Printer is always "waiting for the printer to become available"

My printer used to work very well with CUPS and the named driver. Since a while, it often shows the German equivalent of > Waiting for the printer to become available (original: "Warte darauf dass der Drucker verfügbar wird") whenever I try to print something, even though the printer should be available. * OS: Arch Linux x86_64 * DE: Plasma 5.20.3 * Printer: HP LaserJet P1102 [Devicehunt with Vendor ID](https://devicehunt.com/view/type/usb/vendor/03F0/device/002A) * Driver: Foomatic/foo2zjs-z2 (recommended) The problem is well known and seems to be independent of the specific printer model, but the usual [solution](https://www.linuxquestions.org/questions/slackware-14/waiting-for-printer-to-become-available-4175652261/) does not work for me. I've added the rule with no effect.

$ lsusb                                                                                                    
Bus 004 Device 003: ID 03f0:002a HP, Inc LaserJet P1102

$ cat /etc/udev/rules.d/10-usbprinter.rules
ATTR{idVendor}=="03F0", ATTR{idProduct}=="002A", MODE:="0660", GROUP:="lp", ENV{libsane_matched}:="yes"

I've also tried different USB ports and restarted CUPS (sudo systemctl restart cups.service), my desktop and my printer several times as well as reinstalling CUPS and foo2zjs-z2 (from AUR). Whenever I clear the printing queue and try to print something, the waiting message appears quickly. Trying to print the test page is not different. Weird side effect: The number of pages in the top entry in the printing queue gets incremented every time I restart cups (e.g. shows 5, despite the document only having 1 page, since I've restarted CUPS 4 times after queueing the job). I'd appreciate any help.