My Pixma MG8220 is working well if I print simple doc from word or other app (using 12.04 64bit). If I paste photo into word doc it prints it with no problems. However if I try to print same photo from gimp or directly from its location (from file manager) it wakes up printer, it looks like is preparing to print but nothing is coming out. Then printer simply "pretends" that everything went well (no error messages) and goes to standby mode after usual time.
Does anyone experience similar behavior? What could be a problem, any ideas?