Being a buyer in the 21st century means you have the capability to use the internet as a place to gather as much information as possible. Watching some Video on Toner can give you a great idea of the differences between it and ink, and whether or not your printing needs may be best suited to one or the other. It would be irresponsible of you not to at least learn a little bit before making a purchase.
The most general difference between toner and ink cartridges is the material within. Ink, as the name suggests, is syrupy liquid that takes a while to dry and can be a mess if it gets lose. Toner cartridges, on the other hand, are filled with a type of powder that does not need to take time to try and can produce documents at a much higher volume than its ink counterpart is capable of doing.
Many larger companies, the kind that print thousands of pages in a month, prefer to use toner because of its accommodation to larger yields. Practically every copy machine in the world uses toner, not ink, to get the job done. The drawback, however, is that toner tends to be much more expensive than ink cartridges, meaning the average individual can not afford to use it regularly.
If you are looking for a printer that will compliment your laptop or desktop computer, and you do not plan on reeling out hundreds of documents in a week, an inkjet model machine is probably your best bet. If you are running a small business, where stationary and records are a fact of life, than investing a little more in a toner printer will probably make your life easier.