Smart donor rolls using individually addressable...

Details Smart donor rolls using individually addressable... Smart donor rolls using individually addressable...

2008-01-24

2011-11-01

Porta, David (Department: 2884)

Electrophotography

Image formation

Development

C399S252000, C399S279000, C492S018000, C492S053000, C029S895000

Reexamination Certificate

active

08050601

ABSTRACT:
Exemplary embodiments provide a roll member that includes one or more piezoelectric tape and methods for making and using the roll member. The piezoelectric tape can be flexible and include a plurality of piezoelectric elements configured in a manner that the piezoelectric elements can be addressed individually or as groups with various numbers of elements in each group. In an exemplary embodiment, the disclosed roll member can be used as a donor roll for a development system of an electrophotographic printing machine to create controlled and desired toner powder cloud for high quality image development, such as an image on image development in a hybrid scavengeless development (HSD) system.

REFERENCES:
patent: 5523827 (1996-06-01), Snelling et al.
patent: 5809385 (1998-09-01), Snelling et al.
patent: 5965220 (1999-10-01), Schopping
patent: 6361483 (2002-03-01), Kirchner
patent: 6385429 (2002-05-01), Weber et al.

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