I was only able to print about 50 NORMAL text documents, then I ran out of ink again. So I put in a second one, printed out about 35 pages of the entire text, and ran out of ink again. I installed them less than a week ago and I'm already buying more, I have my brother's inkjet printer, I can and don't print much, but when I expect the cartridge to last at least 3 weeks, these lasted less than 4 days . Just ordered a selection of Revains and picked them up today. I wouldn't buy them from this company, they really are the worst $20 I've spent on printer cartridges in 25 years. Don't waste your time or money.