DE3518823C2 - - Google Patents

Info

Publication number
DE3518823C2
DE3518823C2 DE19853518823 DE3518823A DE3518823C2 DE 3518823 C2 DE3518823 C2 DE 3518823C2 DE 19853518823 DE19853518823 DE 19853518823 DE 3518823 A DE3518823 A DE 3518823A DE 3518823 C2 DE3518823 C2 DE 3518823C2
Authority
DE
Germany
Prior art keywords
signal
characterized
ejection
recording apparatus
recording
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
DE19853518823
Other languages
German (de)
Other versions
DE3518823A1 (en
Inventor
Tsutomu Isehara Kanagawa Jp Abe
Haruyuki Tokio/Tokyo Jp Matsumoto
Yoshifumi Yamato Kanagawa Jp Hattori
Shinichi Hiratsuka Kanagawa Jp Tochihara
Hiroshi Machida Tokio/Tokyo Jp Iida
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority to JP10596784A priority Critical patent/JPH0513064B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Priority claimed from DE3546837A external-priority patent/DE3546837C2/en
Publication of DE3518823A1 publication Critical patent/DE3518823A1/en
Application granted granted Critical
Publication of DE3518823C2 publication Critical patent/DE3518823C2/de
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/015Ink jet characterised by the jet generation process
    • B41J2/04Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/04528Control methods or devices therefor, e.g. driver circuits, control circuits aiming at warming up the head
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/015Ink jet characterised by the jet generation process
    • B41J2/04Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/045Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
    • B41J2/04501Control methods or devices therefor, e.g. driver circuits, control circuits
    • B41J2/0458Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on heating elements forming bubbles

Description

The invention relates to a liquid jet Recording apparatus according to the preamble of Pa to claim 1 and to a method of operation control of such a device.

In JP 58-187 364 A, of which in the preamble of Pa tentanspruchs 1 is a liquid beam recording apparatus described in which the Tin tentemperatur is detected and at low Tintentem temperature preheating takes place to the stability and the uniformity in a subsequent droplet to improve ejection. About the form of warm-upi gnales are no further details.

Moreover, it is known from DE 30 12 698 A1, a step-shaped drive pulse to the heating element to be applied, wherein in the first pulse phase with niedri ger amplitude, a preheating takes place during the  following pulse section of higher amplitude for opening heating the ink to the point of droplet ejection. These stepped pulse shape is naturally in the rhythm of Droplet ejection applied, d. H. its frequency ent speaks the ejection frequency.

From DE 29 43 164 A1 it is known a sparate Use a preheater to heat the ink, which are controlled by ambient temperature sensors can.

Finally, from DE-OS 22 60 775 an ink jet-writer known in which in record-free Times rhythmically a droplet ejection to cleaning purposes. This will be a timer used, which zurückge at each droplet ejection is set and starts to run again and the at its course the cleaning droplet ejection be mends.

The invention is based on the object, a liquid keitsstrahl recording device and a method for Indicate operation control of such a device, with which is a relatively rapid preheating the Recording liquid to ensure a good Recording quality enabling Betriebszustan of reaching.

This task is with regard to the device with the im Claim 1 and in terms of the method with solved the specified in claim 10 measures.

Advantageous developments of the invention will become apparent from the dependent claims.  

The invention will be described below with reference to the description of an embodiment For example, with reference to the drawings in more detail explained. It shows

Fig. 1 is a perspective view of a voltage Aufzeich head of one embodiment of to the invention OF INVENTION A liquid jet recording apparatus,

Fig. 2 is an enlarged partial view of the unmittelba ren vicinity of nozzles of the recording head according to Fig. 1,

Fig. 3 shows the temporal temperature course of he testified heat, in the event that an electrical thermal energy converter of the recording head three different electrical signals are supplied and

Figs. 4 and 5 are flowcharts of a recording control operation in the recording apparatus of the present invention.

