Ricoh Di-C1.5a Manual page 233

Size Detection – SP Modes
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 233
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