Abstract: Methods of printing a desired color image on a printing medium by construction from individual ink drops deposited in pixel arrays includes passing a multiple-nozzle ink-discharging pen or an odd number of staggered pen cartridges across the medium multiple times, each pass creating a portion of a respective segment of the image, and periodically advancing the medium so that portions of successively different segments are created by the pen(s). During each pass, the “portion-creating” function includes discharging from the pen(s) an odd submultiple of the full density of ink desired in the segment of the desired image that is being created, so that printing full density in each segment requires an odd number of passes. The medium is advanced by an odd submultiple of the height of the segment being created in each pass and is preferably advanced after each pass of the pen(s). The portion-creating includes creation by the pen(s) of a multiplicity of spaced-apart diagonal lines.

Abstract: A method of printing a desired color image on a printing medium by construction from individual ink drops deposited in pixel arrays includes passing a multiple-nozzle ink-discharging pen across the medium multiple times, each pass creating a portion of a respective segment of the image, and periodically advancing the medium so that the pen creates portions of successively different segments. During each pass, the "portion-creating" function includes discharging from the pen an odd submultiple of the full density of ink desired in the segment of the desired image that is being created, so that printing full density in each segment requires an odd number of passes, preferably three. The medium is advanced by an odd submultiple of the height of the segment being created in each pass and is preferably advanced after each pass of the pen. For the preferred three passes, the odd submultiple of the height of the segment is preferably one-third.