Operational Ease ink tools for HP 28/27/56/57 ink cartridge 1.Insert Inkjet Cartridge 2.Refilling Ink Operational Ease ink tools for HP 28/27/56/57 ink cartridgeTo solve the following problem the original ink cartridge caused:1.expensive and complex manual operation2. waste of ink,3.easy to damage the overall structure of the ink cartridge 

Insert Inkjet Cartridge

Insert the nozzle part of the cartridge into the refill clip and push the top of the cartridge all the way in until you hear it “clicking” into placeAfter turning the refill clip upside down, remove the black film at the bottom of the cartridge, in front of the nozzlePush the metal ball inside, opening an ink injection inlet.

Refilling Ink

Connect the ink container/syringe to the ink injection inlet.While keeping the refill clip upside down, inject appropriate volume of ink by squeezing and releasing the ink container/syringe slowly.Warning: The ink volume specified above is for a completely empty cartridge.

Stabilize Internal Pressure

Fill the syringe with about 2ml of external air,and insert the syringe into the air inkjection hole.Hold the syringe pressed and wait for 5 secondsRemove the cartridge from the refill clip and clean the excessive ink around the nozzle, dabbing the nozzle part on soft tissueInstall the cartridge into the printer, and run “head cleaning” process before use 

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Operational Ease ink tools for HP 28/27/56/57 ink cartridge