Circulation wastes ink only if you begin printing after a 8 hour period from the previous print. If you don’t use the printer then there’s no waste.

CMYK jobs do not waste any. Besides normal light cleaning.

Yes, worth the upgrade.

I usually supply the machines with Thomas Picolino VTE-3 vacuum pump. Expensive but powerful and quite silent.

I also resurface the Roland original vacuum bed with a special insert.

Does the cutter say anything on screen?

For testing purposes only! Never leave the machine cutting unattended when the tapes are on.

Not even for a fraction of a second?

Yea, you don't need to enable updates right now. 5.51 is fine.

Again, next time you need to do this avoid 4.x installers. Install from a 5.x package.

The strange thing is, this only happens when I am cutting black garment vinyl, not with other colours. This is probably caused by the specific physics of this media. Check that the media falls freely both in the front and back of the machine. If you use it on your desk check that when the media mov...

You can with the help of a Roland tech but there's no guarantee the print head will work fine with the new ink. We have done it but it's taken a few weeks with a cleaning cartridge in the printer (in white/metallic bay) to ensure a proper flush.

If the cutting line alone wanders (print is perfectly square) then your scan motor on its last leg.

Honestly, I don't know if it can be done in BN-20. I usually do it in the service application.