Image forming apparatus with developing member that supplies toner to surface of image bearing member to form toner image
US11988979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2022 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Sep 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/757
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus comprising: an image bearing member, a developing member that forms a toner image with a toner including a metal soap having a polarity opposite to that of the toner, a supply member that supplies the toner to the developing member, and a control unit that executes a metal soap supply operation of supplying the metal soap from the developing member to the image bearing member when an operation other than the image forming operation is executed, wherein the metal soap supply operation includes a first mode and a second mode, and a potential difference between the supply member and the developing member, which causes an electrostatic force in the direction from the supply member to the developing member to act on the metal soap, is smaller in the metal soap supply operation in the second mode than in the first mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.