Xerox DocuColor 12/DCCS50

Publication Information12

Detailed Maintenance Activities (HFSI)34

ADC and Jam Sensors36

Cleaning Procedures36

Final Actions36

Front Door Interlock Open RAP41

VDC Power (IIT/IPS) RAP43

VDC Power (IIT/IPS LVPS) RAP46

Interlock Relay Failure RAP47

Power Save and LED RAP48

UI Panel Fail RAP49

UI RAM Fail RAP49

Dark Screen RAP50

Two Sided Copy Feature Not Available RAP50

IOT-SYS Logic Fail RAP51

Mailbox Communication Failure RAP53

TR0 Fail RAP57

Half-Tone EEP-ROM Limit Failure RAP58

IOT EEP-ROM Limit Failure RAP58

Half-Tone EEP-ROM R/W Failure RAP59

X ID DATA NG Failure RAP60

APS NG-No Paper RAP61

APS NG-Not in Position RAP61

APS MIX NG Image Loss RAP62

Platen Document Size Unknown RAP63

Ams Ng Rap64

Image Quality Raps277

Introduction277

IQ 1 Image Quality Troubleshooting Entry RAP277

Cleaning Procedures278

IQ Isolation RAP278

IQ 2 Defect Listing279

Defect Description281

IQ 3 Geometric RAP283

IQ 4 Developer Checkout Procedure284

IQ 5 Xerographic Subsystem Checkout Procedure285

IQ6 IIT Checkout Procedure286

IQ 7 IDFE / Network Checkout Procedure287

IQ 8 Residual Image RAP287

IQ 9 Uneven Density RAP288

IQ 10 Low Image Density RAP289

IQ 11 High Image Density RAP290

IQ 12 Bands, Lines, Smears, or Streaks RAP290

IQ 13 White, Black or Colored Spots RAP292

IQ 14 IOT Solid Black (or Color) Copy RAP293

IQ 15 Background RAP293

IQ 16 Blank (or Nearly Blank) Copy RAP294

IQ 17 Deletions RAP295

IQ 18 IOT Missing Colors RAP297

IQ 19 Bead Carryout RAP297

IQ 20 IOT Graininess RAP299

IQ 21 Blurred or Fuzzy Image RAP300

IQ 22 Mottle RAP300

IQ 23 Poor Color Balance RAP301

IQ 24 Back Side or Side Two Copy Contamination RAP302

IQ 25 Hollow Character RAP302

IQ 26 Low Contrast Reproduction RAP303

IQ 27 Color-To-Color Misregistration RAP303

IQ 28 Moire RAP304

IQ 29 Newton Rings RAP304

IQ 30 Fuser Offsetting RAP305

IQ 31 Fuser Oil Streak RAP306

IQ 32 ROS Borders RAP307

IQ 33 Solid Area Reproduction RAP307

IQ 34 Text / Image Separation RAP308

IQ 35 Toner Starvation RAP308

IQ 36 Unfused Copy RAP309

IQ 37 Developer Bias HVPS RAP309

IQ 38 Charge Corotron HVPS RAP310

IQ 39 Preclean Corotron HVPS RAP311

IQ 40 2Nd BTR HVPS RAP312

IQ 41 1St BTR HVPS RAP313

Iq 42 Dts Hvps Rap314

IQ 43 Paper Feed Checkout Procedure314

Image Quality315

IQ 44 Registration Checkout Procedure315

IQ 45 Wrinkle RAP315

IQ 46 Black Bead Carryout RAP316

IQ 47 ATC Sensor RAP317

Image Quality Specifications321

Image Quality Defects323

Repairs & Adjustments325

REP 1.3.1 Belt (Developer Drive)327

REP 1.4.1 Belt (2Nd BTR, Auger)329

REP 1.5.1 Tray 5/Regi. /Tray 1 Take Away Drive332

Moving the Harness333

REP 1.6.1 Exit Drive333

REP 1.6.2 Fuser Drive335

Removing the Fuser Drive337

REP 1.6.3 Exit/Fuser Nip Drive Assembly337

REP 2.1.1 Tray 1 Set Sensor341

REP 2.1.2 Tray 2/3/4 Size Sensor341

