Image forming apparatus and process cartridge
US7991327B2 · kind B2 · utility
0Cited by
18References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 27, 2007 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Oct 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, a photoconductor and a charge roller are in contact with each other and configured to rotate together at linear velocity v (millimeters/second). In this structure, a DC voltage is applied to the photoconductor and the charge roller while they are not rotating. In this state, parameters such as voltage, linear velocity, pressure contact force between the photoconductor and the charge roller are selected so that the ratio w/v (seconds), where w is the interval between two discharge marks occurring on surface of photoconductor, is between 0.005 to 0.035.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.