Is that cartridge REALLY empty?
We often have people thinking they need to replace a cartridge when it isn't really empty.
Why? Because the printer or its software told them it was! Many of these so-called "empty" cartridges - both ink and laser toner - had as much as 20% left.
If your printer tells you the cartridge is empty, wait until the print on a page begins to look faint before replacing the cartridge. It won't hurt your printer and it will save you a lot of money in needlessly replaced cartridges!
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