Ink container configured for use with a printing device having an out-of-ink sensing system

• US 5,844,580 A
• Filed: 06/04/1997
• Issued: 12/01/1998
• Est. Priority Date: 12/04/1995
• Status: Expired due to Term

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Company (HP Inc.)
• Inventors: Cameron, James, Barinaga, John A., Childers, Winthrop D., Underwood, John A.
• Primary Examiner(s): Fuller, Benjamin R.
• Assistant Examiner(s): HALLACHER, CRAIG ALAN
• Application Number:
  US08/869,151
• Time in Patent Office: 545 Days
• Field of Search: 347/7, 347/85-87
• US Class Current: 347/7
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/1752 Mounting within the printer
• CPC Class Codes: B41J 2/17566 Ink level or ink residue control
• CPC Class Codes: B41J 2002/17573 using optical means for ink level indication
• CPC Class Codes: B41J 2002/17576 using a floater for ink level indication

Abstract

The present invention is a replaceable ink container for use with a printing apparatus. The printing apparatus of the type having out of ink detection. The replaceable ink container includes a fluid reservoir having an outlet. The outlet is configured for connection to a fluid inlet associated with the printing apparatus. Also included in the replaceable ink container is an actuator engagement device for engaging an actuator associated with the printing apparatus. The actuator is of the type that is movable between a first position wherein an out of ink signal is generated and a second position. The actuator engagement device is disposed and arranged to engage the actuator to prevent movement of the actuator from the second position to the first position thereby preventing the out of ink signal.

Claims

1. A replaceable ink container for use with a printing apparatus having out of ink detection, the printing apparatus including a linear actuator for pressurizing ink and a fluid inlet for receiving pressurized ink, the replaceable ink container comprising:

a fluid reservoir having an outlet, the outlet configured for connection to the fluid inlet associated with the printing apparatus; and

an actuator engagement device for engaging the linear actuator associated with the printing apparatus, the linear actuator is adapted to move between a first position wherein an out of ink signal is generated and a second position, the actuator engagement device disposed and arranged to engage the actuator to prevent movement of the actuator from the second position to the first position.

2. The replaceable ink container of claim 1 wherein the first position the actuator is extended from the printing device.

3. The replaceable ink container of claim 1 wherein the actuator engagement device is an ink container housing portion.

4. The replaceable ink container of claim 1 wherein the actuator engagement device is fixed.

5. The replaceable ink container of claim 1 wherein the actuator engagement device is a leading edge of a variable volume chamber.

6. The replaceable ink container of claim 1 wherein ink delivered by the ink container is substantially non-pressurized.

7. The replaceable ink container of claim 1 further including a sensor, the sensor associated with the actuator for monitoring the position of the actuator to detect when the actuator is in an extended position.

8. The replaceable ink container of claim 1 further including an ink usage monitor for determining an out of ink condition based on ink usage.

9. A method for providing ink to a printing apparatus having a fluid inlet for receiving ink and an actuator movable between a first position wherein an out-of-ink signal is generated and a second position, movement of the actuator produces an engagement with an expandable chamber associated with an ink container to bias the expandable chamber to supply ink to the fluid inlet, the method comprising:

coupling fluidically a fluid outlet in fluid communication with a supply of ink to the fluid inlet to allow ink to pass from the supply of ink to the fluid inlet; and

engaging the actuator associated with the printing apparatus to prevent movement of the actuator from the second position to the first position thereby preventing an out of ink signal.

10. The method for providing ink to a printing apparatus of claim 9 wherein fluidically coupling the fluid outlet further includes pressurizing ink within the supply of ink to provide a pressurized supply of ink to the fluid inlet.

11. The method for providing ink to a printing apparatus of claim 9 wherein fluidically coupling the fluid outlet further includes drawing ink from the supply of ink with backpressure associated with a corresponding ink-jet printhead.

12. The method for providing ink to a printing apparatus of claim 9 further comprising monitoring ink availability in the reservoir based on ink usage.

13. The method for providing ink to a printing apparatus of claim 12 wherein monitoring ink availability includes counting ink drops ejected to determine ink usage.

14. The method for providing ink to a printing apparatus of claim 9 wherein engaging the actuator includes positioning an actuator stop proximate the actuator to prevent movement of the actuator to the first position.

15. The method for providing ink to a printing apparatus of claim 9 wherein prior to coupling fluidically the fluid outlet and engaging the actuator the method includes inserting an ink container into a supply station associated with the printing system.

16. The method for providing ink to a printing apparatus of claim 9 wherein the providing ink from the supply of ink to the fluid inlet is accomplished without pressurizing the supply of ink.

17. The method for providing ink to a printing apparatus of claim 9 wherein the engaging the actuator associated with the printing apparatus is performed by the engagement of the actuator with a leading edge portion of a variable volume chamber.

18. The method for providing ink to a printing apparatus of claim 9 wherein the engaging the actuator associated with the printing apparatus is performed by the engagement of the actuator with a fixed portion of the ink container.

19. An ink-jet printing system having a replaceable ink container and an actuator configured for engagement with a variable volume chamber associated with a pressurizable ink container, the actuator engaging the variable volume chamber for pressurizing ink within the chamber for transferring ink from the variable volume chamber to a corresponding printhead, the ink-jet printing system comprising:

a printing portion including a fluid inlet and an actuator, the ink inlet is configured for connection to an ink container fluid and the actuator is configured for engaging the variable volume chamber, the printing portion producing an out of ink signal based on actuator displacement;

an ink container portion including a fluid outlet and an actuator displacement limiter, the fluid outlet is configured for fluid coupling with the fluid inlet and the actuator displacement limiter is so disposed and arranged to engage the actuator and limit displacement such that an out of ink signal is not produced based on actuator displacement.

20. The ink-jet printing system of claim 19 further including an ink usage monitor for producing an out of ink signal based on ink usage.

21. The ink-jet printing system of claim 19, wherein the actuator displacement limiter is a leading edge of a variable volume chamber.

22. The ink-jet printing system of claim 19, wherein the actuator displacement limiter is a fixed portion of the ink container.

23. The ink-jet printing system of claim 19, wherein ink provided from the reservoir to the ink outlet is substantially non-pressurized.