If ink is low, the 
error and 
ink lights flash. You can continue printing until the cartridge needs replacement.
error and ink lights flash. You can continue printing until the cartridge needs replacement.If a cartridge is expended, the 
error and 
ink lights stay on. You must replace the cartridge to be able to print.
error and ink lights stay on. You must replace the cartridge to be able to print.
Note:
You cannot print when any ink cartridge is expended even if the other cartridges are not expended. Replace any expended cartridges before printing.
For best printing results, use up a cartridge within six months of opening the package. When an installed ink cartridge is more than six months old, you may need to replace it if your printouts do not look their best, even after cleaning and aligning the print head.
You cannot print when any ink cartridge is expended even if the other cartridges are not expended. Replace any expended cartridges before printing.
For best printing results, use up a cartridge within six months of opening the package. When an installed ink cartridge is more than six months old, you may need to replace it if your printouts do not look their best, even after cleaning and aligning the print head.