User-Agent:       Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2
Build Identifier: 

After some combination of adding and deleting a printer, printing test pages, and canceling at least one page through the Print Status applet, the text of the "Print Test Page" button switched to "Cancel Tests", would not return to "Print Test Page", and when clicked would attempt to print a test page rather than cancel tests.

Reproducible: Always

Steps to Reproduce:
1. With no installed printers, add a new LPD/LPR printer (I added a Canon PIXMA MX340). The printer does not need to exist.
2. Click the "Print Test Page" button.
3. Remove the printer.
4. Add a new printer of any sort.
5. The new printer's "Print Test Page" button will say "Cancel Tests", but when clicked will try to print a test page.
Actual Results:  
The "Print Test Page" button was labeled "Cancel Tests"

Expected Results:  
The "Print Test Page" button should have been labeled "Print Test Page".