FUJITSU fi-4750L - Manual (Page 22)

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Alarm
One of the following messages is displayed if an error occurs in the scanner. If one of the following
error messages is displayed, turn the power Off and then On again. If the same message is displayed,
contact your service representative.
<Optical alarm front>
<Optical alarm back>
<FB mechanism alarm>
NOTICE
When the total number of sheets scanned by the ADF is less than 100, the message above and the
message below are displayed alternately. Remove the bracket (Shipping Lock) that holds the carrier
in place.
<Motor fuse alarm>
<Lamp fuse alarm>