Charging device and image forming apparatus
AssigneeFuji Xerox Co., Ltd.
InventorJin Iwasaki
Life of this patent
Estimating the term…
Abstract
A charging device includes a charging member including an endless cylindrical flexible base member and conductive contactors provided along an outer peripheral surface of the base member, the charging member being attracted to a charged member in a pressure applied state by electrostatic attraction force responsive to a charging voltage applied to the charging member or by the electrostatic attraction force and self-weight of the charging member, the charging member charging the charged member; and a voltage applying member that applies the charging voltage to the charging member.
Claims12
A charging device comprising:
- a charging member configured to charge a charged member and comprising:
- an endless cylindrical flexible base member;
- a single shaft provided inside the flexible base member and configured to support the flexible base member;
- and
- a plurality of conductive contactors comprising conductive fibers provided along an outer peripheral surface of the base member, a first end of a conductive fiber of the conductive fibers affixed to the base member, the conductive fiber extending in a slanted direction with respect to a radial direction of the single shaft such that a second end opposite to the first end of the conductive fiber is provide downstream from the first end along a rotational direction of the charged member and along a rotational direction of the flexible base member;
- and
- a voltage applying member configured to apply a charging voltage to the charging member,
- wherein a diameter of the outer surface of the shaft is smaller than an inner diameter of the flexible base member, and
- wherein the charging member is rotated in a direction opposite to the rotational direction of the charged member.
A charging device comprising:
- a charging member configured to charge a charged member and comprising:
- an endless cylindrical flexible base member;
- a shaft provided inside the flexible base member and configured to support the flexible base member;
- and
- a plurality of conductive contactors comprising conductive fibers provided along an outer peripheral surface of the base member, a first end of a conductive fiber of the conductive fibers affixed to the base member, the conductive fiber extending in a slanted direction with respect to a radial direction of the single shaft such that a second end opposite to the first end of the conductive fiber is provide downstream from the first end along a rotational direction of the charged member and along a rotational direction of the flexible base member;
- and
- a voltage applying member configured to apply a charging voltage to the charging member,
- wherein a diameter of the outer surface of the shaft is smaller than an inner diameter of the flexible base member, and
- wherein the shaft is provided at a preset distance from the charged member, and
- wherein the charging member is rotated in a direction opposite to the rotational direction of the charged member.
Dependencies are inferred from the claim text.