6-2 Phaser 6121MFP Service ManualAdjustments and CalibrationsAdjust Function ProceduresUsing the Adjust FunctionsThe Adjustment Setting section contains detailed information on the adjustmentitems and procedures for this machine. Before attempting to solve the customerproblem, perform these checks:• The power supply voltage meets the specifications.• The power supply is properly grounded.• The installation site is environmentally appropriate: high temperature, highhumidity, direct sunlight, ventilation, etc.; levelness of the installation site.• The original has a problem that may cause a defective image.• The density is properly selected.• The original glass or related part is dirty.• Correct paper is being used for printing.• The units, parts, and supplies used for printing are properly replenished.• Toner is not running out.Service ModeEntering Service Mode1. On the initial screen, press the following buttons in this order.OK > Stop/Reset > 0 > 0 > Stop/Reset > 0 > 1The Control Panel displays the following:Service ModeService’s ChoiceAdjustmentCounter2. Press Up or Down to navigate through the menu.3. Once you find the desired function, press the OK button again to enter thesubmenu or initiate the action.NotePressing the Back/Menu at any level takes you up to the previous commandlevel.Exiting Service Mode1. Press Stop/Reset to exit.