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I have cleaned the print nozzles, attempted auto alignment and then manually aligned the heads multiple times, cleaned the encoder/timing strip and the result is that the printer heads are still not aligned. When printing a single spaced document, ev...

I have a Pixma MG7720 that only lately has not allowed printing from multiple computers unless I stop, then start the print spooler on the computer attempting to print. When this started, I had all the computers connected wirelessly, however, I am no...