IMAGE FORMING APPARATUS

摘要

An image forming apparatus includes an image bearing member, a transfer device, a first charging device, a static elimination device, a second charging device, a light exposure device, and a development device. The transfer device transfers a developer image of a first polarity onto a recording medium from the image bearing member by receiving a transfer bias of a second polarity. The first charging device charges a region of the image bearing member that has undergone transfer to the first polarity by receiving a first charging bias of the first polarity. An absolute value of the first charging bias is greater during charging of a first region of the image bearing member than during charging of a second region of the image bearing member. The first region includes a trailing end contact section. The second region does not include the trailing end contact section or a leading end contact section.

主权项

1. An image forming apparatus comprising:
an image bearing member configured to bear a developer image formed using a developer charged to a first polarity; a transfer device configured to form a nip in conjunction with the image bearing member and to transfer the developer image onto a recording medium from the image bearing member, as the recording member passes through the nip, by receiving a transfer bias of a second polarity opposite to the first polarity; a first charging device configured to charge a region of the image bearing member that has undergone transfer by the transfer device to the first polarity by receiving a first charging bias of the first polarity; a static elimination device configured to eliminate static from the region of the image bearing member that has been charged by the first charging device; a second charging device configured to charge the region of the image bearing member from which static has been eliminated by the elimination device to a specific electrical potential of the first polarity by receiving a second charging bias of the first polarity; a light exposure device configured to form an electrostatic latent image on the image bearing member by exposing the region that has been charged by the second charging device to light; and a development device configured to form the developer image on the image bearing member by developing the electrostatic latent image using the developer, wherein a first value corresponding to an absolute value of the first charging bias during charging of a first region of the image bearing member is greater than a second value corresponding to the absolute value of the first charging bias during charging of a second region of the image bearing member, the first region includes a section that has come into contact with a trailing end of the recording medium in terms of a conveyance direction thereof, and the second region does not include the section that has come into contact with the trailing end or a section that has come into contact with a leading end of the recording medium in terms of the conveyance direction.