HP DeskJet 550C (C2121A)
MFG Part Number: C2121A
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Printer Support Linksshow
PC Board DC parts for C2121A HP DeskJet 550C Printer
C2121A-PC_BRD_DC
PC Board DC - Internal power supply board - power cable plugs on this assembly, remove covers to install pc board.
DeskJet 550C Printer parts list