For many HP models, you must enlarge the air holes on existing cartridges using a drill bit provided in the kit. If the cartridges are new, remove the protective seals; if they are used, ensure they are fully refilled and functioning properly.
If not used regularly (at least once a week), ink can dry in the tubes or printhead. instruktsii po ustanovke snpch hp
Initial setup can be messy and requires a steady hand for drilling or routing hoses. For many HP models, you must enlarge the
Visual tanks allow you to see exactly how much ink is left. For many HP models