Flexible toner feed member
View Patent ↗A toner feeding device and method to supply toner from a toner reservoir to a selected location in the printer such as a toner supply roll. The toner feeding device may contact with a portion of an inner wall of a toner reservoir and may flex and may subsequently recover to convey toner particles.
1. A toner assembly for supplying toner to a selected location in a printer comprising:
(a) a toner feeding member;
(b) a toner reservoir capable of storing toner particles wherein the reservoir includes an inner wall and a protruding feature;
(c) wherein said toner feeding member is capable of engaging with said protruding feature on said wall of said reservoir and capable of disengaging with said protruding feature on said wall of said reservoir with an elastic response,
wherein said disengagement of said toner feeding member with said wall of said reservoir and said elastic response supplies kinetic energy to said toner particles to convey toner particles to said selected location in a printer and wherein the shape of the protruding feature varies across the width of the reservoir.
2. The toner assembly of claim 1 , wherein said toner feeding member flexes at an angle of about 90 degrees to less than 180 degrees.
3. The toner assembly of claim 1 , wherein said toner feeding member comprises a polymeric material.
4. The toner assembly of claim 1 wherein said toner feeding member has a thickness between about 0.075 mm and about 0.250 mm.
5. The toner assembly of claim 1 , wherein said reservoir contains electrophotographic toner for developing electrophotographic images.
6. The toner assembly of claim 1 , wherein said flexing of said toner feeding member provides a toner feeding member that is capable of providing an elastic response.
7. The toner assembly of claim 1 wherein the selected location is a toner supply roll.
8. A toner cartridge comprising:
a cylindrical reservoir capable of storing toner particles, said reservoir having a cylindrical wall including a protruding feature;
a toner feeding member in said reservoir capable of moving toner towards a toner roll, said toner feeding member including a first end and a second end;
wherein said first end of said toner feeding member is coupled to a driven shaft and said second end is capable of being rotated by said shaft and into contact with said protruding feature in said cylindrical wall of said reservoir to cause said feeding member to flex and provide said toner feeding member with potential energy and wherein unflexing of said toner feeding member supplies kinetic energy to said toner particles to convey said particles towards said toner roll and wherein the shape of the protruding feature varies across the width of the reservoir.
9. The toner cartridge of claim 8 where said toner feeding member comprises a polymer.
10. The toner cartridge of claim 8 wherein said toner feeding member has a thickness between about 0.075 mm and about 0.250 mm.
11. The toner cartridge of claim 8 wherein said reservoir contains electrophotographic toner for developing electrophotographic images.
12. The toner cartridge of claim 8 wherein said flexing of said toner feeding member provides a toner feeding member that is capable of providing an elastic response.
13. A method of conveying toner from a reservoir to a selected location in a printer comprising:
(a) providing a toner feeding member;
(b) providing a reservoir capable of storing toner particles wherein the reservoir includes an inner wall and a protruding feature;
(c) engaging said toner feeding member with toner particles and with said protruding feature on said wall of said reservoir and flexing said toner feeding member wherein said flexing of said toner feeding member provides said toner feeding member with the ability to provide an elastic response; and
(d) disengaging said feeding member with said protruding feature on said wall of said reservoir;
wherein said disengagement of said toner feeding member with said protruding feature on said wall of said reservoir and said elastic response supplies kinetic energy to said toner particles to supply toner particles to a selected location in a printer and wherein the shape of the protruding feature varies across the width of the reservoir.
14. The method of claim 13 wherein said toner feeding member comprises a polymer.
15. The method of claim 13 where said selected location is a toner supply roll.