tilt can produce a rather substantial degree of vertical separation by tilting the print head 102 relative to the print medium 101 the nozzles of the left column can be vertically aligned with the nozzles of the right column in other words each nozzle in the left column 103 has a corresponding nozzle in the right column 104 which also corresponds to that same x axis xm of the print medium it can be seen that each of the rows 105 107 on the print medium 101 has a corresponding set of two nozzles for ejecting ink onto those respective rows this nozzle redundancy design is advantageous because if one nozzle were to misfire clog or otherwise malfunction the other nozzle would be available to fire in its place because it is located in the same horizontal position for example if one of the nozzles in the right column were to malfunction the corresponding nozzle in the left column would be able to fire on that same line although in some situations this may lead to a slight degradation of the image quality it nonetheless is much better than having no functioning nozzles available to print on the row for instance rather than missing data for an entire line the line with the defective nozzle might appear slightly lighter in color the.