36 Routine Maintenance Replacing FINE CartridgesWhen FINE Cartridges run out of ink, replace them using the following steps.ImportantHandling FINE Cartridgesz Do not touch the electrical contacts or Print Head Nozzles on a FINE Cartridge. The machinemay not print out properly if you touch it.(A) Electrical Contacts(B) Print Head Nozzlesz To maintain optimal printing quality, we recommend the use of specified Canon brand FINECartridges.Refilling ink is not recommended.z Once you remove a FINE Cartridge, replace it immediately. Do not leave the machine with FINECartridges removed.z Replace empty cartridges with new ones. If you insert FINE Cartridges that has been removedonce, the machine may not print out properly due to some reasons such as clogging of thenozzles.Furthermore, with such cartridges, the Low Ink Warning may not be displayed properly.z Once a FINE Cartridge has been installed, do not remove it from the machine and leave it out inthe open. This will cause the FINE Cartridge to dry out, and the machine may not operateproperly when it is reinstalled. To maintain optimal printing quality, use a FINE Cartridge withinsix months of first use.Notez If a FINE Cartridge runs out of ink, you can print with either Color or Black FINE Cartridge, inwhichever ink remains, only for a while. However the print quality may be reduced compared towhen printing with both cartridges. Canon recommends to use new FINE cartridges in order toobtain optimum qualities.Even when printing with one ink only, print with leaving the empty FINE Cartridge installed. Ifeither of the Color FINE Cartridge or Black FINE Cartridge is not installed, an error occurs andthe machine cannot print.For information on how to configure this setting, refer to the PC Printing Guide on-screenmanual.z Color ink may be consumed even when printing a black-and-white document or when black-andwhite printing is specified.Color ink is also consumed in Print Head Cleaning and Print Head Deep Cleaning, which maybe necessary to maintain the machine’s performance.(A)(B)