公开(公告)号：US11790200B2

公开(公告)日：2023-10-17

申请号：US18095142

申请日：2023-01-10

申请人： Kenta Takahashi ,  Daiki Marumo ,  Hironobu Murai

发明人： Kenta Takahashi ,  Daiki Marumo ,  Hironobu Murai

IPC分类号： G06K15/10 ,  G06K15/02

CPC分类号： G06K15/107 ,  G06K15/1876 ,  G06K15/1881

摘要： A liquid discharge apparatus, a method of discharging liquid, and a recording medium storing a program for causing a computer to execute the method. The liquid discharge apparatus and the method includes obtaining image data to be printed, performing dithering to achieve masking and halftone processing on the image data to generate print data, and controlling movement of a discharge head and discharge of ink based on the print data. The controlling includes increasing a ratio of a number of ink dots continuously discharged onto a recording medium in a grayscale on a shadow side to a total number of ink dots discharged onto the recording medium in one-time scanning by the discharge head in one line to be greater than a ratio of a number of ink dots continuously discharged onto the recording medium in a grayscale on a highlight side to the total number of ink dots.

公开(公告)号：US20230252255A1

公开(公告)日：2023-08-10

申请号：US18095142

申请日：2023-01-10

申请人： Kenta Takahashi ,  Daiki Marumo ,  Hironobu Murai

发明人： Kenta Takahashi ,  Daiki Marumo ,  Hironobu Murai

IPC分类号： G06K15/10 ,  G06K15/02

CPC分类号： G06K15/107 ,  G06K15/1881 ,  G06K15/1876

摘要： A liquid discharge apparatus, a method of discharging liquid, and a recording medium storing a program for causing a computer to execute the method. The liquid discharge apparatus and the method includes obtaining image data to be printed, performing dithering to achieve masking and halftone processing on the image data to generate print data, and controlling movement of a discharge head and discharge of ink based on the print data. The controlling includes increasing a ratio of a number of ink dots continuously discharged onto a recording medium in a grayscale on a shadow side to a total number of ink dots discharged onto the recording medium in one-time scanning by the discharge head in one line to be greater than a ratio of a number of ink dots continuously discharged onto the recording medium in a grayscale on a highlight side to the total number of ink dots.

公开(公告)号：US11623455B2

公开(公告)日：2023-04-11

申请号：US17494988

申请日：2021-10-06

申请人： Kimito Abe ,  Shotaro Takeuchi ,  Masanori Hirano ,  Takayuki Ito ,  Takahiko Sugiura ,  Daiki Marumo ,  Kyohei Hamada

发明人： Kimito Abe ,  Shotaro Takeuchi ,  Masanori Hirano ,  Takayuki Ito ,  Takahiko Sugiura ,  Daiki Marumo ,  Kyohei Hamada

IPC分类号： G06K15/10 ,  B41J2/21

摘要： A liquid discharge apparatus includes a color component divided data generation unit, a dot data generation processing unit, and a dot data segmentation processing unit. The color component divided data generation unit generates color component divided data from image data. The dot data generation processing unit applies a dot data generation mask to the color component divided data to generate dot data. The dot data segmentation processing unit applies a segmentation mask to the dot data to generate scan data. A width of the segmentation mask in a main scanning direction is different from a width of the dot data generation mask in the main scanning direction.

公开(公告)号：US11679603B2

公开(公告)日：2023-06-20

申请号：US17496801

申请日：2021-10-08

申请人： Yosuke Saito ,  Daiki Marumo ,  Takahiko Sugiura ,  Shotaro Takeuchi

发明人： Yosuke Saito ,  Daiki Marumo ,  Takahiko Sugiura ,  Shotaro Takeuchi

IPC分类号： B41J11/42 ,  B41J25/00 ,  B41J2/21 ,  B41J19/14

CPC分类号： B41J11/42 ,  B41J25/006 ,  B41J2/2132 ,  B41J19/142

摘要： A liquid discharge apparatus includes a conveyance roller, a liquid discharge head, and a control device. The control device controls the head to discharge liquid onto a medium X times in the main scanning direction and Y times in the sub-scanning direction and controls the roller such that a position of a droplet on the medium discharged by an m-th discharge and a position of another droplet on the medium discharged by an (m+Y)-th discharge are same in the sub-scanning direction, where m is an integer not smaller than one and not greater than ((X−1)×Y). Where P is a circumferential length of the roller and L is a difference in a conveyance distance in the sub-scanning direction when the m-th discharge is compared with the (m+Y)-th discharge, the following relation is satisfied:

L=(n+(Δθ/2π))×P,



where |π−Δθ|

公开(公告)号：US20220111659A1

公开(公告)日：2022-04-14

申请号：US17494988

申请日：2021-10-06

申请人： Kimito Abe ,  Shotaro Takeuchi ,  Masanori Hirano ,  Takayuki Ito ,  Takahiko Sugiura ,  Daiki Marumo ,  Kyohei Hamada

发明人： Kimito Abe ,  Shotaro Takeuchi ,  Masanori Hirano ,  Takayuki Ito ,  Takahiko Sugiura ,  Daiki Marumo ,  Kyohei Hamada

IPC分类号： B41J2/21

摘要： A liquid discharge apparatus includes a color component divided data generation unit, a dot data generation processing unit, and a dot data segmentation processing unit. The color component divided data generation unit generates color component divided data from image data. The dot data generation processing unit applies a dot data generation mask to the color component divided data to generate dot data. The dot data segmentation processing unit applies a segmentation mask to the dot data to generate scan data. A width of the segmentation mask in a main scanning direction is different from a width of the dot data generation mask in the main scanning direction.