Hewlett Packard
 #934 and 935

 

Theory - The ink in these cartridges are retained because
 the cartridges have an internal sponge. (see picture to the right)

1. Put the cartridge on some paper towels in an area
where you can tolerate a spill.

2. With a rubber band tightly put on the orange cap that covered the outlet port.
If you no longer have the orange cap then put on a vinyl glove and put your finger over the outlet port.

This will prevent ink from dripping out while you refill.

3. For the Black 934 cartridge fill the syringe with 30 ml. of black ink.
    For the Color 935 cartridge f
ill the syringe with 8 ml. of the appropriate color of ink.

4. You are going to fill the cartridge through the vent hole. To find the vent hole you can either peel off the top label or rub your finger over the top label to feel the hole. If you can see the impression of the vent hole through the label then just push the needle through the  label into the vent hole and down into the sponge.

5. Very S-L-O-W-L-Y inject ink into the small "vent hole" located on top of the cartridge.

6. After the ink is injected keep the orange cap on or keep your finger over the outlet port for another minute. This will give the ink time to soak up into the sponge.

 7. Now take off the orange cap or remove your finger from the outlet port and place the cartridge in a cup or bowl or anywhere else you can tolerate some dripping. Let any excess ink the sponge can't hold drip for about 2 minutes.

8. Put the cartridge(s) back into the printer and run 1 - 3 cleaning cycles as per printer instructions.
Or print the following pages:
http://www.refillinstructions.com/black.htm  for Black
http://www.refillinstructions.com/color.htm  for Color 

 

   On the 934 and 935 series cartridges, there is an electronic counter embedded in a small computer chip/board. This counter starts at a high number and decreases for every character printed. Eventually, the counter reaches zero. At this point, an error message is generated by the printer. If you click "OK" to the error message, the printer will continue to print. However, the ink level display will not show correctly with that cartridge. 
   On some HP printers, simply click through the error message and the various warnings. The printer should then print fine. Notice that you will need to do this again when the other cartridges run out of ink.
   On other HP printers, hold the RESUME or RESET button for about 10-15 seconds. This should reset the printer so that it will print with the refilled cartridge.


Another alternative method

Instructions

Step 1) Put the cartridges on some paper towels in an area where you can tolerate a spill.

Step 2) Turn the cartridge up side down so that the outlet port of the cartridge is facing upward.

Step 3) Fill the syringe with the appropriate color of ink
 
 Step 4) Drip ink onto the felt pad in the outlet port. The felt pad will quickly absorb the ink into the cartridge. If the felt pad will not soak up any more ink and the ink just sits on top or you see some ink coming out of the vent hole located on the opposite side then the sponge is full. Dab a paper towel onto the felt pad to soak up any ink that did not get absorbed into the cartridge.
It goes without saying that you want to put the correct color into the correct chamber. Don't drip yellow ink onto the cyan felt pad and wonder why you are now getting green.
Note: Do not pierce the felt pad with the needle of the syringe.

Step 5) Replace the cartridge and run 1 - 3 cleaning cycles as per printer instructions.
Or print the following pages:
http://www.refillinstructions.com/black.htm for Black
http://www.refillinstructions.com/color.htm for Color 
If necessary leave cartridge in printer for up to 4 hours to allow the ink to saturate the entire sponge.


A Refill Kit should include Ink plus the following:
3- 10cc Syringes with sharp needles for Color
1 - 30cc Syringe with sharp needle for Black
Quality Inks for your Printer
www.PrinterFillingStation.com
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