Xerox Corporation

Other

Gerald M Garavuso

Michael John Martin

Robert P Siegel

Russell J Sokac

Lloyd W Durfey

Steven Robert Moore

Kathleen M Laffey

Youti Kuo

Raghulinga R Thettu

Jacob N Kluger

Vinod K Agarwal

Maurice F Holmes

Robert P Rebres

Kathleen M Martin

Larry A Kovnat

David J Lemmon

Anthony J Marino

William D Perun

Russel J Sokac

Diane S Rogerson

Shwu-Jian Liang

Steve R Moore

Dar Lyn Porchan

Troy Shinbrat

Janice F Szocki Brooks

A furnace for molding glass blanks includes a housing having a series of electrical heating stations and a rotary door adapted to receive glass blanks for processing. The furnace also includes a rotary turntable for receiving the glass blanks and a steering coil positioned to direct the glass blanks in a spiral pattern as they are heated at the electrical stations, a paddling platform for manual shaping, and a pressing station for pressing the glass blanks into a predetermined configuration.

Energy efficient, electric rotary furnace for glass molding (repressing)

An approach suited for use with an arrangement including an image processing apparatus and a server, with the server being disposed remotely of the image processing apparatus, is provided. In practice, a user accesses the remotely disposed server from the image processing apparatus by entering an appropriate personal identification number and selecting a job ticket from a directory listing the job tickets resident at the server. One of the job tickets is then selected and transmitted across the network from the server to the image processing apparatus. A job is then programmed at the image processing apparatus with the selected job ticket.

Network printing system for programming a print job by selecting a job

A sheet feeding and separating apparatus for feeding sheets from a stack by exerting a drive force against the top sheet. The sheet is urged off the stack by a nudger roll toward a retard nip formed where a feed roll contacts a retard roll. The retard roll is movable relative to the feed roll, and thus is capable of producing drive forces of varying magnitude at the retard nip to propel a sheet toward the copying mechanism. A controller signals the nudger roll to urge a sheet off the stack and then monitors a sensor to determine whether the sheet passes through the retard nip. A misfeed condition occurs when the sensor fails to detect a sheet within a predetermined length of time. In response, the controller moves the retard roll toward the feed roll to increase the drive force exerted on the sheet. The retard roll is further adapted to detect the occurrence of a multifeed when multiple sheets contact the retard nip. In response, the controller moves the retard roll away from, but remaining in contact with, the feed roll to decrease the drive force exerted on the sheet, thereby permitting individual sheets to pass through freely.

Apparatus and method for sheet feeding and separating using retard roll

An automatic recovery apparatus reduces the number of shut downs due to fuser misstrips in an electrophoto-graphic device. A fuser misstrip occurs if the lead edge of a copy sheet does not emerge from the fuser nip. The fuser roller and the photoreceptor drive roller are stopped. These rollers are driven in the reverse direction until the copy sheet is released from the fuser. The rollers are then driven in the forward direction so that the copy sheet is re-fused. This automatic recovery apparatus is used for a photoreceptor misstrip. If the copy sheet remains attached to the photoreceptor belt after passing the stripping zone, it will jam in the cleaner module. If a sensor detects the copy sheet is still attached to the belt after the stripping zone, then the photoreceptor belt is reversed and the stripping procedure is repeated.

Method and apparatus for a self-recovering fuser and image receptor

A sheet path velocity profile signature analysis apparatus which utilizes output from various idler rolls throughout the machine paper path to detect abnormalities. The constantly monitored and instantaneous velocity readings are compared with a base line velocity signature established at the factory. If the constantly monitored velocity profile is not within the pre-established operating parameters as set at the factory, automatic machine adjustment procedures are initiated and/or automatic service alerts are issued. The ability to constantly monitor the velocity profile throughout the machine enables preventative maintenance to occur and worn drive rolls, idler rolls and other transport devices can be replaced before catastrophic failure.

Paper path signature analysis apparatus

A composite friction feed roll includes one material which feeds fresh paper well and another material which reliably feeds paper which has passed through fusing and has oil on its imaged surface. Such a roll will feed deplex and fresh paper or inserts equally reliably. Suitable material combinations would be silicone rubber which handles fused copies with ease, but has limited life feeding fresh or virgin paper because it collects fibers from fresh paper, and isoprene which is long lived handling fresh paper, but is rapidly contaminated by fuser oil. In the steady state condition, silicone regions will be primarily active in feeding duplexed paper while the isoprene oil contaminated, while in the plain paper feeding case, isoprene regions will be primarily responsible for feeding while the silicone becomes paper debris contaminated.

