Image forming apparatus
US10261451B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2017 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Dec 12, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/1615
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The image forming apparatus includes a photosensitive drum, an intermediate transfer belt, a secondary transfer roller, a secondary transfer power supply, an opposing roller through which a current flows through the intermediate transfer belt when the voltage is applied to the secondary transfer roller by the secondary transfer power supply, metal rollers electrically connected to the opposing roller and contacting an inner peripheral surface of the intermediate transfer belt in vicinities of the photosensitive drums, a current restriction circuit connected to a path of a current flowing from the opposing roller to the metal rollers when the voltage is applied to the secondary transfer roller by the secondary transfer power supply, the current restriction circuit configured to restrict the current from the opposing roller to the metal rollers to a predetermined current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.