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公开(公告)号：US20200047492A1
公开(公告)日：2020-02-13
申请号：US16533862
申请日：2019-08-07
摘要： A printing apparatus prints by discharging ink to a transfer member from a first printhead, discharging a transfer accelerator to the ink from a second printhead, and transferring an image formed on the transfer member to a print medium. When inspecting a discharge state of each of plural nozzles provided in each of the first and second printheads, the apparatus controls the second printhead so as to discharge the transfer accelerator from at least one nozzle of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plural nozzles of the first printhead, while inspecting a discharge state of a nozzle different from the at least one nozzle of the second printhead by discharging the transfer accelerator from the nozzle.
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公开(公告)号：US20190001662A1
公开(公告)日：2019-01-03
申请号：US16015364
申请日：2018-06-22
发明人： Toshiki Takeuchi , Masahiro Sugimoto , Ippei Tsushima , Kohei Fukui , Masato Izumi , Ryosuke Sato , Kenji Sugiyama , Kengo Nieda , Kota Uchida , Yuichiro Yanagi , Yusuke Nakaya , Atsushi Sakamoto , Susumu Hirosawa , Takeshi Murase , Futoshi Hirose
IPC分类号： B41J2/005
摘要： A printing apparatus according to an embodiment of this invention brings, out of a cleaning unit that cleans a transfer member in contact with a transfer member and an application unit that applies a reactive liquid with ink to the transfer member, the cleaning unit into contact with the transfer member to clean the transfer member by the cleaning unit at the start of the printing operation. Alternatively, out of the application unit and an absorbing unit that absorbs a liquid component from the reactive liquid applied by the application unit in contact with the transfer member, the printing apparatus brings the application unit into contact with the transfer member to apply the reactive liquid by the application unit.
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3.发明申请公开(公告)号：US20170274647A1
公开(公告)日：2017-09-28
申请号：US15459408
申请日：2017-03-15
发明人： Takatsuna Aoki , Shuzo Iwanaga , Seiichiro Karita , Kazuhiro Yamada , Shingo Okushima , Zentaro Tamenaga , Akira Yamamoto , Tatsurou Mori , Noriyasu Nagai , Akio Saito , Masashi Hayashi , Takeshi Murase , Yuki Sawai
IPC分类号： B41J2/045
CPC分类号： B41J2/04563 , B41J2/04528 , B41J2/04531 , B41J2/0458 , B41J2202/12 , B41J2202/20
摘要： In order to keep possible local temperature differences in a liquid ejection head small to allow stable liquid ejection performance to be achieved, temperatures in a plurality of heating areas in a liquid ejection head are discretely controlled using heating elements and temperature detection elements.
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公开(公告)号：US20140092164A1
公开(公告)日：2014-04-03
申请号：US14098288
申请日：2013-12-05
发明人： Takeshi Murase , Masao Kato , Shigeyasu Nagoshi , Minako Kato , Minoru Teshigawara , Yoshiaki Murayama , Susumu Hirosawa , Yutaka Kano , Satoshi Azuma , Kentarou Muro
IPC分类号： B41J2/125
CPC分类号： B41J2/16579 , B41J2/0451 , B41J2/125 , B41J2/2139 , B41J2/2142 , H04N1/00015 , H04N1/00037 , H04N1/00063 , H04N1/00087
摘要： A process of detecting a defective recording element and a process of correcting the defective recording element are performed with appropriate processing loads. When the detection process and the correction processes are performed with small loads, for example, at a time of recording, a resolution used for reading an inspection pattern is set lower than that set in a case where the processes can be performed with small loads, for example, at down time before recording. The reading resolution to be set may be determined by an apparatus in accordance with a processing load or may be arbitrarily determined by a user.
摘要翻译： 以适当的处理负荷进行检测缺陷记录元件的处理和校正有缺陷的记录元件的处理。 当以小负载执行检测处理和校正处理时，例如在记录时，将用于读取检查图案的分辨率设置为低于可以以小负载进行处理的情况下设置的分辨率， 例如，在记录之前的停机时间。 要设置的读取分辨率可以由根据处理负载的装置确定，或者可以由用户任意确定。
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公开(公告)号：US20130335471A1
公开(公告)日：2013-12-19
申请号：US13912725
申请日：2013-06-07
IPC分类号： B41J2/045
CPC分类号： B41J2/04563 , B41J2/04536 , B41J2/04551 , B41J2/0458 , B41J2/04588 , B41J2/175
摘要： One aspect of this invention is directed to suitable drive control in accordance with an output from the temperature sensor of a printhead. More specifically, a printing apparatus by using a printhead that includes heaters and a temperature sensor on a substrate and discharges ink by driving the heaters executes the following steps. First, when printing a test pattern by using a predetermined driving pulse in a maintenance mode, a detected temperature is stored as a reference temperature in a memory. Then, in a normal printing mode, the difference between a detected temperature and the stored reference temperature is calculated, and a driving pulse for driving the printhead is selected from a plurality of driving pulses based on the difference. The printhead is controlled to be driven using the selected driving pulse and print.
