公开(公告)号：US20080145079A1

公开(公告)日：2008-06-19

申请号：US11953132

申请日：2007-12-10

申请人： Myong-hun CHO

发明人： Myong-hun CHO

IPC分类号： G03G15/10

CPC分类号： G03G15/5058 ,  G03G15/0194 ,  G03G2215/00059 ,  G03G2215/0138 ,  G03G2215/0161

摘要： An image forming apparatus includes a transport unit comprising a transport belt which transports a printing medium in a transport direction along a transport path, an image forming unit which transfers toner to the printing medium to form an image, a density evaluation unit which is provided on the transport path of the transport belt and evaluates a density of the image formed by the image forming unit, and a controller which controls the image forming unit to form a test image which has a length in a transport direction that is determined by a position deflection of the transport belt, controls a characteristic of the image forming unit based on a density evaluation of the test image, and controls the transport unit to make the transporting speed of the transport belt a predetermined value or less during the density evaluation of the test image by the density evaluation unit.

摘要翻译： 图像形成装置包括：传送单元，包括沿传送路径沿传送方向传送打印介质的传送带;将调色剂传送到打印介质以形成图像的图像形成单元;密度评估单元，设置在 输送带的输送路径，评价由图像形成单元形成的图像的浓度，以及控制器，其控制图像形成单元，以形成测试图像，所述测试图像的输送方向上的长度由位置偏移确定 根据测试图像的密度评估来控制图像形成单元的特性，并且在测试图像的密度评估期间控制传送单元使传送带的传送速度为预定值或更小 通过密度评估单元。