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Flexible Belt of Dotted Brittle Photoconductor Disclosure Number: IPCOM000060618D
Original Publication Date: 1986-Mar-01
Included in the Prior Art Database: 2005-Mar-09

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Tam, AC [+details]


For use in electrophotography, there is provided a flexible belt of dotted brittle photoconductor (i.e., photoconductive materials in small segments adhering onto a flexible belt). The photoconductor "dots" do not break or crack provided the width (b) the thickness (d) of a dot are small enough. The maximum longitudinal strain in the photoconductor dot is given by d/R in first approximation, and the maximum shear strain is given by b/2R in the first approximation where R is the radius of curvature of a curved belt. No breaking occurs where these strai are kept below 10-4 for photoconductive materials like silicon. In this case, for a roller radius of 10 cm, the photoconductive film thickness d should not exceed 10 microns, and the dot width b should not exceed 20 microns. Larger values are permitted for larger roller radius.