Hello, recently our printer ran out of black ink and we replaced the cartridge. Now no black ink will come out at all. I have tried several different new cartridges. Same result. The color cartridge is low, but still works. If I do a nozzle check, all the colors show up, but no black. I have tried a several cleanings and a deep cleaning of the black head. Nozzle check also prints only colors and no black.