Abstract:
Printing of information with a distinct tactile feel can be accomplished by electrographic techniques. Such electrographic printing includes the steps of forming a desired print image, electrographically, on a receiver member utilizing standard size marking particles; and in areas of the formed print image, forming raised information by printing at least a first raised image and a second raised image. The print and raised images are fixing on the receiver member. The raised images are applied using toner particles having diameters substantially larger than the diameters standard size toner particles used for applying the print image.
Abstract:
Printing of information with a distinct tactile feel can be accomplished by electrographic techniques. Such electrographic printing includes the steps of forming a desired print image, electrographically, on a receiver member utilizing standard size marking particles; and in areas of the formed print image, forming raised information by printing at least a first raised image and a second raised image. The print and raised images are fixing on the receiver member. The raised images are applied using toner particles having diameters substantially larger than the diameters standard size toner particles used for applying the print image.
Abstract:
A method and system for printing adjustable gloss image documents using a variety of toners where some toners have a relatively low melt viscosity and others have a relatively high melt viscosity. These toners are co-printed prior to fixing, on the receiver proximate to and overlying at least a portion of each other.
Abstract:
Electrophotographic printing of one or more layers of toner using a method of enhancing fuser offset latitude to enable the printing of a wide range of toner mass laydown using electrophotography. This method encompasses the steps of forming multicolor toner images, determining the amount of clear overcoat mass laydown as a function of the color mass laydown or non-raised mass laydown and fusing the clear toner overcoat and the multicolor toner image at a fusing temperature determined by the maximum total mass laydown and the nip width to provide good adhesion to the receiver member while optimizing fuser offset latitude.
Abstract:
The present invention provides a double-sleeved roller for use in an electrostatographic machine. The double-sleeved member includes a cylindrical rigid core member. A removable inner sleeve member (ISM) is provided that includes a compliant layer that surrounds and intimately contacts the rigid core member. A removable electrically conductive outer sleeve member (OSM) such that the OSM surrounds and intimately contacts said ISM wherein the ISM and OSM are removable or mountable simultaneously.
Abstract:
A method for coating a liquid composition from an applicator to a moving web supported by a backing roller, characterized by the steps of a) conveying the web in a partial wrap around the backing roller of diameter equal to or greater than 10 cm, the backing roller being provided with a conductive, relieved surface; b) fabricating the relieved surface with a pattern that provides venting, the pattern having a geometry and depth such that the electrostatic force at the coating point does not vary by more than a factor of about ten, the pattern covering at least 30% or more of the width of the web; c) providing an electrostatic field at the coating point; and d) coating at a web speed greater than or equal to 75 meters/minute.
Abstract:
A member for electrically cooperating with a conductive support surface to attract charged toner particles from the surface towards the member is disclosed. The member comprises a conductive substrate capable of supporting a uniform bias potential thereon and at least one coating comprising a resilient elastomeric polyurethane. The polyurethane is formed by reacting:(a) a polyisocyanate prepolymer and(b) a hardening mixture comprising:(i) a polyol and,(ii) as a conductivity control agent in the form of a phosphonium tetrahaloferrate salt represented by the formula: ##STR1##
Abstract:
Devices and analytical techniques are disclosed for measuring the spatial profile of permittivity of a material by multiple wavenumber interrogations. Electrode structures are disclosed which define a number of different fundamental wavelengths (or wavenumbers). Spatially periodic interrogation signals (of temporary frequency ".omega.") from the electrode structures are attenuated to varying degrees by the material undergoing analysis, depending upon the wavenumber ("k"), thereby permitting the derivation of a composite dielectric profile.
Abstract:
A system for joining a first sheet (10) to a second sheet (11), wherein the first and second sheets have a first layer and a second layer, including a first rigid plate (6); a gas absorbing layer on the first rigid plate; positioning the second sheet having a first layer (52) and a second layer (54) on the gas absorbing layer (8); wherein an edge of the of the first sheet abuts an edge of the second sheet; a second rigid plate on top of the first and second sheet; a press for applying pressure to the first sheet edge and second sheet edge; and a laser for welding the edge of the first sheet to the edge of the second sheet through the second rigid plate.
Abstract:
A method of removing charge from a charged sheet prior to stacking the charged sheet is disclosed. The method includes moving the charged sheet through a set of nipped rollers while a first roller has an AC voltage applied thereto so that a first side of the charged sheet is in contact with the first roller and has its charge substantially dissipated, whereby charge substantially remains on a second side of the charged sheet in contact with a second roller. The method further includes using at least one non-contact charge removal device to remove charge from the second side of the charged sheet, and stacking the discharged sheet.