Yield based on recommended average monthly print volume, 8-1/2" x 11" paper, 5% coverage., Use Footnote H for Savin models SLP45/MLP45, Gestetner models P7045/P7145, Ricoh Models AP4500/AP4510 and Footnote C for Savin models 9935D/DP/DPE/9945DP/DPE/2035DPE/2045DPE/2535/p/2545/p/2235/2245, Gestetner models 3235/e/s/3245/e/2135DPE/2145DPE/3502/p/