Which component moves back and forth across the page during printing in an inkjet printer?

The component that moves back and forth across the page during printing in an inkjet printer is the printhead. The printhead has nozzles that eject microscopic droplets of ink onto the paper to create the desired text and images. As the printhead moves side to side, it applies ink in precise patterns while the paper is fed through the printer in a forward motion. This movement is essential for producing high-quality prints, as it allows for accurate placement of ink.

While the carriage belt is involved in the movement of the printhead, its primary function is to facilitate the horizontal movement of the printhead, not directly applying ink to the page. Rollers are responsible for feeding the paper into the printer and helping to guide it through the printing process, whereas the feeder refers to the mechanism that holds and supplies paper to the printer. Although these components play important roles within the printer, it is the printhead that specifically moves back and forth to carry out the actual printing work.