Image recording apparatus with a removable developing unit
US4942429A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1988 |
| Grant date | Jul 17, 1990 |
| Priority date | — |
| Expiry date | Nov 28, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0896
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A developing unit or similar recording unit which is removably mounted on an image recording apparatus is provided with a constant voltage device or similar level adjusting means which has a particular characteristic matching with recording color of the recording unit. The level adjusting means changes the level of a power supply (e.g. voltage) fed from a body of the apparatus to a level particular to the recording unit, i.e., to the color of toner stored therein. Identifying such a particular level, the apparatus body automatically sets up process conditions which are optimum for the identified level. Hence, the level detected by the apparatus body changes depending upon the kind of a recording unit actually mounted on the apparatus body, whereby optimum process conditions are set up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.