Xerox Corporation

Brian J Gillis

Tab Alan Tress

Nathan Eymard Smith

Allen J Thompson

Michael A Fayette

Christopher A Jensen

Malcolm Davidson

Santokh Singh Badesha

Varun Sambhy

Robert Tuchrelo

David S Derleth

Kevin H Taft

Robert S Pawlik

James Padula

John R Washington

John R Lambie

Scott M Potter

Peter J Cresswell

Thomas C Fowler

Donald N Rechlin

James D Quigley

Lindsay J Goggins

The present teachings include a flow coating solution, a fuser member and an image forming apparatus. The fuser member includes a substrate and flow coating solution applied onto the substrate. The outer layer includes a flow coating solution including a fluoroelastomer, a nucleophilic crosslinking agent and a non-functional polydimethylsiloxane having the formula: wherein n is from 100 to 20,000. The flow coating solution includes an effective solvent selected from the group consisting of N-methyl 2-pyrrolidone, dimethyl formamide, and dimethyl sulfoxide.

Fuser, method of fuser manufacture and composition

An improved fuser includes a heater using a solid-state heater element with high frequency field propagation to provide an effective increase in the energy conduction through the fusing belt allowing increased throughput rates over conventional conduction systems. The system employs a solid-state heater with internal circuitry to drive a high frequency field though the fuser belt to the elastomeric top coat, which is laced with high frequency receptors. The belt is then heated directly on the surface bypassing thermal conduction interfaces and is also simultaneously heated by conduction from the waste energy of the heater element.

Field enhanced solid-state heater element useful in printing applications

A fusing apparatus includes a heater that heats a fuser belt at a nip between the fuser belt and a pressure roll through which a sheet is conveyed to permanently fuse an image onto the sheet. The heater has a silicon wafer with a smooth side that contacts and heats the fuser belt at the nip, and circuitry at a second side, with the circuitry generating heat through the silicon wafer to heat the fuser belt. The circuitry may include a plurality of heat producing integrated circuits etched in the silicon wafer, with each heat producing integrated circuit configured to heat the fuser belt. Each integrated circuit may self-control its amount of heat produced to the silicon wafer, for example, by automatically switching back and forth between a heat-on-state and a heat-off-state to maintain a desired temperature within the silicon wafer that heats the fuser belt.

Solid state fuser heater and method of operation

A fuser heater within a printing device includes a substrate with conductive traces and a resistive trace having a first end and a second end. The resistive trace is connected to the conductive traces at each of the first end and the second end and forms an electrical connection between the conductive traces and the resistive trace. A first strip is printed on the substrate using a first metal ink. A second strip is printed on the substrate using a second metal ink. The second strip is in contact with the first strip. The first metal ink is different from the second metal ink. The first strip and the second strip form a thermocouple. The thermocouple is operatively attached to the conductive traces. A controller operatively attached to the thermocouple controls the temperature of the fuser heater.

Printed thermocouples in solid heater devices

A fuser includes a fuser roll and a pressure roll that forms a nip between the rolls through which a sheet is conveyed to permanently fuse an image onto the sheet. The fuser roll includes a heater element having a single resistive trace, a common trace tapped to a first side of the resistive trace continuous across the resistive trace, and first and second conductive traces tapped to ends of the resistive trace at a second side of the resistive trace opposite the first side. The first and second conductive traces are physically separated and conductively segmented by a conductive gap between the conductive traces. The resistive trace includes a separation gap extending through the resistive trace continuously from the second side of the resistive trace at the conductive gap towards the first side of the resistive trace to prevent current flow between the segmented conductive traces.

Fuser for electrophotographic printing having resistive trace with gap

An improved fuser includes a heater which provides uniformity at the surface of a fuser roll that contacts an imaged sheet. The heater is configured to include a common tap at the center of a single heating trace. This allows for the benefits of a single trace configuration well while simultaneously providing a dedicated common line that does not have to be switched around.

Method for temperature leveling and/or resistance increase in solid heaters

Apparatuses useful for printing and methods of treating marking material on media are provided. An exemplary embodiment of the apparatuses useful for printing includes a roll including a first outer surface; a continuous belt including an inner surface and a second outer surface forming a nip by contact with the first outer surface, the belt being driven to rotate by rotation of the roll; a heater disposed inside of the belt and comprising a first heating surface contacting the inner surface of the belt at the nip; and a heating fin in thermal contact with the heater, the heating fin including a second heating surface extending circumferentially in contact with a pre-nip portion of the inner surface of the belt. Thermal energy is conducted from the heater to the heating fin. The second heating surface pre-heats the pre-nip portion of the belt before the pre-nip portion is rotated to the nip, and the first heating surface of the heater heats the pre-heated, pre-nip portion at the nip.

Apparatuses useful for printing and methods of treating marking material on media

A segment and heater fuser roll is disposed for a printing device including a plurality of heating elements in a preselected order relative to a voltage return. A plurality of voltage taps are disposed for applying selected power to ones of the plurality of heater elements. The heater elements vary in power density per unit length.

Apparatus and method for a multi-tap series resistance heating element in a belt fuser

An improved fuser includes a heater that enhances uniform heating by altering the localized resistance which alters the localized power output of a resistive trace at the point of contact with a conductor trace in order to provide extra heating and thereby compensate for heat loss at the resistive trace/conductor trace junction.

Growing community of inventors

Penfield, NY, United States of America

Brian J Gillis