You can get the refill instructions in pdf form by clicking on your cartridge type below
Note: Sometimes browsers can have problems opening pdf's direct from a download. If you run into any problems the Right-Click on the image and select Save Target As and save it to your desktop. You will then be able to open the file from there.
You will also need to reset the cartridges to show the actual level once you have refilled those cartridges.
You can refer to the article :
This worked like a dream even on HP21 and HP22 cartridges.
It is simple and takes just a few minutes to reset them. Arun Sista [2009-11-15]
HP74 & HP75
These carts are the same as the HP350 and HP351 so just use those instructions. Russell [2009-11-12]
HP74 & 75 missing
How do I refill HP 74 & 75 for a HP Photosmart C4240?
Thanks! 1newlove [2009-10-30]
Instructions to fill HP300 colour cartridge.
Need instructions to fill HP300 colour cartridge. Thanks David Howse [2009-09-11]
HP 45 linked to incorrect pdf - please resolve. bikeman [2009-09-02]
How to fill HP300
Need instructions to fill HP300 black cartridge. Thanks Miller [2009-07-12]
how to refill
how to refill HP 5500 PS Desigenjet .
Cartridge no 81 (C4935A) MOhamed Sharaf [2009-06-09]