The student exchanges the black ink cartridge.
text: The ink cartridges are on the drawer, on top of the shelf, so in the container.
text: Yes.
text: You can open this one, and you can remove the black ink, it's the on left, please be careful how you hold it so that didn't fall out.
text: Yes, perfect.
text: You can put it to the side and change it with the other black ink cartridge.
text: Perfect, thank you.