Compatible Toner Cartridge Replacement for HP 87A CF287A 87 287 A (Black, 1PK) Q5949X Are there any tips for

Are there any tips for maximizing the page yield of the compatible HP 206X 4-Pack toner cartridges

-----3 years warrantee and 2 years shelf life

please note that you had better to turn off the automatic upgrade of the printer firmware

Canon 069H black from Canon 069 series also is sold at a affordable price at Cooltoner

MFC-8950DW/8950DWT

Compatible Toner Cartridge Replacement for HP 87A CF287A 87 287 A (Black, 1PK) Q5949X Are there any tips forCompatible for HP 87A CF287A Standard Yield Toner Cartridges also Available in HP 87X CF287X High Yield Toner Cartridges Include: 1 Pack 87A (CF287A) Black Toner Cartridge Page Yield: 9,000 Pages per Black 87A (CF287A) Toner Cartridge Based on 5% coverage (Letter A4) Compatible for Printer: HP LaserJet Enterprise M506; HP LaserJet Enterprise M506dn; HP LaserJet Enterprise M506n; HP LaserJet Enterprise M506x; HP LaserJet MFP M527dn; HP LaserJet MFP