公开(公告)号：US20210286276A1

公开(公告)日：2021-09-16

申请号：US17261899

申请日：2019-07-16

Applicant: KYOCERA Document Solutions Inc.

Inventor： Ikuo MAKIE ,  Masahito ISHINO ,  Toshiki FUJITA ,  Teppei SHIBUYA

IPC: G03G5/06 ,  G03G15/02 ,  G03G15/08 ,  G03G5/05 ,  H01L51/00

Abstract: An image forming apparatus includes an image bearing member, a charger, a light exposure device, and a development device. The charger charges a circumferential surface of the image bearing member to a positive polarity. The light exposure device exposes the charged circumferential surface of the image bearing member to light to form an electrostatic latent image on the circumferential surface of the image bearing member. The development device supplies a toner to the electrostatic latent image through application of a developing bias. The developing bias is a voltage of an alternating current voltage superimposed on a direct current voltage. The alternating current voltage has a frequency of 4 kHz or higher and 10 kHz or lower. The image bearing member includes a conductive substrate and a photosensitive layer of a single layer. The image bearing member satisfies formula (1) 0.60 ≦ V ( Q / S ) × ( d / ɛ r · ɛ 0 ) ( 1 )

公开(公告)号：US20210263434A1

公开(公告)日：2021-08-26

申请号：US17261986

申请日：2019-07-16

Applicant: KYOCERA Document Solutions Inc.

Inventor： Teppei SHIBUYA ,  Masahito ISHINO ,  Toshiki FUJITA

IPC: G03G9/08 ,  G03G21/00 ,  G03G5/06 ,  G03G5/05

Abstract: An image forming apparatus includes an image bearing member, a charger, a light exposure device, a development device, a transfer belt, a primary transfer device, a secondary transfer device, and a cleaning member. The cleaning member is pressed against a circumferential surface of the image bearing member and collects residual toner remaining on the circumferential surface of the image bearing member as a result of primary transfer of a toner. The transfer belt has a surface resistivity of at least 6 Log Ω and no greater than 11 Log Ω. A linear pressure of the cleaning member on the circumferential surface of the image bearing member is at least 10 N/m and no greater than 40 N/m. The image bearing member includes a conductive substrate and a photosensitive layer of a single layer. The image bearing member satisfies formula (1): 0.60 ≦ V ( Q / S ) × ( d / ɛ r · ɛ 0 ) ( 1 )

公开(公告)号：US20170023887A1

公开(公告)日：2017-01-26

申请号：US15208132

申请日：2016-07-12

Applicant: KYOCERA Document Solutions Inc.

Inventor： Satoru NAKAMURA ,  Teppei SHIBUYA ,  Ayaka KUROKAWA

IPC: G03G15/16

CPC classification number: G03G15/161 ,  G03G15/1615 ,  G03G2215/1661

Abstract: An image forming apparatus includes an intermediate transfer belt, a driving roller, a driven roller, a belt cleaning device, and a counter roller. Toner images formed on image carriers are transferred onto the intermediate transfer belt. The driving and driven rollers rotatably stretch the intermediate transfer belt. The belt cleaning device has a cleaning blade that removes residual toner adhered to the intermediate transfer belt. The counter roller is disposed facing the cleaning blade with the intermediate transfer belt interposed therebetween. The belt cleaning device is disposed at a position that is downstream of the driving roller in a rotation direction of the intermediate transfer belt but is upstream of the driven roller in the rotation direction of the intermediate transfer belt. A leading end edge portion of the cleaning blade is disposed upstream of a top of the counter roller in the rotation direction of the intermediate transfer belt.

Abstract translation: 图像形成装置包括中间转印带，驱动辊，从动辊，带清洁装置和反转辊。 在图像载体上形成的调色剂图像被转印到中间转印带上。 驱动辊和从动辊可旋转地拉伸中间转印带。 皮带清洁装置具有清洁刮板，其去除附着在中间转印带上的残留调色剂。 相对辊设置成面向清洁刮板，中间转印带置于其间。 带式清洁装置设置在驱动辊下游位于中间转印带的旋转方向的位置处，但是在中间转印带的旋转方向上位于从动辊的上游。 清洁刮板的前端部分沿着中间转印带的旋转方向设置在对置辊的顶部的上游。