Endless belt dry toner agitator

• US 6,671,481 B1
• Filed: 10/29/2002
• Issued: 12/30/2003
• Est. Priority Date: 10/29/2002
• Status: Expired due to Term

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Terry, James P., Tupper, Paxton J., Costello, Daniel E.
• Primary Examiner(s): Royer, William J.
• Application Number:
  US10/282,471
• Time in Patent Office: 427 Days
• Field of Search: 399/258, 399/262, 399/263
• US Class Current: 399/258
• CPC Class Codes: G03G 15/0875 cartridges having a box like shape
• CPC Class Codes: G03G 15/0877 Arrangements for metering and dispensing developer from a developer cartridge into the development unit
• CPC Class Codes: G03G 2215/0825 belt

Abstract

A toner cartridge includes a housing which defines a toner reservoir. A rotatable endless belt is located within the toner reservoir. The belt can be used to agitate or stir toner which can be placed in the toner reservoir. In one example the belt has periodic openings in the belt which allow toner to pass through the belt so that agitated toner can be provided to toner distribution components within and outside of the toner cartridge.

Claims

1. A toner cartridge, comprising:

a housing which defines a toner reservoir; and

a rotatable endless belt disposed within the toner reservoir; and

wherein;

the toner reservoir is defined by a reservoir primary surface within the housing, and further wherein the rotatable endless belt is positioned proximate the reservoir primary surface; and

the rotatable endless belt is in contact with the reservoir primary surface.

2. A toner cartridge, comprising:

a housing which defines a toner reservoir; and

a rotatable endless belt disposed within the toner reservoir;

and wherein the rotatable endless belt has openings disposed therein to allow toner to pass therethrough.

3. The toner cartridge of claim 2, and wherein the openings are longitudinal slits.

4. The toner cartridge of claim 2, and wherein the rotatable endless belt is fabricated from a material comprising neoprene.

5. The toner cartridge of claim 2, and wherein the rotatable endless belt comprises a plastic mesh.

6. The toner cartridge of claim 5, and wherein the plastic mesh comprises an extrusion.

7. The toner cartridge of claim 2, and wherein the rotatable endless belt comprises a plurality of fibers which are fused to one another at random sites along the plurality of fibers.

8. A toner cartridge, comprising:

a housing which defines a toner reservoir; and

a rotatable endless belt disposed within the toner reservoir, and wherein;

the toner reservoir is defined by a reservoir primary surface within the housing, and further wherein the rotatable endless belt is positioned proximate the reservoir primary surface; and

the rotatable endless belt is defined by an outer belt surface which is proximate the reservoir primary surface, and an inner belt surface which is opposite the outer belt surface, the rotatable endless belt further comprising a plurality of stirring members which protrude from the inner belt surface.

9. A toner cartridge, comprising:

a housing which defines a toner reservoir; and

a rotatable endless belt disposed within the toner reservoir; and

wherein;

the toner reservoir is defined by a reservoir primary surface within the housing, and further wherein the rotatable endless belt is positioned proximate the reservoir primary surface; and

the rotatable endless belt is defined by an outer belt surface which is proximate the reservoir primary surface, and an inner belt surface which is opposite the outer belt surface, and wherein at least one of the outer belt surface or the inner belt surface is roughened.

10. A toner cartridge, comprising:

a housing which defines a toner reservoir;

a rotatable endless belt disposed within the toner reservoir;

a plurality of rollers which support the rotatable endless belt in proximity to the reservoir primary surface and, wherein;

the toner reservoir is defined by a reservoir primary surface within the housing, and further wherein the rotatable endless belt is positioned proximate the reservoir primary surface; and

the housing is defined by an exterior surface, the toner cartridge further comprising a drive connection connected to one of the plurality of rollers and disposed proximate the exterior surface of the housing.

11. A toner cartridge, comprising:

a housing which defines a toner reservoir;

a rotatable endless belt disposed within the toner reservoir;

a plurality of rollers which support the rotatable endless belt in proximity to the reservoir primary surface and, wherein;

the toner reservoir is defined by a reservoir primary surface within the housing, and further wherein the rotatable endless belt is positioned proximate the reservoir primary surface; and

the housing is defined by an exterior surface, the toner cartridge further comprising;

a drive connection disposed proximate the exterior surface of the housing; and

a drive system which is driven by the drive connection and engages the plurality of rollers to thereby allow the drive connection to be used to drive all of the plurality of rollers.

12. The toner cartridge of claim 11, and wherein the drive system comprises a central driving wheel in contact with a plurality of secondary driving wheels, and each secondary driving wheel is in contact with a corresponding one of the plurality of rollers.

13. An imaging apparatus, comprising:

a toner reservoir housing which defines a toner reservoir;

a rotatable endless belt disposed within the toner reservoir; and

wherein the rotatable endless belt has openings disposed therein to allow toner to pass therethrough.

15. The imaging apparatus of claim 13, and wherein the rotatable endless belt is supported in the toner reservoir by a plurality or rollers, and further wherein one of the rollers is driven by a rotary drive to thereby allow the rotatable endless belt to be rotated.

14. An imaging apparatus, comprising:

a toner reservoir housing which defines a toner reservoir;

a rotatable endless belt disposed within the toner reservoir; and

an antechamber in fluid communication with the toner reservoir, the antechamber having an inlet opening to receive dry toner therethrough.

16. A toner cartridge, comprising:

a housing which defines a toner reservoir, the toner reservoir being defined by a toner reservoir primary surface and a toner reservoir egress area;

a toner distribution roller located proximate the toner reservoir egress area;

a toner agitator belt disposed within the toner reservoir and located in proximity to the toner reservoir primary surface, the toner agitator belt having perforations therein to allow toner to pass through the toner agitator belt to the toner reservoir egress area.

17. The toner cartridge of claim 16, and wherein the toner agitator belt is defined by an outer belt surface which is proximate the toner reservoir primary surface, and an inner belt surface which is opposite the outer belt surface, and wherein the housing is defined by an exterior surface, the toner cartridge further comprising:

a drive roller in contact with the inner belt surface; and

a drive connection connected to the drive roller and disposed proximate the exterior surface of the housing.

18. The toner cartridge of claim 17, and further comprising first and second idler rollers in contact with the inner belt surface.