Granted Patent B2

US 7,912,400 · App. 11/856,818 · Granted Mar 22, 2011

Abstract

Claims (33)

1. A device to remove toner from a belt within an image forming apparatus, the device comprising:

a housing including an interior space to contain the toner removed from the belt, the housing including an inlet positioned on a first side of the housing that faces towards the belt and leads into the interior space;

a blade in proximity to the inlet and positioned to remove the toner from the belt and direct the toner into the inlet;

an auger rotationally positioned within the interior space to move the toner along a longitudinal width of the housing, the auger positioned away from the inlet at a second side of the housing; and

an agitating member rotationally positioned within the interior space to move the toner that enters into the inlet towards the auger, the agitating member including a shaft and a flexible arm that extends outward from the shaft and contacts against the blade and the auger during rotation.

2. The device of claim 1 , wherein the blade includes a front surface that faces towards the belt and a hack surface that faces towards the interior space and an edge positioned between the front and back surfaces that faces towards the inlet, the arm contacting against the back surface during the rotation and moving towards the edge.

3. The device of claim 1 , wherein the housing further includes a floor that extends between the first and second sides, the agitating member being positioned with the arm contacting the floor during the rotation.

4. The device of claim 1 , wherein the auger and the agitating member are connected by gears with the auger rotating at a higher speed than the agitating member.

5. The device of claim 1 , wherein the housing includes a horizontal orientation with the inlet and the auger aligned at a common height.

6. The device of claim 1 , wherein the interior space includes a floor at a vertically lower height and a ceiling at a vertically upper height with the inlet being in closer proximity to the floor than to the ceiling.

7. The device of claim 1 , wherein a center of the shaft is positioned vertically above a center of the auger and an upper edge of the inlet.

8. The device of claim 1 , wherein the agitating member includes a second arm that extends outward from the shaft.

9. A device to remove toner from a belt within an image forming apparatus, the device comprising:

a housing to contain the toner removed from the belt;

a blade including a leading edge that extends outward from the housing to remove the toner from the belt;

an auger rotationally positioned within the housing to move the toner along a longitudinal width of the housing, the auger being spaced away from and at a different depth than the blade; and

an agitating member rotationally positioned within the housing between the blade and the auger to move the toner from the blade and towards the auger;

the housing including a horizontal orientation with the leading edge of the blade and a sweep envelope of the auger positioned at a common vertical height.

10. The device of claim 9 , wherein at least one of the blade and the auger extending into a sweep envelope of the agitating member.

11. The device of claim 10 , wherein both the blade and auger extend into the sweep envelope of the agitating member.

12. The device of claim 9 , wherein the agitating member includes a shaft and a flexible arm that is attached to and extends outward from the shaft.

13. The device of claim 12 , wherein a center of the shaft is positioned at a vertical height above a center of the auger and the leading edge of the blade.

14. The device of claim 9 , wherein the housing further includes an inlet that leads into the interior space, the inlet formed between the leading edge of the blade and a seal that extends upward from a floor of the housing.

15. The device of claim 9 , wherein the auger and the agitating member are connected by gears with the auger rotating at a higher speed than the agitating member.

16. The device of claim 9 , wherein the auger, the blade, and the agitating member extend along an entire longitudinal width of the housing.

17. A method of removing toner from a belt within an image forming apparatus, the method comprising:

removing the toner from the belt and directing the toner through an inlet and into an interior space of a housing;

rotating an agitating member positioned within the interior space and horizontally moving the toner along a depth of the housing from the inlet towards an auger at a second side of the housing;

deforming the agitating member as the agitating member rotates past and contacts the auger; and

rotating the auger and laterally moving the toner along a longitudinal width of the housing.

18. The method of claim 17 , further comprising deforming the agitating member as the agitating member rotates past and contacts a blade positioned at the inlet.

19. The method of claim 17 , wherein the step of deforming the agitating member as the agitating member rotates past and contacts the auger comprises deforming a flexible arm that extends outward from a shaft of the agitating member.

20. The method of claim 17 , further comprising laterally moving the toner along the longitudinal width of the housing and into a storage container associated with the housing.

Assignments (8)