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公开(公告)号：DE69229822T2
公开(公告)日：2000-02-17
申请号：DE69229822
申请日：1992-10-16
Applicant: SONY CORP
Inventor： EGUCHI YASUHITO , ANDO MAKOTO , NARUSHIMA TOSHIO , TOMONO KAORU , SATO MASAYUKI , ARAYA MASAO
Abstract: The present invention is to provide an on-demand type ink-jet printer which is free from the risk such that the nozzle is stopped and which is also free from the maintenance. An ink-jet print head comprises a liquid chamber (2) into which a carrier liquid (7) is filled, ink-jet driving means (3), (4) disposed within the liquid chamber (2), a nozzle (14) communicated with the liquid chamber (2) and a mixing unit (14a) disposed in the vicinity of the nozzle (14) for mixing an ink (9) into the carrier liquid (7). The ink (9) is mixed into the carrier liquid (7) in the liquid chamber (2) by the mixing unit (14a), pressed by the ink-jet driving means (3), (4) and then ink-jetted from the nozzle (14). Since the carrier liquid (7) is constantly filled into the nozzle (14), the nozzle (14) can be prevented from being choked up.
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公开(公告)号：DE69608737T2
公开(公告)日：2001-02-08
申请号：DE69608737
申请日：1996-03-26
Applicant: SONY CORP
Inventor： NAGANUMA TOHRU , SATO MASAYUKI
Abstract: In a liquid jet recording apparatus, a stable ink ejection/recording operation is realized, and a natural image with improved multi-gradation is recorded. In the liquid jet recording apparatus for mixing a dilution liquid with ink quantified by utilizing displacement of a piezoelectric device in response to print data, and for ejecting a mixture fluid made by mixing the ink with the dilution fluid so as to perform a recording operation, when the ink is quantified, a rising speed of a signal applied to the piezoelectric device is selected to be lower than, or equal to 1V/microsecond.
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公开(公告)号：DE69218848T2
公开(公告)日：1997-11-06
申请号：DE69218848
申请日：1992-07-29
Applicant: SONY CORP
Inventor： EGUCHI YASUHITO , SATO MASAYUKI , NARUSHIMA TOSHIO , SANPEI AKIRA
Abstract: The overcharge preventing circuit for secondary batteries comprises overcharge detecting comparators (COMP2, COMP4), each having a hysteresis circuit (1), which are connected between positive and negative electrodes of series-connected secondary batteries (Abat, Bbat), and overdischarge detecting comparators (COMP1, COMP3), each having a hysteresis circuit (2), again connected beteween said electrodes. Transistors (T1, T2) and a resistor (R) are connected between the batteries for overflow of overcharge and balance of overdischarge. Upon detection of any over charge by the comparator COMP2 or COMP4, the charge current is interrupted by a transistor (T6). Simultaneously the overcharge overflow is discharged by the hysteresis circuit until the battery voltage is lowered to the hysteresis voltage. After the discharge, the transistor (T6) is turned on to resume recharging of the batteries. Upon detection of any overdischarge by the comparator COMP1 or COMP3, the discharge current is interrupted by a transistor (T5). Thus, the overcharge and the overdischarge can be balanced by the hysteresis said circuits (1,2, respectively).
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公开(公告)号：DE69218848D1
公开(公告)日：1997-05-15
申请号：DE69218848
申请日：1992-07-29
Applicant: SONY CORP
Inventor： EGUCHI YASUHITO , SATO MASAYUKI , NARUSHIMA TOSHIO , SANPEI AKIRA
Abstract: The overcharge preventing circuit for secondary batteries comprises overcharge detecting comparators (COMP2, COMP4), each having a hysteresis circuit (1), which are connected between positive and negative electrodes of series-connected secondary batteries (Abat, Bbat), and overdischarge detecting comparators (COMP1, COMP3), each having a hysteresis circuit (2), again connected beteween said electrodes. Transistors (T1, T2) and a resistor (R) are connected between the batteries for overflow of overcharge and balance of overdischarge. Upon detection of any over charge by the comparator COMP2 or COMP4, the charge current is interrupted by a transistor (T6). Simultaneously the overcharge overflow is discharged by the hysteresis circuit until the battery voltage is lowered to the hysteresis voltage. After the discharge, the transistor (T6) is turned on to resume recharging of the batteries. Upon detection of any overdischarge by the comparator COMP1 or COMP3, the discharge current is interrupted by a transistor (T5). Thus, the overcharge and the overdischarge can be balanced by the hysteresis said circuits (1,2, respectively).
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公开(公告)号：DE69608737D1
公开(公告)日：2000-07-13
申请号：DE69608737
申请日：1996-03-26
Applicant: SONY CORP
Inventor： NAGANUMA TOHRU , SATO MASAYUKI
Abstract: In a liquid jet recording apparatus, a stable ink ejection/recording operation is realized, and a natural image with improved multi-gradation is recorded. In the liquid jet recording apparatus for mixing a dilution liquid with ink quantified by utilizing displacement of a piezoelectric device in response to print data, and for ejecting a mixture fluid made by mixing the ink with the dilution fluid so as to perform a recording operation, when the ink is quantified, a rising speed of a signal applied to the piezoelectric device is selected to be lower than, or equal to 1V/microsecond.
