Toner supply method in picture image forming system and picture image forming system
US6347199B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2000 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Nov 6, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0888
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
There is provided a toner supply method in a picture image forming system having a plurality of picture image forming parts, each of which is designed to supply a toner from a toner cartridge to a developing part, the toner supply method having the steps of: detecting a cartridge empty when the level of the toner in the toner cartridge of any one of the picture image forming parts becomes an empty level; introducing a toner, which remains in the toner cartridge of each of the plurality of picture image forming parts, from the toner cartridge of a corresponding one of the plurality of picture image forming parts into a reserve tank portion, which is provided so as to correspond to each of the toner cartridges for housing therein a predetermined quantity of toner, when the cartridge empty is detected in any one of the picture image forming parts; detecting a toner empty when the level of the toner in the developing part becomes an empty level in any one of the picture image forming parts; and inspiring to replace all of the toner cartridges, for which a cartridge empty has been detected, with new cartridges when the toner empty is detected in any one of the picture image forming part…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.