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公开(公告)号：US20240042767A1
公开(公告)日：2024-02-08
申请号：US18490658
申请日：2023-10-19
发明人： Kei Kosaka , Tetsuya Narazaki
CPC分类号： B41J2/1721 , B41J2/16505 , B41J2/1652 , B41J2/16532 , B41J2/16523 , B41J2002/16594
摘要： There is provided a liquid discharge apparatus. A print head includes a nozzle that discharges a liquid. A recovery unit includes a cap that caps the nozzle and a pump that suctions a liquid from the nozzle via the cap, and discharges to a waste liquid tank that accommodates a waste liquid of suctioned liquid. A control unit causes the recovery unit to execute at least one of a first recovery operation, in which the suction pump is driven at a first driving amount, or a second recovery operation, in which the pump is driven at a second driving amount smaller than the first driving amount, based on an amount of waste liquid discharged to the waste liquid tank.
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公开(公告)号：US11833816B2
公开(公告)日：2023-12-05
申请号：US17728604
申请日：2022-04-25
发明人： Satoko Yaita , Kei Kosaka
CPC分类号： B41J2/04573 , B41J2/04541 , B41J2/04553 , B41J2/04563
摘要： A printing apparatus according to an embodiment of this present invention includes a printhead with an orifice for discharging ink, and a recovery unit configured to perform recovery of the printhead by driving a print element of the printhead to discharge ink from the orifice. The apparatus makes a setting for a request for discharge recovery by the recovery unit after initialization processing performed upon power-on of the printing apparatus, and controls the recovery unit to execute one of first discharge recovery and second discharge recovery in which an ink discharge amount is smaller than in the first discharge recovery in accordance with the setting before a start of printing by the printhead.
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公开(公告)号：US11338579B2
公开(公告)日：2022-05-24
申请号：US16832431
申请日：2020-03-27
发明人： Satoko Yaita , Kei Kosaka
摘要： A printing apparatus according to an embodiment of this present invention includes a printhead with an orifice for discharging ink, and a recovery unit configured to perform recovery of the printhead by driving a print element of the printhead to discharge ink from the orifice. The apparatus makes a setting for a request for discharge recovery by the recovery unit after initialization processing performed upon power-on of the printing apparatus, and controls the recovery unit to execute one of first discharge recovery and second discharge recovery in which an ink discharge amount is smaller than in the first discharge recovery in accordance with the setting before a start of printing by the printhead.
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公开(公告)号：US20220111649A1
公开(公告)日：2022-04-14
申请号：US17495653
申请日：2021-10-06
发明人： Kei Kosaka , Tetsuya Narazaki
IPC分类号： B41J2/165
摘要： There is provided a liquid discharge apparatus. A print head includes a nozzle that discharges a liquid. A recovery unit includes a cap that caps the nozzle and a pump that suctions a liquid from the nozzle via the cap, and discharges to a waste liquid tank that accommodates a waste liquid of suctioned liquid. A control unit causes the recovery unit to execute at least one of a first recovery operation, in which the suction pump is driven at a first driving amount, or a second recovery operation, in which the pump is driven at a second driving amount smaller than the first driving amount, based on an amount of waste liquid discharged to the waste liquid tank.
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公开(公告)号：US20180029371A1
公开(公告)日：2018-02-01
申请号：US15659304
申请日：2017-07-25
发明人： Kei Kosaka , Tomoyuki Tenkawa , Monta Matsui , Satoko Furuyama
IPC分类号： B41J2/165
CPC分类号： B41J2/16532 , B41J2/16508 , B41J2/16523 , B41J2/16547 , B41J2002/16555 , B41J2002/16573
摘要： An ink-jet printing apparatus includes a print head having a first discharge port and a second discharge port, a cap, a suction unit connected to the cap for sucking ink from the print head, and a determining unit which determines one to be performed by the print head between a first printing operation using the first and second discharge ports and a second printing operation using the first discharge port only, wherein before the first printing operation, the suction unit is controlled to perform first and second suction operations sucking at different strengths. A storing unit further provided therein stores history information indicating the past performance of that the first printing operation. Before the second printing operation, the suction unit is controlled to perform the first suction operation only and, based on the history information after the printing operation, perform the second suction operation.
