摘要:
Coated fuser members such as a fuser roller, pressure roller, or fuser belt, and the method of making the coated fuser members are disclosed. The release coating comprises an outermost layer of fluoropolymer resin uniquely bonded to a fluoroelastomer layer by means of a fluoropolymer-containing polyamide-imide primer layer.
摘要:
This invention provides a fuser member comprising a core having a polymeric coating wherein said wrinkle index of said fuser member is less than 75, said wrinkle index (WI) being calculated by the following formula: ##EQU1## where: S is the stiffness of the core in megaPascals (MPa); T is the thickness of said polymeric coating in millimeters (mm); and H is the hardness (Shore A) of the polymeric coating.
摘要:
A fuser debris inhibiting system and apparatus using an impregnated cleaning web. This web is impregnated with EDTA or its salts. The web can contact the fuser member directly or can contact external heat rolls which in turn contact the fuser roll. The delivery of EDTA to the surface of the fuser member substantially inhibits the formation of contaminants thereon.
摘要:
A temperature control device, for controlling, at a desired set point, the temperature of an environment or member being heated or being cooled, is particularly suitable for controlling the temperature of a heated electrostatographic fuser roller. The device includes a large tolerance, low precision temperature sensing element that is encapsulated in a compound that has a known and precise solid/liquid phase change melting or freezing point approximately at such a desired temperature set point. The device also includes a control unit which during a warmup or a cool-down period for the environment or member, for example, the heated fuser roller, repeatedly monitors the temperature of the encapsulated sensing element in order to detect the phase change point, for example, the melting point of the encapsulating compound. The phase change point, when so detected, is then utilized by the control unit to responsively self-calibrate the control device, thereby substantially increasing its overall precision in controlling the temperature of the environment or member.
摘要:
In accordance with the invention, there are image forming apparatus, fuser members, and methods of making fuser members. The method of making a fuser member can include providing a substrate having a longitudinal axis, providing a first flow coating solution including a fluoroelastomer polymer, and providing a second flow coating solution including a crosslinking agent. The method can also include mixing the first flow coating solution and the second flow coating solution to form a third flow coating solution and forming a continuous fluoroelastomer layer over a surface of the substrate by applying the third flow coating solution onto the substrate in a spiral pattern, wherein the crosslinking agent concentration can be varied along the longitudinal axis by changing the ratio of the first flow coating solution and the second flow coating solution in the third flow coating solution.
摘要:
A fuser roller system, utilized with electrographic or xerographic copying or printing devices, multiple fuser rollers, each of which includes a machine readable device (MRD) having identification data. The system also includes at least one MRD reader and at least one computer having a database of fuser rollers. The system facilitates use of custom fuser rollers by determining what type of fuser roller is appropriate to run a print job. Then it is determined whether an appropriate fuser roller is installed in the copying or printing device. If an appropriate fuser roller is installed in the copying or printing device, the print job is directed to the device. If an appropriate fuser roller is not installed in the copying or printing device, the appropriate fuser roller is identified using the identification data stored in the MRD and installed in the device.
摘要:
A reproduction apparatus having a series of process stations and a logic and control unit for controlling the operations of the process stations includes a fuser and pressure roller-type fusing apparatus. The fusing apparatus includes a member for oiling the fuser roller, and a fuser skive device with finger portions that contactably ride on the fuser roller for stripping copy sheets. The finger portions are mounted to a flexible member that is connected to strain gauges which sense actual sheet stripping forces on the finger portions. The strain gauges are connected to the logic and control unit which contains a preprogrammed stand for sheet stripping forces on the finger portions on ideal process station conditions. The logic and control unit compares the sensed actual sheet stripping forces from the finger portions for any deviations from such stand, and then use such deviation to adjust an operating condition of at least a process station.
摘要:
Polyblends are provided which display low melt viscosities. The polyblends comprise a polyester having a T.sub.g in the range of about 50.degree. to about 100.degree. C. and an epoxy polymer which is either an epoxy resin or an esterified epoxy resin.
摘要:
A fuser roller system, utilized with electrographic or xerographic copying or printing devices, multiple fuser rollers, each of which includes a machine readable device (MRD) having identification data. The system also includes at least one MRD reader and at least one computer having a database of fuser rollers. The system facilitates use of custom fuser rollers by determining what type of fuser roller is appropriate to run a print job. Then it is determined whether an appropriate fuser roller is installed in the copying or printing device. If an appropriate fuser roller is installed in the copying or printing device, the print job is directed to the device. If an appropriate fuser roller is not installed in the copying or printing device, the appropriate fuser roller is identified using the identification data stored in the MRD and installed in the device.
摘要:
In a printer for forming toner images on a photoreceptor, the printer including a heated fuser roll with an elastomer-coated surface, an external heating roll, in contact with the heated fuser roll, the external heating roll includes a braking mechanism for generating frictional contact with the heated fuser roll thereby improving fuser cleaning