Ricoh M281 Series Service Manual page 364

Paper Feed Unit (Paper Feed Unit PB1100)
4. Remove the paper feed roller [A] from the feed roller holder [B]. (hook×1)
5. Remove the pickup roller [A]. (hook×1)
4.26.2 SEPARATION ROLLER
1. Remove the paper feed tray [A] of the optional paper feed unit by pulling it out.
2. Remove the separation roller holder [A].
D255/D256/M281/M282 4-170 SM