Developing device for xerographic copying machines
Developing a xerographic toner image without the use of carrier beads is carried out by means of an applicator roller which transfers toner from a trough towards the image bearing medium via a scraper element mounted at the exit opening of the trough. An exact regulation of the amount of toner which...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | Developing a xerographic toner image without the use of carrier beads is carried out by means of an applicator roller which transfers toner from a trough towards the image bearing medium via a scraper element mounted at the exit opening of the trough. An exact regulation of the amount of toner which is transferred in this way may be carried out by providing a DC-voltage between the transfer roller and the scraper. |
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