Referring to FIG. 1, a supply tube 1 connects a (not shown), recording liquid main tank with a sub-tank 2 for temporarily storing the on recording liquid in the recording head and supplies the sub-tank 2 via the main tank with the on recording liquid. A suction tube 3 is connected to a recovery pump (not shown). A lead tube 4 supplies the recording liquid from the sub tank 2 to a liquid chamber 5 . A holding bracket 6 supports the supply tube 4 from. A nozzle 7 has shown in FIG. 2, a plurality of outlet openings 12 which are arranged for ejecting the recording liquid in the longitudinal direction one above the other. An electrical cal circuit unit has a flexible printed circuit 8 to supply electrical energy to an electrothermal energy converter or a heater 13 , the channel 14 as shown in FIG. 2 of the recording liquid in a Ausström 14 supplying thermal energy. On a base plate 9 , the Zuführröhr surfaces 4 , the liquid chamber 5 , the nozzle 7 , the bracket 6 and the flexible printed circuit 8 are attached. A bearing shell 10 supports the environment of the nozzle 7 . By the reference numeral 11 is finally designated a face plate.

In the present embodiment, a droplet formation means for forming droplets from the orifices 12 and the outflow 14, the areas having the openings with the respective outlet 12 are connected, and in which the heat of the heater of the recording liquid is supplied. A liquid heating device consists of the heater 13 and the flexible printed circuit 8 , which supplies the heater 13, the Benö each required electrical signal. Although not shown in the drawings, the recording apparatus comprises ejection signal generating means for generating an electrical ejection signal for ejecting droplets and a warm-up signal generating means generating an electric warm-up signal described later.

In order to perform recording with the recording apparatus of the present invention, the recording liquid is filled from the main tank via the supply tube 1 and the supply tube 4 into the sub-tank 2 , into the liquid chamber 5 and into the outflow passages 14, respectively. Via the flexible printed circuit 8 , the heating device 13 is supplied with a recording signal, that is, the heating device 13 is supplied with the electric discharge signal to the discharge signal generating device. The heater 13 therefore generates heat, whereby the recording liquid in the corresponding outflow channel 14 in the vicinity of the heater 13 heat energy is supplied and due to the sudden increase in volume of the recording liquid bubbles are formed in the same gebil det. Therefore, the recording liquid located downstream of the heater 13 is ejected from the discharge ports 12 , so that droplets of the recording liquid are formed. The droplets of the recording liquid are deposited on a recording material such as paper, which is guided to make a record on the front of the nozzle 7 over.

In the liquid jet recording apparatus according to the present invention, the heating means 13 is supplied with a warm-up signal during recording, ie, immediately before the heater 13 is supplied with the electric discharge signal for ejecting the droplets to perform the recording.

The warming-up signal of the recording apparatus of the present invention serves to warm the recording liquid by means of the heater 13 to a temperature which ensures a suitable viscosity of the recording liquid for achieving good recording liquid discharging conditions, but which is insufficient to expel droplets. This warm-up signal is generated by the warm-up signal generator means.

The warm-up time of the recording liquid, which is heated by the heater 13 by supplying the electrical Anwärm signal is preferably as fast as possible within a range in which the Aufzeich tion liquid is heated to the predetermined temperature.

Characterized in that the recording liquid is heated in a short warm-up time, the heater 13 and the surrounding parts are drawn less denschaft of the leading to a material fatigue heat in Mitlei denschaft, whereby their life is extended. In addition, the heat propagation from the heater to its surroundings is as small as possible and the amount of the recording liquid to be heated is reduced, a heating means on the recording liquid in the discharge channels or the liquid chamber is turned off and the progress of the Ver evaporation of the solvent constituents of the recording liquid from the outlet openings, caused by prolonged heating, is prevented. The heating time of the recording liquid is determined depending on a temperature characteristic of the recording liquid such as its heat capacity, the structure of the recording apparatus and a temperature suitable for discharging the recording liquid.

