A customer has a printer that needs to be installed and wants to be able to print on both sides of the paper. Which of the following needs to be considered?

Orientation controls whether the page prints in portrait or landscape layout and has no effect on whether both sides of the paper are used.

Duplexing refers to the ability of a printer - either through a hardware duplex unit or a driver-level setting - to print on both sides of a single sheet of paper automatically. A customer wanting double-sided output must verify that the printer has a duplex unit installed (or supports manual duplexing) and that the duplex setting is enabled in the print driver. This is a distinct printer capability separate from layout or finishing options.

Collating determines the order in which pages of a multi-page document are assembled when printing multiple copies, not whether both sides are printed.

Scaling adjusts the size of the printed content to fit a different paper size or percentage and is unrelated to two-sided printing.