I emailed Canon tech support today and got this reply:
Good morning and thank you for contacting Canon product support. I understand your PIXMA MX892 is having an issue powering on. I will be more than happy to help.
I have listed a few steps and check points below we can try to resolve this issue. Please complete the following steps:
1. Make sure the power cord is securely seated in the printer and the wall outlet.
2. If you have the printer connected in a surge protector, try connecting the power cord straight to a wall jack.
3. Try to disconnect all connections from the printer for five to ten minutes. Right after all connections are disconnected, press the power button five times to release any electrical charge the printer may be holding. After five to ten minutes, reconnect the printer to power, and attempt to power the printer on once more.
4. Try to connect the printer to a different well known working power outlet.
5. Try a spare power cord, perhaps from a different device in your home with the same kind of power cord.
If the issue persists after these troubleshooting steps, the unit is exhibiting symptoms that will require service.
Repair service is no longer available for this product. However, in appreciation of your continued loyalty, we understand your need for a working printer, and would like to offer you our Canon Loyalty Program.
Canon's Loyalty Program is for out of warranty units which have been diagnosed to require service, or for some reason are incompatible with a new or upgraded system. This option allows you a one-time opportunity to purchase a replacement product, discounted from the list price, and with free FedEx Ground shipping. If you would like to take part in this option, please call our Sales Department at (866) 443-8002 seven days a week, 8am to Midnight. Let them know you have been working with email technical support and the Canon Loyalty Program was offered.
