Fluidic ejection cartridge for improved protective tape removal

Patent metadata

Field	Value
Publication number	US-10384458-B1
Application number	US-201815973690-A
Country	US
Kind code	B1
Filing date	May 8, 2018
Priority date	May 8, 2018
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

A fluidic ejection cartridge and protective tape system therefor. The fluidic ejection cartridge includes a cartridge body having a cover closing a first end thereof, an ejection head on a second end thereof, and side walls attached to the first and second ends. The side walls include a first side wall, a second side wall, a third side wall attached to the first and second side walls, and a fourth side wall opposite the third side wall. A first removable tape is attached to a release structure on the first side wall and to the ejection head by a first adhesive, and a second removable tape is attached to a portion of the first removable tape by a second adhesive. The second adhesive has an adhesive strength that is about three times greater than an adhesive strength of the first adhesive.

First claim

What is claimed is:

1. A fluidic ejection cartridge and protective tape system therefor, comprising:
a cartridge body for fluid having a cover closing a first end thereof, an ejection head on a second end thereof opposite the first end, and side walls attached to the first and second ends between the first and second ends, wherein the side walls comprise a first side wall, a second side wall opposite the first side wall, a first end wall attached to the first and second side walls, and a second end wall opposite the first end wall attached to the first and second side walls,
a first removable tape attached to a release structure on the first side wall and to the ejection head by a first adhesive, and
a second removable tape attached to a portion of the first removable tape by a second adhesive, wherein the second adhesive has an adhesive strength that is greater than an adhesive strength of the first adhesive.

2. The fluidic ejection cartridge of claim 1 , wherein the release structure comprises a scored portion of the first side wall.

3. The fluidic ejection cartridge of claim 2 , wherein the scored portion comprises a plurality of spaced-apart bull-nose ribs.

4. The fluidic ejection cartridge of claim 3 , wherein the plurality of spaced-apart bull-nose ribs have a score depth ranging from about 40 to about 200 microns and a spacing ranging from about 20 to about 900 microns between adjacent ribs.

5. The fluidic ejection cartridge of claim 1 , wherein the first removable tape comprises a polyvinyl chloride backer and an acrylic adhesive having a peel strength on a silicon wafer ranging from about 40 to about 80 Newton per meter (N/m).

6. The fluidic ejection cartridge of claim 1 , wherein the second removable tape is attached to the first side wall adjacent to the first removable tape.

7. The fluidic ejection cartridge of claim 1 , wherein the first removable tape covers a nozzle plate on the ejection head.

8. A fluidic ejection device comprising the fluidic ejection cartridge of claim 1 .

9. A method for improving the removal of protective tape from an ejection head of a fluidic ejection cartridge, comprising
providing a fluidic ejection cartridge with at least one side wall having a release structure on the at least one side wall,
attaching a first removable tape to the release structure on the side wall and to a nozzle plate on the ejection head using a first adhesive having a first peel strength,
attaching a second removable tape to a portion of the first removable tape adjacent the release structure on the side wall and to the side wall using a second adhesive, wherein the second adhesive has a second peel strength that is greater than the first peel strength of the first adhesive.

10. The method of claim 9 , wherein the release structure comprises a scored portion of the side wall.

11. The method of claim 10 , wherein the scored portion comprises a plurality of spaced-apart bull-nose ribs.

12. The method of claim 11 , wherein the plurality of spaced-apart bull-nose ribs have a score depth ranging from about 40 to about 200 microns and a spacing ranging from about 20 to about 900 microns between adjacent ribs.

13. The method of claim 9 , wherein the first removable tape comprises a polyvinyl chloride backer and an acrylic adhesive having a peel strength on a silicon wafer ranging from about 40 to about 80 Newton per meter (N/m).

14. A fluidic ejection cartridge comprising;
an ejection head on a first end wall thereof;
first, second, second, third and fourth side walls attached to the first end wall; and
a cover opposite the first end wall attached to the first, second, third and fourth side walls, wherein a first side wall contains a protective tape release structure thereon.

15. The fluidic ejection cartridge of claim 14 , wherein the first side wall is orthogonal to a longitudinal direction of the ejection head.

16. The fluidic ejection cartridge of claim 14 , wherein the release structure comprises a scored portion of the first side wall.

17. The fluidic ejection cartridge of claim 16 , wherein the scored portion comprises a plurality of spaced-apart bull-nose ribs.

18. The fluidic ejection cartridge of claim 17 , wherein the plurality of spaced-apart bull-nose ribs have a score depth ranging from about 40 to about 200 microns.

19. The fluidic ejection cartridge of claim 17 , wherein the plurality of spaced-apart bull-nose ribs have a spacing ranging from about 20 to about 900 microns between adjacent ribs.

20. The fluidic ejection cartridge of claim 14 , wherein the release structure is molded into the first side wall of the fluidic cartridge.

Assignees

• Funai Electric Co

Inventors

• Anderson Jr James D
• Dryer Paul W
• Vanderpool Jason

Classifications

• B05B15/50

  Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter · CPC title

• B41J2/17553

  Outer structure · CPC title

• B41J2/17536 Primary

  Protection of cartridges or parts thereof, e.g. tape · CPC title

• B41J2/17503 Primary

  Ink cartridges · CPC title

• B41J2/1753

  Details of contacts on the cartridge, e.g. protection of contacts · CPC title