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公开(公告)号：US09517628B2
公开(公告)日：2016-12-13
申请号：US14815151
申请日：2015-07-31
发明人： Tomoyuki Tenkawa , Atsushi Takahashi , Kei Kosaka
CPC分类号： B41J2/16508 , B41J2/16517 , B41J2/16532 , B41J2/175 , B41J2/1752 , B41J2/17566 , B41J29/02 , B41J2002/16573
摘要： A printing apparatus comprises an ink tank containing ink, a sub-tank containing the ink supplied from the ink tank, a printhead discharging the ink supplied from the sub-tank, a detection unit configured to perform a detection operation of detecting an ink remaining amount of the sub-tank, a suction unit configured to perform a suction operation of sucking the ink from the printhead, and a control unit configured to stop the suction unit from performing the suction operation when the detection unit detects that the ink remaining amount becomes smaller than a predetermined residual amount during execution of the suction operation.
摘要翻译： 一种打印装置，包括一个容纳墨水的墨盒，一个包含从墨水盒供应的墨水的副墨盒，一个排出从该副墨水盒供应的墨水的打印头，一个检测单元，用于执行检测墨水剩余量 所述抽吸单元被配置为执行从所述打印头吸取墨水的抽吸操作;以及控制单元，其被配置为当所述检测单元检测到所述墨水剩余量变小时停止所述抽吸单元执行所述抽吸操作 在执行抽吸操作期间比预定的剩余量。
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公开(公告)号：US09138991B2
公开(公告)日：2015-09-22
申请号：US13912725
申请日：2013-06-07
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：US20200316951A1
公开(公告)日：2020-10-08
申请号：US16826628
申请日：2020-03-23
摘要： There is provided a printing apparatus. A cap caps an ink ejection surface of a printhead. An ink suction path is connected to the cap and sucks the ink in the cap. An ink tank stores the ink to be supplied to the printhead. An ink supply path connects the printhead to the ink tank. A first closing unit closes the ink suction path. A second closing unit closes the ink supply path. A control unit is able to execute a first control mode in which the first closing unit closes the ink suction path and a second control mode in which the second closing unit closes the ink supply path.
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公开(公告)号：US10286649B2
公开(公告)日：2019-05-14
申请号：US15659112
申请日：2017-07-25
发明人： Satoko Furuyama , Kei Kosaka , Tomoyuki Tenkawa , Monta Matsui
摘要： An inkjet recording apparatus includes a recording head including a first discharge port configured to discharge a first amount of ink droplets and a second discharge port configured to discharge a second amount of ink droplets smaller than the first amount, a cap, a suction unit, and a determination unit configured to determine whether to perform a first recording operation by using the first and second discharge ports or a second recording operation by only using the first discharge port. If the first recording operation is determined to be performed, the suction unit performs a first suction operation with a first strength and a second suction operation with a second strength higher than the first strength. If the second recording operation is determined to be performed, the suction unit is controlled not to perform the second suction operation and to perform the first suction operation.
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公开(公告)号：US10201977B2
公开(公告)日：2019-02-12
申请号：US15659304
申请日：2017-07-25
发明人： Kei Kosaka , Tomoyuki Tenkawa , Monta Matsui , Satoko Furuyama
IPC分类号： B41J2/165
摘要： An ink-jet printing apparatus includes a print head having a first discharge port and a second discharge port, a cap, a suction unit connected to the cap for sucking ink from the print head, and a determining unit which determines one to be performed by the print head between a first printing operation using the first and second discharge ports and a second printing operation using the first discharge port only, wherein before the first printing operation, the suction unit is controlled to perform first and second suction operations sucking at different strengths. A storing unit further provided therein stores history information indicating the past performance of that the first printing operation. Before the second printing operation, the suction unit is controlled to perform the first suction operation only and, based on the history information after the printing operation, perform the second suction operation.
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