Image forming apparatus including two toner cleaning members
US7668478B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2007 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Aug 15, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/001
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus has: an image bearing member which bears a toner image; a transfer member which comes into pressure contact with the image bearing member and transfers the toner image on the image bearing member onto a recording material; a first cleaning member which electrostatically collects the toner on the transfer member; and a second cleaning member which electrostatically collects the toner on the first cleaning member, wherein when a ratio of an amount of toner which is adsorbed by the first cleaning member to an amount of toner on the transfer member is assumed to be α(%) and a ratio of an amount of toner which is adsorbed by the second cleaning member to an amount of toner on the first cleaning member is assumed to be β(%), α>90(%), β>90(%), and α≦β.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.