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IP.com Disclosure Number: IPCOM000026422D
Original Publication Date: 1991-Dec-31
Included in the Prior Art Database: 2004-Apr-05

Publishing Venue

Xerox Disclosure Journal


A blade assisted cleaner hybrid (BACH) providing enhanced cleaning capability in electrophotographic printing and copying machine cleaning systems is disclosed. Certain conventional photoreceptor cleaning systems comprise a cleaning blade 1 in contact with a belt-type photoreceptor 2 or cleaning blade 1 in combination with a brush cleaner 3, as shown in the figure. Occasionally the brush cleaner or other source may generate large (ca. 1 rnm) toner agglomerates or '%balls'' that may: interfere with normal development; create smears or smudges on the photoreceptor; or generate machine dirt which degrades print quality. In the BACH system, a conventional cleaning blade is modified with end magnets 4 or air jets 5 or both magnets and air jets in combination. The modified cleaning blade is particularly effective for controlling and containing the large toner agglomerates for subsequent removal from the photoreceptor by, for example, the brush cleaner. The end magnets 4 are preferred when the toner composition contains magnetic additives, for example, magnetite.