Roll supporting mechanism, image forming apparatus and assembly body
AssigneeFuji Xerox Co., Ltd.
InventorsSatoru Hori, Takafumi Yoneyama
Life of this patent
Estimating the term…
Abstract
A roll supporting mechanism rotatably supports an electrically-conducted roll. The roll supporting mechanism includes an electrically-conducting portion that contacts with a circumferential portion of an outer periphery of the electrically-conducted roll to conduct electricity to the electrically-conducted roll, and an insulating portion that contacts with the other circumferential portion of the outer periphery of the electrically-conducted roll at a contact portion smaller than a contact portion of the electrically-conducting portion and that is formed by an insulating material.
Claims11
A roll supporting mechanism rotatably supporting an electrically-conductive roll, the roll supporting mechanism comprising:
- an electrically-conductive portion that contacts with one circumferential portion of an outer periphery of the electrically-conductive roll to conduct electricity to the electrically-conductive roll,
- an insulating portion that contacts with another circumferential portion of the outer periphery of the electrically-conductive roll at a contact portion smaller than a contact portion of the electrically-conductive portion and that is formed by an insulating material, and
- a pressing member that presses the electrically-conductive portion against the electrically-conductive roll,
- wherein the pressing member presses the electrically-conductive portion against the electrically-conductive roll further toward the outer side in the rotation-axis direction of the electrically-conductive roll than the contact portion at which the electrically-conductive roll and the electrically-conductive portion contact with each other.
A roll supporting mechanism rotatably supporting an electrically-conductive roll, the roll supporting mechanism comprising:
- an electrically-conductive portion that contacts with one circumferential portion of an outer periphery of the electrically-conductive roll to conduct electricity to the electrically-conductive roll,
- an insulating portion that contacts with another circumferential portion of the outer periphery of the electrically-conductive roll at a contact portion smaller than a contact portion of the electrically-conductive portion and that is formed by an insulating material, wherein
- the electrically-conductive portion has a curved surface portion that contacts with the outer periphery of the electrically-conductive roll, and
- the insulating portion has a pair of contact portions, each of which contacts with the outer periphery of the electrically-conductive roll, and a curved surface portion whose curvature changes from one of the contact portions to the other of the contact portions along the outer periphery of the electrically-conductive roll and that does not contact with the outer periphery of the electrically-conductive roll.
Dependencies are inferred from the claim text.