Ricoh Aficio 551 Copy Reference Manual page 55

Thin mode
Use Thin mode if the scanned image is distorted at the edges when copying thin
2
(52g/m , 14 lb. Bond or lighter) originals.
Important
Set to Thin mode when you place thin paper into the document feeder, other-
wise your originals might be damaged.
A
Press the [Special Original] key.
B
Press the [Thin] key.
C
Press the [OK] key.
Setting Originals
2
39