Maintenance CartridgeWhen to Replace the Maintenance CartridgeReplace or prepare to replace the Maintenance Cartridge in the following situations.If a message for checking the Maintenance Cartridge is shown onthe Display ScreenWhen the Maintenance Cartridge capacity is low, the Message lamp is lit and Prepare for maint cartreplacement. is displayed. You can continue to print, but check the remaining Maintenance Cartridgecapacity and prepare to replace the Maintenance Cartridge with a new one. (→P.638)When much of the Maintenance Cartridge capacity is depletedPrinthead cleaning, Printhead replacement, and preparations to transfer the printer deplete much of theMaintenance Cartridge capacity. (In particular, preparing to move the printer depletes a lot of the capacity.) Tocheck the remaining Maintenance Cartridge capacity, press the Information button. Replace the MaintenanceCartridge and perform related maintenance as needed.If a message for the Maintenance Cartridge replacement is shown onthe Display ScreenWhen the Maintenance Cartridge is full, the Message lamp ashes and a message to replace the MaintenanceCartridge is shown on the Display Screen. Printing is disabled, and you cannot replace the Printhead ortransfer the printer. Replace the Maintenance Cartridge with a new one.Maintenance 639