IP Library Granted Patent US 12,177,389
Granted Patent B1
US 12,177,389 · App. 18/527,270 · Granted Dec 24, 2024

Method and apparatus to verify imaging position on a multi-function device

Inventors: Michael John Wilsher (Hertfordshire, GB); Michael David Rodgers (Fairport, NY)
Assignee: Xerox Corporation
H04N1/00087H04N1/00005H04N1/00029H04N1/00968
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Quick Facts
Patent No.
US 12,177,389
App. No.
18/527,270
Granted
Dec 24, 2024
Kind
B1
Abstract

A method is disclosed. For example, the method executed by a processor of a multi-function device (MFD) includes generating an alignment image based on execution of a copy function while an alignment mark is attached to a continuous velocity transport (CVT) platen glass of a CVT of the MFD, determining a misalignment of an illumination profile area, a position of a sensor, and the CVT based on the alignment image, and providing a corrective action to perform an alignment of at least one of the illumination profile area, the position of the sensor, and the CVT via a display of the MFD.

Claims (45)

1. A method, comprising:

generating, by a processor of a multi-function device (MFD), an alignment image based on execution of a copy function while an alignment mark is attached to a continuous velocity transport (CVT) platen glass of a CVT of the MFD;

determining, by the processor, a misalignment of at least one of: an illumination profile area, a position of a sensor, or the CVT based on the alignment image; and

providing, by the processor, a corrective action to perform an alignment of at least one of: the illumination profile area, the position of the sensor, or the CVT via a display of the MFD.

2. The method of claim 1 , wherein the alignment mark comprises opposing markings to detect skew of the position of the sensor.

3. The method of claim 2 , wherein a first marking of the opposing markings is angled from a top left corner towards a right center and a second marking of the opposing markings is angled from a bottom left corner towards the right center.

4. The method of claim 2 , wherein the alignment mark comprises a chevron.

5. The method of claim 2 , wherein the alignment image comprises lines across a width of a substrate.

6. The method of claim 5 , wherein the determining, comprises:

scanning, by the processor, an annotated version of the alignment mark that includes a first line that runs through opposing marks where the lines intersect the opposing marks, a second line indicating a location of duplexing automatic document handler (DADH) backer footings of the CVT, and the illumination profile area; and

detecting, by the processor, the first line and the second line are offset by greater than a first threshold and that the first line and the second line are off of a center of the illumination profile area by greater than a second threshold.

7. The method of claim 6 , wherein the location of the DADH backer footings is determined by placing a marker along outer edges of the platen glass of the CVT and closing the CVT to allow the DADH backer footings to leave an impression on the marker.

8. The method of claim 1 , wherein the alignment mark is printed on a substrate and coupled to the CVT platen glass.

9. The method of claim 1 , wherein the alignment mark is generated via a clear display coupled to the CVT platen glass.

10. A multi-function device (MFD), comprising:

a display;

a continuous velocity transport (CVT), comprising:

a stationary lamp; and

a CVT platen glass;

a platen glass;

a movable carriage including a light source and one or more reflectors;

a sensor;

a processor; and

a non-transitory computer readable medium storing instructions executed by the processor to:

generate an alignment image based on execution of a copy function while an alignment mark is attached to the CVT platen glass;

determine a misalignment of at least one of: an illumination profile area, a position of the sensor, or the CVT based on the alignment image; and

provide a corrective action to perform an alignment of at least one of: the illumination profile area, the position of the sensor, or the CVT via the display.

11. The MFD of claim 10 , wherein the alignment mark comprises opposing markings to detect skew of the position of the sensor.

12. The MFD of claim 11 , wherein a first marking of the opposing markings is angled from a top left corner towards a right center and a second marking of the opposing markings is angled from a bottom left corner towards the right center.

13. The MFD of claim 11 , wherein the alignment mark comprises a chevron.

14. The MFD of claim 11 , wherein the alignment image comprises lines across a width of a substrate.

15. The MFD of claim 14 , wherein the processor to determine, further comprises instructions to cause the processor to:

scan an annotated version of the alignment mark that includes a first line that runs through opposing marks where the lines intersect the opposing marks, a second line indicating a location of duplexing automatic document handler (DADH) backer footings of the CVT, and the illumination profile area; and

detect the first line and the second line are offset by greater than a first threshold and that the first line and the second line are off of a center of the illumination profile area by greater than a second threshold.

16. The MFD of claim 10 , wherein the alignment mark is printed on a substrate and coupled to the CVT platen glass.

17. The MFD of claim 10 , further comprising:

a clear display coupled to the CVT platen glass to generate the alignment mark.

18. A non-transitory computer readable medium storing instructions, which when executed by a processor of a multi-function device (MFD), the instructions cause the processor to:

generate an alignment image based on execution of a copy function while an alignment mark is attached to a continuous velocity transport (CVT) platen glass of a CVT of the MFD;

determine a misalignment of at least one of: an illumination profile area, a position of a sensor, or the CVT based on the alignment image; and

provide a corrective action to perform an alignment of at least one of; the illumination profile area, the position of the sensor, or the CVT via a display of the MFD.

19. The non-transitory computer readable medium of claim 18 , wherein the alignment mark comprises a chevron.

20. The non-transitory computer readable medium of claim 18 , wherein the processor to determine further comprises the processor to:

scan an annotated version of the alignment mark that includes a first line that runs through opposing marks where the lines intersect the opposing marks, a second line indicating a location of duplexing automatic document handler (DADH) backer footings of the CVT, and the illumination profile area; and

detect the first line and the second line are offset by greater than a first threshold and that the first line and the second line are off of a center of the illumination profile area by greater than a second threshold.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2026
From: XEROX CORPORATION
To: GENESEE VALLEY INNOVATIONS, LLC
Reel/Frame 075020/0755 →
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Jul 2, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 071785/0550 →
SECURITY INTEREST Recorded Apr 11, 2025
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 070821/0219 →
SECURITY INTEREST Recorded Apr 11, 2025
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 070821/0240 →
FIRST LIEN NOTES PATENT SECURITY AGREEMENT Recorded Apr 11, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070824/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2023
From: WILSHER, MICHAEL JOHN; RODGERS, MICHAEL DAVID
To: XEROX CORPORATION
Reel/Frame 065740/0936 →