Till, The printer in question is was used completely *outside* CUPS - via the /dev/usb/lp* nodes only. Although there was also an attempt with using it with a raw queue - with the same result: whenever CUPS was enabled or the printer was not blacklisted the output from the printer was malformed.
My understanding is that something that CUPS libusb backend was doing in the 'probing' phase (backends/usb-libusb.c find_device()) is influencing the printer configuration and changing it's settings set by control characters. Attaching the lsusb portion related to the printer in question. ** Attachment added: "lsusb-out.txt" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1695884/+attachment/4889973/+files/lsusb-out.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1695884 Title: usb probing malforms Epson TM-T70 label printer output To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1695884/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
