My MX922 has worked fine for a few years. It recently started spitting out blank sheets fo paper when print jobs are sent from either of the two different computers ( both Windows 10) on the network, one connected to the printer by USB and the other wirelessly. Copier printing in black does not work either. The ink cartidges have been checked for ink supply and they are fine. Test pages all print fine.
When you send a print job or copy a page, regardless of how much text is on a page, the printer spits out a completely blank page whithout the slightest hesitation at any point. You cannot hear the print head move at all.
I've been using the pattern print test page to keep the system "wet" between uses. When printing a test page does it also use (test) the pigment based ink as well as the dye based ink? If the pigment based ink supply is not used in the test, could it be drying out between uses?
In all cases, printing or copying, how can I print text (documents) again?