RETRACTION ACTIVATED CLEANER BRUSH ROTATION CLUTCHES
Original Publication Date: 1996-Dec-31
Included in the Prior Art Database: 2004-Apr-07
Xerox Disclosure Journal
Proposed is an actuating cam on a retraction camshaft that replaces solenoids on a drive clutch assembly for dual electrostatic brush cleaners. The cam actuates the clutch and reliably stops brush rotation without electrical signals when cleaner housings retract from a photoreceptor surface. The accompanying figure illustrates a cleaner drive system 10 suitable for an image-on image, multi-pass electrophotographic printing machine. Drive system 10 uses a machine drive 12, and three clutches 14, 16, and 18. Clutch 14 is a cam clutch made active by a first camshaft 24 and a second camshaft 26. Camshaft 24 retracts a first cleaner 20 while camshaft 26 retracts a second cleaner 22. A drive 16 rotates an electrostatic brush (not shown) in cleaner 20. Similarly, drive clutch 18 rotates an electrostatic brush (not shown) contained in cleaner 22. A coupling 30 transmits rotational motion to the drive system 10.