HP LaserJet 4050, 4050N, 4050T and 4050TN Printers - User's Guide

EN
Chapter 3: Printer Maintenance 85
4 Replace the toner cartridge, close
the top cover, plug in the power cord,
and turn the printer on.
Note
If the message
NEW TONER CARTRIDGE
= NO
appears, ignore the message
when removing the toner cartridge to
clean the printer.