Abstract: A method and apparatus for adjusting the bias of a cleaner used in a printer or digital copier such that the cleaner bias is optimized for the dominant color entering the cleaner.

Abstract: An apparatus for retracting and engaging the cleaning blade from the imaging surface and preventing copy reprint. At least one of two momentary switches are depressed by one of at least two lobes on a motorized cam. When the copying machine is in a standby condition, a computer controlled signal energizes the cam motor to advance the cam until the appropriate switch is depressed by the cam lobe.

Abstract: A high velocity air and stationary disturber cleaner for cleaning surfaces by drawing air under flexible film seals. A vacuum enclosed in a housing provides the suction force to draw the air under the seal, tangent to the surface to be cleaned, thus removing adhered particles. Disturbers are placed on the surface of the seals in contact with the surface to be cleaned to loosen particles to be removed. The brush density, the fiber length and a plastic film incorporated into the brush design are all ways to limit the amount of air flow through the bulk of the brushes for better cleaning efficiency.

Abstract: A conductive flexible cleaner brush belt having a plurality of detoning stations to remove particles from the brush fibers. At least one of the rollers about which the flexible belt brush is mounted has a small diameter for spreading the brush fibers apart. This spreading of the fibers creates a node affect as the fibers rebound, adjacent fibers open creating a moving node affect. This node affect facilitates detoning of the brush by an air vacuum as air removes the particles from the brush fibers.

Abstract: An apparatus for cleaning particles from the imaging surface and the ground strip located along the edge of the imaging surface. The conductive cleaning brush will short with the ground strip causing copy quality defects. An insulative brush donut is attached to the conductive cleaning brush for cleaning. The insulative brush donut will not short with the ground strip and the insulative brush prevents contact between the conductive fibers and the ground strip.

Abstract: A cleaning method and apparatus that provides continuous lubrication to the cleaning blade preventing blade failure. The continuous lubrication is provided by a foam lubricating roll located downstream from the cleaning blade, in the direction of motion of the imaging surface. The foam roll utilizes the waste toner cleaned from the imaging surface to lubricate the cleaning blade.

Abstract: An apparatus for detoning a cleaner brush by providing multiple opportunities for fiber detoning to take place. A screen detoning element located in the cleaner housing causes multiple interferences with the brush fibers bringing about a high degree of detoning of the cleaner brush.

Abstract: A method and apparatus involving the stopping and starting of the development of images, using hybrid development, to insure proper charging of the donor toner layer. A second (e.g. magnetic brush) roll is used to place toner on the donor roll or remove toner from the donor roll depending upon whether the development of images is stopped or started.

Abstract: A high velocity air and stationary disturber cleaner for cleaning surfaces by drawing air under flexible film seals. A vacuum enclosed in a housing provides the suction force to draw the air under the seal, tangent to the surface to be cleaned, thus removing adhered particles. Disturbers are placed on the surface of the seals in contact with the surface to be cleaned to loosen particles to be removed. The brush density, the fiber length and a plastic film incorporated into the brush design are all ways to limit the amount of air flow through the bulk of the brushes for better cleaning efficiency.

Abstract: A cleaning method and apparatus that provides lubrication to a secondary detoning roll in a cleaner brush system, thus reducing cleaning failures. The toner particles removed from the first detoning roll are transported to the second detoning roll. This allows lubrication of the second detoning roll and reduces the wear problem of the second detoning roll due to lack of lubrication.

Abstract: A cleaning system for increasing the packing density of a sump fill. The cleaning system has a blade having an acute angle for removing residual particles from the photoreceptor surface. The acute angle of the blade creates a build up of toner and other residual particles on the cleaning blade. A support platen for the imaging surface is opposed to the cleaning blade to prevent damage to the imaging surface. The build up of toner and other residual particles is guided to the sump by a baffle causing tighter packing of the particles in the sump.

Abstract: A high velocity air and stationary disturber cleaner for cleaning surfaces by drawing air under flexible film seals. A vacuum enclosed in a housing provides the suction force to draw the air under the seal, tangent to the surface to be cleaned, thus removing adhered particles. Disturbers are placed on the surface of the seals in contact with the surface to be cleaned to loosen particles to be removed. The brush density, the fiber length and a plastic film incorporated into the brush design are all ways to limit the amount of air flow through the bulk of the brushes for better cleaning efficiency.

Abstract: A cleaning apparatus having a flicker bar for detoning particles from the cleaning brushes. The flicker bar has an air channel integral therein. The solitary construction and the support bars in the top member of the flicker bar provides a uniform air channel width that is not compromised due to assembly tolerances.

Abstract: A high velocity air and stationary disturber cleaner for cleaning surfaces by drawing air under flexible film seals. A vacuum enclosed in a housing provides the suction force to draw the air under the seal, tangent to the surface to be cleaned, thus removing adhered particles. Disturbers are placed on the surface of the seals in contact with the surface to be cleaned to loosen particles to be removed. The brush density, the fiber length and a plastic film incorporated into the brush design are all ways to limit the amount of air flow through the bulk of the brushes for better cleaning efficiency.

Abstract: An apparatus for cleaning surfaces using uniform air flow through a manifold. The manifold includes an inlet, a collection duct, and an exhaust duct which interact to create uniform air flow through the manifold.

Abstract: An apparatus which cleans a moving imaging surface with a cleaning blade and automatically detects a failure of the cleaning blade. A failure sensing mechanism detects the cleaning blade failure and activates a blade indexing mechanism. The indexing mechanism removes the failed cleaning blade and positions a new cleaning blade in a wiping or doctoring mode frictional contact with the imaging surface for cleaning. A brush positioned upstream of the cleaning blade, in the direction of movement of the imaging surface, disturbs the particles thereon.

Abstract: A cleaning brush electrically biased with an alternating current removes discharged particles from an imaging surface. The particles on the imaging surface are discharged by a corona generating device. A second cleaning device including an insulative brush, a conductive brush or a blade, located upstream of the first mentioned brush, in the direction of movement of the imaging surface, further removes redeposited particles therefrom.

Abstract: A cleaner brush in which air flow passes through the first node of the standing wave of brush fibers to facilitate removal of particles therefrom. A flexible seal maximizes the air flow through the brush fibers.

Abstract: A cleaning blade holder apparatus that has at least one end clamping mechanism on one side of the cleaning blade holder body. The end clamping mechanism is connected to the blade holder body by an adjustable spacer (e.g. springs) and set screws. The adjustable spacer spring loads the end clamp against the holder body so that when the screws are withdrawn the coupled blade holder body and end clamp expand to stretch the blade laterally. This places the blade in tension and creates uniform contact between the imaging surface and the cleaning blade.

Abstract: A multi-blade holding apparatus that rotates from one blade to the next. The multi-blade holder holds the cleaning blades in place by using clamping inserts to hold the blades in place in the holder. The clamping inserts also allow for alignment and adjustment of the blades according to thickness. Spring loaded pins secure the clamping insert to the core of the multi-blade turret holder.