Canon printer shows please check the ink, black 1688, yellow light, unable to print, how to solve it?

Usually the condition of the ink cartridge. You can clean the ink head or add ink.

This situation is usually caused by ink cartridges. We can choose to check the ink cartridges. If there is no ink in it, then we can add some ink to it.

In addition, it is also possible that the ink head of the ink cartridge is blocked. At this time, we can choose to clean it up and reuse it, so that we can continue printing.

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