A Simple Hack to Transfer HP 564, 905, 915, 920, 902, 934 and 935 OEM Chip into a Chip-less Cartridge

Many users want to transfer HP's chip to a 3rd party cartridge.  The new HP chips are notoriously hard to remove.  The chip is embedded in the cartridge.  

Traditionally, people remove the chip by heating it up with a heat gun and melt the bonding glue.  However, there are some drawbacks:

1)      Heating the glue may also damage the chip. 

2)      Even if you removed the chip successfully, you would need to buy a chip adapter (aka blocker or holder) to secure it on the new cartridge.  In this video, we tried a cold method. 

3)      The transferred chip may not line up correctly with the printer.

Our goal is to find a safe and easy method for the chip transfer.  We are going to show you how to transfer chips from newer HP cartridges. 

Why do you want to transfer chips?

If you have HP 564, 920, 902, 934 or 935,  you know that after refill the cartridge, the ink monitor will still show old ink level.  You need to keep printing until the printer stops reading the ink level, and then you will be able to print forever.   However, you will not be able to know how much ink in the cartridge.  You need to monitor the print quality and add ink as needed.  We all know that ink tends to run out at the most inconvenient time. 

One solution is to buy a third party cartridge with the see-through casing.  The chips of these cartridges will show a full tank at the beginning.  Then, just like the HP cartridge, will stop reading the ink level after the first tank.  Therefore, your old HP chips are as good as any 3rd party chips. 

Another solution is to buy a blank cartridge at a fraction of the cost and then transfer the HP’s chip over.  BCH sells cartridge casing for about $2-3 a piece, much cheaper than the third party cartridge with chips.

What are the “New Chips”?

HP used to make cartridges like the one on the left.  An Exacto knife can remove it easily.  After many people doing it, HP made these new chips, embedded inside the cartridge.  This tutorial is to show you how to remove these chips.

Procedure

1)      On the bottom of the cartridge, there is a square box, which corresponds to a hole on the printhead assembly.  This box helps the chip to line up with the printer's contact pin. 

2)      Then there is a ridge.  So we want to cut a piece from the end of the cartridge, a little further than the hole but before hitting the ridge.

3)      Use a rotary tool with variable speed.  Keep the speed low so it won't melt the plastic.  Cut through the bottom of the cartridge.  Then grid the excessive plastics and make it as thin as possible.

4)      Insert the chip into the printer.  Make sure the “box” is lined up with the hole.

5)      Now you can put a chip-less cartridge on top of this piece.  Give a little push on the cartridge tab to secure it on the printhead.

6)      Congratulations.  Now you can use any chip-less cartridges on your printer.