Friction retard feeder with a composite feed element

In an electrophotographic printing apparatus having a fuser roll and a second roll forming a nip therebetween for the passage of a copy sheet therethrough, each copy sheet is inserted through the nip so that at least one edge of the copy sheet is skewed relative to the direction of motion of the fuser roll.

Fusing of copy sheets in skewed arrangement in an electrophotographic

A magnetic clutch provides an adjustable slip torque. A housing, having an outer surface of a predetermined frictional coefficient, is disposed around a portion of a shaft, and is rotatable relative to the shaft An outer magnetic member is disposed on the inner surface of the housing, and an inner magnetic member is attached to the shaft and disposed within the housing. The slip torque is adjusted by varying the amount of surface area exposure between the inner magnetic member and the outer magnetic member.

Magnetic clutch with adjustable slip torque

A hydrid nudger roll for use in a friction retard feeder includes alternating elastomeric and studded rolls positioned on a support shaft. The outer surface of the elastomeric rolls extends beyond the tips of the studded rolls, but when the elastomeric rolls are deformed against a stack of sheets due to normal force, the tips of the studded rolls extends beyond the outer surface of the elastomeric rolls.

Hybrid nudger roll

The invention includes a sheet feeding apparatus having a sheet pocket with a first end and a second end, rollers spaced a predetermined distance from the first end and including a plurality of sheet-feeder nips, one of the nips being an inlet nip for directing a sheet into the first end of the sheet pocket, and at least one other of the nips being an exit nip for directing a sheet out of the first end of the sheet pocket, and bypass rollers for selectively permitting a sheet to exit the sheet pocket via the second end thereof.

Multiple output sheet inverter

A document handling apparatus includes a friction retard feeder for feeding documents from a stack. The friction retard feeder has a feed roll and a concave surfaced retard pad that inhibits stubbing of documents during feeding.

Friction retard feeder with a concave retard pad

A device for extracting sheets seriatim from the top of a stack of sheets and feeding them to a downstream sheet-using device, includes a pivoted tray which supports a stack of sheets; a nudger roll disposed at a fixed location above the tray and with which the top sheet of the stack can be brought into contact to slide the top sheet in a sheet-feed direction by frictional engagement when the nudger roll is rotated in a feed direction; a retard pad mounted for pivotal movement about an axis at or near the movable end of a first lever of which its other end is mounted for pivotal movement about a fixed support, the pad being biased into frictional engagement with either the nudger roll or a separate sheet-feed roll, the retard pad having movable with it a first arm of which movement about the pivotal axis of the pad is effective to increase the mechanical bias on a pivotally-mounted second lever adapted to urge the tray towards the nudger.

Sheet feeder devices

A dual vacuum belt transport system for compiling copy sheet sets in a compiling tray includes a first vacuum belt that picks up a copy sheet and moves it to a forward registration wall for front edge alignment, and releases it. A second vacuum belt then picks up the copy sheet and moves it to a side registration wall to complete the compiling sequence. Each vacuum belt is angled with respect to a vertical plane in order to drive each copy sheet into a corner formed by the intersection of the forward and side registration walls.

Pneumatic compiling apparatus

An arrangement for transporting a book facedown onto an and off of a copier includes a platen transport and a belt transport positioned on opposite sides of a vacuum plenum that is used to peel the bottommost page from a book to turn the same as the book is moved back and forth between the transport platen and belt member. As the book moves the vacuum plenum a by predetermined amount, it contacts a roller and is supported on the roller as it is transported onto and off of the platen by the platen transport. The roller reduces the friction between the pages of the book and the platen.

Platen transport and vacuum plenum for book copying

An apparatus for feeding individual substrates from the top of a stack of substrates upon demand includes a paddle wheel having paddles that are semi-cylindrical. The paddles buckle upon contact with the substrates rather than bending and thereby providing reduced normal force sensitivity to paddle deflection and reduced pressure since the force of buckling is a function of the paddle cross-section rather than paddle length for all areas of the paddles except near the paddle wheel hub. The semi-circular blades reduce misfeeding and multifeeding while having an extended wear life.

Growing community of inventors

Rochester, NY, United States of America

Gerald M Garavuso