Cartridges

My printer is very low on all four ink cartridges, and the quality of the printing is poor.

Source: tatoeba (3123991)

"Have you any arms?" "I have my old service revolver and a few cartridges."

Source: tatoeba (6309894)

I have always held, too, that pistol practice should be distinctly an open-air pastime; and when Holmes, in one of his queer humours, would sit in an arm-chair with his hair-trigger and a hundred Boxer cartridges, and proceed to adorn the opposite wall with a patriotic V. R. done in bullet-pocks, I felt strongly that neither the atmosphere nor the appearance of our room was improved by it.

Source: tatoeba (6981848)

The cartridges are easy to refill.

Source: tatoeba (10851135)