HP Laser MFP 135a, 4ZB82A / Print, copy, scan, Black and white, Print speed up to 21 ppm HP 105A Black Original Laser Toner Cartridge.

HP LaserJet Pro M15w Printer, Black and White, Print only, wireless Print speed: Up to 19 ppm (black) HP 44A LaserJet Black Toner Cartridge

Hp LaserJet M28a Printer, Black and white, print, scan, and copy, Print speed black (normal, A4) Up to 18 ppm

HP Neverstop Laser MFP 1200w, Black and white, Print scan and copy, High volume printing up to 5000 pages, Print speed up to 21 ppm