Title:
現像装置およびそれを備える画像形成装置
Document Type and Number:
Japanese Patent JP4990098
Kind Code:
B2
Abstract:
A developing device capable of adjusting to an appropriate toner density just after replacement of developer regardless of a humidity environment, and an image forming apparatus provided with the same. In a developing device, when developer is replaced, an initial toner density of developer for replacement is set so as to be equal to a toner density in its life or lower, and after replacement of the developer for replacement, a control section determines whether toner replenishment is necessary or not based on a detection value of a humidity sensor prior to a development operation.
Inventors:
Akitsugu Tomita
Application Number:
JP2007285516A
Publication Date:
August 01, 2012
Filing Date:
November 01, 2007
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G03G15/08
Domestic Patent References:
| JP9134066A | ||||
| JP1115256A | ||||
| JP2005258185A | ||||
| JP2207282A | ||||
| JP5249832A |
Attorney, Agent or Firm:
Keiichiro Saikyo