Toner end detecting method for an electrophotographic copier
US5182600A · kind A · utility
27Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1991 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Nov 29, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/5041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A toner end detecting method for an electrophotographic copier which allows the copier to operate even when a toner end condition is detected by accident or when a developing device included in the copier and being used is replaced with another storing a toner of the same color while a toner end condition is not reached. When the power source of the copier is turned off and then on or when the developing device is set on the copier, the method executes a recovery procedure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.