XC-540 Assy, Pulley - 6700319030 ,this is original Roland parts.

VJ-1604 printhead DF-49684, Originial and Green connector

this is original for new ...

LEC-300 assy,circulating pump-6701219010

Soljet pump (ASSY SUB XC-540) - 6700319010 

Konica Printhead KM1024 MHB 14PL UV Print Head

Konica KM1024 MNB 14PL Printhead Solvent

RS-540 Media Clamp L & R -6700989020/ 6700989030

this is made in Japan

and ...

Konica KM1024 SHB 6PL Printhead

VP-540 Media Clamp L &R - -6700469040/ 6700469050

this is made in Japan

 Xaar Proton 382 35PL Printhead

Spectra Sapphire QS-256 / 30PL Printhead ...

Printer head From Epson WF4720/4730/4734/4740 Printhead