A coating for {HEAD ~ an ink jet printhead front face}, wherein {TAIL ~ the coating} comprises a structured organic film comprising a plurality of segments, a plurality of linkers arranged as a covalent organic framework 
wherein
A coating for { HEAD ~ an ink jet printhead front face } , wherein { TAIL ~ the coating } comprises a structured organic film comprising a plurality of segments , a plurality of linkers arranged as a covalent organic framework
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH