Image forming apparatus
US8895216B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 17, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/75
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an electrophotographic photoreceptor having a photosensitive layer, and a surface protective layer that contains fluororesin particles and a fluorinated alkyl group-containing copolymer; a charging unit that charges the surface of the electrophotographic photoreceptor; an electrostatic latent image forming unit that forms an electrostatic latent image; a developing unit that accommodates a developer, and develops the electrostatic latent image with the developer to form a toner image; a transfer unit that transfers the toner image to a recording medium; and a cleaning unit that removes the remained developer, wherein when the electrophotographic photoreceptor is rotated 50,000 times by repeating the formation of an image having image sections and non-image sections and having an image density of 7%, and then the surface of the electrophotographic photoreceptor is analyzed by X-ray photoelectron spectroscopy, the zinc coating ratio is in the range of from 50% to 100%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.