Using Cleaning Fluid to clean the printhead on your cartridge
A lot of Canon, Lexmark, Dell & HP printers use cartridges that have the printhead on the cartridge. This means that if your printer starts printing poorly then you may be able to recover the situation by cleaning the printhead. You can do this using the cleaning flush and some kitchen paper

I generally suggest that people clean their cartridge like this first, and then if they need to, soak the bottom of the cartridge in the cleaning solution. This should help to remove any blockages.
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