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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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公开(公告)号：US10596812B2
公开(公告)日：2020-03-24
申请号：US15991419
申请日：2018-05-29
摘要： According to an embodiment of the present invention, to improve processing performance, a printing apparatus that performs printing by using a printhead formed by a plurality of headchips includes one CPU, a table configured to store processing contents set by the CPU, and a plurality of processing units configured to process, in parallel, printing data to be used in each headchip by commonly using the table and in accordance with the processing contents set in the table. In addition, the apparatus includes a plurality of control units configured to wait for the completion of the processing of each processing unit, synchronize the plurality of processing units for next processing, and cause each of the processing units to execute the next processing in accordance with the processing contents set in the table.
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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：US20130166804A1
公开(公告)日：2013-06-27
申请号：US13718290
申请日：2012-12-18
发明人： Eriko Nishitani , Satoshi Kitai
IPC分类号： G06F13/24
CPC分类号： G06F13/24
摘要： A memory control unit is connected to a first bus and a second bus and that controls writing and reading of data to a memory; a control unit controls the information processing apparatus; a first circuit device is connected to the first bus and outputs a data write request to the memory control unit and a notification signal; a second circuit device is connected to the first bus and outputs a data read request to the memory control unit in accordance with the notification signal and an interrupt signal to the control unit in response to the data read request; and a third circuit device is connected to the second bus and outputs a data read request stored in the memory to the memory control unit in accordance with an instruction from the control unit which has received an interrupt signal.
摘要翻译： 存储器控制单元连接到第一总线和第二总线，并且控制数据向存储器的写入和读取; 控制单元控制信息处理设备; 第一电路装置连接到第一总线并向存储器控制单元输出数据写入请求和通知信号; 第二电路装置连接到第一总线，并且响应于数据读取请求，根据通知信号和中断信号将数据读取请求输出到存储器控制单元和控制单元; 并且第三电路装置连接到第二总线，并且根据已经接收到中断信号的控制单元的指令将存储在存储器中的数据读取请求输出到存储器控制单元。
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公开(公告)号：US12043027B2
公开(公告)日：2024-07-23
申请号：US17492303
申请日：2021-10-01
CPC分类号： B41J2/0451 , B41J2/0057
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：US11981132B2
公开(公告)日：2024-05-14
申请号：US17850777
申请日：2022-06-27
发明人： Satoshi Kitai
CPC分类号： B41J2/04591 , B41J2/04586 , B41J2/145
摘要： In at least one embodiment, a number of nozzle rows in a first area on a side of one end of a first substrate closest to one end of a print head is set to be lower than a number of nozzle rows on a central side of the print head relative to the first area, and energy for driving the element on the first substrate is set to be larger than energy for driving the element on a second substrate on the central side of the print head relative to the first substrate to set a dot to be formed on the recording medium by ink discharged from a nozzle in the first area to be larger than a dot to be formed on the recording medium by ink discharged from a nozzle in the second substrate.
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公开(公告)号：US11155078B2
公开(公告)日：2021-10-26
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：US20210252851A1
公开(公告)日：2021-08-19
申请号：US17235124
申请日：2021-04-20
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：US10286650B2
公开(公告)日：2019-05-14
申请号：US15669632
申请日：2017-08-04
摘要： A pixel row in an arrangement direction or an orthogonal direction is divided into processing groups including pixels at every predetermined pixel count in the pixel row. Nondischarge complementary processing is sequentially performed on the divided plurality of processing groups.
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