Need Help Question Roland VS-300 convert to CMYK

Hello,
I have an older Roland VS-300 that I was given because it is believed the print head is bad. I am wanting to test the cutter but don't have all the colors to get past the boot sequence. Right now it is setup as 6 color with LC and LM. I would like to change it to dual CMYK as I have those cartridges on hand and can get past the boot setup to see if it will even cut.

I have searched to see if I can find the service manual for this printer, but didn't find any that were specified for the vs-300. I would be grateful if anyone could help me with this conversion. I do realize that if the printer does end up working I will have to flush or replace the lines, and clean the print head.

 

I am going to do that but right now I only have the CMYK colors. I would have to purchase LC LM to get it to boot or convert it over to 4 color. I'm having a hard time spending any money on it until I know if it will work at all.

 

Yes it was given to me. The person I got it from did not have any of the old carts, and I have the CMYK ones already which is why I was going to convert it. If someone has an old LC and LM they want to get rid of I would be happy to take them off their hands and cut the tab off for testing. I figured converting it might be the fastest way to get in and test, but If I can come up with the other 2 carts that would be the perfect solution. I am 99% sure the print head is completely dead and all the lines are dried up, but want to see if it will even cut.