REP 2.4.1 Tray 1/2/3/4 Feeder342

REP 2.5.1 Tray 1/2/3/4 Feed/Nudger Roll Assembly343

REP 2.6.1 Feed Lift Motor344

REP 2.6.2 Retard Roll345

REP 2.7.1 Tray 2-4 Take Away Drive346

REP 2.7.2 Tray 2/3/4 Feed T/A Clutch346

Removing the Tray 2 Feed T/A Clutch347

REP 2.7.3 T/A Motor348

REP 2.8.1 Tray 1 Feed-Out Sensor, T/A Sensor348

REP 2.8.2 Tray 2/3/4 Feed-Out Sensor350

REP 2.9.1 Tray 5351

REP 2.11.1 Tray 5 Nudger Roll352

REP 2.11.2 Tray 5 Feed Roll353

REP 2.12.1 Tray 5 Lift Motor354

REP 2.12.2 Tray 5 Retard Roll356

REP 2.14.1 Regi. Unit357

REP 2.15.1 Regi. Sensor359

REP 2.15.2 Regi. Roll360

REP 2.15.3 Regi. Motor361

REP 2.16.1 Pre Regi. Sensor362

REP 2.16.2 Pre Regi. Roll362

REP 2.17.1 Vacuum Transport363

REP 2.17.2 Vacuum Transport Belt364

REP 2.21.1 Duplex Path Sensor365

REP 2.21.2 Duplex out Sensor366

REP 2.21.3 Duplex Belt 1/2367

REP 2.23.1 Inverter 1369

REP 2.23.2 Inverter 2371

REP 2.24.1 Inverter Motor372

REP 2.24.2 Release Solenoid372

REP 2.26.1 Exit Roll373

REP 3.1.1 Platen Glass375

REP 3.1.2 IIT Opening/Closing376

Rep 3.2.1 CCD Pwb378

Repairs & Adjustments378

REP 3.3.1 Carriage Cables379

Locking the Cable382

REP 3.3.2 Carriage Motor384

REP 3.4.1 Exposure Lamp385

REP 3.4.2 Lamp Wire Harness386

REP 3.5.1 IPS Chassis387

Rep 4.1.1 Ros389

REP 5.1.1 Erase Lamp391

REP 5.3.1 Drum Unit392

REP 5.3.3 Cleaning Brush393

REP 5.3.4 Cleaning Blade394

REP 5.4.1 Charge Corotron395

REP 5.4.2 PCC Wire395

REP 5.5.1 Waste Toner Auger397

REP 5.5.2 Auger Belt398

REP 6.1.1 Rotary PWB401

REP 6.1.2 Rotary Home Position Sensor402

REP 6.1.3 Rotary Latch Lever403

REP 6.1.4 Bias Brush406

REP 6.2.1 Toner Cartridge Unit407

REP 6.3.1 Toner Cartridge Housing (Cyan, Magenta, Yellow, Black)408

REP 6.3.2 Cartridge/Dispense Motor (Cyan, Magenta, Yellow, Black)409

REP 6.4.1 Dispense PWB410

REP 6.6.1 Development Housing411

REP 6.6.2 Developer Replacement413

REP 6.7.1 Rotary Auger (Cyan, Magenta, Yellow, Black)416

REP 6.7.2 Trickle Auger420

Rep 7.1.1 Ibt423

REP 7.1.2 IBT Cleaner425

REP 7.5.1 IBT Belt426

REP 7.6.1 Bias Roll428

REP 7.6.2 Drive Roll430

REP 7.6.3 Back-Up Roll432

REP 7.6.4 Contact Roll433

REP 7.9.1 2Nd BTR433

REP 7.10.1 2Nd BTR Roll435

REP 8.1.1 Fuser Unit439

REP 8.2.1 Donor Roll Assembly440

REP 8.3.1 Heat Roll441

REP 8.3.2 Heat Roll Heater Rod444

REP 8.3.3 Pressure Roll446

REP 8.3.4 Pressure Roll Heater Rod449

REP 8.3.5 Heat Roll Stripper Finger451

REP 8.4.1 Web Motor/Ext-HR Retract Motor452

REP 8.7.1 Oil Pump455

REP 8.7.2 Oil Wick456

REP 8.8.1 External H/R Heater Rod457

REP 8.8.2 External Heat Roll460

REP 8.10.1 Pressure Roll Stripper Finger461

REP 9.2.1 Opening/Closing the IOT Control PWB Chassis463

REP 9.2.2 IOT Drive PWB463

REP 9.2.3 Half Tone PWB465

REP 9.3.1 Power Chassis467

Rep 9.3.2 Iot Lvps469

Rep 9.3.3 B3/B3H (Ess) Lvps470

REP 9.5.1 Control Panel472

REP 9.6 Billing Data PWB Replacement473

