Vacuum coupling arrangement for applying vibratory motion to a f

Details Vacuum coupling arrangement for applying vibratory motion to a f Vacuum coupling arrangement for applying vibratory motion to a f

1990-07-02

1991-01-22

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355271, 355296, G03G 1514

Patent

active

049874560

ABSTRACT:
A resonator suitable for generating vibratory energy is arranged in line contact with the back side of charge retentive member bearing an image on a surface thereof, in an electrophotographic device, to uniformly apply vibratory energy to the charge retentive member. The resonator includes a vacuum producing element, a vibrating member, and a seal arrangement. When the vibratory energy is to be applied to the charge retentive surface, a vacuum is applied by the vacuum producing element at the point of contact with the charge retentive surfaces resonator, to draw the surface into intimate engagement with the vibrating member,and seal arrangement. The invention has application to a transfer station of enhancing electrostatic transfer for toner from the charge retentive surface to a copy sheet, and to a cleaning station, where mechanical vibration of the surface will improve the release of residual toner remaining after transfer.

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Xerox Disclosure Journal; "Floating Diaphragm Vacuum Shoe"; vol. 2; No. 6; Nov./Dec.; 1977; pp. 117-118.

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