Hello Andrei,
I see no one has responded to this post yet. So, at this point I would recommend contacting your local Xerox Support Department to speak with a Product Specialist for more assistance. Please call 1-800-821-2797 or 1-800-835-6100.
printer is connected to wifi network. After entering power save mode it loses connection, blue button doesnt flash. Only manual switch off/on power helps