Other

Nexpress Solutions, Inc.

Dean R Smith

Thomas Nathaniel Tombs

Joseph A Pavlisko

John W May

Arun Chowdry

Biao Tan

Diane Marie Herrick

Dennis J Grabb

Craig M Cody

Martin J Pernesky

Bonnie J Patterson

Earl Gregory Gomes

Bonnie A Maye

Robert Charlebois

Kenneth E Stack

David M Zacher

Dennis A Kenyon

An intermediate transfer member (IT) roller for use in an electrostatographic recording apparatus comprising a core member; a compliant layer covering the core member; and a stiffening layer covering the compliant layer, wherein the stiffening layer includes an endless belt that has a thickness in the range of greater than 50 and up to 1000 micrometers.

Intermediate transfer member having a stiffening layer and method of using

A particularly configured aperiodic grid for a grid-controlled AC corona charger for uniformly charging a dielectric member, of an electrostatographic reproduction apparatus, moving along a travel path in operative relation to the corona charger. The corona charger includes an insulating housing and an electrically biased grid, in which the grid transparency is larger than a nominal transparency at the upstream edge of the charger grid, transparency is nominal at the center of the grid, and transparency is smaller than nominal at the downstream edge of a charger grid. The invention, which has been demonstrated for negative primary charging, preferably uses a trapezoidal AC waveform having a DC offset for corona excitation, and may be practiced over a large range of process speeds. The invention is also practiced using trapezoidal waveforms having negative duty cycles in the range 50% (conventional AC) to 90% (negative DC). The range of the variation in grid transparency from the upstream grid edge to the downstream grid edge is far greater than in prior art commercial machines.

AC corona charger for an electrostatographic reproduction apparatus

Growing community of inventors

Rochester, NY, United States of America

Dean R Smith