Hard imaging device and method thereof

Patent metadata

Field	Value
Publication number	US-9346287-B2
Application number	US-201213633493-A
Country	US
Kind code	B2
Filing date	Oct 2, 2012
Priority date	Aug 26, 2009
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

An imaging method includes coating a transfer member with an adhesion promoter in a liquid state, changing the adhesion promoter on the transfer member from the liquid state to at least one of a solid state and a get state, depositing a liquid marking agent on the solidified adhesion promoter corresponding to an image, changing a state of the adhesion promoter from the solid state to the flowable state, and transferring the liquid marking agent and the adhesion promoter in the flowable state from the transfer member to a substrate to form a hard version of the image thereon.

First claim

What is claimed is:

1. A hard imaging device, comprising:
a transfer member configured to receive and transfer an adhesion promoter and a liquid marking agent to a substrate;
a coating unit configured to heat the adhesion promoter above a respective melting point thereof and coat the transfer member with a non-porous layer of the adhesion promoter in a liquid state and to change the adhesion promoter on the transfer member from the liquid state to at least one of a solid state and a gel state;
a printing unit configured to deposit the liquid marking agent directly on the solidified adhesion promoter;
a control unit configured to control the printing unit to deposit the liquid marking agent directly on the solidified adhesion promoter corresponding to an image to be formed;
a developer unit configured to develop the liquid marking agent deposited directly on the solidified adhesion promoter;
a heating unit configured to heat the solidified adhesion promoter with the liquid marking agent deposited directly thereon above a respective softening point thereof and to change the solidified adhesion promoter to the liquid state; and
a transferring unit configured to transfer the liquid marking agent corresponding to the image and the adhesion promoter in the liquid state from the transfer member to the substrate.

2. The device of claim 1 , wherein the coating unit includes a heater to heat the adhesion promoter above the respective melting point thereof and maintain the adhesion promoter in the liquid state before coating on the transfer member.

3. The device of claim 1 , wherein the transfer member comprises:
an intermediate blanket.

4. The device of claim 1 , wherein the liquid marking agent comprises:
an ink having pigments and a carrier fluid.

5. The device of claim 4 , further comprising:
a development unit configured to develop the ink on the transfer member; and
a removal unit configured to remove at least a portion of the carrier fluid.

6. The device of claim 1 , wherein the printing unit is configured to deposit the liquid marking agent directly on a substantially uniform surface of the solidified adhesion promoter.

7. The device of claim 1 , wherein, with the liquid marking agent and the adhesion promoter transferred from the transfer member to the substrate, pigments of the liquid marking agent are disposed between and in direct contact with both the adhesion promoter and the substrate.

8. The device of claim 1 , wherein the heating unit is configured to heat the solidified adhesion promoter above the respective softening point and change the solidified adhesion promoter to the liquid state prior to transfer of the liquid marking agent and the adhesion promoter to the substrate.

9. The device of claim 1 , wherein the heating unit is configured to heat the solidified adhesion promoter to approximately 140 degrees Celsius to change the solidified adhesion promoter to the liquid state.

10. The device of claim 1 , wherein the adhesion promoter is to be:
heated to the liquid state,
thereafter, coated on the transfer member,
thereafter, changed to at least one of a solid state and a gel state,
thereafter, reheated to the liquid state, and
thereafter, transferred to the substrate.

11. An inkjet printing apparatus, comprising:
an intermediate blanket configured to receive and transfer an adhesion promoter and an ink having pigments and a carrier fluid to a substrate;
a coating unit configured to heat the adhesion promoter above a respective melting point thereof and coat the intermediate blanket with a non-porous layer of the adhesion promoter in a liquid state and to change the adhesion promoter on the intermediate blanket from the liquid state to at least one of a solid state and a gel state;
an inkjet print head configured to deposit the ink directly on the solidified adhesion promoter;
a control unit configured to control the inkjet print head to deposit the ink directly on the solidified adhesion promoter corresponding to an image to be formed;
a development unit configured to develop the deposited ink on the solidified adhesion promoter;
a heating unit configured to heat the solidified adhesion promoter with the developed ink deposited directly thereon above a respective softening point thereof and to change the solidified adhesion promoter to the liquid state; and
a transferring unit configured to transfer the developed ink corresponding to the image and the adhesion promoter in the liquid state from the intermediate blanket to the substrate.

12. The apparatus of claim 11 , further comprising:
a removal unit configured to remove at least a portion of the carrier fluid of the deposited ink.

13. The apparatus of claim 11 , wherein the heating unit is configured to heat the solidified adhesion promoter above the respective softening point and change the solidified adhesion promoter to the liquid state prior to transfer of the developed ink and the adhesion promoter to the substrate.

14. The apparatus of claim 11 , wherein the heating unit is configured to heat the solidified adhesion promoter to approximately 140 degrees Celsius to change the solidified adhesion promoter to the liquid state.

15. The apparatus of claim 11 , wherein, with the developed ink and the adhesion promoter transferred from the intermediate blanket to the substrate, the pigments of the ink are disposed between and in direct contact with both the adhesion promoter and the substrate.

16. The apparatus of claim 11 , wherein the adhesion promoter is to be:
heated to the liquid state,
thereafter, coated on the transfer member,
thereafter, changed to at least one of a solid state and a gel state,
thereafter, reheated to the liquid state, and
thereafter, transferred to the substrate.

Assignees

• Hewlett Packard Development Co
• Hewlett Packard Development Co

Inventors

• Birecki Henryk
• Leoni Napoleon
• Gila Omer
• Anthony Thomas C

Classifications

• B41J2/0057 Primary

  where an intermediate transfer member receives the ink before transferring it on the printing material · CPC title

• B41J11/0015 Primary

  for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114) · CPC title