OKIPAGE 14ex LED Page Printer Service & Electrophotographic Process Guide PDF

Description

OKIPAGE 14ex LED Page Printer Service & Electrophotographic Process Guide – PDF DOWNLOAD

Description

This official OKIPAGE 14ex LED Page Printer Service Manual provides detailed technical information for maintenance personnel, covering specifications, operation theory, complete disassembly instructions, adjustments, and in-depth troubleshooting for the OKIPAGE 14ex Digital LED Printer.

Table of Contents

🛠️ Key Technical and Service Information

• 1. Specifications: Details the system and printer configuration, optional configurations (High Capacity Second Paper Feeder, Multi-Purpose Feeder, RS-232C Interface, DRAM SIMM, Flash SIMM), and performance metrics.

  • Consumables Life:

    • Toner cartridge (Type 5): About 2,000 sheets ¹

       

    • Toner cartridge (Type 8 option): About 4,000 sheets ²

    • Image drum cartridge: 20,000 (continuous printing); 14,000 (3 page/job) ³

• 2. Operation: Explains the Main Control Board, Power Supply/Sensor Board functions, and the detailed electrophotographic process.

  • Electrophoographic Process Voltage Values (High Voltage Power Supply Circuit): 4| Output | Voltage | Application |

    |:—|:—|:—|

    | CH | $-1.3$ KV | Applied to charge roller. |

    | DB | $-265~V/+300~V$ | Applied to developing roller. |

    | SB | $-500~V/0~V$ | Applied to a sponge roller. |

    | TR | $+500~V$ to $+3.5$ KV/$-1100$ V | Applied to a transfer roller (Variable). |

    | CB | $+400~V/+3.5~KV$ | Applied to a cleaning roller. |

  • Fusing Unit Temperature: The heat roller temperature is monitored via a thermistor and regulated based on paper thickness⁵. For example, Tray 1&2 heavy paper is set to $195^{\circ}C$, while manual feed heavy paper is also $195^{\circ}C$⁶.

    3. Disassembly: Provides systematic instructions for removal of every major component, including:

    • Upper Cover Assy ⁷

       

    • LED Head ⁸

    • Fusing Unit (Caution: May be hot) ⁹

    • Disassembly OKIPAGE 14ex fusing unit replacement involves removing 4 screws and lifting the unit¹⁰.

• 4. Adjustments: Details necessary adjustments after replacing components.

  • Maintenance Modes: Includes User, System, and Engine Maintenance Modes, accessible via specific key combinations (e.g., Engine Maintenance: holding ENTER and FORM FEED keys while powering on)¹¹.

     

  • EEPROM Operations: Outlines the procedure for EEPROM upload/download Main Control Board replacement using the Maintenance Utility to preserve customer settings¹².

• 6. Troubleshooting: Features flowcharts for fixing device errors and image quality issues.

  • Cyclical Defect Troubleshooting: The frequency of the defect helps identify the faulty roller13.| Roller | Defect Frequency | Remedy |

    |:—|:—|:—|

    | Image Drum | 3.71″ (94.2mm) | Clean or replace the image drum unit. |

    | Transfer roller | 1.95″ (49.6mm) | Replace the image drum unit. |

    | Heat roller | 2.44″ (62.0mm) | Replace the heat roller. |

  • General Image Problems: Provides remedies for light images, dark background density, black/white vertical streaks, and poor fusing¹⁴.

• Optional Accessories Maintenance: Includes parts lists and troubleshooting for the Multi-Purpose Feeder and High Capacity Second Paper Feeder. The Multi-Purpose Feeder Pulse Motor coil resistance should be checked (approx. $32 \Omega$) if the motor is not turning¹⁵.

🗃️ File Details

• Manual Name: OKIPAGE 14ex LED Page Printer Service Manual

• Models Covered: OKIPAGE 14ex LED Page Printer

• Year: 2000 (Copyright Date)

• Manual PDF Quality: High quality with clear illustrations and text.

• No. of Pages: 348 (Digital page count)