公开(公告)号：US06371592B1

公开(公告)日：2002-04-16

申请号：US09538301

申请日：2000-03-30

申请人： Naoji Otsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Minoru Teshigawara ,  Toshiyuki Chikuma

发明人： Naoji Otsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Osamu Iwasaki ,  Minoru Teshigawara ,  Toshiyuki Chikuma

IPC分类号： B41J29393

CPC分类号： B41J19/145

摘要： A construction of a printing apparatus wherein a printing registration with respect to forward and reverse scans of a printing head and a printing registration with respect to a plurality of printing heads are automatically carried out is realized without rendering the apparatus complex or causing its production cost to rise. To this end, the optical sensor for measuring patterns formed for use in printing registration is also used to serve other purposes such as a detection of a printing home position or a detection of a printing medium's end. Furthermore, by appropriately controlling a single optical sensor according to each of various intended purposes, the optimum characteristics are utilized in each respective operating mode. Because of the above, the addition of sensors to be used only for the purpose of printing registration and the accompanying rise of the print apparatus production cost are restrained.

摘要翻译： 一种打印装置的结构，其中自动执行相对于多个打印头的打印头的正向和反向扫描和打印登记的打印登记，而不会使装置复杂或导致其制造成本 上升。 为此，用于测量形成用于印刷配准的图案的光学传感器也用于其他目的，例如检测打印原始位置或检测打印介质的末端。 此外，通过根据各种预期目的适当地控制单个光学传感器，在每个相应的操作模式中使用最佳特性。 由于上述原因，所以仅限于印刷登记用途的传感器的增加以及印刷装置的生产成本随之而来。

公开(公告)号：US07578570B2

公开(公告)日：2009-08-25

申请号：US11683925

申请日：2007-03-08

申请人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Minoru Teshigawara

发明人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Minoru Teshigawara

IPC分类号： B41J29/38

CPC分类号： B41J3/60 ,  B41J13/0045

摘要： An ink-jet recording apparatus applicable for two-side recording, which permits reliable reduction of smears caused by contact of the recording medium or secondary smears staining the following recording media by the ink adhering in the conveyance path, and obtaining high-quality images. After performing recording on the surface of the recording medium by the recording head for discharging ink, the recording medium is reversed for recording on the back thereof. For each of unit regions obtained by dividing the region corresponding to the surface of the recording medium, information about the quantity of ink to be applied to these unit regions is acquired, and the length of the operation downtime corresponding to the period of time from the end of the operation relating to recording on the surface of the recording medium up to the operation start relating to recording on the back of the recording medium is determined based on the acquired information.

摘要翻译： 一种适用于双面记录的喷墨记录装置，其允许可靠地减少由粘附在输送路径中的墨水对下列记录介质染色的记录介质或二次涂层的接触引起的涂抹痕迹，并获得高质量的图像。 在通过用于排出墨水的记录头在记录介质的表面上进行记录之后，记录介质在其背面被反向记录。 对于通过划分与记录介质的表面相对应的区域获得的每个单位区域，获取关于要施加到这些单位区域的油墨量的信息，并且与从该区域的时间段相对应的操作停机时间 基于获取的信息来确定与在记录介质的表面上记录直到与记录介质的背面上的记录有关的操作开始的操作的结束。

公开(公告)号：US20070153041A1

公开(公告)日：2007-07-05

申请号：US11683925

申请日：2007-03-08

申请人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Minoru Teshigawara

发明人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Minoru Teshigawara

IPC分类号： B41J29/38

CPC分类号： B41J3/60 ,  B41J13/0045

摘要： An ink-jet recording apparatus applicable for two-side recording, which permits reliable reduction of smears caused by contact of the recording medium or secondary smears staining the following recording media by the ink adhering in the conveyance path, and obtaining high-quality images. After performing recording on the surface of the recording medium by the recording head for discharging ink, the recording medium is reversed for recording on the back thereof. For each of unit regions obtained by dividing the region corresponding to the surface of the recording medium, information about the quantity of ink to be applied to these unit regions is acquired, and the length of the operation downtime corresponding to the period of time from the end of the operation relating to recording on the surface of the recording medium up to the operation start relating to recording on the back of the recording medium is determined based on the acquired information.

