Canon PGI-525BK black cartridge for Canon Pixma. Just as the message "ink all" appeared. Came even the DHL messenger brought the new cartridges. And used immediately and without jamming continued the printing and Scannerei. The print quality is convincingly well. The other colors do not come so often used. But the printed image with these original cartridges is optimal and we will order again and again supplies at Amazon, most, if these things are also still available! Your M. Knoll