What does "Ink Cartridge Low" notification mean on my printer?

The short answer

Your printer is telling you that one or more ink cartridges are running low and will need to be replaced soon.

What triggers this notification?

Most printers monitor ink levels using sensors or software estimates. When the ink drops below a certain threshold, usually around 10-20% remaining, the printer sends you a warning.

This notification can appear as:

A pop-up on your computer when you try to print
A warning light or icon on the printer’s display panel
An alert from your printer’s companion app

Do you need to replace the cartridge right away?

Not usually. Most printers will continue printing for dozens or even hundreds of pages after the first low ink warning. The notification is an early heads-up, not an emergency.

Here’s what to keep in mind:

You can keep printing until you notice faded text, streaks, or missing colors
Some printers exaggerate how low your ink is to encourage early replacement
Black ink tends to last longer than color cartridges since it’s used more efficiently for text

How to check your actual ink levels

Windows: Go to Settings > Devices > Printers & Scanners, select your printer, and look for ink or supply levels
Mac: Go to System Settings > Printers & Scanners, select your printer, and check options or supply levels
Printer display: Many printers show ink levels directly on their built-in screen

When should you worry?

Print quality drops noticeably with faded, streaky, or incomplete pages
The printer stops printing entirely and displays a “cartridge empty” error
You have an important print job coming up and no spare cartridge on hand

Tips for getting the most out of your ink

Switch to draft mode for everyday printing to use less ink
Print in black and white when you don’t need color
Don’t run cleaning cycles unnecessarily as they waste significant amounts of ink
Buy a replacement cartridge early so you have one ready when you actually need it