Ricoh Aficio 551 Copy Reference Manual page 215

The relationship between the direction in which you set the original and the
Page Numbering orientation/position is as follows:
You can change the stamp position to top, bottom, left and right each way in
1mm, 0.1" steps. See "Position Priority" in
If you combine this function with the Duplex (Top to Top) function and select
the "P1, P2" or "1/n, 2/n" style, the page numbers on the back of the copy
paper are printed as follows.
1
1.
Front
2.
Back
If you combine this function with the Duplex (Top to Top) function, you can
change the setting to stamp on the back side in the same position as the front
side. See "Duplex Back Page Number Position" in
If you use this function with the Combine, Magazine, or Booklet function, the
page is stamped as follows.
GCSTMP8E
2
GCSTMPBE
P.326 "Page Numbering".
P.326 "Page Numbering".
Stamp
2
199