how to refill computer printer cartridges
With the ink syringe, load the colour you are looking to refill into your cartridge. It is advisable to do so over a basin or sink to avoid mess and damage to interiors.  Pierce a hole in the top of the cartridge above each chamber and slowly begin to insert the ink, to avoid foaming and frothing which can hinder print quality.  After replacing the cartridge, clean the printer heads several times to avoid any excess ink on the head which could affect quality.  If your printer contains a memory chip, which records the amount of ink remaining in the cartridge, and the number of times it has been used, it is important to reset that with a special resetting tool prior to refill to avoid any mechanical confusion. 

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