Toner Level Sensing
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
As toner is cleaned from the photoconductor of a xerographic copier, th residual toner is collected in a trough and then transported to a collection bottle by operation of an auger. When the bottle fills, and the delivery end of the auger becomes packed with toner, the compaction of the toner physically moves a member which actuates a magnetic reed switch or a mechanical switch. This switch operation indicates that the copier should not be used until the toner collection bottle has been replaced.