摘要翻译： 一种适用于双面记录的喷墨记录装置，其允许可靠地减少由粘附在输送路径中的墨水对下列记录介质染色的记录介质或二次涂层的接触引起的涂抹痕迹，并获得高质量的图像。 在通过用于排出墨水的记录头在记录介质的表面上进行记录之后，记录介质在其背面被反向记录。 对于通过划分与记录介质的表面相对应的区域获得的每个单位区域，获取关于要施加到这些单位区域的油墨量的信息，并且与从该区域的时间段相对应的操作停机时间 基于获取的信息来确定与在记录介质的表面上记录直到与记录介质的背面上的记录有关的操作开始的操作的结束。

公开(公告)号：US20050073535A1

公开(公告)日：2005-04-07

申请号：US10953946

申请日：2004-09-29

申请人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Minoru Teshigawara

发明人： Satoshi Seki ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Minoru Teshigawara

IPC分类号： B41J3/60 ,  B41J13/00 ,  B41J29/38

CPC分类号： B41J3/60 ,  B41J13/0045

摘要： An ink-jet recording apparatus applicable for two-side recording, which permits reliable reduction of smears caused by contact of the recording medium or secondary smears staining the following recording media by the ink adhering in the conveyance path, and obtaining high-quality images. After performing recording on the surface of the recording medium by the recording head for discharging ink, the recording medium is reversed for recording on the back thereof. For each of unit regions obtained by dividing the region corresponding to the surface of the recording medium, information about the quantity of ink to be applied to these unit regions is acquired, and the length of the operation downtime corresponding to the period of time from the end of the operation relating to recording on the surface of the recording medium up to the operation start relating to recording on the back of the recording medium is determined based on the acquired information.

摘要翻译： 一种适用于双面记录的喷墨记录装置，其允许可靠地减少由粘附在输送路径中的墨水对下列记录介质染色的记录介质或二次涂层的接触引起的涂抹痕迹，并获得高质量的图像。 在通过用于排出墨水的记录头在记录介质的表面上进行记录之后，记录介质在其背面被反向记录。 对于通过划分与记录介质的表面相对应的区域获得的每个单位区域，获取关于要施加到这些单位区域的油墨量的信息，并且与从该区域的时间段相对应的操作停机时间 基于获取的信息来确定与在记录介质的表面上记录直到与记录介质的背面上的记录有关的操作开始的操作的结束。

公开(公告)号：US20050270313A1

公开(公告)日：2005-12-08

申请号：US11145975

申请日：2005-06-07

申请人： Naomi Oshio ,  Minoru Teshigawara ,  Kiichiro Takahashi ,  Naoji Otsuka

发明人： Naomi Oshio ,  Minoru Teshigawara ,  Kiichiro Takahashi ,  Naoji Otsuka

IPC分类号： B41J2/18 ,  B41J2/165 ,  B41J2/17 ,  B41J2/185 ,  B41J19/20 ,  B41J29/38

CPC分类号： B41J29/38 ,  B41J2/16526 ,  B41J2/1707

摘要： In an inkjet printing apparatus having a plurality of printing modes with different scanning speeds, first and second preliminary discharge performing positions are provided within the moving area of a carriage as positions where preliminary discharge is performed to cause a printhead to discharge ink irrespective of printing, and a combination of positions where preliminary discharge is performed is set from the first and second preliminary discharge performing positions in accordance with the scanning speed in a set printing mode. This makes it possible to execute preliminary discharge at intervals within necessary intervals even if the scanning speed is decreased when high resolution printing is performed.

摘要翻译： 在具有不同扫描速度的多种打印模式的喷墨打印设备中，在滑架的移动区域内设置第一和第二初步排出执行位置作为执行预排出以使打印头不管打印而排墨的位置， 并且在设定的打印模式中根据扫描速度从第一和第二预排气执行位置设定执行预备排放的位置的组合。 这使得即使在执行高分辨率打印时扫描速度降低，也可以在必要的间隔内间隔地执行预排出。

公开(公告)号：US07448721B2

公开(公告)日：2008-11-11

申请号：US11145975

申请日：2005-06-07

申请人： Naomi Oshio ,  Minoru Teshigawara ,  Kiichiro Takahashi ,  Naoji Otsuka

发明人： Naomi Oshio ,  Minoru Teshigawara ,  Kiichiro Takahashi ,  Naoji Otsuka

IPC分类号： B41J2/165

CPC分类号： B41J29/38 ,  B41J2/16526 ,  B41J2/1707

摘要： In an inkjet printing apparatus having a plurality of printing modes with different scanning speeds, first and second preliminary discharge performing positions are provided within the moving area of a carriage as positions where preliminary discharge is performed to cause a printhead to discharge ink irrespective of printing, and a combination of positions where preliminary discharge is performed is set from the first and second preliminary discharge performing positions in accordance with the scanning speed in a set printing mode. This makes it possible to execute preliminary discharge at intervals within necessary intervals even if the scanning speed is decreased when high resolution printing is performed.

