Installing 7900 drivers on a new computer today and noticed new firmware released a couple of weeks ago for the 79/9900 printers available on EpsonUSA site. I haven't noticed this mentioned in a thread ... if it was my apologies.
Doesn't sound like much ...
Firmware version HN00904010 release notes:
Resolves front panel paper selections that were not stored after printer restart.
7) Ensures proper print head initialization (vibration) prior to start of print.
Curious about #7 and what vibrating the head is designed for (maybe to help with clogs?)