(2) Press on the ~us~ mark on the ink tank untilthe ink tank snaps firmly into place.(3) Make sure that the ink lamp lights up red.~ ImportantThe machine cannot be used unless all the ink tanksare installed.6 Lift the Scanning Unit (Printer Cover) slightly to set the Scanning Unit Support backto its original position, and then gently close the Scanning Unit (Printer Cover).A Caution• Be sure to hold the Scanning Unit (Printer Cover) firmly using both hands, and be careful not toget your fingers caught.• Do not hold the LCD.W Note• If the error message is still displayed after the Scanning Unit (Printer Cover) is closed, see "AnError Message Is Displayed on the LCD" on page 101.• When you start printing after replacing the ink tank, Print Head Cleaning is performedautomatically. Do not perform any other operations until Print Head Cleaning finishes.NoteIf you have pressed the Stop/Reset button for at least 5 seconds when "The remaining level of theink cannot be correctly detected." or "The ink has run out. Replace the ink tank." appears on theLCD, note the following .• When ink runs out, printouts will become faint or blank printouts will be printed.• When receiving faxes, the machine will not store it in its memory even if the ink level becomes lowor run out.84 Routine Maintenance(2) Press on the ~us~ mark on the ink tank untilthe ink tank snaps firmly into place.(3) Make sure that the ink lamp lights up red.~ ImportantThe machine cannot be used unless all the ink tanksare installed.6 Lift the Scanning Unit (Printer Cover) slightly to set the Scanning Unit Support backto its original position, and then gently close the Scanning Unit (Printer Cover).A Caution• Be sure to hold the Scanning Unit (Printer Cover) firmly using both hands, and be careful not toget your fingers caught.• Do not hold the LCD.W Note• If the error message is still displayed after the Scanning Unit (Printer Cover) is closed, see "AnError Message Is Displayed on the LCD" on page 101.• When you start printing after replacing the ink tank, Print Head Cleaning is performedautomatically. Do not perform any other operations until Print Head Cleaning finishes.NoteIf you have pressed the Stop/Reset button for at least 5 seconds when "The remaining level of theink cannot be correctly detected." or "The ink has run out. Replace the ink tank." appears on theLCD, note the following .• When ink runs out, printouts will become faint or blank printouts will be printed.• When receiving faxes, the machine will not store it in its memory even if the ink level becomes lowor run out.84 Routine Maintenance