Drying station

• US 20030184630A1
• Filed: 03/29/2002
• Published: 10/02/2003
• Est. Priority Date: 03/29/2002
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Elgee, Steven B.
• Application Number:
  US10/112,433
• Publication Number:
  US 20030184630A1
• Time in Patent Office: Days
• US Class Current: 347/102
• CPC Class Codes: B41J 11/00216 using infrared [IR] radiation or microwaves
• CPC Class Codes: B41J 11/0022 using convection means, e.g. by using a fan for blowing or sucking air
• CPC Class Codes: F26B 13/10 Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials heating processes F26B3/00
• CPC Class Codes: F26B 5/02 by using ultrasonic vibrations using sonic energy generated by pulse jet combustion F26B23/026

Abstract

A drying station produces a boundary layer relative to wet media when present therein. An air source moves air relative to the boundary layer. A sound source applies sound energy to the boundary layer.

Claims

1. A drying station comprising:

a zone producing a boundary layer relative to wet media when present therein;

an air source moving air relative to said boundary layer; and

a sound source applying sound energy to said boundary layer.

2. A drying station according to claim 1 wherein said sound source is an ultrasonic sound source.

3. A drying station according to claim 1 wherein said sound energy comprises sound waves.

4. A drying station according to claim 1 wherein said sound energy includes sound energy at a selected frequency.

5. A drying station according to claim 4 wherein said selected frequency is taken from a selected range of frequencies.

6. A drying station according to claim 1 wherein said boundary layer comprises vaporized ink components occupying a space adjacent a surface of media holding evaporable ink components.

7. A drying station according to claim 1 further comprising said wet media bearing print imaging produced by application of liquid ink droplets ejected toward said media, said boundary layer comprising evaporable components of said ink droplets.

8. A drying station according to claim 1 further comprising an energy source taken from the group of energy sources including a microwave energy source, a radiant energy source, a radio frequency energy source, and a convection energy source.

9. A drying station according to claim 1 wherein said drying station is an ink drying station.

10. A drying station according to claim 1 wherein said zone is a volatilization zone

11. In combination,

a printer producing print imaging by application of a liquid colorant on media;

and

a drying station accepting said media as bearing said print imaging, said drying station producing a boundary layer by applying energy to said print imaging, said drying station including a sound source directing sound energy at said boundary layer.

12. A combination according to claim 11 wherein said printer is an inkjet printer.

13. A combination according to claim 11 wherein said boundary layer comprises vaporized colorant components occupying a space adjacent a surface of said media.

14. A combination according to claim 11 wherein said printer produces said print imaging by ejecting liquid ink droplets as said colorant toward said media.

15. A combination according to claim 11 wherein said sound source directs ultrasonic frequency sound energy at said media.

16. A combination according to claim 11 further comprising an energy source applying energy to said print imaging to form said boundary layer, said energy source being taken from a group of energy sources including a heat energy source, a microwave energy source, a radiant energy source, a radio frequency energy source, and a convection energy source.

17. A method of drying ink deposited in liquid form on a media substrate, the method comprising:

passing said media through a zone, said zone applying energy to said ink and producing a boundary layer; and

applying sound energy to said boundary layer.

18. A method according to claim 17 wherein said method further comprises the step of providing an airflow relative to said boundary layer.

19. A method according to claim 17 wherein a sound source applies said sound energy at a selected frequency.

20. A method according to claim 17 wherein said energy originates from an energy source taken from the group of energy sources including a microwave energy source, a radiant energy source, a radio frequency energy source and a convection energy source.

21. A drying device comprising:

means for applying energy to media bearing print imaging and thereby producing a boundary layer; and

means for directing sound energy relative to said boundary layer.

22. A drying device according to claim 21 further comprising means for introducing an airflow through a region of air adjacent said media.

23. A drying device according to claim 21 wherein said means for applying energy includes an energy source taken from the group including a microwave energy source, a radiant energy source, a radio frequency energy source and a convection energy source.

24. A method of rendering an image comprising:

applying liquid ink to media, said ink including at least one evaporable component;

forming a boundary layer at a surface of said media including a volatilized state of said evaporable component; and

directing sound energy into said boundary layer.

25. A method according to claim 24 wherein said method further includes introducing an airflow through said boundary layer.

26. A method according to claim 24 wherein said forming a boundary layer includes heating said evaporable component.

27. A method according to claim 26 wherein said heating includes directing energy toward said evaporable component.

28. A method according to claim 27 wherein said directing energy includes directing microwave energy.

29. A method according to claim 27 wherein said directing includes directing radiant energy.

30. A method according to claim 27 wherein said directing includes directing radio frequency energy.

31. A method according to claim 27 wherein said directing includes directing convection energy.

32. A media drying station comprising:

a media transport moving media when present along a feed path;

a media heater applying energy to media moving along said feed path, said heater volatilizing evaporable colorant components of said media as a boundary layer;

an air transport producing an air flow, said air flow being directed at said boundary layer; and

a sound transducer producing sound waves, at least a portion of said sound waves reaching said boundary layer.

33. A media drying station according to claim 32 wherein said sound transducer produces ultrasonic sound waves.

34. A media drying station according to claim 32 wherein said sound waves include sound waves at a selected frequency.

35. A media drying station according to claim 34 wherein said selected frequency is taken from a selected range of frequencies.

36. A media drying station according to claim 32 wherein said boundary layer comprises vaporized ink components occupying a space adjacent a surface of said media holding evaporable ink components.

37. A media drying station according to claim 32 further comprising said media bearing wet print imaging produced by application of liquid colorants to said media, said boundary layer comprising evaporable components of said colorants.

38. A media drying station according to claim 37 wherein said colorants comprise liquid ink.

39. A media drying station according to claim 32 wherein said heater comprising an energy source taken from the group of energy sources including a microwave energy source, a radiant energy source, a radio frequency energy source, and a convection energy source.