Ricoh Aficio 551 Copy Reference Manual page 73

A
Press the [Sort] or [Rotate Sort] key.
When the finisher is not installed
When the 50-Sheet/100-Sheet Finisher is installed
When the booklet finisher is installed
Note
When the optional finisher is installed, use the User Tools to display [Rotate
Sort]. See "Select Stack or Rotate sort" in
B
Enter the number of copy sets with the number keys.
Limitation
The maximum number of sets is 999.
Note
To change the entered number, press the {Clear/Stop} key.
C
Set your originals, then press the {Start} key.
Sort/Stack/Staple
P.329 "Input/Output".
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