HP's specification for the XL cartridge is 480 pages. Our refillable sponge cartridge printed 269 pages, which is equivalent to 511 ISO pages. We made a refillable sponge cartridge by cutting open the cartridge and replaced the small sponge with a bigger one. Therefore, if we refilled a regular cartridge, the cartridge's page yield was similar to a new cartridge.įor the second experiment, we did some surgery. When we checked the HP's specification, a regular HP 63 cartridge was expected to yield 165 to 190 ISO pages. We printed 97 pages, which is equivalent to about 185 ISO pages. For example, if our cartridge prints 100 pages, then it can print 190 HP test pages, which is based on the ISO test.įor the first method, we will refilled a regular HP (non-XL) cartridge. BCH developed its test page, and each page's ink consumption is about 1.9 ISO per page. If you've seen this test page, it simulates a regular document and thus doesn't use much ink. The HP number is based on a test page called ISO IEC 24712 2007 test page. You might have seen that HP says how many pages a cartridge can print. Today, we are going to explain how we tested how many pages each method can print after each refill.īefore we get into detail, we have to mention that we used the BCH test page. In a few previous videos, we showed how to refill the original HP cartridge, as well as how to make a sponge and a spongeless refillable cartridge.

Hp printer ink test page