Device for servicing an ink jet print head on a hand held printer

• US 8,636,338 B2
• Filed: 02/18/2013
• Issued: 01/28/2014
• Est. Priority Date: 03/02/2007
• Status: Expired due to Fees

• Current Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Inventors: Mealy, James, Andrews, Jonathan Neal, Simmons, Asher
• Primary Examiner(s): LEPISTO, RYAN A
• Application Number:
  US13/769,714
• Publication Number:
  US 20130155146A1
• Time in Patent Office: 344 Days
• Field of Search: 347/29, 347/32, 347/33
• US Class Current: 347/33
• CPC Class Codes: B41J 2/16505 Caps, spittoons or covers for cleaning or preventing drying out
• CPC Class Codes: B41J 2/16511 Constructions for cap positioning B41J2/16547 takes precedence
• CPC Class Codes: B41J 2/16538 with brushes or wiper blades perpendicular to the nozzle plate
• CPC Class Codes: B41J 2/16585 for paper-width or non-reciprocating print heads
• CPC Class Codes: B41J 3/36 for portability , i.e. hand-held printers or laptop printers B41J3/4075 takes precedence

Abstract

A hand-held printer that includes an inkjet array having a plurality of inkjets is disclosed. The hand-held printer may include an inkjet cap sized to cooperatively engage the inkjet array, wherein the inkjet cap is movable between and open position and a closed position, and a plurality of wipers carried by the inkjet cap, wherein each of the plurality of wipers is configured to engage one of the plurality of inkjets as the inkjet cap moves from the open position to the closed position; and wherein each of the plurality of wipers includes a gasket configured to form a seal adjacent to one of the plurality of inkjets.

Claims

1. A printing device comprising:

a cap sized to cooperatively engage a printing element, wherein the cap is movable from an open position to a closed position;

a plurality of cleaning elements, wherein the plurality of cleaning elements are carried by the cap;

a plurality of gaskets carried by the cap, at least one gasket of the plurality of gaskets abutting at least one cleaning element of the plurality of cleaning elements;

wherein the at least one cleaning element of the plurality of cleaning elements is configured to engage the printing element as the cap moves from the open position to the closed position; and

wherein the at least one gasket of the plurality of gaskets is configured to form a seal adjacent to the printing element.

2. The printing device of claim 1 further comprising:

a lock mechanism configured to releasably engage the cap and maintain the cap in the closed position.

3. The printing device of claim 2, wherein the lock mechanism is spring-loaded.

4. The printing device of claim 1, wherein the at least one gasket of the plurality of gaskets and the at least one cleaning element of the plurality of cleaning elements are a unitary part.

5. The printing device of claim 1, wherein each cleaning element of the plurality of cleaning elements is configured to remove printing substance accumulated near the printing element.

6. The printing device of claim 1, further comprising:

a cam slideably coupled to the cap, wherein the cam is configured to guide the cap and the plurality of cleaning elements through a wipe phase and a seal phase as the cap moves from the open position to the closed position.

7. The printing device of claim 1, wherein each of the plurality of cleaning elements includes a leading edge and a trailing edge.

8. The printing device of claim 7, wherein the leading edge defines a curvilinear surface.

9. The printing device of claim 7, wherein the trailing edge defines a sharp edge.

10. The printing device of claim 7, wherein the plurality of cleaning elements are molded from a deformable rubber material.

11. A printing device comprising:

a cap sized to cooperatively engage a printing element, wherein the cap is movable from an open position to a closed position;

a plurality of cleaning elements, wherein the plurality of cleaning elements are carried by the cap and at least one cleaning element of the plurality of cleaning elements is configured to engage the printing element as the cap moves from the open position to the closed position; and

a plurality of gaskets carried by the cap, at least one gasket of the plurality of gaskets abutting the at least one cleaning element of the plurality of cleaning elements, wherein each gasket of the plurality of gaskets is configured to form a seal adjacent to the printing element;

wherein the printing device is configured to;

transition the cap from the open position to the closed position;

slide the at least one cleaning element adjacent to the printing element;

seal the at least one gasket around the printing element; and

create a vacuum by the cooperative deformation of the at least one cleaning element and the at least one gasket against the printing element.

12. The printing device of claim 11, wherein the printing device is further configured to:

disengage the at least one cleaning element from the printing element; and

disengage the at least one gasket from the printing element.

13. The printing device of claim 12, wherein the printing device is further configured to:

transition the cap from the closed position to the open position; and

slide at least the one cleaning element adjacent to the printing element as the cap moves from the closed position to the open position.

14. The printing device of claim 11, further comprising:

a cam slideably coupled to the cap, wherein the cam is configured to guide the cap and the plurality of cleaning elements through a wipe phase and a seal phase as the cap moves from the open position to the closed position.

15. The printing device of claim 11, further comprising:

a lock mechanism configured to releasably engage the cap and maintain the cap in the closed position.

16. The printing device of claim 11, wherein the plurality of cleaning elements are molded from a deformable rubber material.

17. A printing method comprising:

using at least one gasket from a plurality of gaskets that abut at least one cleaning element from a plurality of cleaning elements;

transitioning a cap from an open position to a closed position, wherein transitioning the cap from the open position to the closed position comprises;

sliding at least one cleaning element adjacent to the printing element as the cap transitions from the open position to the closed position;

sealing the at least one gasket around the printing element as the cap transitions from the open position to the closed position; and

creating a vacuum by the cooperative deformation of the at least one cleaning element and the at least one gasket against the printing element as the cap transitions from the open position to the closed position.

18. The method of claim 17, wherein the cap is sized to cooperatively engage the printing element.

19. The method of claim 17, further comprising:

disengaging the at least one cleaning element from the printing element; and

disengaging the at least one gasket from the printing element.

20. The method of claim 17, wherein creating the vacuum comprises:

compressing the at least one cleaning element and the at least one gasket against the printing element; and

decreasing the compression of the at least one cleaning element and the at least one gasket against the printing element.