Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to replace an ink cartridge in an epson workforce 545 [title] Power on your epson workforce 545 printer. [title] Wait for the lcd screen of the printer to inform you that an ink cartridge needs to be replaced. [substeps] If you want to replace an ink cartridge before its ink has been fully used up, press " setup, " followed by " maintenance, " then select " ink cartridge replacement.

Ending1: " [title] Insert the new ink cartridge into the blank ink slot on the left side of the printer. [title] Wait for the ink cartridge to charge. Ending2: " [title] Select the " ink cartridge replacement option " on the desktop screen. [step] Your printer options will be displayed on the left column. Ending3: " press the " control " button to select " ink cartridge replacement " from the menu on the left side of the printer screen. Tap the " view " button after the ink cartridge has been replaced. Ending4: " [title] Press " ok, " then select " replace now. [step] " [title] Lift up the scanning unit of the printer.

Answer format: ending1/ending2/ending3/ending4