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US 10,481,517 B2Granted
Cleaning member, charging device, and image forming apparatus
AssigneeFuji Xerox Co., Ltd.
InventorsJin Iwasaki, Ken Ozaki
Life of this patent
Estimating the term…
Abstract
A cleaning member includes plural bristles including tips that come into contact with an object to be cleaned having a surface including recesses and projections; and a brush base to which the bristles are attached. The bristles each have a non-circular cross-section including a projecting portion that projects toward an outer periphery, at least the projecting portion having a size such that the projecting portion is capable of entering the recesses in the object to be cleaned.
Claims17
A cleaning member comprising:
- a plurality of bristles of non-circular cross section, including tips that come into contact with an object to be cleaned having a surface including recesses and projections;
- and
- a brush base to which the bristles are attached,
- wherein each bristle has a longitudinal axis oriented in a direction from the brush base to the tip of the bristle and comprises a projecting portion that projects radially from the longitudinal axis a projecting length dl, wherein dl is greater than the maximum height Rz of the projections on the surface to be cleaned,
- wherein the tips are located at the outer periphery of the projecting portion of the bristles, and
- wherein, the expressions Sm>db and dc>db are satisfied, where Sm is an average value of a distance between the recesses and projections that are adjacent to each other, db is a maximum width of the projecting portion of each bristle in cross section, and dc is a diameter of each bristle in cross section.
3 more elements
A cleaning member comprising:
- a plurality of first bristles and a plurality of second bristles including tips that come into contact with an object to be cleaned having a surface including recesses and projections;
- and
- a brush base to which the bristles are attached,
- wherein the first and second bristles have different diameters,
- wherein the first bristles each have a thickness such that the first bristles do not reach bottoms of the recesses in the object to be cleaned,
- wherein each of the second bristles has a non-circular cross-section and a longitudinal axis oriented in a direction from the brush base to a tip of said second bristle and comprises a projecting portion that projects radially from the longitudinal axis a projecting length dl, wherein dl is greater than a maximum height Rz of the projections on the surface to be cleaned.
3 more elements
Dependencies are inferred from the claim text.