Is the original too small?
The minimum size that the flatbed scanner supports is 25 by 25 mm (1 by 1 inches). The
minimum size that the automatic document feeder (ADF) input tray supports is 127 by 127 mm
(5 by 5 inches). The original might be jammed. See
Media jams occur in the automatic
document feeder (ADF)
for instructions.