Fix HP LaserJet 1018/1020 not printing issue in Ubuntu 14.04

     After I upgraded Ubuntu to 14.04 LTS, the HP LaserJet 1020 printer stopped working mysteriously, whatever print job sent to the print, it returns “job completed”, but has nothing to print out. I noticed the HPLIP driver has been used for the printer by default, but it didn’t work either even I changed the driver to foo2zjs via CUPS web interface.
     After googled quite a while, I finally figured out that the foo2zjs package included in Ubuntu has some issues, as well as the HPLIP package. I decided to remove both of them out, and use the correct foo2zjs driver. See below for how:

1. Remove HPLIP package (if you had installed it manually, refer here for uninstall)
   
   Shell

   sudo apt-get remove hplip

   1	sudo apt-get remove hplip

2. Get and install foo2zjs package from official site
   
   Shell

   sudo apt-get install build-essential tix foomatic-filters groff dc wget -O foo2zjs.tar.gz http://foo2zjs.rkkda.com/foo2zjs.tar.gz tar zxf foo2zjs.tar.gz cd foo2zjs make sudo make install sudo make install-hotplug sudo make cups

   1 2 3 4 5 6 7 8

   sudo apt-get install build-essential tix foomatic-filters groff dc wget -O foo2zjs.tar.gz http://foo2zjs.rkkda.com/foo2zjs.tar.gz tar zxf foo2zjs.tar.gz cd foo2zjs make sudo make install sudo make install-hotplug sudo make cups

3. Get HP LaserJet 1020 firmware files, and copy the files to system firmware folder. (use “1018” instead of “1020” for LaserJet 1018 printer)
   
   Shell

   ./getweb 1020 sudo cp sihp1020.* /lib/firmware/hp/

   1 2	./getweb 1020 sudo cp sihp1020.* /lib/firmware/hp/

4. Installing “foomatic-filters” may remove some CUPS packages, you can reinstall the CUPS or do it when you have problem in step 6
   
   Shell

   sudo apt-get -y install cups

   1	sudo apt-get -y install cups

5. Reboot PC and printer
6. Access the CUPS web interface “http://localhost:631” to add HP printer by using foo2zjs drivers