Here is a strange one. I just installed a new print cartridge in my HP 1050. It will not print a test page,in settings It says online and ready,the ink level shows full,nothing in the queu even ran the HP diagnostic and am told no problems. Now after all this the printer does go through the process of printing a test page but only blank pages come out when I try to print anything now errors messages either.. This makes no sense. I have never ran across a situation like this in my 20 years with a computer. Can somebody come up with something else to try?