In System->Administration->Printing, when choosing a printer's property, we have three options: "print test page" "print self-test page" and "clean print heads".
I was wondering what their differences are? Thanks and regards!
A test page is one sent from Ubuntu containing the Ubuntu/CUPS logo and some coloured charts.
A self-test page is a simple command sent to the printer to instruct it to do exactly that - most printers will print out a sheet showing the expected life of their ink cartridges/drum, toner, how many pages they've printed in their life and so on. Having said that, Self-Test Page doesn't work on either my Brother HL-2030 or my HP 2605dn via CUPS. The 2605dn prints "PrintSelfTestPage" and the HL-2030 does nothing!
Clean print heads should be fairly self explanatory though :)