If in the liquid jet-Auf drawing device supplied to the electrical Anwärmsignal will be, in view of the above requirements the voltage, the frequency and the pulse width or the energy content of this Signals in accordance with a concern or not abutment of the ejection signal, a tempera property of the recording liquid used, a temperature property of viscosity of the recording tion liquid and a change in the viscosity of Recording liquid during a non-recording phase or break.

There are different methods to get the electrical signal to control so that generates the electric Anwärmsignal becomes. In a method, the one in the recording device existing electrical signal circuit is used is the ejection signal generator means of the warm-up signal generator device shared or is with this identical and the electrical signal of the ejection signal Generator means is supplied in the following manner cut to generate the electrical heating signal.

Fig. 3 shows the relationship between the frequency, the voltage and the pulse width of the applied electrical signal and the temperature profile, wherein the Heizeinrich device electrical signals with a voltage of 23.5 V, a pulse width of 5 microseconds and a frequency of 10 kHz or 5 kHz or 2 kHz.

For cutting or reshaping the output be signals

  • a) the pulse width of the ejection signal ver reduces and increases the frequency,
  • b) reduces the voltage of the ejection signal and the frequency increases, or  
  • c) the pulse width and the voltage of the off Reduced impact signal and increases the frequency.

The respective values in these methods change with the properties of the recording liquid used and the properties of the recording device and are therefore not uniformly defined. In the procedure ren a) is the pulse width of the electric heater signals preferably 1 / 1.25 to 1/100, but better ½ to 1/20 of the pulse width of the ejection signal. The frequency of the electrical warm-up signal is preferred wise 2 to 100 times, but better 5 to 50 times as large like the frequency of the ejection signal. In which Method b) is the voltage of the electrical An heat signal preferably 1 / 1.25 to 1/10, but better 1 / 1.4 to 1 / 2.4 of the discharge pressure nals while the frequency of the electrical warm-up signal preferably 2 to 100 times, but more preferably 5 to 50 times big as the frequency of the ejection signal is. In the method c), the voltage of the elektri preferably warming signal 1 / 1.25 to 1/10, better however, 1 / 1.4 to 1 / 2.4 of the voltage of the off shock signal, while the pulse width of the electric Warming signal preferably 1 / 1.25 to 1/100, better each yet ½ to 1/20 of the pulse width of the off shock signal amounts. The frequency of the electric Warm-up signal is preferably 2 to 100 times, better however, 5 to 50 times the frequency of the Output signal.

The ejection signal generator means and the warm-up signal generator means can also be independent of be provided to each other and separately.

The electrical heating signal can immediately before  Supply of the discharge signal to the heater be fed, or it may also be immediately before Timing be supplied, in which the off burst signal after a non-recording phase while the recorder was on or after a break in operation while the recording device was switched off, is supplied.

If in the environmental conditions of the recording device such as As the temperature, the viscosity of the Aufzeich liquid in the discharge channel may not be within the appropriate range becomes immediate before the supply of the ejection signal to the heating means the electrical heating signal supplied so that the viscosity of the recording liquid at the time point of ejection to a suitable value is is. If under the conditions of use of Auf drawing device, such as. As the temperature, the viscosity the recording liquid in the appropriate range gehal but not for a predetermined period of time Consecutive droplet is ejected (non-recording phase se) or the recording device in an operation pause, the viscosity of the recording liquid due to the evaporation of the solvent in the surrounding air increase. The duration of the non-Auf drawing phase or break is therefore ge counts. When the recording comes back on after a while is taken, which counted a predetermined length of this th time exceeds the heater is the supplied electrical heating signal.

The predetermined length of the duration of the non-record phase or break, d. H. the length of time after the expiration, the viscosity of the recording liquid in the outflow channel, but especially in the immediate  Near the outlet openings near the preferred range depends on the characteristics of the Aufzeich device, the characteristics of the recording liquid and the ambient conditions, such as the temperature and the humidity of the location where the recording device is set up. It is therefore in accordance with the respec recorder and its operating conditions established.

After the supply of the electrical heating signal for heating Device can in the inventive recording device of the heater initially a non-printing Ejection signal and then the printing Output signal to be supplied.

