Roland VS-640 / FH-740 / RE-640 / RA-640 Ink Damper.
To prevent your print head clogged, you should replace these dampers frequently.The frequency of replacement is set based on the workload of the machine.
Warm Tips:
To prevent your print head clogged, you should replace these dampers frequently. The frequency of replacement is set based on the workload of the machine.