Image forming apparatus with brush that collects material adhered to surface of image bearing member and that includes brush portion including threads having specified thread density
US12204270B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2023 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Nov 2, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0073
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a charging unit that charges an image bearing member, a developing unit that forms a toner image on an latent image formed on the image bearing member, a transfer unit that transfers the toner image onto a transfer material, a charge neutralizer that neutralizes a charge of the image bearing member downstream of a transfer portion and upstream of a charging portion in a rotating direction of the image bearing member, a conductive collecting unit that collects a material adhering on the image bearing member downstream of the transfer portion and upstream of the charging portion, wherein the developing unit collects residual toner on the image bearing member, an voltage application unit sets a potential difference between the voltage applied to the collecting unit and the surface electric potential of the image bearing member not more than a discharge threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.