PrintheadsPrintheadsPrinthead ............................................................................................................................................................................. 500Checking for Nozzle Clogging .................................................................................................................................... 500Cleaning the Printhead .................................................................................................................................................. 501Replacing the Printhead ............................................................................................................................................... 502PrintheadPrintheadWhen purchasing, check the Model number.Shape Model numberPF-04Note• For instructions on replacing the Printhead, see "Replacing the Printhead." ➔ P.502Checking for Nozzle CloggingChecking for Nozzle CloggingIf printing is faint or affected by banding in different colors, make sure the Printhead nozzles are clear by printing atest pattern to check the nozzles.Note• Nozzles are periodically checked to ensure they are clear. Configure the settings on the Control Panel menu inNozzle Check. (See "Menu Settings.") ➔ P.414Paper to PrepareWhen Using Rolls An unused roll at least 254.0 mm (10.00 in) wideWhen Using Sheets One sheet of unused paper of at least A4/Letter size1 Load paper.• Attaching the Roll Holder to Rolls ➔P.336• Loading Rolls in the Printer ➔P.339• Loading Sheets in the Printer ➔P.3562 On the Tab Selection screen of the Control Panel, press ◀ or ▶ toselect the Settings/Adj. tab ( ).Note• If the Tab Selection screen is not displayed, press the Menu button.3 Press the OK button.The Set./Adj. Menu is displayed.Printhead iPF780User's GuideMaintenance and Consumables Printheads500