Image forming apparatus
US5907739A · kind A · utility
14Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Feb 27, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/75
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus has an image bearing member, a charging member which contacts with the image bearing member to charge it, detecting device for detecting an electric current flowing through the charging member when a predetermined voltage is applied thereto, and a display device for displaying an information about a life of the image bearing member in conformity with the result of detection by the detecting device. The display device can display at least two different kinds of information corresponding to at least two different electric currents detected by the detecting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.