摘要翻译： 本发明的一个方面涉及根据打印头的温度传感器的输出的合适的驱动控制。 更具体地，通过使用包括加热器的打印头和基板上的温度传感器并通过驱动加热器排出墨水的打印装置执行以下步骤。 首先，当在维护模式中通过使用预定的驱动脉冲来打印测试图案时，将检测到的温度作为参考温度存储在存储器中。 然后，在正常打印模式中，计算出检测温度与所存储的参考温度之间的差异，并且基于差异从多个驱动脉冲中选择用于驱动打印头的驱动脉冲。 使用所选择的驱动脉冲将打印头控制为驱动并打印。
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公开(公告)号：US12070942B2
公开(公告)日：2024-08-27
申请号：US17512243
申请日：2021-10-27
发明人： Taku Yokozawa , Kazuhiko Sato , Noboru Kunimine , Takeshi Murase , Hiroshi Taira , Hiroshi Kawafuji , Sae Mogi , Akiko Aichi
IPC分类号： B41J2/045
CPC分类号： B41J2/04563 , B41J2/0458
摘要： An inkjet printing apparatus includes a print head configured to print an image on a printing medium using a printing element configured to eject ink with thermal energy, a scanning unit configured to cause the print head to scan the printing medium, and a control unit configured to control scanning by the scanning unit and image printing by the print head based on an image printing instruction, wherein the control unit performs a control operation including executing a preliminary ejection to eject, from the print head, ink that does not contribute to image printing before an image is printed in one scanning operation, and determining an amount of ink to be ejected in the preliminary ejection based on a difference between a target temperature and a scanning start temperature, which is a temperature of the print head acquired in response to an instruction to start the one scanning operation.
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公开(公告)号：US11958301B2
公开(公告)日：2024-04-16
申请号：US17355571
申请日：2021-06-23
发明人： Takeshi Murase , Kazuhiko Sato , Taku Yokozawa , Noboru Kunimine , Hiroshi Taira , Hiroshi Kawafuji , Sae Mogi , Akiko Aichi
IPC分类号： B41J25/00 , B41J2/045 , B41J29/393
CPC分类号： B41J25/006 , B41J2/04563 , B41J29/393
摘要： A printing apparatus includes a printing unit configured to print an image on a print medium, an acquiring unit configured to acquire temperature information of the printing unit, and a control unit configured to control the printing unit so as to start relative scanning in a case where a temperature that is indicated by the temperature information has reached a print permission temperature. The print permission temperature in a first print mode whose speed at a time of a constant speed in relative scanning is a first speed is a first temperature. The print permission temperature in a second print mode whose speed at the time of the constant speed is a second speed that is faster than the first speed is a second temperature that is lower than the first temperature.
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公开(公告)号：US11919300B2
公开(公告)日：2024-03-05
申请号：US17201034
申请日：2021-03-15
发明人： Hiroshi Kawafuji , Kazuhiko Sato , Kazuo Suzuki , Takeshi Murase , Hiroshi Taira , Tomoki Yamamuro , Sae Mogi , Masaki Nitta
CPC分类号： B41J2/04563 , B41J2/0458 , B41J25/006
摘要： An inkjet printing apparatus adopting short pulse heating is designed to output a uniform image without unevenness. To this end, in a serial inkjet printing apparatus, a print head is subjected to a short pulse heating treatment before each print scan is carried out. In a case where a print medium is a first print medium, the print head is heated to a first target temperature before carrying out each of the print scans. In a case where the print medium is a second print medium, the print head is heated to a second target temperature lower than the first target temperature before carrying out each of the print scans.
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公开(公告)号：US20200047491A1
公开(公告)日：2020-02-13
申请号：US16533859
申请日：2019-08-07
IPC分类号： B41J2/045
摘要： A printing apparatus for printing using a printhead including a plurality of nozzles each configured to discharge ink and a plurality of sensors, corresponding to the plurality of nozzles, for detecting a discharge state of ink from the plurality of nozzles, judges a discharge state. More specifically, the apparatus prints, based on print data, an image by driving the printhead under a first drive condition to discharge the ink from the printhead to a first area, discharges ink to a second area different from the first area by driving the printhead, based on inspection data, under a second drive condition different from the first drive condition, and judges a discharge state of each nozzle by monitoring an output from each sensor at a timing of driving the printhead under the second drive condition.
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公开(公告)号：US10507646B2
公开(公告)日：2019-12-17
申请号：US15709278
申请日：2017-09-19
发明人： Satoshi Kitai , Kouichi Serizawa , Masahiko Umezawa , Atsushi Takahashi , Shinsuke Ikegami , Takeshi Murase , Masashi Hayashi , Yuki Sawai
摘要： Priority order is updated so that an ejection port that is selected as an ejection port subjected to ejection failure determination in a pixel row in which a previous ejection operation is to be performed has the lowest priority order, which is used for selecting an ejection port subjected to ejection failure determination, in a pixel row in which a subsequent ejection operation is to be performed.
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