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Patent Agency Ranking
公开(公告)号：DE69229822D1
公开(公告)日：1999-09-23
申请号：DE69229822
申请日：1992-10-16
Applicant: SONY CORP
Inventor： EGUCHI YASUHITO , ANDO MAKOTO , NARUSHIMA TOSHIO , TOMONO KAORU , SATO MASAYUKI , ARAYA MASAO
Abstract: The present invention is to provide an on-demand type ink-jet printer which is free from the risk such that the nozzle is stopped and which is also free from the maintenance. An ink-jet print head comprises a liquid chamber (2) into which a carrier liquid (7) is filled, ink-jet driving means (3), (4) disposed within the liquid chamber (2), a nozzle (14) communicated with the liquid chamber (2) and a mixing unit (14a) disposed in the vicinity of the nozzle (14) for mixing an ink (9) into the carrier liquid (7). The ink (9) is mixed into the carrier liquid (7) in the liquid chamber (2) by the mixing unit (14a), pressed by the ink-jet driving means (3), (4) and then ink-jetted from the nozzle (14). Since the carrier liquid (7) is constantly filled into the nozzle (14), the nozzle (14) can be prevented from being choked up.
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公开(公告)号：JPH08323982A
公开(公告)日：1996-12-10
申请号：JP19336795
申请日：1995-07-28
Applicant: SONY CORP
Inventor： NAGANUMA TORU , SATO MASAYUKI
Abstract: PURPOSE: To obtain a natural image having improved multiple gradation independent of a quantitative voltage value, conducting stable discharge recording, without deteriorating a recorded image. CONSTITUTION: In this liquid-jet recording device in which a transparent solvent 2 and ink measured quantitatively with the utilization of the displacement of an electrostriction element 6 on the basis of printing data are mixed, and the mixed liquid 11 is discharged to conduct recording, the start-up speed of a signal applied to the electrostriction element 9 is made 1V/μsec or less.
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公开(公告)号：JPH0671881A
公开(公告)日：1994-03-15
申请号：JP23310492
申请日：1992-08-07
Applicant: SONY CORP
Inventor： SATO MASAYUKI , KAKINUMA KOICHIRO
Abstract: PURPOSE:To realize a stable density gradation in dots by preventing a spontaneous mixture of ink and a transparent solvent and a spontaneous drying during a standby time. CONSTITUTION:In a head base 1, a groove part 2 is formed, and in the groove part 2, respectively ink and a transparent solvent are supplied and mixed through an ink supplying path 4 and a transparent solvent supplying path 5. Besides, a cantilever bimorph-type piezo element 6 which engages with the groove part 2 is set and both supplying pathes 4, 5 are opened or shut according to deformation of the piezo element 6.
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公开(公告)号：JPH0549181A
公开(公告)日：1993-02-26
申请号：JP21301991
申请日：1991-07-31
Applicant: SONY CORP
Inventor： EGUCHI YASUHITO , SATO MASAYUKI , NARISHIMA TOSHIO , SANPEI AKIRA
Abstract: PURPOSE:To provide an overcharge and overdischarge preventive circuit having balanced capacity. CONSTITUTION:Overcharge detecting comparators COMP2, COMP4 having hysteresis circuits 1 and overdischarge detecting comparators COMP1, COMP3 having hysteresis circuits 2 are connected between positive and negative electrodes of secondary batteries Abat, Bbat connected in series. Transistors T1, T2 and a resistor R are connected between respective batteries in order to prevent overcharge overflow and to balance overdischarge. When the COMP2 or COMP4 detects overcharge, a transistor T6 interrupts charging current and the battery discharges the overcharge overflow down to the hysteresis voltage. Thereafter, the transistor T6 is turned ON to start recharging of both batteries. When the COMP1 or COMP3 detects overdischarge, a transistor T5 interrupts the discharge current. Consequently, overcharge and overdischarge can be balanced by means of the hysteresis circuits 1, 2.
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公开(公告)号：JPH10119286A
公开(公告)日：1998-05-12
申请号：JP31236097
申请日：1997-11-13
Applicant: SONY CORP
Inventor： NARISHIMA TOSHIO , TOMONO KAORU , ANDO MASATO , SATO MASAYUKI , SHINYA MASAO
Abstract: PROBLEM TO BE SOLVED: To provide a driving method for an ink jet printer capable of allowing an ink which is pressed to be ejected from an ink ejection hole to surely come into contact with a solvent ejected from a solvent ejection hole at each of the ejection holes, thereby obtaining good density gradation by a unit of dot by mixture of the two liquids. SOLUTION: There is disclosed a driving method for an ink jet printer wherein an ink ejection hole 13 for ejecting an ink 4 and a solvent ejection hole 12 for ejecting a solvent 2 are disposed to be in close proximity with each other and the ink pressed to be ejected from the ink ejection hole 13 and the solvent ejected from the solvent ejection hole 12 are brought into contact with each other at the ejection holes 12, 13, then the ink 4 and the solvent 2 are ejected. After the completion of applying of a voltage for pressing to eject the ink 4, applying of a voltage for ejecting the solvent 2 is completed.
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