Abstract: A method for cutting belt material to accurate dimensions and for forming the mating edges of a puzzle cut joint for joining the ends of the belt material to form a continuous belt for use in a document processing application. The belt material is maintained in accurate registration a punch press by optical sensors at each station. A vacuum pickup is constructed to move the belt material from a precision cutter to a punch press and maintains the material in tensioned condition to facilitate accurate operation of the punch press.

Abstract: A method and apparatus for and aggregates in a fluid medium. The present invention employs an ultrasonic device to efficiently breakup particle agglomerates by driving the ultrasonic signal over a small range of frequencies around the acoustic slow wave frequency of the saturated agglomerate. At this frequency, the fluid vibrates out of phase with the solid and is forced out through the pore structure in the agglomerate. This relative fluid motion to exert high viscous stresses at the particle-particle contact points which leads to fracture of the agglomerate and the redispersion of the individual particles. The apparatus includes a dispersing vessel containing aggregates of particles in a fluid, a sonic member for applying an ultrasonic signal in said dispersing vessel for separating the aggregates to form dispersed particles.

Abstract: A development system is which includes a flexible belt having a magnetic surface. The belt has a static magnetic field pattern for transporting developer material to a development zone; and a magnetic system for generating a superimposed alternating magnetic field to agitate developer material in the development zone in order to produce a charged toner cloud intended for the non-interactive development of latent electrostatic images.

Abstract: A self biasable transfer roll system for transferring toner particles from an image support surface to a copy substrate, including a conformable roll member, comprising a core having a layer of compressible material radially surrounding the core, and a peripheral surface layer comprising piezoelectric material positioned along a circumference of the roll member for generating an electric field when deformed.