HP LaserJet 4000 Printer series - Manual (Page 66)

EN
Chapter 3: Printer Maintenance 55
3
Printer Maintenance
Overview
This chapter explains basic printer maintenance.
•
Managing the toner cartridge.
•
Cleaning the printer.
Note To ensure optimum print quality, the printer will prompt you to have
routine maintenance performed every 150,000 pages. When the
2'4(14/24+06'4/#+06'0#0%'
message appears on the control
panel, contact an HP-authorized service and support provider to
have the maintenance performed. (See the HP Support pages at
the front of this user’s guide.)