This Knob, Bolt 117-10313 is suitable for Roland RS-540 printers. This is the original Roland part (number 1000003545).
This part is no longer available. The manufacturer has discontinued it with no replacement.
 
Printer compatibility
Roland LEC-540
Roland LEJ-640
Roland RA-640
Roland RE-640
Roland RF-640
Roland RF-640a
Roland RS-540
Roland RS-640
Roland VS-300
Roland VS-300i
Roland VS-420
Roland VS-540
Roland VS-540i
Roland VS-640
Roland VS-640i
Roland XF-640
Roland XJ-540
Roland XJ-640
Roland XJ-740
Roland XR-640