Question about Canon PIXMA MG5420 Inkjet Photo All-in-One
Posted by Anonymous on
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Posted on Jan 02, 2017
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).
2. Raise the Scanning Unit until it stops.
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:
Posted on Jul 03, 2008
If the 6 flashes are accompanied by an on screen message #5400, this is a "Service Call Error" code.
This code indicates the following;
Internal temperature error 
The solution to this is the following part replacementl
- Logic board ***'y (QM2-1548) *1
*1: Before replacement of the logic board ***'y, check the waste ink amount (by service test print or EEPROM information print). If the waste ink amount is 7% or
more, also replace the bottom case unit (QM2-1205) or the ink absorbers (QC1-4222 / 4223 / 4224 / 4263 / 4264 / 4864 / 4221 / 4257) when replacing the
logic board ***'y.
[See Section 3-3. Adjustment / Settings, (6) Service mode, for details.]
Posted on Oct 02, 2009
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