Subcovered printing mode for a printhead with multiple sized ejectors

A method of printing with an ink jet printer, comprising the steps of:

• providing a printhead having a plurality of first nozzles with a first size and a plurality of second nozzles with a second size larger than said first size;
• providing print data corresponding to first columns of pixel locations, the print data including both a respective large dot print datum and a respective small dot print datum corresponding to each pixel location in said first columns of pixel locations;
• printing one of said respective large dot print datum and said respective small dot print datum onto said each pixel location in said first columns;
• providing second columns of pixel locations interleaved with said first columns of pixel locations, each pixel location in said second columns corresponding to a respective said pixel location in said first columns;
• and
• printing an other of said respective large dot print datum and said respective small dot print datum not printed in said first columns onto each said corresponding pixel location in said second columns.

A method of printing with an ink jet printer, comprising the steps of:

• providing a printhead having a plurality of first nozzles with a first size and a plurality of second nozzles with a second size larger than said first size, said first nozzles and said second nozzles being alternatingly disposed in a vertical direction;
• defining a first set of pixel locations receiving ink only from said first nozzles;
• defining a second set of pixel locations receiving ink only from said second nozzles, said pixel locations from said first set and said pixel locations from said second set being alternatingly disposed in a horizontal direction;
• using said first nozzles to jet ink onto said first set of pixel locations;
• and
• using said second nozzles to jet ink onto said second set of pixel locations.

A method of printing with an ink jet printer, comprising the steps of:

• providing a printhead having a plurality of first nozzles with a first size and a plurality of second nozzles with a second size larger than said first size, said first nozzles and said second nozzles being alternatingly disposed in a vertical direction, each said first nozzle being separated from an adjacent said second nozzle by a first distance in the vertical direction;
• defining a matrix of pixel locations including a plurality of first pixel locations and a plurality of second pixel locations, said first pixel locations receiving ink only from said first nozzles, said second pixel locations receiving ink only from said second nozzles, said matrix including adjacent rows separated from each other by a second distance equal to one-half of said first distance, pairs of said first pixel locations and pairs of said second pixel locations being alternatingly aligned in each vertical column of said matrix;
• and
• using said printhead to jet ink onto said matrix of pixel locations.

A method of printing with an ink jet printer, comprising the steps of:

• providing a printhead having a plurality of first nozzles with a first size and a plurality of second nozzles with a second size larger than said first size, said first nozzles and said second nozzles being alternatingly disposed in a vertical direction, each said first nozzle being separated from an adjacent said second nozzle by a first distance in the vertical direction;
• defining a matrix of pixel locations including a plurality of first pixel locations, a plurality of second pixel locations, and a plurality of third pixel locations, said first pixel locations receiving ink only from said first nozzles, said second pixel locations receiving ink only from said second nozzles, said third pixel locations receiving ink from said first nozzles and said second nozzles, said matrix including adjacent rows separated from each other by a second distance equal to one-half of said first distance, each said first pixel location being separated from at least one second pixel location by said first distance in the vertical direction, each said second pixel location being separated from at least one first pixel location by said first distance in the vertical direction, each said third pixel location being separated from at least one other said third pixel location by said first distance in the vertical direction;
• and
• using said printhead to jet ink onto said matrix of pixel locations.