The printhead has rows of printing nozzles with each nozzle row formed by {HEAD ~ adjacent sub rows} of {TAIL ~ printing nozzles} of adjacently disposed printhead modules 
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The printhead has rows of printing nozzles with each nozzle row formed by { HEAD ~ adjacent sub rows } of { TAIL ~ printing nozzles } of adjacently disposed printhead modules
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH