I have a HP Photosmart 6520 and black even it indicates cartridge is full doesn’t print Errorsdoc » Questions » I have a HP Photosmart 6520 and black even it indicates cartridge is full doesn’t print 1.73K viewsAugust 17, 2018 0 alex (anonymous) August 17, 2018 0 Comments I have a HP Photosmart 6520 and black even it indicates cartridge is full doesn’t print venmartin Changed status to publish August 17, 2018 Add a Comment 0 Answers ActiveVotedNewestOldest Write your answer. Register or Login