Developer system and method for providing a stable flow rate of developer in an electrographic printer
A developer system and method for an electrographic printer is provided. The system includes a magnetic brush having a magnetic core surrounded by a toning shell that rotatably conveys a layer of developer to the photoconductor element; a sump containing a reservoir of developer, and a self-metering...
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| Format | Patent |
| Language | English |
| Published |
24.07.2012
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| Online Access | Get full text |
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| Summary: | A developer system and method for an electrographic printer is provided. The system includes a magnetic brush having a magnetic core surrounded by a toning shell that rotatably conveys a layer of developer to the photoconductor element; a sump containing a reservoir of developer, and a self-metering conveyor roller having a maximum magnetic field strength on its outer surface of between about 100 and 1000 gauss, and a minimum magnetic field strength of no less than about 30% of the maximum field strength. A driving assembly rotates the conveyor roller at a saturation speed that saturates the capacity of the conveyor roller to deliver developer to the toning shell. The self-metering conveyor roller obviates the need for a metering skive to provide a stable flow rate of developer, and increases the printing speed of the printer by providing a higher flow rate of developer to a photoconductor drum of the printer. |
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