Image forming apparatus featuring a defined relationship among an image length, transforming member length, and length of an electric field area
US7317884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Jan 8, 2008 |
| Priority date | — |
| Expiry date | Dec 23, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0177
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus is provided with an image bearing member bearing a toner image thereon, a toner image forming device for forming the toner image on the image bearing member, a transferring member for transferring the toner image borne on the image bearing member to a recording medium being moved, a cleaning member for electrostatically removing the toner adhering to the transferring member, and an electric field forming device for forming an electric field between the transferring member and the cleaning member, wherein when the greatest length of the image formable by the toner image forming device in a direction orthogonal to the direction of movement of the recording medium is defined as L1, and the length of the transferring member is defined as L2, and the length of an area in which the electric field is formed is defined as L3, the relation that L2>L3>L1 is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.