Ricoh Di-C1 Manual page 231

SP 5181
Some paper sizes are almost the same and
cannot be distinguished by the sensors.
To select which size is detected, use SP 5181.
SP 5112
Tray 2: If the user cannot select a non-standard
paper size with the user tool, set this SP to 1.
Auto paper size detection is disabled if the user
selects a non-standard paper size.
SP 1007-1
Bypass paper size detected (USA)
0: LT SEF, 1: LG
Slide 231
No additional notes
Size Detection – SP Modes
231
Di-C1 Training