Charging device and image forming apparatus incorporating same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 31, 2016
Grant Date -
Sep 3, 2015
app pub date -
Feb 19, 2015
filing date -
Mar 3, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A charging device includes a charger and a power supply circuit. The charger is disposed opposing a latent image bearer. The power supply circuit applies to the charger an alternating voltage obtained by superimposing a pulsating voltage on a direct-current voltage. The alternating voltage generates normal discharge from the charger to a surface of the latent image bearer and reverse discharge from the surface of the latent image bearer to the charger. A pulse ON time of a voltage component toward a reverse discharge side relative to a desired surface potential Vde of the latent image bearer is shorter than a pulse ON time of a voltage component toward a normal discharge side relative to the desired surface potential Vde of the latent image bearer.
First Claim
Other Claims data not available
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 4 Citation Count
- G03G Class
- 11.67 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 30, 2027 |
