File: /etc/hotplug/usb/hplj1000 41 # 42 # Path to the USB CUPS backend. We use this backend to upload the firmware 43 # into the printer when we are on a CUPS/libusb-based system. 44 # 45 USB_BACKEND=/usr/lib/cups/backend/usb But actual path to the CUPS backend is /usr/libexec/cups/backend/usb. This causes firmware uploading failure and make printer unworkable. Reproducible: Always
Fixed, please re-emerge the driver in an hour or so.