A printhead is a crucial component of inkjet printers that applies ink onto paper to create text and images. It contains tiny nozzles that spray microscopic droplets of ink in precise patterns, allowing for high-quality printing. The printhead moves back and forth across the page, depositing ink as it goes. Printheads can vary in design and technology, with some using thermal mechanisms to heat the ink and create vapor bubbles, while others use piezoelectric crystals to push the ink out. Regular maintenance of the printhead is essential to ensure optimal performance and prevent clogs, which can affect print quality.