REP 10.2.1 Fuser Fan475

REP 10.2.2 Suction Blower Motor476

Cover477

REP 11.1.1 Platen Cushion477

Rep 12.1.1 Dadf479

REP 12.2.2 Registration Gate Solenoid480

REP 12.3.1 Left/Right Counter Balance480

REP 12.3.2 DADF Control PWB482

REP 12.4.1 Feed Motor483

REP 12.4.2 Nudger Roll484

REP 12.4.3 Feed Roll485

REP 12.5.1 Document Feed Lower Chute486

REP 12.5.2 Retard Roll487

REP 12.5.3 Set Gate Solenoid488

REP 12.5.4 Registration Sensor489

REP 12.5.5 Size Sensors 1/2 (Rear/Front)490

REP 12.6.1 DADF Belt Motor491

REP 12.7.1 Duplex Sensor492

REP 12.8.1 Registration Pinch Roll494

REP 12.9.1 Exit Motor496

REP 12.10.1 Platen Belt497

REP 13.3.1 Decurler499

REP 13.5.1 Vertical Led/Sensor500

REP 13.5.2 bin Tray 1501

REP 13.6.1 bin Trays 2 - 10503

REP 13.13.1 Decurler Rolls 1/2504

REP 13.13.2 Gear and Cam506

REP 13.14.1 Decurler Stepping Motor508

REP 14.1.1 Offset Motor509

REP 19.1 Removing the IDFE511

REP 19.2 Token Ring PWB (IDFE)512

REP 19.3 Dimms on the Motherboard (IDFE)512

ADJ. 3.4.1 Full Rate/Half Rate Carriage Position513

ADJ 6.1.1 Rotary Home Position Sensor517

ADJ 6.6.1 Rotary Development Housing Position517

ADJ 8.1.1 Fuser Nip (DC701)521

ADJ 8.8.1 External Heat Roll Nip Adjustment521

ADJ 9.1.1 MAX SET up (Dc929)523

ADJ 9.1.2 IIT Calibration (Dc945)523

ADJ 9.1.3 ADC AGC Setup (Dc934)524

ADJ 9.1.4 VH/VM Setup (Dc933)524

ADJ 9.1.5 IOT Highlight Setup (Dc918)525

ADJ 9.1.6 TRC Control/Toner Density (Dc922)525

ADJ 9.1.7 TRC Adjust (Dc924)/Trc Check PG (Dc939)526

ADJ 9.1.10 IOT Registration Series (Dc129)527

ADJ 9.1.8 Color Balance Setup (Dc919: Copier/Printer)527

Registration for Duplex Tray529

ADJ 9.1.14 IIT Lead Edge Registration531

ADJ 9.1.15 IIT Side Edge Registration532

ADJ 9.1.16 IIT Horizontal Magnification/Vertical Magnification (IIT Machine)533

ADJ 9.1.17 Tray 5 Guide (Dc740)535

ADJ 9.1.18 Touch Panel Starting Point Correction536

ADJ 9.1.19 Tray 2, 3, and 4 for 12 X 18 Paper537

ADJ 12.1.1 DADF Side Registration539

ADJ 12.3.1 Left/Right Counter Balance540

ADJ 12.3.2 DADF Parallelism541

ADJ 12.3.3 DADF Height542

ADJ 12.4.1 DADF Lead Edge Registration545

Parts List547

Introduction549

Subsystem Information550

Parts Lists551

Symbology551

PL 1.1 Drum/Ibt Drive553

PL 1.2 Main Motor, Drum Brush Drive554

PL 1.3 Deve./Bpd Drive, IBT Cleaner Retract555

PL 1.4 2Nd Btr/Oil Roll/Auger Drive556

Main Motor 2, Tray 5/Regi./Tray1 Take Away Drive557

PL 1.6 Fuser/Exit Drive558

PL 2.1 Tray 1/2/3/4, Tray Sensor, Label559

PL 2.2 Tray 1 Component560

PL 2.3 Tray 2/3/4 Component561

PL 2.4 Tray 1-4 Feeder562

PL 2.5 Feeder Component (Part 1 of 2)563

PL 2.6 Feeder Component (Part 2 of 2)564

PL 2.7A Tray 2-4 Take Away Drive (Part 1 of 2)565

PL 2.7B Tray 2-4 Take Away Drive (Part 2 of 2)566

PL 2.8 Left Lower Cover567

PL 2.9 Tray 5 Unit, Tray 5 Feed Clutch/Roll568

