A system cleaning also worked for me yesterday after having the same types of symptoms. Afterward I was out of ink and needed to spend $650 but besides that, woo hoo!
To keep the print head unclogged, it's not enough to print the nozzle test pattern regularly?I'm in the same boat with all looking fine except for the MBK, doing a deep cleaning to no avail. I will try a system cleaning tomorrow. I didn't print any...
