公开(公告)号：US08938190B2

公开(公告)日：2015-01-20

申请号：US13531984

申请日：2012-06-25

申请人： Hiroshi Hagiwara ,  Takamitsu Soda ,  Akinobu Hirayama ,  Hiromitsu Kumada ,  Yoshiko Kubo ,  Takateru Ohkubo

发明人： Hiroshi Hagiwara ,  Takamitsu Soda ,  Akinobu Hirayama ,  Hiromitsu Kumada ,  Yoshiko Kubo ,  Takateru Ohkubo

IPC分类号： G03G15/01 ,  G03G15/00 ,  G03G15/045 ,  G03G15/043 ,  H04N1/50 ,  G03G21/08

摘要： An image forming apparatus includes a process unit arranged in the vicinity of the circumference of each photosensitive member and the process unit is configured to act on the photosensitive member in forming a toner image thereon. The image forming apparatus detects a time period since a laser beam emission unit emits a laser beam to the photosensitive member to form an electrostatic latent image for detection until the formed electrostatic latent image for detection or a toner image based on the electrostatic latent image for detection reaches the process unit, and performs color misregistration correction control based on the result of detection. In this case, a control unit at least decreases the light amount of a pre-exposure LED when the electrostatic latent image for detection passes through a position facing the pre-exposure LED.

公开(公告)号：US20110299872A1

公开(公告)日：2011-12-08

申请号：US13212272

申请日：2011-08-18

申请人： Takamitsu Soda

发明人： Takamitsu Soda

IPC分类号： G03G15/02

CPC分类号： G03G21/0064 ,  G03G2215/0129

摘要： Provided is an image forming apparatus having a charge brush for charging a transfer residual toner remaining on an intermediate transfer member. A toner is adhered to the charge brush. While a charge voltage is applied to the charge brush, the toner adhered to the charge brush is attracted by an electric field onto the charge brush. However, when the charge voltage is not applied to the charge brush, the toner adhered to the charge brush is moved to the intermediate transfer member. When a subsequent toner image is formed on the toner adhered to the intermediate transfer member, the quality of the subsequent image is deteriorated. Accordingly, the charge voltage is applied to the charge brush when an intermediate transfer area to which the toner image is transferred onto the intermediate transfer member immediately afterward faces the charge brush.

摘要翻译： 提供了一种图像形成装置，其具有用于对残留在中间转印部件上的转印残留调色剂进行充电的电荷刷。 调色剂粘附到电荷刷上。 当对电荷刷施加充电电压时，粘附到电荷刷的调色剂被电场吸引到电荷刷上。 然而，当充电电压未施加到电荷刷时，粘附到电荷刷的调色剂被移动到中间转印部件。 当在附着到中间转印部件上的调色剂上形成随后的调色剂图像时，后续图像的质量劣化。 因此，当调色剂图像立即转印到中间转印部件上的中间转印区域面对电荷刷时，充电电压被施加到电荷刷。

公开(公告)号：US07010254B2

公开(公告)日：2006-03-07

申请号：US10743405

申请日：2003-12-23

申请人： Akihiko Takeuchi ,  Tatsuya Kobayashi ,  Naoki Enomoto ,  Takehiko Suzuki ,  Takamitsu Soda

发明人： Akihiko Takeuchi ,  Tatsuya Kobayashi ,  Naoki Enomoto ,  Takehiko Suzuki ,  Takamitsu Soda

IPC分类号： G03G15/01

CPC分类号： G03G15/0131 ,  G03G15/0121 ,  G03G15/0173 ,  G03G15/0184 ,  G03G2215/0106

摘要： An image forming apparatus includes an image carrying member and an intermediate transfer body in an endless shape movable and receivable of toner images from said image carrying member at first and second transfer positions. The following relationship is satisfied where a distance from the first transfer position to the second transfer position along the moving direction of the intermediate transfer body is denoted as Lab, a circumference of the intermediate transfer in the moving direction is denoted as Lr, and a length of the toner image formed on the intermediate transfer body is denoted as Lm−Lr−Lm>Lab.

摘要翻译： 图像形成装置包括图像承载构件和中间转印体，该中间转印体以能够在第一和第二转印位置从所述图像承载构件移动并接收调色剂图像的环形形状。 满足以下关系，其中将沿着中间转印体的移动方向的从第一转印位置到第二转印位置的距离表示为Lab，将移动方向上的中间转印的周长表示为Lr，长度 形成在中间转印体上的调色剂图像表示为Lm-Lr-Lm> Lab。

公开(公告)号：US20050078972A1

公开(公告)日：2005-04-14

申请号：US10921183

申请日：2004-08-19

申请人： Takamitsu Soda ,  Tatsuya Kobayashi

发明人： Takamitsu Soda ,  Tatsuya Kobayashi

IPC分类号： G03G21/14 ,  G03G15/01 ,  G03G15/16 ,  G03G21/00 ,  G03G15/00

CPC分类号： G03G15/168 ,  G03G2221/0005

摘要： The image forming apparatus includes a first image bearing member, a movable second image bearing member, a charging device and a voltage applying device, wherein a toner image is transferred from the first image bearing member to the second image bearing member at a first transfer portion, the toner image is transferred from the second image bearing member to a transfer material at a second transfer portion, the charging device is opposed to the second image bearing member at a downstream side of the second transfer portion and at an upstream side of the first transfer portion with respect to a moving direction of the second image bearing member, the voltage applying device switches a DC voltage from a first voltage to a second voltage which is opposite in polarity to the first voltage, the switching from the first voltage to the second voltage is executed at every predetermined number of transfers of the toner image from the second image bearing member to the transfer material, and the predetermined number varies depending on an image forming condition.

摘要翻译： 图像形成装置包括第一图像承载部件，可动第二图像承载部件，充电装置和电压施加装置，其中调色剂图像在第一转印部分从第一图像承载部件转印到第二图像承载部件 调色剂图像从第二图像承载部件转移到第二转印部分的转印材料，充电装置在第二转印部分的下游侧和第二转印部分的上游侧与第二图像承载部件相对， 转印部分相对于第二图像承载部件的移动方向，电压施加装置将DC电压从第一电压切换到与第一电压极性相反的第二电压，从第一电压切换到第二电压 在从第二图像承载部件到转印材料的调色剂图像的每个预定数量的转印执行电压，以及t 他的预定数量根据图像形成条件而变化。