PL 2.10 Tray 5 Upper (Part 1 of 2)569

PL 2.11 Tray 5 Upper (Part 2 of 2)570

PL 2.12 Tray 5 Base571

PL 2.13 Tray 5 Tray572

PL 2.14 Regi. Unit, DTS HVPS573

PL 2.15 Regi.-Regi574

PL 2.16 Regi.-Pre Regi575

PL 2.17 Vacuum Transport576

PL 2.18 Drawer Accessory, Duplex Baffle577

PL 2.19 Drawer Frame, Duplex out Motor/Roll, Duplex Chute578

PL 2.20 Duplex In/Aligner Baffle Component579

PL 2.21 Duplex In/Aligner Chute Component580

PL 2.22 Drawer Frame Component581

PL 2.23 Inverter Unit582

PL 2.24 Inverter 1 Component583

PL 2.25 Inverter 2 Component (Part 1 of 2)584

PL 2.26 Inverter 2 Component (Part 2 of 2)585

PL 3.1 Platen Glass: ITT586

PL 3.2 CCD PWB, Sensor587

Parts List588

PL 3.3 Carriage Cable/Motor588

PL 3.4 Full/Half Rate Carriage589

Pl 3.5 Ips590

Pl 4.1 Ros591

PL 5.1 ESV Sensor, Erase Lamp592

PL 5.2 CC/PCC Connector, Waste Toner Bottle (IOT Rear)593

PL 5.3 Drum Component594

PL 5.4 Charge/Pre Clean Corotron595

PL 5.5 Waste Toner Auger596

PL 6.1 Development Components597

PL 6.2 Toner Cartridge Unit598

PL 6.3 Toner Cartridge Component (Part 1 of 2)599

PL 6.4 Toner Cartridge Component (Part 2 of 2)600

PL 6.5 Rotary Dispenser601

PL 6.6 Deve. Housing602

PL 6.7 Rotary Frame/Auger603

PL 7.1 IBT System Component604

PL 7.2 Rail Front Plate605

PL 7.3 Left/Right Rail606

PL 7.5 IBT-Belt, Sensor, Steering Roll607

PL 7.6 IBT Component (Part 1 of 2)608

PL 7.7 IBT Component (Part 2 of 2)609

PL 7.8 IBT Cleaner610

PL 7.9 2Nd BTR611

PL 7.10 2Nd BTR Component612

PL 8.1 Fuser Unit, Front Cover613

PL 8.2 Fuser Sub Assembly614

PL 8.3 Heat/Pressure Roll615

PL 8.4 Heat Roll Sensor, External Heat Roll Retract/Web Motor616

PL 8.5 Web Shutter, Cleaning Roll (Heat Roll)617

PL 8.6 Pressure Roll Sensor, Pressure Roll Nip618

PL 8.7 Oil Pump/Tank619

PL 8.8 External Heat Roll620

PL 8.9 Pick Up/Donor Roll621

PL 8.10 Exit Chute622

PL 9.1 Front, Right623

PL 9.2 IOT Top/Rear624

PL 9.3 Tray Module, Rear625

PL 9.4 Drawer Connectors626

PL 9.5 Control Panel627

PL 9.6 Emi/Safety for Fuser Heat Lamp (50 Hz)628

PL 10.1 Air System-Front Door629

PL 10.2 Air System-Rear, Right630

PL 11.1 Platen/Top Cover631

PL 11.2 Front/Right Cover632

PL 11.3 Rear/Left Cover633

PL 12.1 Front/Rear Cover, Entrance Tray634

PL 12.2 Top Cover, Registration Gate Solenoid635

PL 12.3 Counter Balance, DADF Control PWB636

PL 12.4 Document Feed Chute (Upper), Feed Motor637

PL 12.5 Document Feed Chute (Lower)638

PL 12.6 DADF Belt Motor, Duplex Roll639

PL 12.7 Duplex Chute640

PL 12.8 Registration Roll641

PL 12.9 Exit Motor/Chute642

PL 12.10 Document Transport, Platen Belt643

PL 12.11 Platen Glass, Registration Gate, Exit Tray: DADF644

Mail Box645

PL 13.1 Mail Box Accessory645

PL 13.2 Docking Rail646

PL 13.3 Mail Box Sub Assembly647

PL 13.4 Mail Box Cover648

PL 13.5 ACT Cover, bin Tray 1649

PL 13.6 bin Tray 2/4/6/8650

PL 13.7 bin Tray 3/5/7/9651

