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| Number | Title | Issue Date |
| 6901227 | Support bracket/backup shoe assembly for web-cleaning cartridge A cleaning station for removing particulate material from a moving web in an electrostatic printer/copier includes a customer-replaceable web-cleaning cartridge and a support bracket/backup shoe assembly. The latter serves to support the cleaning cartridge for movem... | 05/31/2005 |
| 6871037 | Method for calibrating or recalibrating a conversion factor for determining the distance covered by a print substrate in a printing machine A method for the calibration or recalibration of a conversion factor (web encoder resolution), used to determine the distance covered by a print substrate in a printing machine, in particular an electrophotographically operating printing machine, by the cycles of a ... | 03/22/2005 |
| 6845288 | Method and device for measuring a position of a passing sheet The position of sheets in a printing press is measured. A problem in transporting sheets through the printing press is how to guarantee the correct orientation and lay of the sheets, which must be guaranteed particularly in the printing operation. There is provided ... | 01/18/2005 |
| 6836635 | Method and control device for preventing register errors Printers wherein a snub pulley gripping the conveyor belt from below changes contact force, a first register error occurs; and due to change of the spacing between the image lines on the sheet change, a second register error occurs. To prevent the first register err... | 12/28/2004 |
| 6831818 | Current regulated voltage limited high voltage power supply for corona charger A method and apparatus for provision of a power supply that combines the advantages of current regulation with voltage limitation to enable corona chargers that can be run at higher current regulated set points for lower resistance sheets. The voltage limit will pro... | 12/14/2004 |
| 6821626 | Fluorocarbon random copolymer for use in toner release layer A fuser member comprising a core and a layer overlying the core, the layer including a cured fluorocarbon random copolymer having subunits of: —CH2CF2)x—, —(CF2CF(CF3)y—, or —(CF | 11/23/2004 |
| 6823165 | Method and apparatus for applying a constant load to a roller A method and apparatus for applying a predetermined load to a roller in a printer and/or copier apparatus comprises supporting a first member relative to a frame, the first member including a driver element; advancing the driver element under a first force to establ... | 11/23/2004 |
| 6817295 | Method and illustration device for register mark setting A method and device for register mark setting of a printing press for multicolor printing. A calibration run is used for the calibration of register frames, and the correction data produced by the calibration of the frame is used to calibrate the register mark keepi... | 11/16/2004 |
| 6819351 | Coarse and fine electronic bow correction for a writer Increasing the linearity of elements within a printhead by applying a coarse electronic adjustment to rearrange the electronic printing of data into the proper pixel line and then applying a fine electronic adjustment to reduce the bow error to fraction of a pixel l... | 11/16/2004 |
| 6813128 | High voltage bias feedback for diagnostic purposes A method and apparatus for identifying potential problems within systems having rotating biased components. The system employs diagnostics to the rotating biased components to provide status feedback to the machine's control unit when any type of bias fault has occu... | 11/02/2004 |
| 6797348 | Fuser member overcoated with fluorocarbon-silicone random copolymer containing aluminum oxide A fuser member comprising a core and a layer overlying the core, the layer including a fluorocarbon random copolymer, a curing agent which cures the fluorocarbon random copolymer, the cured fluorocarbon random copolymer having subunits of: —(CH | 09/28/2004 |
| 6799000 | Roller fuser system with intelligent control of fusing member temperature for printing mixed media types Internally-heated external rollers transfer heat rapidly to a fuser roller in an electrostatographic printer. Stored media process set points, input image content, and input media type data are used to regulate the heat transfer rate by varying the nip width between... | 09/28/2004 |
| 6769198 | Conditioning device to change the moisture content of printing stock A conditioning device to change the moisture content of printing stock, in which the stock is brought into contact with at least one endless cloth that absorbs moisture. The endless cloth is heated by heated transport rolls. A reduction of the moisture content contr... | 08/03/2004 |
