I try to script everything I can on Linux. When I install something on my desktop, I like to be able to run a script to install the same thing on my laptop. When a computer breaks, I like to be able to run all the scripts to have it set up again just the way that it was. Here is how I scripted the installation of my printer.
I own a Brother HL4570CDW color laser printer. It is a network printer that uses standard postscript drivers. I have it installed on my home network at a static IP address: 192.168.1.9. Having worked for the laser printer company GCC Printers, I know that to install this type of business printer, you generally only need a “PostScript Printer Description” (PPD) file. The PPD file is little more than a configuration text file that lists all the options that the printer supports.
Ubuntu comes with PPD files for a large number of printers preinstalled. My particular printer is not in the list of printers in Ubuntu’s “add printer wizard”. Fortunately, Brother supports Linux (and Ubuntu) very well. I could download installable packages that provide this PPD and put it into the lists available to the make it available to both the LPD and CUPS printing systems. From Brother’s Linux driver download page, I downloaded both the LPD and the CUPS drivers in deb format. The CUPS driver depends on the LPD driver, so to get printing working for most programs in Ubuntu, you need both drivers. These drivers want to use
/var/spool/lpd which is not a directory that Ubuntu has by default. To get the drivers to install properly, I had to create this directory for them. Then I could install them:
sudo mkdir -p /var/spool/lpd/
sudo dpkg --install hl4570cdw*.deb
At this point, I could install the printer using the GUI tools available under Ubuntu.
Next I needed to gather information for the command line tools. A list of all printer makes and models that can be installed is available with the command
lpinfo -m. Using this command, I found that the model name that the command line tools expect for my printer is “HL-4570CDW series CUPS” and its PPD file is “brhl4570cdw.ppd”. I found the PPD file installed at its full path by the brother drivers:
/usr/share/ppd/brhl4570cdw.ppd. Once the printer is installed, you cane use the command
lpoptions -l to figure out the various options available for your particular printer. I set some of these options for my printer.
Now I could construct a command line to install my printer. Printers can be installed with
lpadmin. Here are the command line options that I settled on:
-p 'Brother-HL-4570CDW'– The name of the installed printer
-v 'socket://192.168.1.9'– The network address of the printer
-m 'HL-4570CDW series CUPS‘ – The make and model of the printer from lpinfo -m
-P '/usr/share/ppd/brhl4570cdw.ppd'– Path to the ppd file
-L 'Basement Utility Room'– Location of the printer
-o 'Two-Sided Printing=DuplexNoTumble'– Option to enable long edge duplex
-o 'Color=Mono'– Disable color printing by default
-o 'Enhance Black Printing=ON'– Enhance black
-o 'Skip Blank Page=ON'– Skip blank pages
-E– Enable the printer
I wanted to make my printer the default printer on my system, so I use the command
lpadmin -d 'Brother-HL-4570CDW'
At this point, the printer is installed from the command line, however, I discovered that
lpoptions -l knows about the printer options (like duplex) that I chose, but CUPS does not. Neither the printer properties in the GUI (
system-config-printer) nor the local CUPS administration webpage (
http://localhost:631/printers/) showed that duplex was enabled for the printer. After some research, I found that CUPS stores its own options outside of LPD. It creates a copy of the PPD, and rewrites that PPD every time you change the printer options. It ignores the LPD options set with
lpoptions. The CUPS copy of the PPD is in
/etc/cups/ppd/Brother-HL-4570CDW.ppd. I used some
sed commands to modify that file in place the same way that the CUPS GUI does it.
So here is the final full script to install the printer from the command line:
# Check to see if the drivers are installed if [ ! -e /usr/share/ppd/brhl4570cdw.ppd ] then sudo mkdir -p /var/spool/lpd/ sudo dpkg --install hl4570cdw*.deb fi # Check to see if the printer is already installed if [ `lpstat -p 2>&1 | grep -E 'HL.?4570.?CDW' -c || true` = "0" ] then # Make sure the printer is available before trying to install it (check the printer web page) if [ `curl -s http://192.168.1.9/main/main.html | grep -c 'Brother HL-4570CDW' || true` = "0" ] then echo "Printer cannot be found at http://192.168.1.9/main/main.html" exit 1 fi echo "Installing Brother-HL-4570CDW" lpadmin \ -p 'Brother-HL-4570CDW' \ -v 'socket://192.168.1.9' \ -m 'HL-4570CDW series CUPS' \ -P '/usr/share/ppd/brhl4570cdw.ppd' \ -L 'Basement Utility Room' \ -o 'Two-Sided Printing=DuplexNoTumble' \ -o 'Color=Mono' \ -o 'Enhance Black Printing=ON' \ -o 'Skip Blank Page=ON' \ -E # Set it as the default printer lpadmin -d 'Brother-HL-4570CDW' echo "Setting up CUPS default print options" sudo sed -ir 's/DefaultBRDuplex.*/DefaultBRDuplex: DuplexNoTumble/g; s/DefaultBRMonoColor.*/DefaultBRMonoColor: mono/g; s/DefaultBREnhanceBlkPrt.*/DefaultBREnhanceBlkPrt: ON/g; s/DefaultBRSkipBlank.*/DefaultBRSkipBlank: ON/g;' /etc/cups/ppd/Brother-HL-4570CDW.ppd fi