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My flash won't fire when the shutter is activated in any mode. It DOES fire when I press the red button. I've also tried all the modes on the flash, I usually use ETTL.  Any suggestions?  Thanks in advance.
I've had this printer/scanner for years.  Could, until recently, both print and scan. The scanner worked a week ago. A week later scanner only sees a USB connection, it lost the WiFi settings and it won't take them to re-enter. . But I can still prin...