The most common issue which can cause this is setting the Page Size incorrectly in the driver. You'll get the red flashing light if the intended page size doesn't match the label.
The other issue is swapping the X and Y dimensions - the X (as far as the printer is concerned) is across the printer; the Y axis is the direction the label feeds. Note that most of the Ptouch labels are longer (Y axis) than they are wide (X axis), but the dimensions on the label box are the other way around. This means you need to specify the paper size as it is on the physical label (i.e. longer than wide) then rotate the label (e.g. gLabels's "Rotated" option). What are you trying to print, and with which application? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to ptouch-driver in Ubuntu. https://bugs.launchpad.net/bugs/1735991 Title: QL-570 printer : the led flashes red and nothing happens Status in ptouch-driver package in Ubuntu: New Bug description: The label printer Brother QL-570 refuses to print ... When I ask the printer to print, the led flashes red and nothing happens. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: printer-driver-ptouch 1.4.2-2 ProcVersionSignature: Ubuntu 4.13.0-17.20-generic 4.13.8 Uname: Linux 4.13.0-17-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.5 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Dec 3 13:46:56 2017 InstallationDate: Installed on 2017-12-03 (0 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018) SourcePackage: ptouch-driver UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ptouch-driver/+bug/1735991/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
