German third-party ink manufacturer OCP has announced the availability of inks for three HP OfficeJet Pro A4 inkjet all-in-one models: the OfficeJet Pro 6950, 6960, and 6970. OCP says its new inks are compatible with HP’s 903/903XL series of cartridges, which are sold in Europe, as well as the HP 902/902XL series in the United
