Inkjet printhead wiper cleaning system having cleaning fluid supplied brush

Patent metadata

Field	Value
Publication number	US-11052662-B2
Application number	US-201916705289-A
Country	US
Kind code	B2
Filing date	Dec 6, 2019
Priority date	Dec 6, 2019
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

Inkjet printhead cleaning methods and systems control an articulation structure (that is connected to a wiper blade) to move the wiper blade to contact an inkjet printhead to wipe the inkjet printhead. These methods/systems further control the articulation structure to move the wiper blade to contact a blade cleaning structure to clean the wiper blade. The blade cleaning structure comprises a fluid manifold and bundles of fibers mounted in brush openings of the fluid manifold, and cleaning fluid is in the fluid manifold. The mounting ends of the bundles of fibers are mounted in the brush openings of the fluid manifold and the cleaning ends of the bundles of fibers are positioned to contact the wiper blade. The blade cleaning structure is positioned so as to gravity feed the cleaning fluid from the mounting ends of the fibers to the cleaning ends of the fibers.

First claim

What is claimed is:

1. A printing apparatus comprising:
an inkjet printhead having nozzles oriented toward a direction of gravity;
a wiper blade adapted to contact the inkjet printhead; and
a blade cleaning structure adapted to contact the wiper blade,
wherein the blade cleaning structure comprises:
a fluid manifold adapted to maintain cleaning fluid; and
fibers connected to the fluid manifold at metered outlets in the fluid manifold,

wherein mounting ends of the fibers are connected to the fluid manifold and are in contact with the cleaning fluid,
wherein cleaning ends of the fibers are positioned to contact the wiper blade, and
wherein the mounting ends of the fibers are positioned relative to the cleaning ends of the fibers to gravity feed the cleaning fluid from the mounting ends to the cleaning ends.

2. The printing apparatus according to claim 1 , wherein the metered outlets in the fluid manifold are positioned to gravity feed the cleaning fluid to the mounting ends of the fibers.

3. The printing apparatus according to claim 1 , wherein the metered outlets of the fluid manifold have a diameter proportional to a viscosity of the cleaning fluid.

4. The printing apparatus according to claim 1 , wherein the wiper blade comprises an elongated structure oriented in a first direction, and wherein the fibers of the blade cleaning structure comprise elongated fibers oriented in direction other than parallel to the first direction.

5. The printing apparatus according to claim 1 , further comprising a supply line connected to the fluid manifold, wherein the supply line is adapted to supply the cleaning fluid to the fluid manifold.

6. The printing apparatus according to claim 1 , further comprising an articulation structure connected to the wiper blade, wherein the articulation structure is adapted to move the wiper blade past the inkjet printhead to make contact with the inkjet printhead and move the wiper blade past the blade cleaning structure to make contact with the blade cleaning structure.

7. A printing apparatus comprising:
an inkjet printhead having nozzles oriented toward a direction of gravity;
a wiper blade adapted to contact the inkjet printhead; and
a blade cleaning structure adapted to contact the wiper blade,
wherein the blade cleaning structure comprises:
a fluid manifold adapted to maintain cleaning fluid, wherein the fluid manifold includes brush openings; and
bundles of fibers mounted in the brush openings of the fluid manifold,

wherein mounting ends of the bundles of fibers are mounted in the brush openings of the fluid manifold and extend from the brush openings in the direction of gravity,
wherein cleaning ends of the bundles of fibers are positioned to contact the wiper blade, and
wherein the mounting ends of the bundles of fibers are positioned relative to the cleaning ends of the bundles of fibers to gravity feed the cleaning fluid from the mounting ends to the cleaning ends.

8. The printing apparatus according to claim 7 , wherein metered outlets of the fluid manifold are positioned to gravity feed the cleaning fluid to the mounting ends of the bundles of fibers.

9. The printing apparatus according to claim 7 , wherein metered outlets of the fluid manifold have a diameter proportional to a viscosity of the cleaning fluid.

10. The printing apparatus according to claim 7 , wherein the wiper blade comprises an elongated structure oriented in a first direction, and wherein the bundles of fibers of the blade cleaning structure comprise elongated bundles of fibers oriented in direction other than parallel to the first direction.

11. The printing apparatus according to claim 7 , further comprising a supply line connected to the fluid manifold, wherein the supply line is adapted to supply the cleaning fluid to the fluid manifold.

12. The printing apparatus according to claim 7 , further comprising an articulation structure connected to the wiper blade, wherein the articulation structure is adapted to move the wiper blade past the inkjet printhead to make contact with the inkjet printhead and move the wiper blade past the blade cleaning structure to make contact with the blade cleaning structure.

13. An inkjet printhead cleaning method comprising:
controlling an articulation structure connected to a wiper blade using a processor to move the wiper blade to contact an inkjet printhead to wipe the inkjet printhead;
controlling the articulation structure using the processor to move the wiper blade to contact a blade cleaning structure to clean the wiper blade, wherein the blade cleaning structure comprises a fluid manifold and bundles of fibers mounted in brush openings of the fluid manifold;
maintaining cleaning fluid in the fluid manifold, wherein mounting ends of the bundles of fibers are mounted in the brush openings of the fluid manifold, and wherein cleaning ends of the bundles of fibers are positioned to contact the wiper blade; and
positioning the blade cleaning structure such that the mounting ends of the bundles of fibers are positioned relative to the cleaning ends of the bundles of fibers to gravity feed the cleaning fluid from the mounting ends to the cleaning ends.

14. The inkjet printhead cleaning method according to claim 13 , further comprising positioning the blade cleaning structure such that metered outlets of the fluid manifold gravity feed the cleaning fluid to the mounting ends of the bundles of fibers.

15. The inkjet printhead cleaning method according to claim 13 , further comprising metering release of the cleaning fluid by controlling metered outlets of the fluid manifold to have a diameter proportional to a viscosity of the cleaning fluid.

16. The inkjet printhead cleaning method according to claim 13 , wherein the wiper blade comprises an elongated structure oriented in a first direction, and wherein the method further comprises orienting the bundles of fibers of the blade cleaning structure in direction other than parallel to the first direction.

17. The inkjet printhead cleaning method according to claim 13 , further comprising supplying the cleaning fluid to the fluid manifold using a supply line connected to the fluid manifold.

Assignees

• Xerox Corp

Inventors

• Ficarra Richard P
• Warner Victoria L
• Kalb Richard A
• Gutberlet Douglas A

Classifications

• B41J2/16552

  using cleaning fluids · CPC title

• B41J2/16541 Primary

  Means to remove deposits from wipers or scrapers · CPC title

• B41J2/16508

  connected with the printer frame · CPC title

• B41J2/16547

  the wipers and caps or spittoons being on the same movable support · CPC title

• B41J2/16538 Primary

  with brushes or wiper blades perpendicular to the nozzle plate · CPC title