It’s print drivers are not very good. No fax driver for iphone iOS. Using iphone, it takes a long time to print a pdf file. It has no spooling feature in its iphone driver. It uploads each page one by one and prints each page then uploads the next page, instead of uploading the entire file and then printing it in the background. Also the ink replacement feature is unclear and confusing and does not work. It does not detect when toners are low. There is no mechanism to access the ink replacement site using the print driver. There is no clear URL for ink replacement site.