Charging device, image forming apparatus, and charging unit
US9152073B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Sep 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/206
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging device includes a discharge electrode configured to charge a surface of an image carrier; a charging device body including an opening portion that is provided so as to surround the discharge electrode and be opposed to a surface of the image carrier across a longitudinal direction of the discharge electrode; a charging duct member that is provided so as to surround at least the entire opening portion and configured to introduce and exhaust an airflow within the surrounded area; an intake unit configured to generate an airflow to be guided into the charging duct member; and an exhaust unit configured to exhaust the airflow guided. The charging duct member includes an airflow wall forming unit for covering, with an airflow wall, the entire opening portion from an upstream end to a downstream end in a rotation direction of the image carrier at the opening portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.