Image forming apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 20, 2018
Grant Date -
Jan 18, 2018
app pub date -
Jun 12, 2017
filing date -
Jul 13, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An image forming apparatus includes a developing roller, a voltage applying part, a direct current correcting part and a correction switching part. The developing roller supplies a toner to an image carrier. The voltage applying part applies a superimposed voltage of an alternating current voltage and a direct current voltage to the developing roller. The direct current correcting part corrects the direct current voltage on the basis of variation of an alternating current flowing between the voltage applying part and the developing roller. The correction switching part switches the direct current voltage correcting part between an operating state and a non-operating state.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2017 Application Filing Year
- H04N Class
- 19055 Applications Filed
- 14406 Patents Issued To-Date
- 75.61 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H04N Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 20, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 20, 2030 |
