Title:
現像装置
Document Type and Number:
Japanese Patent JP6685773
Kind Code:
B2
Abstract:
A developing device includes a rotatable developer carrying member, first and second chambers configured to accommodate developer supplied to the developer carrying member, and first and second rotatable feeding members provided in the first and second chambers, respectively. A first communication port permits feeding of the developer from the second chamber to the first chamber, and a second communication port permits feeding of the developer from the first chamber to the second chamber. In addition, a toner content detecting portion includes a planar detecting surface including at least a planar coil generating a magnetic field and detects the toner content. The detecting surface is provided in the first communication port above a bottom of the first communication port and is disposed substantially in a central portion of the first communication port.
Inventors:
Shinya Suzuki
Application Number:
JP2016040381A
Publication Date:
April 22, 2020
Filing Date:
March 02, 2016
Export Citation:
Assignee:
Canon Inc
International Classes:
G03G15/08
Domestic Patent References:
| JP2013130755A | ||||
| JP62245152A | ||||
| JP5020067U | ||||
| JP2010122406A | ||||
| JP2008170624A | ||||
| JP2008203064A |
Foreign References:
| US20120308269 | ||||
| CN206331239U |
Attorney, Agent or Firm:
Chikajima International Patent Office
Kazuo Chikajima
Kazuo Chikajima