How might the concept of complementary goods be illustrated using the example of printers and ink cartridges, and how would a price change in one affect the other?

Printers and ink cartridges are complementary goods because the use of one increases the demand for the other. If the price of printers falls, more people might buy printers, increasing the demand for ink cartridges. This increase in demand would shift the demand curve for ink cartridges to the right, leading to a higher equilibrium price for cartridges if supply remains constant. Conversely, an increase in the price of ink cartridges might reduce the demand for printers, as the overall cost of printing increases.