4 Okidata MB451, MB411 MB431, MB461, MB471 and MB491 Drum Reset Code Fuses
By buying these 4 fuses you acknowledge all liability for both your installation and usage of fuses inside your printer. Along with any damage done to the drum or printer. We do not warranty the fuses, the drum, or your printer. With that said the procedure is actually quite simple.
E-Z instructions provides as link upon request included with this purchase, no soldering required. As easy as stick and peel solution without the extra cost.