HP Designjet T120

• The ink cartridge is very low and you want to replace it with a full cartridge for unattended printing (you can use up the remaining ink in the first cartridge at a more convenient time).
• The ink cartridge is empty or faulty, and you must replace it to continue printing.

  CAUTION: 

Do not try to remove an ink cartridge while printing.

  CAUTION: 

Remove an ink cartridge only if you are ready to insert another one.

NOTE: 

When a cartridge runs out of ink, the current job is cancelled.

1. Make sure the printer is turned on.
2. If your printer is on a stand, make sure the printer wheels are locked (the brake lever is pressed down) to prevent the printer from moving.
3. Open the ink cartridge cover on the left-hand side of the printer.
   
4. Wait until the carriage stops moving.
5. Press the ink cartridge to unlock it.
   
6. Remove the ink cartridge.
   
7. Insert the new ink cartridge. Make sure that you insert the ink cartridge into the slot that has the same colored letter as the cartridge you are installing.
   
8. Close the ink cartridge cover.