Weight of an original HP300 and / or HP300XL inkjet cartridges

[Bartosz]

Hi,

I recently bought refilled HP300XL inkjet cartridges. They work but I doubt they have the advertised amount of ink in them. I weighted them and they are only approx. 10g heavier than supposedly empty cartridges of the same type that I already had.

The problem is, I'm actually not sure if the "empty" cartridges that I used as a reference are really empty or just dried/damaged/not working because of some other reason.

Can you guys tell me what is the weight of a new or empty (preferably new) HP300 or HP300XL cartridge (color and black types)?

The seller advertised that he refills the cartridges with 20 (black)/24 (color) ml of ink, but it seems they have only around 10ml in them.

Thanks for any info!
Bartosz

 

[PeterBJ]

It is difficult to find the capacities in ml or gram for HP300(XL) cartridges. HP doesn't state them, but instead states a number of pages printed using some standard document.

I found some capacities from an ink vendor's site. I think these figures are fairly accurate. Here they are for the HP300 black, the HP300XL black, the HP300 tri-colour, and the HP300XL tri-colour.

The capacities are nominal, meaning the amount of ink filled into the cartridges at the production. You cannot drain the cartridges completely, so maybe around 1 ml or gram will be left in the used cartridges. So I think your findings of around 10 ml usable capacity for the XL cartridges match the stated figures perfectly.

When refilling, you might be able to fill a few ml extra in the XL cartridges without the cartridges overflowing or leaking, but I don't believe that almost twice the nominal amount of ink can be filled into one of these cartridges without ill effect.