Exercises G21

Description:
The app attempts to print on DMP printer when the default printer - Laser printer is not found, but the action is not successful.

1. Open the printing app
2. Disable Laser printer
3. Choose a file to be printed out
4. Click on "Print"

Expected result
The selected materials for printing should be printout using DMP printer

Actual result
Materials are not printed and error message is shown