A:AnswerEach standard capacity HP 61 Black ink cartridge contains approximately 3 ml of ink and yields about 170 pages, while the standard capacity HP 61 Tri-color ink cartridge also contains approximately 3 ml of ink and yields about 150 pages. The exact amount of ink can vary, so the page yield is a more reliable indicator of the cartridge's capacity.
A:AnswerNo, the 61 inks are not discontinued. This link will take you to the available 61 ink options.
https://www.bestbuy.com/site/searchpage.jsp?st=hp+61&_dyncharset=UTF-8&_dynSessConf=&id=pcat17071&type=page&sc=Global&cp=1&nrp=&sp=&qp=&list=n&af=true&iht=y&usc=All+Categories&ks=960&keys=keys