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公开(公告)号：US20190168506A1
公开(公告)日：2019-06-06
申请号：US16203726
申请日：2018-11-29
发明人： Tomonori YAMADA , Junya YADA , Kanako IDE , Toru MATSUYAMA
IPC分类号： B41J2/045
CPC分类号： B41J2/04563 , B41J2/04515 , B41J2/04573 , B41J2/04581 , B41J2/04593
摘要： A liquid ejecting apparatus includes a scanner unit, a scanner drive section that drives the scanner unit, a head unit that is provided with an ejection section, a drive signal generation section that generates a drive signal driving the ejection section, a casing in which the head unit is disposed, a temperature information output section that outputs temperature information indicating a value corresponding to a temperature in the casing, and a stop control section that decides a time length of the stop period in which generation of the drive signal is stopped based on the temperature information, in which the time length is longer when the scanner unit is driven than when the scanner unit is not driven.
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公开(公告)号：US20190077146A1
公开(公告)日：2019-03-14
申请号：US15743106
申请日：2016-07-05
申请人： Konica Minolta, Inc.
发明人： Masanori SHIMAZOE
CPC分类号： B41J2/04593 , B41J2/04541 , B41J2/04581 , B41J2/04588 , B41J2/0459 , B41J2/2128
摘要： An inkjet recording apparatus and an inkjet recording method which enable changing a droplet amount without changing a droplet speed of an ink discharged from the same nozzle, and including an inkjet head which expands and contracts a capacity of a pressure chamber by applying a driving signal to an actuator and a driving circuit which applies the driving signal to the actuator, the driving signal including a first expansion pulse which starts from a reference potential and expands the capacity of the pressure chamber, a first contraction pulse which contracts the capacity of the pressure chamber to discharge the ink from the nozzle, a second expansion pulse which expands the capacity of the pressure chamber, and a second contraction pulse which contracts the capacity of the pressure chamber and returns to the reference potential in the mentioned order, the driving circuit being configured to enable discharging different droplet amounts of the ink from the same nozzle by changing a potential difference between a start edge and an end edge of the first contraction pulse.
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公开(公告)号：US20190054741A1
公开(公告)日：2019-02-21
申请号：US15743699
申请日：2016-07-11
申请人： Jan Franck
发明人： Jan Franck
CPC分类号： B41J2/04581 , B41J2/04503 , B41J2/04588 , B41J2/04593 , B41J2/04595 , B41J2/14201
摘要： The invention relates to a method for actuating an inkjet print head, comprising at least one printing system having a nozzle on the side of an ink chamber which faces a substrate to be imprinted, and which is delimited at least in areas, preferably in its area facing away from the print substrate, by a diaphragm that is movable away from the ink chamber by electrically actuating a piezo element that is mechanically coupled to the diaphragm, so that ink is drawn into the ink chamber from a reservoir, and the diaphragm is movable into the ink chamber so that an ink drop is ejected from the ink chamber through the nozzle, wherein the printing system made up of the ink chamber, diaphragm, piezo element, and the electronic control system thereof represents an oscillatable structure which, when actuated at high energy, is excited to oscillate at a natural frequency fres that exhibits resonance; i.e. the oscillation with the period Tres=1/fres undergoes little or no attenuation, and wherein the brightness of a pixel to be printed is varied in that, for each pixel, a sequence of multiple ink drops is ejectable in succession from the same nozzle at a time interval of Tdrop=1/fdrop, and energy is only introduced into the printing system via the actuation signal precisely when an ink drop is actually to be ejected.
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4.发明申请公开(公告)号：US20190054736A1
公开(公告)日：2019-02-21
申请号：US15998536
申请日：2018-08-16
发明人： Hirofumi Terasawa
IPC分类号： B41J2/045
CPC分类号： B41J2/0451 , B41J2/04551 , B41J2/04581 , B41J2/04586 , B41J2/04593 , B41J2/2142 , B41J2/2146
摘要： Provided is a printer control device that controls a printer that includes an ink jet head unit that has head arrays, in which three or more ink jet heads for ejecting ink from nozzle arrays are aligned in a nozzle array extending direction, the printer control device includes a head control section that causes an ink jet head unit to execute printing without using a designated head that is an ink jet head designated and all ink jet heads aligned on one side in the nozzle array extending direction with reference to the designated head, in a designation mode, in which inhibition of use of the ink jet heads is designated.
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公开(公告)号：US20190009526A1
公开(公告)日：2019-01-10
申请号：US16027470
申请日：2018-07-05
发明人： Tomokazu YAMADA , Hidehiko YAJIMA
IPC分类号： B41J2/045 , H03K17/687
CPC分类号： B41J2/04541 , B41J2/04548 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596 , H03K17/6871
摘要： There is provided a liquid discharge apparatus including: a discharge unit which discharges a liquid by a piezoelectric element; and a driving circuit which drives the piezoelectric element, in which the driving circuit includes a first transistor pair which is driven by a first power source voltage and a second power source voltage, a second transistor pair which is driven by the second power source voltage and a third power source voltage, and a first control circuit which controls on a first input signal, and in which, the shortest distance between the first power source voltage and the first input terminal is shorter than the shortest distance between the second power source voltage and the first input terminal, and the shortest distance between the second power source terminal and the first input terminal is shorter than the shortest distance between the third power source voltage and the first input terminal.
