Detecting device for an image forming apparatus
US7184674B2 · kind B2 · utility
16Cited by
25References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2004 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Jul 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G21/0029
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a detector that brings a cleaning blade made from elastomer in contact with a photoconductor to observe vibrations of the cleaning blade or a supporting member for the cleaning blade and calculates an index value based upon a normal condition using multi-dimensional data for each frequency obtained by Fourier transform of the vibrations as signals, thereby detecting abnormality of a condition of contact of the cleaning blade with the photoconductor such as the presence of adhesion material or damage to the photoconductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.