The non-printing ejection signal causes in that the droplet is indeed ejected, however collected by the recorder and not for printing is used on the recording material.

Even if the non-recording phase or the Be dyslexia lasts a very long time and the viscosity of the Recording liquid by the evaporation of Lö is increased by the supply of the electrical Anwärmsignals to the heater follows low supply of non-printing exhaust nals reach that having a high viscosity or viscous recording liquid from the heating device is heated and its temperature rises. When As a result, the viscosity of the recording liquid becomes reduced to such an extent that an ejection the droplet is possible, even if the educated Droplet may not be satisfactory. Subsequently becomes after supply of the ejection signal to the heating means the recording in the vicinity thereof  liquid ejected from the discharge channel and a Recording liquid whose viscosity within the for the ejection suitable range lies in the un promoted indirect environment of the heater. because good injection conditions for the up maintain drawing fluid.

The non-printing ejection signal goes down supplied the condition that a Aufzeichflüs which is suitable for ejection Neten range lying viscosity, by Anle gen the electrical Anwärmsignals to the heater sprayed out and the sprayed droplets out of the Strömkanal is removed.

FIGS. 4 and 5 show flow charts for a control unit of the recording apparatus according to the invention. In this case, t denotes an upper limit of the recording-free time (predetermined time interval) within which no preheating is required, ie, within which there is no supply of the electrical heating signal for heating the recording liquid to such an extent that the recording liquid is not being ejected, is required, while T indicates an upper limit of the no-record time (predetermined time interval) within which preheat is required. When the time exceeds T, preheating and pre-discharge are required. The term pre-ejection refers to the non-printing ejection of a droplet.

When fed according to Fig. 4 after switching on a pressure signal or ejection signal, the pre-heating and pre-ejection are performed in this order before a recording droplet is ejected in the control unit. Then, the discharge signal generating means generates the electric discharge signal which is supplied to the heater for discharging the recording liquid. If the no-record time exceeds t, the preheat is performed. On the other hand, if the no-record time exceeds T, preheating and pre-discharging are performed.

When the apparatus is turned on, the preheating and pre-discharging are performed in the control unit as shown in FIG . If no recording is made after switching on, the no-record time will be counted. If it exceeds t, the preheat is performed. On the other hand, if it exceeds T, preheating and pre-discharging are performed. The control of a recording-free time after recording is similar to that shown in FIG .

In the recording device according to the invention is the Droplet heat energy is used and the off impact energy generating device (heating device) is used simultaneously to record the recordings to warm it up to such an extent that it not sprayed. However, it is also possible For this purpose, a separate and independent device vorzu see or attach them to such a location the heat is not used for droplet formation. Furthermore, it is possible to carry out the beschrie control a recording liquid heating to provide device such as a heater.

According to the invention, therefore, the electric Anwärmsignal and, if necessary, the non-printing droplet-off shock signal of the heater 13 is supplied immediately before the supply of the ejection signal, that the viscosity of the ejected recording liquid speed is adjusted to a value that is suitable, good conditions for the Ejecting the droplets to get. Therefore, even if recording is resumed after a long non-recording phase or a pause in operation, good and stable conditions for discharging the droplets are always obtained.

Since the recording liquid from the electrical heating signal is not heated frequently and the warm-up time is very high is short, the life of the environment is close Heating device of the recording device arranged Parts not diminished by the effects of heat and stored in the immediate vicinity of the heater The recording liquid is recorded during a recording period without heat changed, so that good and stable conditions for the ejection or the ejection the droplet scored.

In the described embodiment of the Aufzeich device which converts thermal energy to droplet formation turns, the recording liquid heating is used direction for the initial adjustment of the viscosity the recording liquid from the droplet formation device also used. As a result, none own recording liquid heating device required; nevertheless one always achieves equal good ones and stable conditions for the ejection of the Droplet.

