Hi! I've just got my QL-570 working with this updated driver. The QL-570 support fixes padding problems I encountered with QL-550 driver, and seems to work just fine, although there are two minor problems:
- NegativePrint=True causes error on the printer side, and cups reports "Unknown RLE flag at 0x1beb0ea: '0x00'"
- CutMedia=JobEnd doesn't cut. The label is printed, but not cut. =LabelEnd works as expected.
Other features seem to work fine. I have not yet tested printing on a continuous tape.