Embedded Files
Refill instructions for HP #21 black cartridge C9351AN
Refill instructions for HP #21 black cartridge C9351AN
Drilling to refill ink cartridge:
Drilling to refill ink cartridge:
Drill a hole where the red arrow indicates in the next photo.
Preparation:
Fill the syringe with 5 cc of back ink using a needle to collect the ink
To remove air from the syringe do the following:Place the syringe upwardsand gently squeeze until the ink comes outof the needle.How to recharge ink HP 21:
To remove air from the syringe do the following:Place the syringe upwardsand gently squeeze until the ink comes outof the needle.How to recharge ink HP 21:
For the drilled hole - as shown in first photo, - put the needle to the bottomand inject the ink slowly, gradually removing the needle out.This is to better spread the ink in the sponge interior.
When ink appears at the hole, the cartridge is complete.
Dry and cover the hole with adhesive tape.
Rest:
It is best to rest the cartridge 10 minutes with head down.
Do not rest on an absorbent paper.
This is done in order to distribute the ink evenly over the sponge(Allows ink to flow to the print head).
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