Printing defaults and preferences both refer to settings that can be changed to make printing easier or to adjust the output of a printed document. The difference is that preferences are user-specific settings, while printing defaults are general settings that apply to everyone.
To adjust printing defaults, go to the printer's settings either by going into the printer's menu on the control panel, or by opening the printer's software on your computer. From there you can adjust the default settings such as the paper size, type, orientation, and other options.
Printing preferences are available in most applications and allow you to adjust the settings for each document you are printing. These settings are specific to the document you are printing and can override the default settings. To access the printing preferences, go to the File menu in the application and select Print. This will open a dialog box with the printing preferences.
It is important to understand the differences between printing defaults and preferences so that you can adjust the settings to get the results you desire.