This service manual contains basic information required for after-sales service of the laser printer (hereinafter referred to as ”this machine” or ” the printer”). This information is vital to the service technician in maintaining the high printing quality and performance of the printer. This manual consists of the following chapters: Chapter I : General Features, specifications, etc. Chapter II : Theory of Operation Basic operation of the mechanical system and the electrical system, and their timing. Chapter III : Electrical System Theory of the electronics circuit Chapter IV : Mechanical System Requirements for a suitable location, disassembling and reassembling procedure of mechanical system. Chapter V : Maintenance and Servicing Parts replacement schedule, list of tools, lubricants and cleaners. Chapter VI : Troubleshooting Reference values and adjustment, troubleshooting for image defects, troubleshooting for malfunctions, etc. Appendices : Engine Block Diagram, PCB Circuitry Diagrams, etc.

Chapter I : General Features, specifications, etc. Chapter II : Theory of Operation Basic operation of the mechanical system and the electrical system, and their timing. Chapter III : Electrical System Theory of the electronics circuit Chapter IV : Mechanical System Requirements for a suitable location, disassembling and reassembling procedure of mechanical system. Chapter V : Maintenance and Servicing Parts replacement schedule, list of tools, lubricants and cleaners. Chapter VI : Troubleshooting Reference values and adjustment, troubleshooting for image defects, troubleshooting for malfunctions, etc. Appendices : Engine Block Diagram, PCB Circuitry Diagrams, etc. The second part includes the user guide!