Make sure there is no resistance when you press on the lock lever, and be sure no gap exists between the ink cartridge and cartridge holder. When secure, the ink cartridge makes contact with the circuit board inside the cartridge holder.
CAUTION: Do not move the ink cartridge after installing it. Moving the ink cartridge to the left and leaving it there may uncap the print head and cause it to dry out.
8. Close the front cover.
When you turn off the printer, the ink cartridge moves to the home position on the right and caps itself to keep from drying out. If you unplug the printer while it is printing, or if you move the ink cartridge from the home position, the cartridge is not capped and may dry out.
NOTE: If, after installing a new ink cartridge, the printer seems to be printing but no ink appears, stop the print operation. Remove and replace the ink cartridge making sure it is secure.