公开(公告)号：US20130208043A1

公开(公告)日：2013-08-15

申请号：US13833914

申请日：2013-03-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazuhisa Kawakami ,  Kenji Shigeno ,  Noriyuki Aoki ,  Yuji Kanome ,  Kosuke Yamamoto ,  Masakazu Tsukuda ,  Haruo Uchida ,  Hiroyuki Saito ,  Yoshiaki Suzuki

IPC: B41J29/393

CPC classification number: B41J29/393 ,  B41J11/0095 ,  B41J11/42

Abstract: A printing apparatus includes a plurality of image sensors imaging a sheet to be conveyed, and a direct sensor unit performing the signal processing of the outputs of the image sensors to detect the movement of the sheet. Here, the plurality of image sensors are provided on the carriage at least at two positions with at least the recording element array diagonally put between the two positions. The plurality of image sensors can image the sheet at two positions separated in a main scan direction and a sub-scan direction.

Abstract translation: 打印装置包括对要传送的片材进行成像的多个图像传感器，以及执行图像传感器的输出的信号处理以检测片材的移动的直接传感器单元。 这里，多个图像传感器至少在两个位置处设置在滑架上，至少记录元件阵列对角地放置在两个位置之间。 多个图像传感器可以在主扫描方向和副扫描方向上分离的两个位置对片材进行成像。