Patent ID: 8960856
Filing Date: 2015-02-24
Classification: B41J,H04N

Abstract:
1. A multi-pass printing method comprising: printing a first multi-color image including a combination of colors on a substantially translucent or transparent substrate using a first group of ink jets within a print head array on a print carriage during a first pass of the carriage, wherein the first group of ink jets contains the colors necessary to print the first multi-color image, wherein the substantially translucent or transparent substrate has a first side and a second side, and wherein the first multi-color image is printed on the second side; and printing an at least partially opaque coating layer over the first multi-color image using a second group of ink jets during a subsequent pass of the carriage, wherein the at least partially opaque coating layer comprises a layer of ink, the layer of ink comprising a combination of white ink and process inks, wherein the at least partially opaque coating layer comprises a second multi-color image in the form of but with less intensity than the first multi-color image, wherein the first group of ink jets and the second group of ink jets are both configured in the printer carriage, and wherein the at least partially opaque coating layer enables viewing of the first multi-color image from the first side of the substantially translucent or transparent substrate both (a) when ambient lighting is at a level above a back lit source and (b) when back light is at a level above ambient lighting.