10 Replacing toner cartridges and staples and emptying punch scrap box10-12 CS240/CS23110.3 Replacing an imaging unitWhen it is almost time to replace an imaging unit, an advanced warning message similar to the one shownbelow appears (when performed by the user).2 NoteWhen the message appears, prepare to replace the imaging unit according to your maintenanceagreement.When the time to replace the imaging unit is reached, an advanced warning message similar to the one shownbelow appears.2 NoteWhen the message appears, replace the imaging unit according to your maintenance agreement.If it is time to replace an imaging unit other than the black imaging unit, printing can continue in black.Touch [Continue Operation], and then select the job to be printed.!DetailFor details on replacing the imaging unit, refer to "To replace the imaging unit (black)" on page 10-14.