Are Dell ink cartridges only compatible with Dell printers?

Yes, DELL ink cartridges are specifically tailored for DELL printers. But with this these cartridges can be used in other devices manufactured by DELL like scanners, fax and photo copiers. DELL offers a wide array of printers, and their ink cartridges cost about 10 to 30 dollars. A list of ink cartridges to their corresponding printers can be accessed through the main DELL website. Not only for DELL, this is same the case with all other brands that they produce cartridges only for their on printers.