Roland DX7 Printhead Guide: RE-640, VS-640 & RA-640
We get calls about the DX7 every single week. Someone's Roland RE-640 is banding. A VS-640 is dropping a colour channel. A shop owner in Texas just ran a nozzle check and half the nozzles are gone....
When To Replace Printhead – 3 Major Signs To Consider
The printhead is the most complex and technically demanding part of an ink-jet printer. Printheads are tiny nozzles and they perform the most crucial job in printing. They fire tiny ink droplets th...
