multiple - resolution , interlace , ink - jet printing is accomplished pseudo a single array with multiple nozzles by assuming a psuedo pel spacing k &# 39 ; between the nozzles . the ratio between the old resolution and the new resolution is k &# 39 ;/ k where k is the actual pel spacing between the nozzles . the print - data must be processed and the print head moved based on the pseudo pel spacing k &# 39 ;. the array of nozzles will still print in an interlace manner so long as k &# 39 ; and nt have no common factor .