What are the recommended intervals for replacing consumable parts like toner, ink cartridges, or drum units in both printers and copiers?	                
										
        menu
        menu
        Menu
    
    cancel
        - arrow_back_iosBacknavigate_nextperson_outlinePersonal
- add_taskProject Board
- workJob Board
- swap_callsService Swap
- shopping_bagMarketplace
- handshakeProfessionals
- arrow_back_iosBacknavigate_nextlanguageSocial
- live_helpFAQ
 
            