Transfer device and image forming apparatus

摘要

A transfer device comprises a freely rotatable transferring member contacting an image bearing member to form a transfer nip therebetween; a transfer bias applying member to apply a first bias created by superimposing an alternating current component on a direct current component to the transferring member to transfer a toner image borne on the image bearing member to a recording medium in the transfer nip; and an applicator to apply a protective agent to a surface of the transferring member.

主权项

1. A transfer device comprising:
a freely rotatable transferring member contacting an image bearing member to form a transfer nip; a transfer bias applying member to transfer a toner image borne on the image bearing member onto a recording medium in the transfer nip by applying a first bias that is created by superimposing an alternating current component on a direct current component; and an applicator to apply a protective agent to a surface of the transferring member, wherein the transfer bias applying member selectively applies either the first bias or a second bias composed only of the direct current component, wherein the applicator applies more protective agent when the first bias is applied than when the second bias is applied.