Ricoh M281 Series Service Manual page 366

Paper Feed Unit (Paper Feed Unit PB1100)
4.26.3 MAIN BOARD
1. Uninstall the optional paper feed unit from the main machine.
2. If the optional paper feed unit is installed on the caster table, uninstall it from the caster
table.
3. Remove the paper feed tray [A] of the optional paper feed unit by pulling it out.
4. Turn over the optional paper feed unit [A], and then remove the board cover [B].
(hook×2)
D255/D256/M281/M282 4-172 SM