The following types of originals should be mounted on the carrier sheet. You should also use the carrier sheet for important originals and for originals you will scan repeatedly.
Stacked originals
Originals with fold lines
Wrinkled or torn originals
Waved originals
Punched originals
Originals with adhesive tape, glue or paste stuck to them
Pasted originals
Originals with a damaged leading edge
Originals with surfaces that attach to glass easily such as photographs
Originals drawn in pencil
Originals whose thickness is 0.070 mm (0.003 inches) or less
For details about how to scan an original using a carrier sheet, see Scanning an original using a carrier sheet.