Example 1

There was used a liquid jet recording apparatus according to the present invention, which had a recording head as shown in Fig. 1, in which 24 outlets of 50 × 40 μm in a vertical row and 0.141 mm apart were disposed. In this recording device, a recording liquid was filled with composition described later. After a one hour record-less time at 25 ° C and 30% humidity, a recording process was started again, the heating device immediately before the supply of an electrical discharge signal with a voltage of 23.5 V, a pulse width of 10 microseconds and a frequency of 2 kHz an electrical Anwärmsignal was supplied with a voltage of 23.5 V, a pulse width of 5 microseconds and a frequency of 10 kHz. The number of droplets not ejected on expression signals was counted until all the 24 outlets ejected recording droplets so as to check the recorder for non-ejection of droplets after a no-mark time. The result is shown in Table 1.

The recording liquid used sat down like follows together:

"C.I. Tiefschwarz 19" 2 parts by weight Diethyl glycol 30 parts by weight water 70 parts by weight

Comparative Example 1

In a recording apparatus with the example 1 similar construction was the heater exclusively supplied the ejection signal. It became diesel be recording liquid as in Example 1 verwen det. After expiry of a one-hour recordless Time at 25 ° C and 30% humidity was the up  Drawing business resumed, with the heating direction with an electric discharge signal a voltage of 23.5 V, a pulse width of 10 μs and a frequency of 2 kHz was supplied. The up drawing device was used according to Example 1 to a non- Ejection of droplets after the recordless Period checked. The result is shown in Table 1 provides.

example 2

It became the same recording apparatus as in Example 1 used. The recording time lasted 12 hours. After the supply of the electric heating signal, the Heater does not consist of 100 pulses to discharge the ejection signal To spray droplets serving for printing. subsequently, ßend the heater was the output signal supplied. The next steps corresponded to those of Example 1. The same recording liquid became used and the recording device was on the same way as in example 1. The result is shown in Table 1.

Comparative Example 2

With the exception of the now 12-hour record time was recording in the same way performed as in the comparative example 1. The About The test was carried out in the same way as in Example 1. The result is shown in Table 1.  

Table 1

Claims (14)

  1. A liquid jet recording apparatus having a recording head comprising at least one electrothermal energy converter, an ejection signal generator by which the electrical energy converter is supplied with an electrical ejection signal for heating the liquid to produce flying droplets, and a warm-up signal generator means for transmitting to the electrothermal energy converter an electrical Anwärmsignal can be supplied, which is used to Erwär men the liquid, but causes no droplet impact, characterized in that the Anwärmsi signal consists of a series of individual pulses, wherein the energy content of each individual pulse is selected by itself so that thereby no droplet ejection is effected, and that the frequency of the individual pulses is higher than that of the ejection signal.
  2. 2. A liquid jet recording apparatus according to claim 1, characterized in that the ejection signal genera gate device and the Anwärmsignal-generating device are formed by a single device.
  3. 3. A liquid jet recording apparatus according to claim 1 or 2, characterized in that the pulse width the individual pulses of the warm-up signal 1 / 1.25 to 1/100 the pulse width of the pulses of the ejection signal be wearing.
  4. 4. Liquid jet recording apparatus according to one of Claims 1 to 3, characterized in that the Voltage of the warm-up signal 1 / 1.25 to 1/10 of the voltage of the ejection signal is.
  5. 5. A liquid jet recording apparatus according to one of Claims 1 to 4, characterized in that the Fre frequency of the warm-up signal 2 to 100 times, preferably 5 to 50 times, as large as the frequency of the ejection signal is.
  6. 6. liquid jet recording apparatus according to any one of the preceding claims, characterized in that the Anwärmsignalgeneratoreinrichtung the electrothermal energy converter ( 13 ) then leads the Anwärmsignal when no longer than a predetermined period of time (t) no droplet ejection.
  7. 7. A liquid jet recording apparatus according to claim 6, characterized in that after the supply of An heat signal causes the ejection of a droplet, that is not for recording.
  8. 8. A liquid jet recording apparatus according to claim 7, characterized in that not for the record NEN serving droplets is ejected, if at least a predetermined time interval (T) since the last one Droplet emission has elapsed.
  9. 9. A liquid jet recording apparatus according to one of previous claims, characterized in that the warm-up signal has lower pulse width than the off But shock signal same amplitude as this has.
  10. 10. Method for controlling the operation of a liquid A ray recording apparatus according to any one of claims 1 to 9, characterized in that after preheating by means of the warm-up signal a preflop by applying an ejection signal is performed when the Zei tintervall greater since the last pressure signal was applied as a predetermined time interval (T).
  11. 11. The method according to claim 10, characterized that a preflash is performed without preheating, if the time since delivery of the last pressure i gnals smaller than the predetermined time interval (T), but greater than a predetermined time interval (t).
  12. 12. The method according to claim 11, characterized that neither a preliminary blow nor a preheating by is performed when the time since last  Pressure signal shorter than the specified time interval (t) is.
  13. 13. The method according to claim 10, 11 or 12, characterized ge indicates that after switching on the device a Preheating and then a preliminary blow.
  14. 14. The method according to claim 10, characterized that the preheating only after applying a Aufzeich signal is carried out.
DE19853518823 1984-05-25 1985-05-24 Expired - Lifetime DE3518823C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10596784A JPH0513064B2 (en) 1984-05-25 1984-05-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3546837A DE3546837C2 (en) 1984-05-25 1985-05-24 Liq. droplet printer with electrically heated nozzles

