This manual describes basic functions, theory of electrical and mechanical      operations, maintenance and repair procedures of the printer. The instructions      and procedures included herein are intended for the experienced repair technicians,      and attention should be given to the precautions on the preceding page            This manual consists of six chapters and Appendix             CHAPTER 1.PRODUCT DESCRIPTIONS      Provides a general overview and specifications of theproduct            CHAPTER 2.OPERATING PRINCIPLES      Describes the theory of electrical and mechanical operations of the product            CHAPTER 3.TROUBLESHOOTING      Describes the step-by-step procedures for the troubleshooting            CHAPTER 4.DISASSEMBLY / ASSEMBLY      Describes the step-by-step procedures for disassembling and assembling      the product            CHAPTER 5.ADJUSTMENT      Provides Epson-approved methods for adjustment            CHAPTER 6.MAINTENANCE      Provides preventive maintenance procedures and the lists of Epson-approved      lubricants and adhesives required for servicing the product             CHAPTER 7.APPENDIX      Provides the following additional information for reference:      • Connector pin assignments      • Electric circuit boards components layout      • Electrical circuit boards schematics      • Exploded diagram & Parts List        PRODUCT DESCRIPTION      FEATURES       SPECIFICATIONS      Physical Specification      Printing Specification      Paper Feeding      Paper Specification       Plain Paper       Envelope      Exclusive paper       Printing Area      Cut Sheet      Envelopes       Ink Cartridge Specification       Black Ink Cartridge       Color Ink Cartridge       Electric Specification       Environmental Condition       Reliability       Safety Approvals       Acoustic Noise      CE Marking      INTERFACE       Parallel Interface (Forward Channel)       Parallel Interface (Reserve Channel)       USB Interface      Prevention Hosts of Data Transfer Time-out      Interface Selection      IEEE1284.4 Protocol       PANEL CONTROL       Indicators (LEDs)      Panel Functions      Printer Condition and Panel Status       Error Status       Printer Initialization            Operating Principles      Overview       Printer Mechanism       Printhead      Printing Process       Printing Method       Carriage Mechanism      Paper Loading/Feeding Mechanism       Paper Loading Mechanism (ASF unit)       Paper Feeding Mechanism       Ink System Mechanism      Capping Mechanism       Pump unit mechanism       Ink Sequence       Electrical Circuit Operating Principles       C417 PSB/PSE board       C418 MAIN/MAIN-B Board       Main Elements       Printhead Driver Circuit      PF Motor (PF/ PUMP/ ASF Motor) Driver Circuit       CR Motor Driver Circuit      Reset Circuit       EEPROM Control Circuit       Sensor Circuit             Troubleshooting      Overview       Troubleshooting with LED Error Indications      and Status Monitor 3 Message      Unit Level Troubleshooting            Disassembly and Assembly      Overview       Precautions       Tools       Screws      Work Completion Check      Disassembly       Upper housing removal       Printhead removal       CR unit removal      CR motor removal       ASF unit removal      PSB/PSE unit removal       Holder shaft unit removal      Circuit board removal       Waste drain ink pad (under the ASF unit) removal       Lower housing removal       Caution regarding Ink system removal, PF roller      unit removal and PF motor removal       Ink system unit removal      (Cap unit, Pump unit & Waste drain ink pad)       PF roller unit removal       PF motor removal            Adjustment      Overview      Required Adjustment            Maintenance      Overview      Cleaning       Service Maintenance      Lubrication    Appendix      Connector Summary      Major Component Unit       EEPROM Address Map      Component Layout       Exploded Diagram       Parts List      Electrical Circuits          FORMAT: High resolution PDF document!      ZIP archive: 11 495 kB     
		 
		
 
        |