Canon S820D Quick Start Manual page 57

Error: Photograph cannot be read from memory card (indicator lamp does not go on)
Cause: Memory card is not set properly.
Memory card was ejected while data was being read.
Memory card that cannot be used was set.
Memory card does not contain readable photographs.
Corrective action:
Insert a memory card deeply that can be used (see page 28).
If a memory card is already set, eject the card, set it again, and check that the indicator lamp goes
on.
Check whether the PC card adapter is ATA-compliant.
Note
If the error is not corrected by the above procedure, turn off the printer, unplug the power
cord, and then turn on the power again.
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