Ricoh A151 Operating Instructions Manual page 82

OPTIONAL DOCUMENT FEEDER
Regarding originals that the optional document feeder can handle, see page 54.
Note: The following types of originals are not recommended for use with the
document feeder. Place them directly on the exposure glass.
Originals larger than A3, 11" x 17"
Originals smaller than B5 , 5 " x 8 "
1/2 1/2
Originals thicker than 105 g/m 2 , 28 lb
Originals thinner than 52 g/m 2 , 14 lb
Folded, curled, creased, or damaged originals
Paper with any kind of coating (such as carbon paper) on the back, or originals
that are taped together
Mailing labels, perforated originals, or pasted originals
Bound, stapled, or clipped originals
OHP transparencies or translucent paper
Wavy originals
Damp originals
Sticky originals
Originals written in pencil on both sides, or 2 sided carbon copies
Originals that are not made of paper