Month of March 2004

A concept is disclosed regarding the fabrication of print wheels, which could allow processes which have previously been considered unfeasible because of the small space between characters. The concept relates to a print wheel comprising two hub portions with each hub portion containing half the spokes together with...

With reference to the figure, a concept for a print wheel and print wheel cartridge is disclosed, which features keyed interlocks for positive print wheel location and retention while the print wheel is located within the cartridge. One wall of a print wheel cartridge 10 is disclosed in relationship to the print wheel...

A positive-working, accurate compression/friction lock, which is activated by a squeeze-4ockand squeeze-release mechanism, is disclosed for use on a daisy print wheel to alleviate any insertion and removal difficulties between the print wheel and the shaft of the print wheel positioning motor.

In high-speed electrophotographic development machines, it is especially important to remove any background particles which may be present after development. The figure illustrates a magnetic brush development system which utilizes an improved post-image reclaim system to remove unwanted background.

In high-speed electrophotographic development machines, it is especially important to remove any background particles which may be present after development. The figure illustrates a system which utilizes a minimum of development rolls when used in conjunction with a post-development image clean system.

In display systems utilIzing liquid4illed thin panel cells (such as those used in liquid crystal or electrophoretic display systems), providing uniform spacing between the cell walls is very important. Cell thicknesses range from 50j-mor less, typically being in the I0-l5-umrange over a relatively large area. The use...

One method of preparing an imaging member having photoconductive material in interlocking continuous paths of the type described in U.S. 3,787,208 (R. N. 3ones) having high gloss working surfaces is to utilize the technique of inverse casting. However, when this technique is used, some method of applying the...

Toner materials having low-bulk densities are obtained by depositing a magnetic or magnetically attractable metal in the presence of and onto low-bulk density silica particles. The low-bulk density, magnetic, composite toner particles are prepared by the solution phase thermal decomposition of transition metal...

A development system of a xerographic copier includes an applicator roil for applying liquid developer to a latent image on the surface of a photoreceptor drum. The applicator roll is biased against the photoreceptor and is movable towards and away from the photoreceptor (so that it may be disengaged from the drum...

A resilient roller having particular use as one of two co-operatingrollers of an xerographic development system, one of which is an applicator roller for liquid developer and the other of which carries an electrostatic latent image. The roller comprises a rigid core 1, e.g., of metal, wood, plastic or hard rubber, a...