Ricoh M281 Series Service Manual page 363

4.26 PAPER FEED UNIT (PAPER FEED UNIT PB1100)
4.26.1 PAPER FEED ROLLER, PICKUP ROLLER
1. Remove the paper feed tray [A] of the optional paper feed unit by pulling it out.
2. Slide the shaft [A] to the left while pushing the release lever [B].
3. Remove the feed roller holder [A] by sliding it to the left.
SM
Paper Feed Unit (Paper Feed Unit PB1100)
4-169 D255/D256/M281/M282