Question about Canon PIXMA MP780 All-In-One InkJet Printer
I was in the middle of a print job when I ran out of paper. I pulled the paper try out, turned to get paper, and when I returned to the printer, it was powered down. I did not hit the power button by mistake; I was nowhere near it. When I tried to power it up, nothing. I tried different power source, checked connections, etc. to no avail.
Many times the printhead will stop the printer from powering up. The mistake made here was putting the printhead back in. The printhead overheats and melts the internal parts. Whenever this happens and removing the printhead brings power back, you need to toss the printhead and install a new one.
Posted on Feb 22, 2010
Hunh. Similar problem, though mine wouldn't power up when it had been turned off. I took the above advice and unplugged the printer, waited a few seconds, then pressed the On/Off button, and it's come back on. Thanks!
Posted on Feb 19, 2010
Mine has the same problem. The only difference is it threw a few errors first (weird stuff like improper cartridge, etc.) and I had to unplug/replug in the power to get it to work. Now, nothing at all. Dead. I really liked this unit too! Always used brand new Canon ink. Any ideas?
Posted on Jun 10, 2008
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Posted on Jan 02, 2017
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