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公开(公告)号：US20180345696A1
公开(公告)日：2018-12-06
申请号：US15993778
申请日：2018-05-31
发明人： Kazushi Kodaira
CPC分类号： B41J19/005 , B41J2/04541 , B41J2/04548 , B41J2/0455 , B41J2/0457 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596
摘要： A large format printer performs serial printing on a medium which is greater than or equal to A3 short side width. The large format printer includes a print head which performs printing in accordance with variations in a drive voltage signal which is applied to a drive element, a control circuit which generates a drive signal (an example of the drive voltage signal), and a cable which is greater than or equal to 1 m and transmits a power voltage signal (an example of a constant voltage signal) and the drive voltage for driving the print head from the control circuit to the print head. An overshooting prevention circuit which renders a voltage (a drive voltage) of the drive signal which is applied to the drive element less than or equal to a voltage (a power voltage) of the power voltage signal is disposed in the print head.
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公开(公告)号：US20180257371A1
公开(公告)日：2018-09-13
申请号：US15755946
申请日：2016-08-23
发明人： Osamu SHINKAWA
CPC分类号： B41J2/04588 , B41J2/0451 , B41J2/04541 , B41J2/04581 , B41J2/04593 , B41J2/04596 , B41J2/14201 , B41J2/16579 , B41J2/16585 , B41J29/38 , B41J29/393 , B41J2002/14354 , B41J2202/21
摘要： A liquid ejecting device includes: an ejector including: a piezoelectric element displacing corresponding to a drive signal potential; a pressure chamber changing volume corresponding to the piezoelectric element displacement; and a nozzle communicating with the pressure chamber, and ejecting liquid from the pressure chamber; and a detector detecting residual vibrations produced by the ejector after piezoelectric element displacement. The detector detects the residual vibrations in a third period when the drive signal having a drive waveform is supplied to the piezoelectric element. The drive waveform being set to a first potential in a first period, a second potential in a second period, and a third potential in the third period. The volume of the pressure chamber in the second period is smaller than the volume in the first period. The volume of the pressure chamber in the third period is larger than in the second period.
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公开(公告)号：US10005275B2
公开(公告)日：2018-06-26
申请号：US15264856
申请日：2016-09-14
IPC分类号： B41J2/045
CPC分类号： B41J2/04541 , B41J2/0451 , B41J2/04581 , B41J2/04586 , B41J2/04588 , B41J2/04593 , B41J2/04596 , B41J2002/14354
摘要： A liquid discharging apparatus includes a first discharge section that discharges a metallic ink, a second discharge section that discharges a pigment ink, a detection section that detects residual vibrations that occur in the first discharge section, and outputs a first detection signal, which shows a corresponding detection result, and detects residual vibrations that occur in the second discharge section, and outputs a second detection signal, which shows a corresponding detection result, and a determination section that executes a first determination, which determines whether or not the first detection signal satisfies first conditions, which should be satisfied in a case in which a discharge state of the first discharge section is normal, and executes a second determination, which determines whether or not the second detection signal satisfies second conditions, which should be satisfied in a case in which a discharge state of the second discharge section is normal.
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9.发明申请公开(公告)号：US20180147833A1
公开(公告)日：2018-05-31
申请号：US15816139
申请日：2017-11-17
发明人： Masahiro Fukazawa
IPC分类号： B41J2/045
CPC分类号： B41J2/0451 , B41J2/04508 , B41J2/04581 , B41J2/04586 , B41J2/04593 , B41J2/2139 , B41J2/2146
摘要： A specifying section specifies in printing data a first dot position at which a defective nozzle discharges an ink droplet to print the ink droplet on a medium when the defective nozzle is not defective, but is normal, and specifies in printing data a second dot position different from the first dot position based on priority information in which priority is set for each pixel. A data correcting section corrects the printing data. The collecting corresponds to allocating an amount of ink of the first dot position to the second dot position. When the first dot position at which the ink droplet is provided to the medium if the defective nozzle is not defective is specified, a neighboring second dot position different from the first dot position is specified based on the preset priority information, and the data correcting section corrects the printing data so as to allocate the amount of ink to the second dot position based on the mount of ink of the first dot position.
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公开(公告)号：US09956766B2
公开(公告)日：2018-05-01
申请号：US15336952
申请日：2016-10-28
发明人： Tomonori Yamada , Toru Matsuyama
CPC分类号： B41J2/04541 , B41J2/04548 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596 , B41J29/02 , B41J29/13 , B41J29/38
摘要： A liquid ejecting apparatus includes: a liquid ejecting section that ejects liquid in response to a drive signal; a drive signal generation circuit that generates the drive signal by using a second frequency band including at least a part of a first frequency band; a non-contact power transmission circuit that transmits power in a non-contact manner by using the first frequency band; and a control circuit that controls the drive signal generation circuit and the non-contact power transmission circuit, in which the control circuit restricts the power transmission by the non-contact power transmission circuit in a case where the drive signal generation circuit has generated the drive signal.
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