| 6771916 | Air quality management apparatus for an electrostatographic printer An air quality management apparatus for use in a modular electrostatographic color printer. For air quality management a non-air-conditioned open-loop portion is provided for managing quality of air in a first interior volume, and an air-conditioned recirculation po... | 08/03/2004 |
| 6767092 | Ink jet imaging via coagulation on an intermediate member Apparatus and method of making an ink-jet-ink-derived material image on a receiver. An ink jet device is used to form a coagulable ink image on an intermediate member. Coagulates within the coagulable ink image are formed, and excess liquid is removed from the coagu... | 07/27/2004 |
| 6761446 | Ink jet process including removal of excess liquid from an intermediate member Apparatus and method of making an ink-jet-ink-derived material image on a receiver. An ink jet device is used to form a colloidal ink image on a member. The ink for use in the ink jet device includes an aqueous-based colloidal dispersion of particles and a nonaqueou... | 07/13/2004 |
| 6754457 | Pre-heater for an electrostatographic reproduction apparatus fusing assembly A pre-heater for a fusing assembly for an electrostatographic reproduction apparatus, in which an image-wise pattern of pigmented marking particles is fixed to a receiver member transported along a travel path in operative relation with said fusing assembly. The pre... | 06/22/2004 |
| 6745695 | Printing machine with friction driven image cylinder A printing machine having at least one printing unit whose image cylinder is driven by friction by an element to which the image is transferred. The influence of a change in the application of print is kept as small as possible, by the width of image cylinder and el... | 06/08/2004 |
| 6743560 | Treating composition and process for toner fusing in electrostatographic reproduction A composition for combating toner marking, in the form of a particulate material dispersed in release agent. ... | 06/01/2004 |
| 6745001 | Web conditioning charging station A method and apparatus for conditioning a moving transport web for neutralizing or modifying polar charge density and net charge density on the moving transport web included, for example, in an electrostatographic printer. The web conditioning includes a charging st... | 06/01/2004 |
| 6740462 | Method for fixation of toner on a support or printing stock A method for fixation of toner on a carrier or printing stock wherein the printing stock with toner is exposed to at least one radiation pulse or radiation flash of electromagnetic radiation and heated for melting of the toner, and a toner having a sharp transition ... | 05/25/2004 |
| 6736584 | Paper transportation trolley A paper transportation trolley with first guide members on the paper transportation trolley and second guide members on a coupling device of the printing machine for locking the paper transportation trolley to, and releasing it from the printing machine. The paper t... | 05/18/2004 |
| 6735407 | Corona chargers having consumer replaceable components A charging device assembly used within a reprographic machine having a hollow shell containing the charging device, an attachment mechanism that retains the charging device relative to the hollow shell in a predetermined position, a pair of end covers at either end ... | 05/11/2004 |
| 6735412 | Capillary micro-groove skive fingers With a fuser apparatus, for example having a pair of rollers in nip relation to transport a receiver member therebetween, to permanently fix a marking particle image to such receiver member, a skive mechanism for stripping a receiver member adhering to a fuser appar... | 05/11/2004 |
| 6734449 | Device for detecting the location of an edge of a transparent material, web edge control and printing press The invention relates to a device for detecting the location of an edge (2) of a transparent, anisotropic material (3,3′) comprising at least one sensor (1) with a light source (4), two polarization filters (6,7) with transmissio... | 05/11/2004 |
| 6735411 | Compliant intermediate transfer roller with flexible mount In a reproduction apparatus having a rotatable imaging roller upon which an image is formed, and a rotatable transfer roller for transferring an image from the imaging roller to a receiver member, a device for mounting the transfer roller to substantially compensate... | 05/11/2004 |
| 6731890 | Transfer of toner using a time-varying transfer station current An electrostatographic machine having a transfer station including a toner image carrier and a transfer member for electrostatic transfer of toner from the toner image carrier to a toner-image area on a receiver sheet in a nip formed between the toner image carrier ... | 05/04/2004 |
