Refilling causes a lot of stress on the cartridge. The best we can do for the refillers is eliminate the factors that may affect the lifespan. You cannot tell them apart, except XL versions are better quality and have more chance of being the "good ones." With that said, it seems HP is making less durable cartridges to solve this "problem." For example, HP 67 cartridges are a mixture of ones that can only print 200 pages (random E1 or E0 error after 100 pages) and ones that can print 1,000 pages. Therefore, you can push an integrated cartridge to 10 times of it's suggested page number. In my experience, a Canon 245 cartridge (100-page limit) can easily print 1,000 pages, and a Canon 246 cartridge can push to the upper 4,000 pages. For example, an HP engineer disclosed that they created a 1000 ml lifespan for HP 45 cartridges, which only have 45 ml of ink in them. However, the durability of these printheads may surprise you. HP integrated cartridges (61, 62, 63, 64, 65, 67) are made for one-time use, making their designed life shorter than permanent printheads. Is there a way to make HP cartridges last longer? For example, HP listed 61 color to be 4.0 ml, then the top color can take 4.0 / (1+1+1.2) * 1.2 = 1.5 ml. ** For tri-color cartridges, there is a color on the top and two colors at the bottom. Regular HP 65 Black's published value is 2.5 ml, so we suggest to refill 3-4 ml. For example, HP 65 Black XL's published value is 7.5 ml, and we suggest to refill 9-12 ml of ink. * We suggest to refill 120-150% of the published volume.
HP DESKJET 1000 CARTRIDGE REFILL SERIES
HP AMP 100 Series, HP DeskJet 2600, 3700 Series, HP ENVY 5000 Series | T0A36AN HP ENVY Inspire 7950e ENVY Photo 6200, 7100, 7800 Tango Serie Here I listed the published ink volume and suggested refill volumes. Therefore, if you want to enlarge the sponge, you have to remove some walls. Also, HP built inner walls to limit the size of the sponge. So HP began use smaller sponges for non-XL and larger sponges for XL. However, HP found that consumers can fill up the regular cartridges and use them as XL. In the old days, HP made the same-sized sponge for the XL and non-XL, and just add different amount of ink.