Diagnostic aids 3-251. Turn off the printer.2. Press and hold and .3. Turn on the printer.4. Release the buttons after ten seconds.The message CONFIG MENU displays on the top line of the operator panel.Available menusSome menus are not available, depending on the configuration of the printer.Maintenance page count (Maint Cnt Value)The current value for the maintenance page counter is displayed. This counter tracks printer usage. A print jobcontaining a single page increments the counter by one and a duplex page by two. At 300,000, the customer isreminded that the printer requires scheduled maintenance. This counter is reset by the servicer after an 80Scheduled Maintenance message displays, and a maintenance kit is installed. See “Maintenance kit” onpage 6-2 for the part number.Maint Cnt Value See “Maintenance page count (Maint Cnt Value)” on page 3-25Reset Cnt See “Maintenance page counter reset (Reset Cnt)” onpage 3-26Prt Quality Pgs See “Print quality pages (Prt Quality Pgs)” on page 3-26Reports See “Reports” on page 3-26.SIZE SENSING See “SIZE SENSING” on page 3-27Panel Menus See “Panel Menus” on page 3-27PPDS Emulation See “PPDS Emulation” on page 3-27Demo Mode See “Demo Mode” on page 3-27Factory Defaults See “Factory Defaults” on page 3-28LES Applications See “LES Applications” on page 3-28Energy Conserve See “Energy Conserve” on page 3-28Paper Prompts See “Paper Prompts” on page 3-28Env Prompts See “Env Prompts” on page 3-28Action for Prompts See “Action for Prompts” on page 3-28Font Sharpening See “Font Sharpening” on page 3-28Wiper Messages See “Wiper Messages” on page 3-28Clear Custom Status See “Clear Custom Status” on page 3-28Best Speed See “Best Speed” on page 3-29Exit Config MenuEntering Configuration Menu (models 5230n/dn, 5350dn, and 5530dn)Configuration menu (CONFIG MENU) (models 5230n/dn, 5350dn, and5530dn)See “Exit Config Menu” on page 3-29