Abstract: A method for enabling a printing machine having a customer billing interface to bill the customer for different types of printing operations performed includes programming variable rates for printing operations into the printing machine. With receipt of a machine enable signal from the customer billing interface, the printing operation is initiated. The printing machine determines the type of printing operation performed and sends the corresponding billing signal to the customer interface.

Abstract: A networked parasitic user interface terminal capable of deriving power from a host. The user terminal, adapted for use in a system for receiving, analyzing, and managing diverse information obtained from a variety of source documents, is structurally mounted to a host structure, such as an electrical appliance or a wall, and receives its power parasitically from its host. The user interface is connected to a digital network via a communications link and receives information to display from a remote processor. The user interface terminal does not receive any data directly from its host.

Abstract: An apparatus for removing electrostatically charged particles from a surface such as the backside of an image bearing belt of the type found in an electrostatographic printing apparatus or a drive roller supporting an image bearing belt. The apparatus includes an electrically biased brush having a substrate and a multiplicity of conductive fibers extending outwardly to contact the surface to be cleaned, a supporting device, and a cleaning device for removing collected particles from the brush. The supporting device for the brush rotates, thereby moving the brush and causing clean fibers to contact the surface to be cleaned.

Abstract: A method of registering a moving sheet with an image developed on a surface includes the steps of transferring at least the portion of a developed test area overlapping the sheet edge to a sheet, sensing the untransferred portion of the test area, and measuring at least one dimension of the untransferred test area to determine the image to sheet registration.