Olivetti PG L2028 Special Operation Manual page 51

Connecting and Printing
5
Load the even pages printed into the paper cassette with the
instruction sheet facing up and the arrows pointing toward the
printer.
Long Edge Binding
Note If the paper is considerably curled in one direction, roll the
paperin the opposite direction to counteract the curl. If this will not
cancel the curl satisfactorily, try to reduce the number of sheets
loaded in the paper cassette to the maximum of 100.
6
Select OK on the Manual Duplex instruction message box. All the
odd pages will be printed.
Short Edge Binding
3-9