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US 5,349,428 AGranted
Cleaning apparatus for the reduction of blade tuck in removal of spot-causing agglomerate particles
AssigneeXerox Corporation
InventorJohn F. Derrick
Life of this patent
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AssigneeXerox Corporation
InventorJohn F. Derrick
Estimating the term…
A thin scraper blade member is arranged in interference with, and at a low angle of attack with respect to the photoreceptor so that a maximum shearing force can be applied by the blade to the spot-causing agglomerate particles for removal thereof. A slit extends laterally from one side of the blade and parallel to the edge of the blade, so that blade tuck occurrence is minimized. The slits serve to reduce the load and eliminate forces on the ends of the blade that cause the blade to tuck under. The slit also improves the range of tolerance of interference of the blade surface with respect to the photoreceptor surface before blade tuck occurs. A relatively low load is applied to the blade, so that the problems associated with the frictional sealing contact that must occur in the normal cleaning engagement of blades with a charge retentive surface are avoided.
A printing machine of the type having means for recording a latent image on a surface and means for developing the latent image with toner, wherein the improvement comprises a blade, interposed between the recording means and the developing means, having a free edge adapted to engage the surface to remove at least residual toner therefrom, said blade defining a slit extending inwardly from a side of said blade in a direction substantially parallel to the edge thereof so as to substantially prevent blade tuck.
A printing machine of the type having means for recording a latent image on a surface and means for developing the latent image with toner, wherein the improvement comprises a blade, interposed between the recording means and the developing means, having a free edge adapted to engage the surface to remove at least residual toner therefrom, said blade defining a slit extending inwardly from the side of said blade a distance in the range of approximately 3 mm to 7 mm in a direction substantially parallel to the edge thereof so as to substantially prevent blade tuck.
A cleaning apparatus for removal of spot causing agglomerate particles from a surface comprising a blade, having a free edge adapted to engage the surface to remove at least residual toner therefrom, said blade defining a slit extending inwardly from a side of said blade in a direction substantially parallel to the edge thereof so as to substantially prevent blade tuck.
A cleaning apparatus for removal of spot causing agglomerate particles from a surface comprising a blade, having a free edge adapted to engage the surface to remove at least residual toner therefrom, said blade defining a slit extending inwardly from the side of said blade a distance in the range of approximately 3 mm to 7 mm in a direction substantially parallel to the edge thereof so as to substantially prevent blade tuck.
Dependencies are inferred from the claim text.