Xerox Corporation

E.i. Dupont De Nemours and Company

Anders J Wellings

Charles W Robertson, Jr

Tab Alan Tress

Donald H Brunk

David J Regester

Robert M Simms

Dana Smith

A disclosure is made of automatic apparatus for processing transfer membranes to which a blot pattern of molecular fragments has been bound so that the pattern may be optically visualized. The apparatus is characterized by at least one open processing cell and two systems for pumping; one selectively controlled to direct fluid to and from functional units and one which is closely coupled to the cell and recirculates the fluid in the cell to assure adequate and thorough treatment therein by uniform fluid flow across both sides of the membrane.

Apparatus for fluid treatment of framed membranes

The present invention relates to methods and devices for creating high shear forces to disperse high solids toner into a working developer solution. The high solids toner have a toner particle concentration of at least 40% by weight of the working developer solution. An image forming device having such dispersion system includes a latent image device for creating a latent image; a developer device for developing the latent image; a transfer device for receiving the developed latent image onto a predetermined image medium; a developer supplying device for recirculation of a working developer solution through the developer device; a replenishing device for supplying concentrated developer solution preferably at a rate equivalent to a consumption rate of the working developer solution in the developer device; and a dispersion device for dispersing the concentrated developer solution from the replenisher device into the working developer solution of the developer supplying device. The dispersion device includes a rotatable member, a mechanism for rotating the rotatable member, and a stationary member for creating a high shear force at a contact area between the rotatable and stationary members, the high shear force dispersing the concentrated developer solution into the developer solution.

Methods and devices for dispersion of high solids toner

A toner image is transferred from an electrostatographic imaging member to an image receiving substrate. A biased transfer member in the form of a roller or a belt forms a nip with the imaging member. A compliant intermediate transport member passes through the nip for receiving a toner image from the imaging member. The intermediate transport member is preferably semiconductive, and self-discharges in less than one second. In a preferred process for transferring the toner image to a conductive conformable intermediate, both the intermediate transport member and the biased transfer roller are conductive.

Intermediate transfer member having a low surface energy compliant

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Newark, DE, United States of America

Anders J Wellings