Journalctl with no PID message for cups and avahi contemporary failure

Question

I have facing a persistent problem with avahi-daemon and cups as systemd services. They have been enabled but fallen in a failed state as being started. Any investigation of the failures by journalctl (using _PID=) returned no useful info (log period only). Is there another way how to find why the services failed? A dependency between cups and avahi should be IMHO optional and recommended only for those using printers connected remotedly (or managable by users in cups.conf).  I cannot identify wheather the failures are caused by systemd issue, some wrong config file or missing some needed file. Any idea? Thank you all.

Answer 1

Had similar issue with my HP Deskjet F4500C All in one printer, here's what I did:
make sure these packages are installed or install them
pacman -S cups cups-pdf hplip pyqt3 python2-pyqt
pacman -S system-config-printer-gnome
rc.d cups start
To add device and install hp driver:
1. Run ‘hp-setup’ as root.
2. Click ‘Show Advanced Options’ button and check-enable ‘Manual Discovery’.
3. Enter IP address 192.168.59.63 in the ‘…device ID…’ entry and click ‘Next’ to install driver.
run system-config-printer as root, to add printer
# system-config-printer
click “Add”， Select Device -> Network Printer -> input the IP address of the printer such as “192.168.1.3″, click “Find” -> “Process”
you should be ok from here, if not some further steps:
If you encounter the following error:
File “/usr/share/system-config-printer/newprinter.py”, line 1531, in getNetworkPrinterMakeModel
debugprint (host + “: ” + args)
TypeError: cannot concatenate ‘str’ and ‘list’ objects
You should comment out the error line at 1531 of newprinter.py, and then continue to add the printer.
4). Finally, you can run hp-check to see what problems exists for the printer.