PL 13.8 bin Tray 10652

PL 13.9 Mail Box Roll, Chute653

PL 13.10 Mail Box Motor, PWB654

PL 13.11 Decurler Cover655

PL 13.12 Decurler Chute, PWB656

PL 13.13 Decurler Roll657

PL 13.14 Decurler Transport Roll658

PL 13.15 Cabinet659

PL 14.1 Offset Catch Tray660

PL 19.1 IDFE Assembly and Components661

PL 25.1 Electrical Connectors662

General Procedures683

GP 1 Fuser Break-In Procedure683

Standard Break-In Procedure683

GP 2 Increased Imageable Area Setup684

GP 4 Intermittent Problem RAP684

Specifications684

GP 5 Verifying the Administration Tools Password685

GP 6 Verifying the Auditron Password688

GP 7 Verifying Tools Mode Password691

GP 8 IDFE Power Off/Power on (PO/PO) Procedure691

GP 9 IDFE Software Installation (CD-ROM) Procedure692

GP 10 Replacing Billing Pwbs693

GP 11 PWS (Diagnostics) Software Installation Procedure693

GP 12 Printing Configuration Reports694

GP 13 Printing a Complex Test Page694

GP 15 Setting the Machine for a Time & Materials (T & M) Account695

GP 16 Setting the Machine to Recognize the Sorter as a Mailbox695

GP 17 IDFE Software Update (CD-ROM)696

GP 18 IOT UI Language Change697

GP 20 2Nd BTR Service Procedure697

Entering the Service Diagnostic Mode Using the PWS699

DC Quick (CODE Number LIST)700

Dc100 Service Entry702

Dc110 Displaying the CRU-Related Data703

Dc118 Jam Counter703

Dc120 Fail Counter704

Dc122 Shutdown History705

Dc129 System Registration Adjustment706

Dc131 NVM Read/Write706

Dc131 Ui/Tools (700)707

Dc131 DADF NVM List (710)719

Dc131 IIT NVM List (715, 719)720

Dc131 ROS NVM List (720)721

Dc131 IPS NVM List (730)723

Dc131 PH NVM List (749)724

Dc131 PH NVM List (760)724

Dc131Ph NVM List (761)727

Dc131Sys NVM List (752)761

Dc131Sys NVM List (759)762

Dc131 BILLING NVM List (990)763

Dc131Sys NVM List763

Dc131 Procon1 NVM List (773)764

Dc131 Procon2 NVM List (774)766

Dc131 Procon3 NVM List (775)767

Dc131 IBT NVM List (771), Dc131 Drive NVM List (772)768

Dc131 IBT NVM List (771), Dc131 Drive NVM List (772)769

Dc131 Developer NVM List (776)770

Dc131 Fuser NVM List (777)772

Dc131 Sorter/Finisher NVM List (780)(790)773

Dc132 Serial Number/Billing Meter Synchronization773

Dc135 HFSI Counter List774

Dc140 Analog Monitor775

Dc188 How to Exit from Service Mode776

Dc301 NVM Initialization776

Dc305 UI Component Check779

Dc330 Component Control779

Dc351 NVM Initialize, Save/Restore795

Dc361 NVM Save/Restore797

Dc371 Configuration Page798

Dc391 Edit Pad799

Dc612 Color Test Pattern Print799

Dc701 Fuser Nip Measurement802

Dc740 Tray 5 Guide Adjustment803

Dc915 Machine Output803

Dc918 IOT Highlight Setup805

Dc919 Color Balance Setup (IIT Installed Machine Only)806

Dc920 Developer Unit Check806

Dc922 TRC Control/Toner Density Adjustment807

Dc923 PROCON PG807

Dc924 TRC Adjust / Dc939 TRC Check PG808

Dc929 Max Setup808

Dc933 VH/VM Setup809

Dc934 ADC/AGC Setup809

