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3 Remove the three screws (A) securing the isolation unit.

4 Remove the biasing screw (B).

7528

Repair information

424

Table of Contents

Default Chapter1
- Service Manual1
Product Information2
Edition Notice2
- Table of Contents3
Notices and Safety Information13
- Laser Notice13
- Avis Relatif À L'utilisation du Laser13
- Notiﬁcació del Làser13
- Aviso de Láser13
- Aviso sobre Laser14
- Avvertenze Sui Prodotti Laser14
- Laserinformatie14
- Lasererklæring14
- Laser-Hinweis15
- Laserilmoitus15
- Lasermerknad15
- Meddelande Om Laser15
- レーザーについて16
- 레이저 고지사항16
- 激光注意事项16
- 雷射聲明16
- Safety Information16
- Consignes de Sécurité17
- Informació de Seguretat17
- Información de Seguridad18
- Informações sobre Segurança18
- Informatie over Veiligheid18
- Informazioni Sulla Sicurezza19
- Säkerhetsinformation19
- Sicherheitshinweise20
- Sikkerhedsoplysninger20
- Sikkerhetsinformasjon20
- Turvallisuusohjeet21
- 안전 정보21
- 安全信息21
- 安全情報22
- 安全資訊22
Preface23
- Conventions23
- General Caution Statements23
General Information25
- Finding the Serial Number25
- Paper and Specialty Media Guide26
- Data Security Notice31
- Tools Required for Service32
Diagnostic Information35
- Troubleshooting Overview35
  - Performing the Initial Troubleshooting Check35
  - Power-On Reset (POR) Sequence35
- Fixing Print Quality Issues36
- Fixing Scan Quality Issues64
- Paper Jams70
- User Attendance Messages163
- Printer Hardware Errors181
- Adf/Scanner Hardware Errors238
Service Menus277
- Understanding the Printer Control Panel277
- Diagnostics Menu280
Repair Information295
- Removal Precautions295
- Adjustments303
  - Registration Adjustment305
  - Scanner Manual Registration307
- Removal Procedures308
- Cover Removals309
- Duplex Removals343
- Left Removals350
- Right Removals365
- Front Removals387
- Rear Removals408
- Top Removals413
- Bottom Removals420
- Sheet Tray Removals444
Component Locations457
- Controller Board Connectors458
- LVPS Controller Board Connectors473
- Motor Locations475
- Sensor Locations476
Maintenance479
- Inspection Guide479
- Scheduled Maintenance480
  - Maintenance Kits480
  - Identifying the Type of Fuser Used in the Printer481
- Cleaning the Printer482
  - Cleaning the Printhead Lenses483
  - Cleaning the Main Tray Duplex Turnaround484
Parts Catalog486
- Assembly 1: Covers 1487
- Assembly 2: Covers 2489
- Assembly 3: Control Panel491
- Assembly 4: ADF and Flatbed493
- Assembly 5: Fuser495
- Assembly 6: Transfer Module497
- Assembly 7: Paper Feed499
- Assembly 8: Paper Path 1501
- Assembly 9: Paper Path 2503
- Assembly 10: Duplex505
- Assembly 11: Electrical507
  - Assembly 12: 550‑Sheet Tray Option 1511
  - Assembly 13: 550‑Sheet Tray Option 2513
- Assembly 14: Adjustable Stand515
- Assembly 15: Miscellaneous Parts517
- Assembly 16: Power Cords519
Appendix A: Printer Speciﬁcations521
Appendix A: Printer Speciﬁcations521
- Power Consumption521
- Selecting a Location for the Printer522
- Noise Emission Levels523
- Temperature Information523
Appendix B: Options and Features525
Appendix B: Options and Features525
- Available Internal Options525
- Installing Optional Trays525
- Adding Available Options in the Print Driver526
  - For Windows Users526
  - For Macintosh Users526
Appendix C: Theory of Operation529
- MPF Section530
- Isolation Unit Section531
- Aligner Section532
- Fuser Section534
- Duplex Section535
- Print Engine Theory537
  - Electrophotographic Process537
- Adf Theory544
- Color Theory551
Appendix D: Acronyms555
Index557
Part Number Index563
Part Name Index569
- Wiring Diagram575

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