| 6727674 | Device for producing or controlling an alternating current in at least one inductive load A device for producing and controlling an alternating current with a direct current source in at least one inductive load, in particular for driving a stepper motor, preferably in microsteps. A device for producing and controlling an alternative current with a direc... | 04/27/2004 |
| 6723481 | Method for using hard magnetic carriers in an electrographic process Methods for development of an electrostatic image are disclosed that utilize developer compositions with hard magnetic carrier compositions which can provide improved development efficiencies and reduced amounts of image carrier pick-up. The methods utilize hard mag... | 04/20/2004 |
| 6724413 | Image width correction for LED printhead Correcting pixel inaccuracies in a writing device having a linear array elements wherein a mechanism to control temperature within a predetermined portion of the writing device is used to correct placement inaccuracies by first determining the inaccuracies with resp... | 04/20/2004 |
| 6721519 | Performance sensing cleaning device A cleaner for removing contaminates. Sensors detect a position of the cleaner with respect to a substrate, a proper rotation of components within the cleaner, and a proper electrical bias of the components. The components include a fiber brush, a detoning roller, an... | 04/13/2004 |
| 6721529 | Release agent donor member having fluorocarbon thermoplastic random copolymer overcoat An improved donor member for applying a toner release agent to a toned receiver comprises a support an intermediate layer disposed on the support, and an outermost layer formed from a cured composition comprising a fluorocarbon thermoplastic random copolymer, a curi... | 04/13/2004 |
| 6718879 | Process and device for determining registration errors Determining and correcting registration errors, which are caused by the rotational speed of a print cylinder changing because of a sheet passing between the print cylinder and a sheet transport conveyor belt. At least one first registration mark is applied onto the ... | 04/13/2004 |
| 6719423 | Ink jet process including removal of excess liquid from an intermediate member Apparatus and method of making an ink-jet-ink-derived material image on a receiver. An ink jet device is used to form a colloidal ink image on a member. The ink for use in the ink jet device includes an aqueous-based colloidal dispersion of particles and a nonaqueou... | 04/13/2004 |
| 6718285 | Operator replaceable component life tracking system Operator Replaceable Component (ORC) devices are employed; that enable an operator that is not a skilled field engineer or service technician, to perform maintenance on a digital printer, resulting in significantly higher uptime for the press. The ORC devices have a... | 04/06/2004 |
| 6716560 | Gloss-controlling toner compositions A particulate toner composition comprises a dry blend of a low viscosity polymeric particulate toner component having a first selected melt viscosity and a first selected melt elasticity, and a high viscosity polymeric particulate toner component having a second sel... | 04/06/2004 |
| 6698754 | Delivery table The invention relates to a delivery table (1) for flat material (2), in particular sheet paper, with a safeguard so that the material (2) does not slide on the delivery table (1). Exact and stable positioning of the flat material (2) is achieved in that t... | 03/02/2004 |
| 6697598 | Heating at least one material layer, with electromagnetic and/or acoustic waves at an angle of incedence so that heating takes place at least predominantly via the quantum tunnel effect A process for heating at least one second material layer (2), especially a toner layer which has been transferred to an image receiver substrate. Energy delivery from electromagnetic and/or acoustic waves (5) is incident from a first material layer (1) at... | 02/24/2004 |
| 6696158 | Fuser member with fluorocarbon thermoplastics coating A fuser member comprising a support and a layer overlying the support, the layer including a fluorocarbon thermoplastic random copolymer, a curing agent having a bisphenol residue, a particulate filler containing zinc oxide, an aminosiloxane, the cured fl... | 02/24/2004 |
| 6690899 | Conductive fiber brush cleaner having separate detoning and scavenging zones A conductive fur brush cleaning assembly for an image processing apparatus. The cleaning assembly has a casing, a plurality of rotating components within the casing and a plurality of sealing devices that divide the casing into a scavenging zone and a det... | 02/10/2004 |
