HP 2000C, 2500C & CAD refilling instructions
Please note: This is not an HP approved procedure. Do not put anything other than our recommended ink into the cartridges. We will refund what you paid for the refill kit and ink if you are not totally satisfied. This procedure is new and is subject to change without notice. It is intended for use by the printer owner.
C4841A, C4842A, C4843A, C4844A REFILL INSTRUCTIONS
Step 1:
Cut the label that holds the End Cap in place, see photo.
Use a utility knife to cut label. Be careful not to go too deep. Go deep enough just to cut label. Cut the label on both sides of the cartridge.
Step 2:
Remove the End Cap, see photo.
Gently pull on the cap and it will separate from the plastic housing.
Step 3:
Make extraction tool, see photo.
A pair of needle nose pliers or flat nosed pliers will do this job nicely. Bend about 3/32 of an inch 90 degrees. If the bent part is too short or too long, it won't work as well.
Step 4:
Remove rubber plug from fill spout, see photo.
Start pin into plug with pin horizontal. As you get the tip started into the plug, straighten the pin so it is vertical. Make sure the tip of the pin is firmly inserted into the plug. Then, gently pull on the pin and the plug will come out. Try not to damage the plug too much, it has to go back in place and still seal.
The hole you are opening by removing this plug is where the ink goes in. Don't do anything with the stack (tube sticking up with a metal cap on it) on the opposite end. This is the printer interface valve. Leave it alone.
Step 5:
Fill the foil bag with ink.
Using the syringe, attach the needle and load 12 cc of ink into the syringe.
Before injecting the ink, make sure the foil bag inside the cartridge is not collapsed. You can blow into it using a large diameter straw or a piece of 3/8" ID tubing. If the bag is collapsed, you won't be able to put the full amount of ink in it.
Slowly inject the ink into the cartridge through the hole opened when the rubber plug was removed in Step Four. Insert the needle just far enough to get the ink in the foil bag. If you go too far with the needle may damage the foil bag. The cartridge, if it was empty, will take one ounce of ink, or about 30 cc total. Don't over fill or it will make a mess. Also, don't shoot the ink in fast, it will make foam. Foam is undesirable.
You do not have to remove the foil bag from the plastic housing to do the filling. But if you do, be sure to put it back in correctly. The stack or printer interface valve goes opposite the arrow on the top of the cartridge.
Step 6:
Clean the rubber plug and install it back into the hole it came out of. It doesn't take a lot of force, so be careful not to push it all the way into the foil bag. It will sort of snap or pop in place. Use a retracted ball point pen or similar device. It has to seal air tight, so make sure it is in place properly.
Next, reattach the End Cap and secure it in place with some scotch tape. Put the tape only where the label was cut in Step One.
Done !! Reinstall the cartridge and run a couple of cleaning cycles.
For extra syringes, needles or other tools please see our accessories page.
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