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Comprehensive Guide to ML-347x Series Hardware Specifications and Troubleshooting

This document provides an in-depth overview of the ML-347x series hardware. It covers master specifications, detailed block and connection diagrams, and a summary of major components such as the motherboard, power supplies, and fuser assembly. It outlines common installation procedures, installer dialog details, and offers troubleshooting strategies for common issues, including power failures, component errors, and door malfunctions. The goal is to equip technicians with the necessary knowledge for optimal installation, maintenance, and problem resolution.

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Comprehensive Guide to ML-347x Series Hardware Specifications and Troubleshooting

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  1. ML-347xHardware

  2. Agenda • Master specification • Block diagram • Connection diagram • Summary of major parts • Trouble Shooting • Review

  3. Ⅰ. Installation Procedure Map Ⅰ. Master specification Objectives • To know the brief specification of ML-347x series

  4. Ⅰ. Master specification

  5. Ⅰ. Master specification Process

  6. Ⅱ. Common Installer Dialog Details Ⅱ. Block diagram Objectives • To describe the block diagram

  7. Ⅱ. Block diagram

  8. Ⅱ. Common Installer Dialog Details Ⅲ. Connection diagram Objectives • To describe the wiring diagram

  9. Ⅲ. Connection diagram

  10. Ⅱ. Common Installer Dialog Details Ⅳ. Summary of major parts Objectives • To describe the organization and function of major parts

  11. Ⅳ. Summary of major parts LSU 24V , 5V Main board SMPS HVPS Fuser

  12. Ⅳ. Summary of major parts Main board Flash ROM PHY IC USB IC SPGPv3 (ASIC) SDRAM SRAM

  13. Ⅳ. Summary of major parts HVPS PBA SUPPLY -630±3% THV +1300±3% -1200±3% DEV -430±3% OPC -130±15.4% MHV -1350±3%

  14. Ⅳ. Summary of major parts SMPS PBA Fuse 24V Fuse 5V Fuse 5V

  15. Ⅳ. Summary of major parts Fuser Ass’y Thermostat Thermistor

  16. Ⅱ. Common Installer Dialog Details Ⅴ. Trouble shooting Objectives • To give some solutions with trouble

  17. Ⅴ. Trouble shooting No Power

  18. Ⅴ. Trouble shooting LSU error

  19. Ⅴ. Trouble shooting Fuser error

  20. Ⅴ. Trouble shooting Toner error

  21. Ⅴ. Trouble shooting Fuser door open

  22. Ⅵ. Review Review Ⅰ. Do you have any question for troubleshooting? Ⅱ. Is there anything to request for better service?

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