摘要:
A journal for forming the axle of a wick roller wherein the mounting section of the journal is provided with a nose section so that any adhesive which is skived from the core of the roller as the journal is positioned therein will collect on the nose section and will not foul the central bore through the core.
摘要:
An adhesive applicator has a nozzle through which adhesive can be dispensed to sheets of a set as the sheets are driven seriatim past the nozzle. Adhesive is furnished in a cartridge which is pressurized so that the adhesive is delivered from the cartridge to the nozzle under pressure. A valve controls the flow of adhesive from the nozzle, and the valve is under control of a logic and control unit. The logic and control unit receives signals from various sensors or detectors indicating, inter alia, the presence of an adhesive cartridge, the level of adhesive in the cartridge, the flow of adhesive from the nozzle, and the amount of adhesive in a collection bottle which receives surplus adhesive dispensed from the nozzle but not applied onto a sheet. The logic and control unit is capable of operating the valve that controls flow of adhesive from the nozzle so that adhesive is selectively dispensed from the nozzle to all but one sheet of a set of sheets. A purge cycle is initiated if adhesive does not flow from the nozzle when commanded to flow by the logic and control unit.
摘要:
The invention relates to application of a surface treatment to a fuser, typically in a print process. According to various aspects of the invention, methods and apparatus are provided for applying surface treatment to a fuser comprising varying a width of surface treatment application to the fuser.
摘要:
The invention generally relates to the field of fusing powder toner images on receiver sheets. According to various aspects of the invention, methods and apparatus are provided of cleaning, only during standby, a pressure roller that cooperates with a fuser roller in fusing toner images. The pressure roller is cleaned with a cleaning pad mounted adjacent the pressure roller in an electrographic printer.
摘要:
This invention provides a fuser station with a vented skive assembly for an image-forming machine. The image-forming machine may have a photoconductor, a primary charger, an exposure machine, a toning station, a transfer charger, and a vented fuser station. The fuser station may include a pressure roller, a fuser roller, and a skive assembly. The skive assembly has rib sections forming one or more slots, which are configured to provide an airflow pattern to reduce condensation. The skive assembly may have an insert protection device disposed in one or more of the slots.
摘要:
The fusing assembly in an electrophotographic copier has a paper travel path passing between a pair of opposed air cooling plenums. Each plenum has an air supply plate confronting the travel path with slots for directing cooling air onto the moving paper. The lower plenum plate includes upstanding ribs parallel to the paper travel path for guiding the moving paper and spacing the paper from the plate to improve airflow by decreasing airflow impedance.
摘要:
A set of sheets delivered seriatim from a copier/duplicator or other source are advanced along a sheet path leading from an input station to an assembly station where a booklet is formed. As a sheet is moved along the path a line of adhesive is applied to one surface of the sheet adjacent to one side edge of the sheet. In the assembly station the sheets are jogged to align the sheets of the set and then pressure is applied to the sheets over the line of adhesive. When the entire set has been bound together into a booklet, the booklet is removed from the assembly station and delivered to an output station, such as a tote tray.
摘要:
A transfer apparatus includes a transfer member, for example, a transfer drum with a line of small closely spaced laser drilled vacuum holes to hold a receiving sheet to the drum surface. The transfer drum is formed by forming a layer of at least intermediate conductivity material on the surface of a core, forming at least one vacuum opening in the core and laser drilling in the layer a line of closely spaced small holes communicating with the opening. In one embodiment, a short focal length lens focuses a laser beam near the surface of the layer, which beam spreads below the surface to form a conical hole. The conical hole helps maintain the continuity of a transfer field while being free from clogging.
摘要:
Color toner images are transferred in registry to a receiving sheet held on a transfer drum. To facilitate releasing the sheet with the last image the drum surface is roughened, providing at least 0.002 inches between peaks and valleys. To offset difficulties created by such roughening in initial securing of the sheet to the drum, a transfer field is not applied as the leading edge of the sheet leaves the nip. The transfer field is applied after a short portion of the sheet, for example, 0.25 inches has left the nip.
摘要:
An evaporator which removes liquid from a pneumatic line filter and holds the liquid for evaporation. The evaporator includes a wick of absorbent, porous material, such as felt comprised of blended substantially equal portions of wool and rayon. The wick is connected to the housing of a pneumatic line filter which removes and accumulates liquid entrapped in the flow in the pneumatic line. The housing includes a passage for the accumulated liquid so that the liquid drains into the wick where it is absorbed and held for evaporation to the atmosphere.