Image forming apparatus having a developing device including two electrode members, and further including a detection mechanism for detecting a capacitance between the two electrode members
US8965223B2 · kind B2 · utility
0Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Apr 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0848
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a holding unit configured to change a developing device to first and second orientations. Whether a developer in the developing device is unevenly distributed in a longitudinal direction of the developing device is detected based on a capacitance C1 between first and second electrode members in the first orientation and a capacitance C2 between the first and second electrode members in the second orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.