Review on Inkjet MFP HP Smart Tank 615, color, A4, black by Wiktor Wojciechowski ᠌

Some pros: Prints fast. Convenient large display. The ink in the kit will last a long time. The software is user-friendly and intuitive. Some cons: Periodically asks to remove and insert the black cartridge again. In fact, this is not necessary, just open and close the lid with cartridges, and the glitch goes away.