Einrichtung zum Austauschen von Träger eines Zweikomponenten-Entwicklers in elektrofotografischen Druck- und Kopiereinrichtungen

摘要

The method involves extracting a small quantity of developer from the developer station (10) at regular intervals during printing or copying and adding a quantity of fresh carrier approximately equal to the extracted amount. The extraction and addition steps are repeated depending on at least one parameter. The extracted developer is filtered and delivered to a collection container. The extraction takes place at the lowest point in the developing station.