Dc945 IIT Calibration810

How to Enter/Exit the UI (IOT) Diagnostics Mode811

UI (IOT) Diagnostic Modes811

NVM Read / Write (Dc131 NVM UI Diagnostics)812

NVM Reset / NVM Initialization (Dc301 UI Diagnostics)812

Component Control (Dc330 UI Diagnostics)813

Print (Dc612 Test Pattern UI Diagnostics)813

Fuser Nip Measurement (Dc701 UI Diagnostics)817

Developer Unit Check (Dc920 UI Diagnostics)818

Max Setup (UI Diagnostics)818

ADC/AGC Setup (Dc934 UI Diagnostics)819

IIT Calibration (Dc945 UI Diagnostics) (IIT Installed Machine Only)819

IOT Highlight Setup (Dc918 UI Diagnostics)820

VH/VM Setup (Dc933 UI Diagnostics)820

TRC Adjustment (Dc924 UI Diagnostics)821

TRC Setup/Toner Concentration Adjustment (Dc922 UI Diagnostics)821

Color Balance Setup (Dc919 UI Diagnostics) (IIT Installed Machine Only)822

General Information823

Installation Space Requirements823

Product Specifications828

Common Tools837

Product Tools and Test Patterns837

Cleaning Materials838

Machine Consumables838

Change Tag Introduction839

Classification Codes839

Processor (P) Tags839

Mail Box / Sorter Tags846

High Capacity Feeder (HCF) Tags847

Integrated Digital Front End (IDFE) Tags848

High Capacity Feeder (HCF) Installation1387

Foreign Interface Install Instructions1409

Removal Procedures1409

Electronic Pre-Collation (EPC) Enablement Kit Installation1411

Electronic Pre-Collation (EPC) Kit Installation1416

EPC Assembly Installation1418

Principles of Operation1421

Product Configurations1423

Principles of Operation Overview1425

Local User Interface1427

Remote User Interface1427

Machine Run Control1427

Document Transportation1427

Duplex Automatic Document Feeder1428

Mailbox/Sorter and Offset Copy Tray1429

Xerographics1429

Fuser Assembly1429

Paper Transportation1429

Voltage Dependent Assemblies1431

Unswitched AC Power1432

Power Switching Control Circuitry1434

Unswitched DC Power1436

Switched AC Power1436

AC Driver PWBA1436

Switched DC Power1437

IDFE Low Voltage Power Supply (IDFE LVPS)1437

IOT Low Voltage Power Supply (IOT LVPS)1438

IIT/IPS Low Voltage Power Supply1441

Electrical Interlocks1443

User Interface Base PWBA Block Diagram1449

LCD Display PWBA and Contrast Control PWBA1450

LCD Backlight Lamp and Power Supply PWBA1452

Key/Led PWBA1452

Analog Touch Panel1455

Analog Touchscreen Interconnect Block Diagram1455

Control Architecture1457

Machine Usage Modes1459

Copier User Mode1459

Copier System Administrator Tools Mode1459

Copier Auditron Administrator Tools Mode1459

Integrated Digital Front End (IDFE) Self-Test1460

Self-Test1460

PWBA Leds1461

Copier Timing1464

Copy Input Media, Process Speed and TR0 Interval1464

Job Control1465

Job Control Sequence1465

Machine as a Printer: Print Simplified Job Control Sequence1466

Machine as a Copier with DADF: Copy Simplified Job Control Sequence - Originals in DADF1468

