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Describes the purpose and target audience of the maintenance manual.
Outlines the differences between various printer models covered in the manual.
Explains the printer's configuration based on controller and engine units.
Details the hardware parts comprising the printer main unit.
Lists and describes optional components that can be attached to the printer.
Provides detailed specifications of the printer, including type, dimensions, and paper handling.
Details the VCCI label, Serial No. label, and warning labels on the printer.
Explains the step-by-step process of electrophotography in the printer.
Details the paper path and movement during simplex and duplex printing.
Explains the mechanism for detecting toner levels in the printer.
Outlines essential safety precautions and preparations before replacing parts.
Illustrates the main components and their arrangement within the printer.
Provides a structured guide for replacing various printer parts and assemblies.
Explains the different maintenance modes and their functions.
Explains the System Maintenance Mode, restricted to maintenance personnel.
Details the functions and parameters within the Engine Maintenance Mode.
Explains how to set the printer's environment mode (Normal vs. High Temp).
Details the EEPROM initialization procedures for various phenomena.
Explains adjustments needed after replacing specific parts.
Lists parts that should be replaced at specified service intervals.
Provides instructions for cleaning internal printer components.
Details the procedure for cleaning the LED lens array to resolve print quality issues.
Explains how to use the printer's cleaning page function for maintenance.
Outlines general steps for troubleshooting printer issues.
Presents a flowchart for diagnosing printer issues based on LCD messages.
Guides troubleshooting based on specific LCD messages and a flowchart.
Outlines troubleshooting procedures for common printing quality issues.
Provides a block diagram illustrating the printer's internal connections.
Shows the layout of components on various circuit boards.
Lists resistance values for specific units and components.
Details the connector types used for the Centronics parallel interface.
Explains how to configure interface parameters for Centronics modes.
Details the printer-side and cable-side connectors for the USB interface.
Lists the signals and their functions for the USB interface.
Explains the main function of the extended paper feed unit.
Identifies the external parts of the second tray unit with a diagram.
Details how the second tray unit feeds paper to the printer main body.
Lists important precautions to follow before and during part replacement.
Lists the parts and their corresponding replacement procedures for the second tray.
Provides instructions for cleaning paper feed and separation rollers.
Lists general precautions to take before troubleshooting the second tray unit.
Lists LCD status messages and handling for the second tray unit.
Shows the overall connection diagram for the second tray unit.
Introduces the network interface capabilities of the printer.
Lists supported network protocols like TCP/IP, NetBEUI, EtherTalk, etc.
Explains how to configure network settings via the menu or administration tool.
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