Laser printer toner cartridge seal and method
View Patent ↗A reassembled laser printer toner cartridge and method of manufacture including a cartridge seal assembly in which the remains of an OEM laser printer toner cartridge's toner hopper pull seal strip(s) is left in position, or a substitute conductive strip is put in the same position to simulate the OEM pull seal strip(s) if the OEM strips have been damaged or are missing in order to enable a repaired or remanufactured cartridge to cooperate with the printer in detecting measuring and displaying the amount of toner consumed from the cartridge and shut the printer down, once the toner cartridge is empty, and a toner cartridge hopper foam seal strip assembly that covers the remnants of the OEM seal strips and provides a seal to prevent leakage of toner from the re-filled toner cartridge.
1. A remanufactured laser printer toner cartridge comprising:
a previously used laser printer toner cartridge magnetic roller section;
a previously used laser printer toner cartridge hopper section having a top face, electrical contacts positioned on the top face, a central opening, a first central opening end and a second central opening end;
remnants of electrically conductive strips positioned on the cartridge hopper section and in electrical communication with the electrical contacts positioned on the top face;
a seal assembly positioned on the cartridge hopper section and over the remnants of electrically conductive strips;
the seal assembly comprising;
a first adhesive-backed foam seal having a central opening, an outer peripheral region conforming in shape to the top face of the hopper section, adhered to the top face of the hopper section and positioned over the remnants of electrically conductive strips;
a piece of acrylic sheet having an opening in the center, having an out periphery conforming in shape to the top face of the hopper section and adhered to the adhesive-backed foam seal;
a rectangular shaped, flexible strip having a first fold section that extends from the first central opening end and over the central opening to the second central opening, and having a second fold section that extends from the second central opening end and over the central opening back to the first central opening end;
the flexible strip extending over the piece of acrylic sheet; and,
a second adhesively backed foam seal having a central opening, an outer peripheral region conforming in shape to the top face of the hopper section and adhered to the toner cartridge magnetic roller section.
2. A remanufactured laser printer toner cartridge comprising:
a previously used laser printer toner cartridge magnetic roller section;
a previously used laser printer toner cartridge hopper section having a top face, electrical contacts positioned on the top face, a central opening, a first central opening end and a second central opening end;
two electrically conductive strips positioned on the cartridge hopper section, extending along two sides of the central opening from the first central opening end to the second central opening end, joined together at the first central opening end and in electrical communication with the electrical contacts positioned on the top face;
a seal assembly positioned on the cartridge hopper section and over the remnants of electrically conductive strips;
the seal assembly comprising;
a first adhesive-backed foam seal having a central opening, an outer peripheral region conforming in shape to the top face of the hopper section, adhered to the top face of the hopper section and positioned over the electrically conductive strips;
a piece of acrylic sheet having an opening in the center, having an out periphery conforming in shape to the top face of the hopper section and adhered to the adhesive-backed foam seal;
a rectangular shaped, flexible strip having a first fold section that extends from the first central opening end and over the central opening to the second central opening, and having a second fold section that extends from the second central opening end and over the central opening back to the first central opening end;
the flexible strip extending over the piece of acrylic sheet; and,
a second adhesively backed foam seal having a central opening, an outer peripheral region conforming in shape to the top face of the hopper section and adhered to the toner cartridge magnetic roller section.
3. In a remanufactured laser printer toner cartridge including a previously used laser printer toner cartridge hopper section having a top face, two electrical contacts positioned on the top face, a central opening, a first central opening end and a second central opening end, the improvement comprising:
an electrically conductive strip assembly including a first layer of a polyester material, a second layer of an adhesive material, and a third layer of an electrically conductive material;
the electrically conductive strip assembly positioned on the top face of the hopper section around the periphery of the central opening;
the assembly including a first electrically conductive strip extending along one side of the central opening from the first central opening end to the second central opening end, a second electrically conductive strip extending along a second side of the central opening from the first central opening end to the second central opening end, the first strip and the second strip joined together at the first central opening end and in electrical communication with one of the electrical contacts positioned on the top face of the cartridge hopper section.