Try deleting the printer from the computer, then download the drivers again. We had a similar problem with a MG6250, 2 computers were able to print, one wasn't after a power loss. Tried system restore, but didn't help, tho it looked like a computer f...
We had similar problems after a power loss. After reading this forum, we were at a loss as what to do. 2 out of 3 computers worked OK, the Acer Ferrari was fine, but wouldn't print (printer off-line message). Eventually we deleted the printer from W7...
We had a 2hour power outage yesterday. Today one of our 3 computers would not print, though connecting to the internet OK. Just as your own diagnosis, so was ours. We tried many of the solutions here, but the really only simple way was to delete the ...