Charging apparatus determining a peak-to-peak voltage to be applied to a charging member
US6882806B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Apr 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0266
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging apparatus includes a charging member, contactably provided to a member to be charged, for charging the member to be charged; a voltage application device for applying alternating voltages having different peak-to-peak voltages to the charging member; and a determination device for determining a peak-to-peak voltage to be applied to the charging member with respect to a second area of the member to be charged, on the basis of a peak-to-peak voltage corresponding to a minimum current which is not less than a predetermined current of alternating currents through the member to be charged when the alternating voltages having the different peak-to-peak voltages are applied to the charging member with respect to a first area of the member to be charged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.