Charging device
US5146280A · kind A · utility
35Cited by
15References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1991 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Feb 19, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A charging device includes a charging member for electrically charging a member to be charged, a spacer for maintaining a clearance between said charging member and the member to be wherein the clearance is not less than 5 microns and not more than 300 microns. The charging member is supplied with a voltage having a waveform obtained as a sum of an AC voltage and a DC voltage, wherein a peak-to-peak voltage of the vibratory voltage is not less than twice the absolute value of the charge starting voltage relative to the member to be charged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.