Publications (2)

Publication Number Publication Date
DE3518823A1 DE3518823A1 (en) 1985-11-28
DE3518823C2 true DE3518823C2 (en) 1992-04-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853518823 Expired - Lifetime DE3518823C2 (en) 1984-05-25 1985-05-24

Country Status (4)

Country Link
JP (1) JPH0513064B2 (en)
DE (1) DE3518823C2 (en)
GB (1) GB2159465B (en)
HK (1) HK25591A (en)

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DE4201923A1 (en) * 1991-01-28 1992-08-06 Fuji Electric Co Ltd Ink-jet printing head - has ink nozzles placed close together on single silicon substrate, with ink flow channels formed in substrate by dry-plasma etching

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US5302971A (en) * 1984-12-28 1994-04-12 Canon Kabushiki Kaisha Liquid discharge recording apparatus and method for maintaining proper ink viscosity by deactivating heating during capping and for preventing overheating by having plural heating modes
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JPS63120656A (en) * 1986-11-10 1988-05-25 Canon Inc Liquid jet recording system
US5053787A (en) * 1988-01-27 1991-10-01 Canon Kabushiki Kaisha Ink jet recording method and head having additional generating means in the liquid chamber
US5068674A (en) * 1988-06-07 1991-11-26 Canon Kabushiki Kaisha Liquid jet recording head stabilization
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US5175565A (en) * 1988-07-26 1992-12-29 Canon Kabushiki Kaisha Ink jet substrate including plural temperature sensors and heaters
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JP2705994B2 (en) * 1989-03-31 1998-01-28 キヤノン株式会社 Recording method, recording apparatus and recording heads
US5808632A (en) * 1990-02-02 1998-09-15 Canon Kabushiki Kaisha Recording apparatus and method using ink jet recording head
JP2752491B2 (en) * 1990-02-02 1998-05-18 キヤノン株式会社 Liquid jet recording apparatus
JP2891748B2 (en) * 1990-06-15 1999-05-17 キヤノン株式会社 The driving method of an inkjet head
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JP2002096470A (en) 1999-08-24 2002-04-02 Canon Inc Device for recording, nethod for controlling the same, and computer readable memory
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Also Published As

Publication number Publication date
GB8513187D0 (en) 1985-06-26
DE3518823A1 (en) 1985-11-28
GB2159465B (en) 1988-03-09
HK25591A (en) 1991-04-12
GB2159465A (en) 1985-12-04
JPH0513064B2 (en) 1993-02-19
JPS60248357A (en) 1985-12-09

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