Xerographic charging and transfer using the pyroelectric effect

Details Xerographic charging and transfer using the pyroelectric effect Xerographic charging and transfer using the pyroelectric effect

1996-06-24

1997-10-14

Grimley, Arthur T.

Electrophotography

Image formation

Charging

347114, 361225, G03G 1502

Patent

active

056781458

ABSTRACT:
Pyroelectric materials are used to create net charge/surface potentials for use in xerographic charge and transfer steps. Heating and cooling a pyroelectric film, such as, polyvinylidene fluoride induces thermal expansion or contraction which create surface charge density changes that can be used to charge a photoconductive surface and/or transfer an image from a photoconductive surface to a copy sheet.

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patent: 5446615 (1995-08-01), Matsumoto et al.
patent: 5561502 (1996-10-01), Hirai et al.
patent: 5604569 (1997-02-01), Kubota

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