Question about Lexmark X3480 All-In-One Printer

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Printer says inner cover 1 is open, but it is not open,

Canon mp780

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Usually a piece of plastic from the cover turn a switch on and off. Maybe is this bit broken.
if not, unplug the printer for several hours,
take off paper and cartridge and choke the printer a little bit maybe is the switch stuck due to spread ink or dust or something else.
If still stuck, open it and find those switch, try to play with it power on. Nothing happen? change the printer ...:(

Posted on Dec 24, 2008


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Here are few steps on "HOW TO INSTALL THE PRINTER" mp780

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2. Use the << / >> button on the printer to select the machine languange will be use.

3. If the printer display prompted you to "Install Cartridge". This means that the printer has no cartridge installed and you may need to do it manually. Go to Steps 4-A for the guidance.

4A. Press the Open Button to open the Paper Output Tray of the Printer. Then lift the Scanning unit unitl it locks into place.

5. Open the two inner cover inside the printer.
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Try a hard reset first: Unplug the printer from power source and PC, wait about 5 minutes and replug. Should the issue recur, then the cover sensor is probably faulty. That is the reason you are getting this error repeatedly. The only solution is to send the printer in for servicing and get the sensor repaired/replaced.

In any case, here are the steps to close the inner cover:

1. Press the Open Button (1) to open the Paper Output Tray (2).
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3. Close the Inner Cover

4. Now close the Scanning Unit.

You can also try reinstalling the printer software along with any patches, updates, etc from the Canon website. Make sure you uninstall the existing software first though..

If neither works, then its time to take the printer in for servicing. You could try to contact them by phone first:
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  • The location of the ASF nearest you for carry-in service at 1-800-828-4040
  • Toll-free TDD Support Line for the Hearing Impaired Monday - Saturday (excluding holidays) at 1-866-251-3752
  • Technical Support for Customers in Canada at 1-800-OK-CANON
Hope that helps!

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