摘要翻译： 在具有不同扫描速度的多种打印模式的喷墨打印设备中，在滑架的移动区域内设置第一和第二初步排出执行位置作为执行预排出以使打印头不管打印而排墨的位置， 并且在设定的打印模式中根据扫描速度从第一和第二预排气执行位置设定执行预备排放的位置的组合。 这使得即使在执行高分辨率打印时扫描速度降低，也可以在必要的间隔内间隔地执行预排出。

公开(公告)号：US06652066B2

公开(公告)日：2003-11-25

申请号：US09984353

申请日：2001-10-30

申请人： Minoru Teshigawara ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Toshiyuki Chikuma

发明人： Minoru Teshigawara ,  Naoji Otsuka ,  Kiichiro Takahashi ,  Hitoshi Nishikori ,  Toshiyuki Chikuma

IPC分类号： B41J215

CPC分类号： B41J2/04528 ,  B41J2/04553 ,  B41J2/04566 ,  B41J2/0458

摘要： Images are printed with a reduced extent of a joint streak regardless of the type of a printing medium or the number of printing passes and a printing speed is increased without executing an unwanted thinning for correcting the joint streak. More specifically, printing method information added to print data is obtained, and it is determined on the basis of this information whether or not to execute a thinning process. Consequently, inter-band data correction process based on the thinning can be executed depending on the type of the print medium and the number of printing passes, thereby achieving an appropriate thinning depending on the type of the print medium or the like. When the thinning is not to be executed, all the processes related to the thinning can be omitted to prevent a decrease in printing speed.

公开(公告)号：US06623093B2

公开(公告)日：2003-09-23

申请号：US10143784

申请日：2002-05-14

申请人： Kiichiro Takahashi ,  Naoji Otsuka ,  Koichi Tanno ,  Minoru Teshigawara

发明人： Kiichiro Takahashi ,  Naoji Otsuka ,  Koichi Tanno ,  Minoru Teshigawara

IPC分类号： B41J2938

CPC分类号： B65H43/00 ,  B41J11/002 ,  B41J11/003 ,  B41J13/0036 ,  B41J13/106 ,  B41J29/02 ,  B65H2511/10 ,  B65H2513/10 ,  B65H2513/50 ,  B65H2601/251 ,  B65H2220/01 ,  B65H2220/02 ,  B65H2220/03

摘要： An ink jet printing apparatus is provided which can prevent a discharged paper-induced smear efficiently with a simple construction. To achieve this objective, the ink jet printing apparatus of this invention determines, based on an amount of ink ejected per unit area onto a preceding print medium last discharged to the discharge position by the discharging section, a required time duration that needs to elapse before a subsequent print medium being discharged toward the discharge position is allowed to contact a predetermined area of the preceding print medium and then controls a printing speed on the subsequent print medium so that the subsequent print medium will not contact the predetermined area of the preceding print medium within the time duration determined.

公开(公告)号：US06488350B2

公开(公告)日：2002-12-03

申请号：US09422353

申请日：1999-10-21

申请人： Osamu Iwasaki ,  Naoji Otsuka ,  Kaneji Yamada ,  Minoru Teshigawara

发明人： Osamu Iwasaki ,  Naoji Otsuka ,  Kaneji Yamada ,  Minoru Teshigawara

IPC分类号： B41J2938

CPC分类号： B41J2/04503 ,  B41J2/04528 ,  B41J2/04533 ,  B41J2/04543 ,  B41J2/04565 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2/04588 ,  B41J2/04598

摘要： The present invention reduces a difference in speed between a main drop section and a tailing section of a ejected ink droplet by heating a front heater and a rear heater provided for one nozzle with a predetermined time lag and thus, the ink dot formed from the main drop section and the tailing section on a printing medium can be more approximate to a circle. Thereby, it is possible to prevent print quality from being degraded by the tailing section separated from the main drop section of the ink droplet ejected from an ink jet printing apparatus of serial type.

摘要翻译： 本发明通过以预定的时间延迟加热设置在一个喷嘴上的前加热器和后加热器，从而降低喷墨墨滴的主液滴部分和拖尾部分之间的速度差，因此，由主要部件形成的墨点 打印介质上的拖放部分和拖尾部分可以更接近于一个圆形。 由此，可以防止打印质量与从串联型喷墨打印装置喷射的墨滴的主液滴部分分离的拖尾部分劣化。

公开(公告)号：US07315401B2

公开(公告)日：2008-01-01

申请号：US10417088

申请日：2003-04-17

申请人： Osamu Iwasaki ,  Naoji Otsuka ,  Minoru Teshigawara

发明人： Osamu Iwasaki ,  Naoji Otsuka ,  Minoru Teshigawara

IPC分类号： H04N1/40 ,  G06K9/38

CPC分类号： H04N1/4057

摘要： It is an object of this invention to provide a ternary or higher-order quantization method which avoids close gathering of pixels at a first output level. First and second threshold values Lth1 and Lth2 for ternarization and output values 0 (blank), 1, and 2 as converted output values are set to have a relationship of output value of 0 (blank)

摘要翻译： 本发明的目的是提供一种三元或更高阶量化方法，其避免了在第一输出电平下的像素的紧密收集。 转换后的输出值的第1和第2阈值Lth1，Lth2和输出值0（空白），1，2被设定为输出值0（空白）<第1阈值Lth1 <秒 阈值Lth 2 <1的输出值<输出值2.这样，当输入像素值为中间值时，这可以防止量化误差变为0，并且防止仅输出值为1的像素的连续输出。当该图像 被打印，对应于输出值1的小墨点不容易连续打印。 这提高了图像质量。