Canon Hewlett Packard HP Deskjet Officejet Photosmart Printer Cleaner: 5oz 150ml Kit User-friendly Kit for HP and Canon inkjet printers. No expertise required NOT COMPATIBLE WITH THE OFFICEJET PRO 8xxx SERIES e.g. 8600 NOT COMPATIBLE WITH PRINTERS THAT ACCEPT CARTRIDGES INTO THE FRONT OF THE PRINTER Online instruction videos Works in 90% of cases with a $15.00 refund if unsuccessful