Digital Front End1469

Foreign Interface1469

Main Motor1471

Drum Motor1472

DADF Control Simplified Block Diagram1478

Document Feeding Components1479

DADF and IIT Interaction1479

DADF Document Transport1479

DADF Drive Component Locations1480

DADF Sensor Locations1480

DADF Sensors1481

Document Feeding Control1481

DADF Document Size Sensing1481

DADF Operation1483

Document Loading1483

Prefeed and Feed Operation1485

Inverting Documentation1485

Registration System1485

Inverter Drive Rollers1486

Exit System1486

Overview1487

Imaging Simplified Signal Flow Diagram1488

IIT and IPS Major Assemblies Locations (IIT/IPS Tray)1489

IPS Major Assemblies Locations (below IIT/IPS Tray)1489

Image Sensing (Digital Copier & Copier/Printer Configuration)1490

Xenon Lamp and Drive Circuitry1490

Carriage Motor and Drive1492

Full and Half-Rate Carriages1492

Xenon Lamp Interrupted Drive Waveform1492

CCD Color Image Sensor1493

Constant Optical Path Length1493

White Variation Correction1495

Automatic Output Control1495

Automatic Gain Control1495

Shading Control1495

Scanning the Document1496

Color Document Detection1496

Full-Rate Carriage Start Positions1496

Home and Start Positions of Full Range Carriage - Without DADF1497

Home and Start Positions of Full Range Carriage - with DADF1497

Carriage Speed Control1498

Scan Length Control1498

Initialization Carriage Motions1498

Post-Initialization Agc/Aoc/Shading Operations and Carriage Motions1498

Document Scanning Carriage Motion (DADF Document Positioning)1499

Pre-IPS PWBA1500

IIT/IPS Cooling1500

Image Processing (Digital Copier & Copier/Printer Configurations)1500

Pre-IPS PWBA Simplified Block Diagram1501

Br Pwba1501

Memory System PWBA and Memory Pwbas1502

Post-IPS1502

Red Memory Simplified Block Diagram1502

Edit PWBA1503

Post IPS PWBA Simplified Block Diagram1503

Edit PWBA Simplified Block Diagram1504

Image Source Selection1505

Image Processing (All Configurations)1506

Photoreceptor Exposure1508

Paper Tray Specifications1512

Interface Block Diagram1513

Paper Size Sensing1515

Tray Level Lift and Sensing1516

No Paper Sensing1517

Paper Path Description1519

Paper Transport Motors1520

Paper Feeders1522

Paper Feed1523

Retard Roller Operation1523

Paper Feed Control1523

Tray 5 Feed Operation1524

Vertical Transport1524

Mechanical Drives1525

Copy Size Sensing1525

Paper Registration and Pre-Fuser Transport1526

Paper Registration and Paper Transport to the IBT Belt1526

Paper Transport from the IBT Belt1526

Differentiating between Paper and Transparencies1526

Inverter and Duplex Paper Path1527

Print Exit1527

Two Step Image Transfer Process1529

Photoreceptor Drum1530

Drum Data1531

Photoreceptor Drum1531

Charge Corotron1532

Charging1532

Charge Corotron HVPS1533

Development1534

Developer Rotary Assembly1534

Developer Rotary Position1535

Developer Rotor Home Positioning Components1536

Developer Assembly Sequence1536

Developer Bias and Power Supply1537

Toner Supply1537

Conveyer Auger1539

Toner Cartridge and Cartridge Housing1539

Developer Distribution Path1539

Toner Supply Control1540

Waste Carrier Bottle1540

Trickle System1540

ADC (Automatic Density Control)1541

Intermediate Belt Transfer (IBT)1542

Toner Transfer Overview1542

ADC Sensor Simplified Block Diagram1542

IBT Cleaning Assemblies1544

TR0 Sensor1545

Ibt/Media Transport Sensors1545

Photoreceptor Cleaning1546

Cleaning Systems1546

Xerographics Motors1546

Bead Pick off Roll (BPO)1547

