Exercises G21

Description
In cases where the Laser printer is not accessible or unavailable, the application attempts to locate the Dot Matrix Printer as an alternative but, during this process, the application encounters errors repeatedly, preventing successful printing.

Steps to reproduce
1) Open the printing application.
2) Navigate to the "Select Printer" dropdown menu.
3) Notice that the Laser printer is always selected as the default option in the dropdown menu.
4) Disconnect the Laser printer.
5) Print a document.
6) Notice the error message.

Expected Result
When the Laser printer is unavailable, the application should switch to the Dot Matrix printer and should print without errors.

Actual Result
When the Laser printer is unavailable, the application attempts to switch to the Dot Matrix Printer but generates error messages, preventing successful printing.