Transfer roller, transfer device, and image forming apparatus
US12153361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2023 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Mar 13, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/1614
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transfer roller includes a shaft portion rotatable in an axial direction and an elastic portion covering an outer peripheral surface of the shaft portion, wherein an identification portion is provided on the outer peripheral surface of the shaft portion. On one side in the axial direction, the identification portion includes a first end portion located on a center side of the shaft portion and a second end portion located on an end side of the shaft portion in the axial direction. In a direction from the center side to the end side, the first end portion is located on an outer side of an end portion of a maximum sheet-passing area of a transferring material, and the second end portion is located on an inner side of the maximum sheet-passing area and on an outer side of an end portion of the elastic portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.