How do I fix error code 5C10, Alarm light blinks for Canon MP830 All in One InkJet Printer?

Try these step
First, make sure there is
no paper jam anywhere in the machine.. look inside, rear, where the
paper tray (output) is, etc to see if you find any shreds or torn paper
that may have gotten stuck and you didn't see.



Double check that your ink tanks are seated right too



Also, be sure that your scanner is UNLOCKED...
With the machine turned OFF:
Open
the document cover, look on the tray where the glass is -- and then
look to the LEFT side of the glass and you will see pictures of an
opened lock and a closed lock and a little switch...
Make sure the switch is next to the UNLOCKED position.
WAIT 5 seconds or so and then turn the unit back on.



If you STILL have the error code, try these two types of resets:



To clear the memory:



On the operator panel, press and hold the <ON/OFF> button for one second. (The display will go blank.)



Wait approximately ten seconds and then press the <ON/OFF> button again.



Wait until the device has completed its cycling process before submitting another job request.To do a stop/reset:



To clear error messages displayed on the LCD or if the printer is
not functioning as expected, it may be necessary to simultaneously
press Stop/Reset and ON/OFF buttons.



With the printer powered on, PRESS AND HOLD DOWN the <Stop/Reset> button then press the ON/OFF button.



Once the printer is powered off, hold down <Stop/Reset> and then press <ON/OFF>.If none of the above clears it up, you may have to have the machine serviced.. check to see if you are still under warranty.