Image forming apparatus with lubricated developer carrying member
US9372434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2015 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Mar 3, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0806
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus configured to form an image with developer includes an image bearing member configured to bear an image of the developer, a developer carrying member configured to carry the developer to supply the developer to the image bearing member, and a developer supplying member configured to supply the developer to the developer carrying member. At least a part of a surface of the developer carrying member is coated with lubricant charged to the same polarity as the developer, and an absolute value of a charge amount per unit mass of the lubricant is larger than that of the developer. The image forming apparatus executes a first sequence of applying a potential difference between the developer supplying member and the developer carrying member before image formation to form an electric field to suppress movement of the charged lubricant from the developer carrying member to the developer supply member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.