermal energy
US6457794B1 (en) 1991-01-18 2002-10-01 Canon Kabushiki Kaisha Ink jet recording method and apparatus for controlling recording signal parameters
EP0686506A3 (fr) * 1991-01-18 1996-04-03 Canon Kk Méthode d'enregistrement à jet d'encre et appareil utilisant l'énergie thermique
EP0694406A3 (fr) * 1991-01-18 1996-04-03 Canon Kk Méthode d'enregistrement à jet d'encre et appareil utilisant l'énergie thermique
EP0496525A1 (fr) * 1991-01-18 1992-07-29 Canon Kabushiki Kaisha Méthode d'enregistrement à jet d'encre et appareil utilisant l'énergie thermique
AU646917B2 (en) * 1991-01-18 1994-03-10 Canon Kabushiki Kaisha Ink jet recording method and apparatus using thermal energy
US5894314A (en) * 1991-01-18 1999-04-13 Canon Kabushiki Kaisha Ink jet recording apparatus using thermal energy
EP0558221A3 (en) * 1992-02-24 1993-12-22 Xerox Corp Electronic spot size control in a thermal ink jet printer
EP0650838A3 (fr) * 1993-10-29 1996-01-10 Hewlett Packard Co Test de l'énergie thermique de mise en circuit pour une imprimante par jet d'encre.
US5781205A (en) * 1995-04-12 1998-07-14 Eastman Kodak Company Heater power compensation for temperature in thermal printing systems
WO1996032275A1 (fr) * 1995-04-12 1996-10-17 Eastman Kodak Company Compensation en temperature d'une alimentation de dispositif de chauffage dans des systemes d'impression
US5751302A (en) * 1996-03-29 1998-05-12 Xerox Corporation Transducer power dissipation control in a thermal ink jet printhead
US6328407B1 (en) 1999-01-19 2001-12-11 Xerox Corporation Method and apparatus of prewarming a printhead using prepulses
CN114919288A (zh) * 2022-04-22 2022-08-19 昇捷丰标识科技(厦门)有限公司 喷码机的加热控制方法、系统及其喷码机

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