公开(公告)号：US11801696B2

公开(公告)日：2023-10-31

申请号：US17121963

申请日：2020-12-15

Applicant: BROTHER KOGYO KABUSHIKI KAISHA

Inventor： Shintaro Izoe ,  Yuji Nishigaki ,  Teruhito Hasegawa ,  Yuri Morishita

IPC: B41J15/04 ,  B41J15/02 ,  B65H23/185 ,  B65H16/02 ,  B65H16/10 ,  B65H23/192 ,  B65H23/182 ,  B65H23/00 ,  B65H23/14 ,  B41J15/16 ,  B65H26/08

CPC classification number: B41J15/048 ,  B41J15/02 ,  B41J15/165 ,  B65H16/02 ,  B65H16/103 ,  B65H23/005 ,  B65H23/14 ,  B65H23/185 ,  B65H23/1825 ,  B65H23/192 ,  B65H26/08 ,  B65H2511/14

Abstract: A sheet conveyor includes: a holder that detachably holds a sheet roll; a rotation measuring device that measures a rotation amount of the sheet roll; a conveyance roller that conveys a sheet pulled out from the sheet roll held by the holder; a tensioner that is provided between the holder and the conveyance roller and that contacts with the sheet pulled out from the sheet roll toward the conveyance roller; a position detector that detects a position of the tensioner; a motor that generates driving force for rotating the conveyance roller; and a controller that controls the motor. The controller estimates a diameter of the sheet roll based on a conveyance amount of the sheet caused by rotation of the conveyance roller, a rotation amount of the sheet roll measured by the rotation measuring device, and a position of the tensioner detected by the position detector.

公开(公告)号：US08833887B2

公开(公告)日：2014-09-16

申请号：US13626350

申请日：2012-09-25

Applicant: Brother Kogyo Kabushiki Kaisha

Inventor： Shintaro Izoe

IPC: B41J29/38 ,  B41J2/21 ,  H04N1/60 ,  B41J11/42 ,  G06K15/10 ,  H04N1/17 ,  H04N1/191

CPC classification number: B41J2/2132 ,  B41J11/42 ,  G06K15/105 ,  H04N1/17 ,  H04N1/1915 ,  H04N1/60

Abstract: A control device includes an execution unit, a determining unit, and a setting unit. The execution unit controls a printing unit to execute a multi-pass printing for a predetermined partial area of printing medium by executing sub scans and a prescribed number of times of main scans. In the main scan, a print head of the printing unit forms dots on the recording medium while being conveyed in a main scanning direction. In the sub-scan, the printing medium is conveyed in a sub-scanning direction. The determining unit determines an acceptable range based on an actual conveyance error in the sub-scanning direction. The setting unit sets the prescribed number to N when a representative value of predetermined partial area falls in the acceptable range, and sets the prescribed number to M being an integer greater than N when the representative value does not fall in the acceptable range.

Abstract translation: 控制装置包括执行单元，确定单元和设置单元。 执行单元控制打印单元通过执行子扫描和规定次数的主扫描来对打印介质的预定部分区域执行多遍打印。 在主扫描中，打印单元的打印头在主扫描方向上传送时在记录介质上形成点。 在副扫描中，打印介质沿副扫描方向传送。 确定单元基于副扫描方向上的实际输送误差来确定可接受范围。 当预定部分区域的代表值落在可接受范围内时，设定单元将规定数设定为N，并且当代表值不在可接受范围内时，将规定数设定为M为大于N的整数。