I resolved the issue by setting proper Page Size (62 x 38 mm) in CUPS and glabels. My QL-570 is now working with the latest driver version 1.4.2-3+b1 from Ubuntu. I attached the glabels template for reference. It is also possible to print smaller labels (same width, different height) without adjusting the printer settings. Perfect!
~napk ** Attachment added: "Brother_DK44205_62x38.template" https://bugs.launchpad.net/ubuntu/+source/ptouch-driver/+bug/1735991/+attachment/5173684/+files/Brother_DK44205_62x38.template -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1735991 Title: QL-570 printer : the led flashes red and nothing happens To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ptouch-driver/+bug/1735991/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs