Flipper entry sensor Face-up paper path Face-down paper path Interlock switch Path through accumulator Paper input from the printer Flipper Flipper exit sensor (FLExit) Accumulator exit sensor Stapler/carriage Controller PCA Power supply Figure 73. Stapler/stacker paper path and sensors EN 3,000-sheet stapler/stacker 215 h (FLEntry) Flipper ent path mulator ensor CExit) ensor Sens) ulator ry