How do you adjust print size on HP K80?

To adjust the print size on an HP K80 printer, access the print settings from your computer. On Windows, go to "Control Panel," select "Devices and Printers," right-click on the HP K80, and choose "Printing Preferences." From there, you can adjust the paper size and scaling options. For Mac users, go to "Print" in the application, select the HP K80, and adjust the settings in the print dialog box before printing.