IP Library Granted Patent US 11,561,489
Granted Patent B2
US 11,561,489 · App. 17/850,426 · Granted Jan 24, 2023

Seal for an electrophotograhic image forming device

Inventors: Brian Lester Boettcher (Versailles, KY); David Lee Merrifield (Lexington, KY)
Assignee: Lexmark International, Inc.
G03G15/0898G03G15/0817G03G15/0865G03G15/0881G03G15/0894G03G2215/00991G03G2215/0687G03G2221/1648
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Quick Facts
Patent No.
US 11,561,489
App. No.
17/850,426
Granted
Jan 24, 2023
Kind
B2
Abstract

A toner sealing system is described including a seal having first and second alignment features. The seal is selectably installable on one of a first toner container of a first type and a second toner container of a second type. The first alignment feature is matable with a first corresponding alignment feature on the first toner container when the seal is installed on the first toner container for aligning the seal to the first toner container. The second alignment feature is matable with a second corresponding alignment feature on the second toner container when the seal is installed on the second toner container for aligning the seal to the second toner container. Embodiments include those wherein the first alignment feature does not align the seal to the second toner container, and the second alignment feature does not align the seal to the first toner container.

Claims (27)

1. A toner container, comprising:

a housing including a main body that has a reservoir for storing toner;

a wall of the main body includes an inner surface that forms a boundary of the reservoir, the wall of the main body includes an opening therethrough; and

a seal having a first face and a second face opposite the first face, the first face of the seal is adhered directly to a surface of the housing that faces toward an outer surface of the wall of the main body, the second face of the seal is pressed against a portion of the outer surface of the wall of the main body surrounding the opening, the second face of the seal covers the opening to block toner from escaping the reservoir through the opening.

2. The toner container of claim 1 , wherein the seal includes an alignment feature formed along an edge of the seal mated with a corresponding alignment feature on the surface of the housing that faces toward the outer surface of the wall of the main body aligning the seal to the housing.

3. The toner container of claim 1 , wherein the surface of the housing that faces toward the outer surface of the wall of the main body includes an inner surface of a gear plate of the housing, the gear plate includes an outer surface that rotatably supports a gear of the toner container.

4. The toner container of claim 1 , wherein the wall of the main body includes an end wall of the main body forming a longitudinal end of the reservoir.

5. The toner container of claim 1 , further comprising a rotatable component positioned in the reservoir having a rotatable shaft, one end of the rotatable shaft is supported by a bearing on the wall of the main body, wherein the opening through the wall of the main body is positioned at a location of the bearing.

6. The toner container of claim 1 , further comprising a ring protruding from the outer surface of the wall of the main body surrounding the opening, wherein the second face of the seal is pressed against the ring.

7. A toner container, comprising:

a housing including a main body that has a reservoir for storing toner;

a wall of the main body includes an inner surface that forms a boundary of the reservoir, the wall of the main body includes an opening therethrough; and

a seal having a first face and a second face opposite the first face, the first face of the seal is adhered to a surface of the housing that faces toward an outer surface of the wall of the main body in a fixed position relative to the surface of the housing that faces toward the outer surface of the wall of the main body, the second face of the seal is pressed against a portion of the outer surface of the wall of the main body surrounding the opening, the second face of the seal covers the opening to block toner from escaping the reservoir through the opening.

8. The toner container of claim 7 , wherein the seal includes an alignment feature formed along an edge of the seal mated with a corresponding alignment feature on the surface of the housing that faces toward the outer surface of the wall of the main body aligning the seal to the housing.

9. The toner container of claim 7 , wherein the surface of the housing that faces toward the outer surface of the wall of the main body includes an inner surface of a gear plate of the housing, the gear plate includes an outer surface that rotatably supports a gear of the toner container.

10. The toner container of claim 7 , wherein the wall of the main body includes an end wall of the main body forming a longitudinal end of the reservoir.

11. The toner container of claim 7 , further comprising a rotatable component positioned in the reservoir having a rotatable shaft, one end of the rotatable shaft is supported by a bearing on the wall of the main body, wherein the opening through the wall of the main body is positioned at a location of the bearing.

12. The toner container of claim 7 , further comprising a ring protruding from the outer surface of the wall of the main body surrounding the opening, wherein the second face of the seal is pressed against the ring.

13. A toner container, comprising:

a housing including a main body that has a reservoir for storing toner;

a wall of the main body includes an inner surface that forms a boundary of the reservoir, the wall of the main body includes an opening therethrough; and

a seal having a first face and a second face opposite the first face, the first face of the seal is adhered to and in direct contact with a surface of the housing that faces toward an outer surface of the wall of the main body, the second face of the seal is pressed against a portion of the outer surface of the wall of the main body surrounding the opening, the second face of the seal covers the opening to block toner from escaping the reservoir through the opening.

14. The toner container of claim 13 , wherein the seal includes an alignment feature formed along an edge of the seal mated with a corresponding alignment feature on the surface of the housing that faces toward the outer surface of the wall of the main body aligning the seal to the housing.

15. The toner container of claim 13 , wherein the surface of the housing that faces toward the outer surface of the wall of the main body includes an inner surface of a gear plate of the housing, the gear plate includes an outer surface that rotatably supports a gear of the toner container.

16. The toner container of claim 13 , wherein the wall of the main body includes an end wall of the main body forming a longitudinal end of the reservoir.

17. The toner container of claim 13 , further comprising a rotatable component positioned in the reservoir having a rotatable shaft, one end of the rotatable shaft is supported by a bearing on the wall of the main body, wherein the opening through the wall of the main body is positioned at a location of the bearing.

18. The toner container of claim 13 , further comprising a ring protruding from the outer surface of the wall of the main body surrounding the opening, wherein the second face of the seal is pressed against the ring.

Assignments (5)
SECURITY INTEREST Recorded Jan 5, 2026
From: LEXMARK INTERNATIONAL, INC.
To: BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 074202/0192 →
SECURITY INTEREST Recorded Jan 5, 2026
From: LEXMARK INTERNATIONAL, INC.
To: BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 074202/0293 →
SECURITY INTEREST Recorded Sep 23, 2025
From: LEXMARK INTERNATIONAL, INC.
To: CITIBANK, N.A.
Reel/Frame 073007/0118 →
SECURITY INTEREST Recorded Sep 23, 2025
From: LEXMARK INTERNATIONAL, INC.
To: JEFFERIES FINANCE LLC
Reel/Frame 073007/0346 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2022
From: BOETTCHER, BRIAN LESTER; MERRIFIELD, DAVID LEE
To: LEXMARK INTERNATIONAL, INC.
Reel/Frame 060323/0573 →