Mimaki CJV30-160 stops for no apparent reason

During printing my Mamiki sometimes switches itself from Remote mode to Local and stops with a small beep without any digital warning. I manually put it back in Romote to continue printing.

It's new to me and it's quite embarrassing because sometimes I let it all alone printing at night..

Any idea to find out the reason will be very appreciated!

 

Thank you.
I think both are up to date, Mimaki - v.3.60 and RasterLink - v.5.16.
The only thing I suspect is that the machine cartridges chips are getting dirty, as sometimes it stops printing because one of the cartridges looks empty but all I need to do in this case is to replace it.

 

Yes, I will try to do it myself..

 

For those who are interested.. I think I found the reason for my problem.

I removed the cover and the cartridges and cleaned the eight contacts of the printer chips inside that are in contact with the eight chips of the cartridges. Since that time everything has returned to normal as before.