Inkjet printer for semi-porous or non-absorbent surfaces
View Patent ↗Inkjet printers are provided, in one aspect, an inkjet printer has an inkjet print engine that prints an image by jetting drops of hydrophilic liquid to form an inkjet image on a surface of at least one of a semi-absorbent recording medium or a non-absorbent recording medium; a transport system to transport the printed surface to a toner printer having a toner print engine to generate a liquid management toner image with toner particles that are at least in part hydrophilic and to transfer the toner image onto the recording medium where an unabsorbed volume of the inkjet ink will be present on the recording medium. A control system causes the inkjet printer to generate the inkjet image on the surface and causes the toner printer to generate a liquid management toner image that provides toner particles to manage an unabsorbed volume of the liquid.
1. A printer comprising:
an inkjet printer having an inkjet print engine that prints an image by jetting drops of hydrophilic liquid to form an inkjet image on a surface of at least one of a semi-absorbent recording medium or a non-absorbent recording medium;
a transport system to transport the printed surface to a toner printer having a toner print engine to generate a liquid management toner image with toner particles that are at least in part hydrophilic and to transfer the toner image onto the recording medium where an unabsorbed volume of the inkjet ink will be present on the recording medium; and
a control system causing the inkjet printer to generate the inkjet image on the surface and causing the toner printer to generate a liquid management toner image that provides toner particles to manage an unabsorbed volume of the liquid hydrophilic inkjet ink on the surface to protect the recording medium from image artifacts that can be created by the unabsorbed volume of the inkjet ink on the surface without a liquid management toner image.
2. The printer of claim 1 wherein the liquid management toner image is transferred to a receiver after at least a portion of a liquid in the inkjet ink has been absorbed by the recording medium.
3. The printer of claim 1 , wherein the surface is an intermediate transfer surface and the inkjet image and the toner image are transferred from the surface onto the recording medium.
4. The printer of claim 1 , wherein the semi-absorbent surface is a surface of a non-absorbent recording medium.
5. The printer of claim 1 , wherein the semi-absorbent surface is the recording medium.
6. The printer of claim 1 , wherein the toner particles are at least in part open cell porous type of porous toner that allows the hydrophilic ink to flow through the toner particles.
7. The printer of claim 6 , wherein the open cell porous toner contains hydrophilic addenda within the cells.
8. The printer of claim 1 , wherein the toner particles have at least one of a binder material that is hydrophilic, an addendum that is hydrophilic, or a coating that is hydrophilic.
9. The printer of claim 1 , wherein an optical transmission density of a monolayer of a toner for white light is less 0.05 after the toner is fused.
10. The printer of claim 1 , wherein the liquid management toner image has a different size, shape, or image resolution as compared to the portions of the inkjet image to which the liquid management toner image corresponds.
11. The printer of claim 1 , wherein the liquid management toner image is determined to provide toner to any portion of the surface of the receiver for which an amount of ink that is printed is above a threshold.
12. The printer of claim 1 , wherein the amount of toner particles in the image increases monotonically with the volume of liquid ink applied to the recording medium.
13. The printer of claim 1 , wherein the liquid management toner image at least in part provides coverage on any portion of the inkjet image that is above a threshold image density.
14. The printer of claim 1 , wherein an amount of toner particles in the toner image increases monotonically with image density.
15. The printer of claim 1 , wherein the toner image is removed after the ink has dried.
16. The printer of claim 1 , wherein the toner image is fused to the recording medium and the heat of fusing at least in part dries the liquid ink.
17. The printer of claim 1 , wherein the toner particles of the toner image are at least in part fused together and to the recording medium by application of microwave energy that heats liquid components of the hydrophilic ink heating the liquid components, which in turn heat the toner causing the fusing.
18. The printer of claim 16 , further comprising the step of heating the liquid management toner image and the ink prior to the fusing.
19. The printer of claim 16 , wherein the toner image is patterned to include pathways for any liquid vaporized during fusing to escape from within the toner image without disrupting the toner image.
20. The printer of claim 1 , wherein the toner particles absorb at least a part of the unabsorbed volume of the inkjet ink.