Although different types of toner can look quite similar to the naked eye, they can differ greatly in terms of their properties and actual makeup. As a result, toner that works in one machine may not necessarily work in another.

However, this does not mean that you are limited to the specific type of toner specified by the manufacturer. Many models, particularly laser printers, can often use the same exact toner. In addition, there are vendors that produce generic versions of popular types of toner.