公开(公告)号：US20140212185A1

公开(公告)日：2014-07-31

申请号：US14162089

申请日：2014-01-23

Applicant: Konica Minolta, Inc.

Inventor： Teruhiko FUJIKURA ,  Satoshi MIYAJIMA ,  Tadayuki UEDA ,  Yoshihito SASAMOTO ,  Eiji NISHIKAWA ,  Takanobu SHIKI ,  Akinori KIMATA

IPC: G03G15/01

CPC classification number: G03G15/5058 ,  G03G15/0189 ,  G03G2215/0132 ,  G03G2215/0161

Abstract: An image forming apparatus forms decision registration mark for deciding whether or not a color registration correction for correcting color shifts in the color image carries out on an intermediate transfer belt. The decision registration mark is formed by registering four color registration marks. Color registration sensors detect a detection width of the decision registration mark along a sub scanning direction. A control portion receives the detection width of the decision registration mark and decides whether or not the color registration correction carries out based on whether or not the detection width of the decision mark detected by the detection portion exceeds the period of reference time. When the detection width of the decision mark detected by the detection portion exceeds the period of reference time, the control portion carries out the color registration correction.

Abstract translation: 图像形成装置形成用于判定在中间转印带上执行用于校正彩色图像中的颜色偏移的颜色对准校正​​的判定登记标记。 通过登记四个颜色配准标记形成决定登记标记。 颜色配准传感器检测沿副扫描方向的判定对准标记的检测宽度。 控制部分接收判定登记标记的检测宽度，并且基于检测部分检测到的判定标记的检测宽度是否超​​过参考时间周期来判定颜色登记校正是否被执行。 当由检测部分检测到的判定标记的检测宽度超过参考时间周期时，控制部分执行颜色配准校正。