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3 x 500-sheet input tray ................................................................................... 530
IPTU ................................................................................................................ 531
Solenoids ......................................................................................................................... 531
Solenoids ........................................................................................................ 531
Product base ................................................................................................... 532
1 x 500-sheet input tray ................................................................................... 532
3 x 500-sheet input tray ................................................................................... 533
Switches .......................................................................................................................... 534
Switches .......................................................................................................... 534
Product base ................................................................................................... 534
1 x 500-sheet input tray ................................................................................... 535
3 x 500-sheet input tray ................................................................................... 535
Block diagrams ................................................................................................................ 537
Main assemblies ............................................................................................. 537
Main parts ....................................................................................................... 540
PCAs ............................................................................................................... 541
1 x 500-sheet input tray ................................................................................... 542
3 x 500-sheet input tray ................................................................................... 543
Intermediate paper-transfer unit (IPTU) .......................................................... 544
General timing chart ........................................................................................................ 545
General circuit diagrams .................................................................................................. 545
Signals .............................................................................................................................................. 550
8 Output accessories and intermediate paper-transfer unit (IPTU)
Theory of operation .......................................................................................................................... 580
Intermediate paper-transfer unit (IPTU) ........................................................................... 580
Basic operation ............................................................................................... 580
Feed operation ................................................................................................ 582
Jam detection .................................................................................................. 582
3-bin stapler/stacker ........................................................................................................ 583
Basic operation ............................................................................................... 583
Electrical circuitry ............................................................................ 584
Feed drive system ........................................................................................... 584
Construction of the control system ................................................. 585
Paper delivery path (stapler/stacker and booklet maker) ............... 587
Intermediate-process output-bin assembly (stapler/stacker and booklet
maker) ............................................................................................................. 591
Stack job offset ............................................................................... 591
Process output bin paper-stacking operation .................................................. 593
Offset operation ............................................................................................... 593
Stack trailing-edge assist operation ................................................................ 594
Stack delivery operation .................................................................................. 594
Staple operation (stapler/stacker and booklet maker) ..................................... 595
Staple unit ....................................................................................... 598
xiv ENWW