Image forming apparatus
US12259677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2024 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Apr 22, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/0047
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a rotatable image bearing member, a developing member to develop an electrostatic latent image at a developing portion, a transfer member to transfer a developer image to a recording member at a transfer portion; and a brush provided with a plurality of base materials contacting the image bearing member at downstream of the transfer portion and upstream of the developing portion in a rotational direction of the image bearing member. The developer remaining on the surface of the image bearing member is collected in the developing portion. An average distance between base materials of the brush with respect to a rotational axis direction of the image bearing member is larger than an average particle diameter of the developer, and is equal to or less than a length corresponding to a special frequency visually recognizable by a user when the image formed by the image forming apparatus is observed by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.