New printer HP Envy Inspire 7920e (ink cartridge, colour) put into operation. Everything is OK, except that it does not print blue. Nothing appears on the print quality diagnostics for cyan and light cyan, normal colours for magenta, yellow and black. Ran printer alignment and cartridge cleaning, no improvement. Could the colour cartridge be defective or half dried out? Or the electronics of the cartridge or the cassette where the cartridge is inserted defective? Anyone got any ideas? Otherwise, Digitec must at least deliver a new ink cartridge so that I can see if it is the cartridge or the electronics.