Ricoh Aficio MP2550B Service Manual page 638

2.3 PROOF TRAY............................................................................................. 40
2.4 SHIFT TRAY ............................................................................................... 41
2.4.1 UP/DOWN MOTION .......................................................................... 41
2.4.2 SIDE-TO-SIDE MOTION.................................................................... 42
2.5 BOOKLET TRAY......................................................................................... 43
2.6 JOGGER UNIT............................................................................................ 46
2.7 EXIT GUIDE PLATE, PAPER FEED OUT .................................................. 47
2.8 STAPLER UNIT MOVEMENT..................................................................... 48
2.9 STACKING FOR BOOKLET STAPLING..................................................... 49
2.9.1 OVERVIEW........................................................................................ 49
2.9.2 8.5 X 14 (LEGAL) OR SHORTER...................................................... 49
2.9.3 LONGER THAN 8.5 X 14 INCHES .................................................... 50
2.10 MOVING THE STACK TO THE FOLDING POSITION.......................... 52
2.11 FOLDER................................................................................................ 53
2.11.1 OVERVIEW .................................................................................. 53
2.11.2 FOLD PLATE ............................................................................... 53
2.11.3 FOLD ROLLERS .......................................................................... 54
2.12 PUNCH UNIT ........................................................................................ 55
2.12.1 OVERVIEW OF OPERATION ...................................................... 55
2.12.2 PAPER POSITION DETECTION ................................................. 57
2.12.3 PUNCH UNIT MOVEMENT.......................................................... 58
2.12.4 PUNCH SELECTION AND FIRING.............................................. 58
2.12.5 PUNCH HOPPER MECHANISM.................................................. 59
B793 ii SM