Imaging member
AssigneeXerox Corporation
InventorsSatchidanand Mishra, Kathleen M. Carmichael, Yuhua Tong, Anthony M. Horgan, Edward F. Grabowski, Richard L. Post, Robert C. U. Yu, Dennis J. Prosser, Edward Domm, Min-Hong Fu
Life of this patent
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Abstract
An imaging member comprising a barrier or under-layer intermediate a photogenerating layer and charge transport layer to reduce charge deficiency spots. The barrier under-layer comprises a film forming polymer binder selected from a conductive polymer binder, a non-conductive polymer binder, or mixtures thereof. Optionally, the barrier layer can include a small amount of a charge transport material.
Claims20
An imaging member comprising:
- an optional substrate;
- a charge generating layer;
- a charge transport layer disposed about the charge generating layer;
- and
- a barrier layer disposed intermediate the charge generating layer and the charge transport layer, wherein the barrier layer comprises a film forming polymeric binder material selected from a conductive binder, a non-conductive binder, and mixtures thereof.
An imaging member comprising:
- an optional substrate;
- a photogenerating layer;
- a barrier layer disposed over the photogenerating layer;
- and
- a charge transport layer disposed over the barrier layer;
- wherein the barrier layer comprises (i) a polymeric binder material selected from a conductive polymer binder, a non-conductive polymer binder, and mixtures thereof, and (ii) a charge transport material in an amount of from about 0 to about 40% by weight of the barrier layer.
An imaging member comprising:
- an optional substrate;
- a charge generating layer;
- a first layer comprising a first film forming polymer binder selected from a non-conductive polymer binder, a conductive polymer binder, and mixtures thereof;
- a charge transport layer;
- and
- a second layer comprising a second film forming polymer binder selected from a non-conductive polymer binder, a conductive polymer binder, and mixtures thereof;
- wherein the first layer is disposed intermediate the charge generating layer and the charge transport layer, and the second layer is disposed over the charge transport layer.
Dependencies are inferred from the claim text.