Image forming apparatus
US11693350B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2022 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Jul 6, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/5037
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an amorphous silicon photosensitive member, a developing device including a developer carrying member that carries a two-component developer, and a control portion. When a potential difference V0−Vdc between the photosensitive member and the developer carrying member has a first potential difference at which the toner is moved from the developer carrying member to the photosensitive member and a second potential difference at which the toner is moved from the photosensitive member to the developer carrying member, the control portion adjusts V0 or Vdc so that the first potential difference and the second potential difference are equal in value and opposite in polarity, and a first development current |Ia| that flows at the first potential difference and a second development current |Ib| that flows at the second potential difference satisfy 1.9×10−2≥|Ib|/N≥5.7×103 [μA/mm].
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.