I bought my Kyocera printers as "demo" with refill cartridges from my computer Schnuffi last year. According to him the accessories toner are just as good as the originals. I had previously -except the beautiful black bars on the Blattrückseite- about 500 error messages 7404, 7401, etc. Then again, toner out, clean, lid on, off, on, lid, toner back in, on, off, cover, waste toner box, 10 min. wait ......... aaahh goes again. Most even several hours at a time. I saw the printer already on a garbage truck drive off -because the lost work in any Verhöltnis printer Price longer stand because I decided to order an original toner cartridge. She came the next day, was installed and gone were the black bars and the error messages. I love my Kyocera. Therefore: Use only genuine cartridges, the money saved in the Zubehörgedöne you do later on it (see above)