Method of and apparatus for handheld printing of images on a media

• US 6,357,939 B1
• Filed: 02/02/2001
• Issued: 03/19/2002
• Est. Priority Date: 02/02/2001
• Status: Expired due to Fees

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: Baron, John M.
• Primary Examiner(s): Hilten, John S.
• Assistant Examiner(s): Nolan, Jr., Charles H.
• Application Number:
  US09/776,292
• Time in Patent Office: 410 Days
• Field of Search: 400/88, 400/76, 400/70, 400/61
• US Class Current: 400/88
• CPC Class Codes: B41J 3/36 for portability , i.e. hand-held printers or laptop printers B41J3/4075 takes precedence

Abstract

The present invention includes a device for a method of printing images with a handheld printing device. The handheld printing device includes a navigation sensor, a controller to correlate image information and navigational information and a printhead to print the image on a printable object or media. The method of printing with a handheld printing device includes moving the handheld printing device in a series of continuous motions in which the handheld printing device determines its position and prints the portion of the image appropriate for its current position. The handheld printing device can be combined with a handheld scanning device to enable a user to scan and print with a handheld device.

Claims

1. A method of printing an image onto a surface of a media, the method comprising the steps of:

moving a handheld printhead over the surface of the media;

locating a position of said printhead relative to said media;

printing at least a portion of said image onto a corresponding portion of the surface of the media under control of said locating step; and

displaying a direction in which additional printing is possible.

2. The method of claim 1 wherein said step of locating includes relating said position to inherent structural features of the media.

3. The method of claim 1 wherein said step of locating includes relating said position to an edge of said media.

4. The method of claim 1 wherein said step of locating includes relating said position to servo marks printed on the media.

5. The method of claim 4 wherein said servo marks are printed by said handheld printhead.

6. The method of claim 1 wherein said step of locating includes relating said position to information printed on the media.

7. The method of claim 6 wherein said printed information is a portion of said image printed by said handheld printhead.

8. The method of claim 1 further comprising:

storing the image in a memory within said handheld printhead in a bit-mapped representation.

9. The method of claim 1 further comprising:

optically scanning an object with said handheld printhead to capture a digital representation of said image.

10. The method of claim 9 wherein said optically scanning step further comprises the steps of:

reading a first swath of said image;

reading a second swath of said image; and

stitching said first swath with said second swath to produce the image.

11. A handheld device for printing a facsimile of an image onto a surface of a media comprising:

at least one navigation sensor for aiding in the determination of a position of the handheld device relative to the media to provide navigation information;

a controller configured to correlate image information with said navigation information;

a printhead associated with said handheld device responsive to said image information to print a representation of the image onto the surface of the media; and

a directional indicator configured to display a direction in which additional printing is possible.

12. The handheld device of claim 11 wherein said navigation sensor determines said position from structural features of the surface of the media.

13. The handheld device of claim 11 wherein said navigation sensor detects printed information on the surface of the media deposited by said handheld device to determine the position of the handheld device.

14. The handheld device of claim 11 further comprising:

a memory for storing the image information defining said image within said handheld device.

15. The handheld device of claim 11 further comprising:

an optical scanner for capturing a representation of the image from an image source.

16. A handheld device for printing a representation of an image onto a surface of a media comprising:

means for determining a position of the handheld device relative to the surface of the media and for providing navigation information;

means for correlating said navigation information with said image information;

means on said handheld device for depositing ink to said surface of said media to create said image representation; and

means for indicating a direction in which additional printing may be accomplished.

17. The handheld device of claim 16 further comprising:

means associated with said device for storing said navigation information and said image information.

18. The handheld device of claim 16 further including:

means included within said handheld device for scanning an image from an image source to create said image to be represented.

19. The handheld device of claim 16 wherein said determining means includes means for determining an edge of said surface of the media.

20. The handheld device of claim 16 wherein said determining means includes means for locating specific information on said surface of said media.