Preclean Corotron1547

Cleaner Assembly1547

Waste Toner System1547

Air Flow1549

Charge Corotron Intake Fan1549

Fuser Intake and Exhaust Fans1549

Suction Blower1549

IOT Fans Simplified Block Diagram1550

Developability Control1551

Electrostatic and ROS LED Quantity Control1551

Process Controls1551

Process Controls Overview1552

Process Controls Routines1553

Setup Mode1553

Setup Routines in Diagnostics1553

Setup Routines that Run Automatically1554

Mini Setup1554

Run Mode1554

Standby Mode1554

Functions of the Fuser Subassembly1555

The Fusing Process1555

Contact Arc1555

Fuser Cross Section View1555

Functional Description of Fuser Subassemblies1556

Fuser Motors Electrical Block Diagram1557

Copy Transport and Sensors1558

Temperature Control and Power Usage1558

Fuser Thermistor Resistance Values1558

Fuser Heaters and Heater Control Block Diagram1559

IOT Control NVM Fuser Roller Temperature Entries1559

Camming of Rollers1560

Fuser Warm up Sequence1560

Fuser Cooling System1560

PR/HR Nip (Pressure Roll Camming)1560

Fuser Release Agent1561

EHR/HR Fuser Nip (External Heat Roll Camming)1561

Web Cleaning of the Heat Roll1562

Web Assembly Circuit1562

Copy Exit1563

The Mailbox/Sorter Performs These Primary Functions1565

Mailbox/Sorter Attached to the Machine1565

Machine Configurations for Mailbox/Sorter1565

Sorter1566

Mailbox1566

Mailbox/Sorter Electrical Connections1566

Mailbox/Sorter Connections to IOT1567

Mailbox/Sorter Subassembly Simplified Block Diagram1567

Offset Catch Tray Electrical Connections1568

Decurler Simplified Block Diagram1568

Mailbox/Sorter Interlocks1569

Decurler Control1570

Print Transport through the Mailbox/Sorter1570

Mailbox/Sorter Pwbas1570

OCT Gate Control1571

Mailbox/Sorter Control1571

Sorter Functions1571

Paper Decurling Components and Function1571

Mailbox Configuration1572

Jam Sensing1572

Mailbox/Sorter and Decurler Sensor Locations1572

Offset Catch Tray (OCT)1573

Mailbox/Sorter Operation1573

Sorter Operation Overview1573

Mailbox Operation Overview1573

DC Power Circuits1575

Finisher Interlocks1575

Finisher Power1575

Finisher Power Components1576

+5 VDC Interlock Circuit1576

Finisher Control1577

Finisher Control Paths1577

The Finisher Paper Path1579

The Decurler1580

The Finisher Gate1580

The Mailbox Gate1581

Finisher Path for Stacking Without Stapling1581

Finisher Paper Path for Stapling and Stacking1582

Paper Path through Stapler1583

Compiler/Tamper Functional Description1584

Compiler Tray End Wall1585

Paper Being Compiled for Stapling1586

Compiler /Tamper Paper Path Components1587

Paper Set Positioned for Stapling1587

Stapler Functional Description1588

Staple Position Options1590

Eject/Offset Functional Description1591

Stapled Paper Set Eject1592

Eject/Offset Paper Path Components1593

Stacker Functional Description1594

Mechanical Drive1594

Stacker Tray Motor and Sensors1603

Stacker Tray Sensors1604

Stacker Tray Mechanical Drive Components1604

Electrical and Mechanical Operation of the IDFE1607

Power Distribution - Solid State Relay1608

Power Distribution - Printer Low Voltage Power Supply1608

Power Distribution - IDFE1608

Digital Signal Distribution from the IDFE to the IOT1609

IDFE Enclosure1610

Network Interface1610

Image Processing1611

Print Interface1611

Scan Interface1612

Glossary of Terms1613

Glossary of Terms and Contractions1615

Table of Contents

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