APPLYING DEVICE AND IMAGE FORMING APPARATUS

摘要

An applying device includes an applying member and a contact member. The applying member applies voltage to an image bearing member and has an elastic layer and an endless surface layer. The elastic layer is disposed facing the image bearing member, is rotatable about a rotation axis, and is composed of a foam material. The surface layer surrounds an outer periphery of the elastic layer, is supported by the elastic layer in a non-bonded state, and is rotatable together therewith. The contact member comes into contact with the surface layer at an upstream side, in a rotational direction of the applying member, relative to an imaginary line segment connecting a rotation axis of the image bearing member and the rotation axis of the applying member, so as to apply tension to the surface layer at a contact position between the image bearing member and the applying member.

主权项

1. An applying device comprising:
an applying member that applies voltage to an image bearing member and has an elastic layer and an endless surface layer, wherein the elastic layer is disposed facing the image bearing member, is supported in a rotatable manner about a rotation axis, and is composed of a foam material, and wherein the surface layer is disposed so as to surround an outer periphery of the elastic layer, is supported by the elastic layer in a non-bonded state, and is rotatable together with the elastic layer; and a contact member that comes into contact with the surface layer at an upstream side, in a rotational direction of the applying member, relative to an imaginary line segment that connects a rotation axis of the image bearing member and the rotation axis of the applying member, so as to apply tension to the surface layer at a contact position between the image bearing member and the applying member.