A printhead is interfaced to {HEAD ~ the processor} and is configured to print ink supplied from {TAIL ~ the ink cartridge} 
A printhead is interfaced to { HEAD ~ the processor } and is configured to print ink supplied from { TAIL ~ the ink cartridge }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL