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EPSON ACULASER C8500, Service Manual
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your EPSON ACULASER C8500 copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of EPSON ACULASER C8500 photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:
Chapter 1: PRODUCT DESCRIPTIONS
1.1 Features
1.2 Specifications
1.2.1 Basic Specifications
1.2.2 Paper Specifications
1.2.2.1 Paper Types
1.2.2.2 Paper Source Classification
1.2.2.3 Printable Area
1.2.3 Reliability and Durability
1.2.4 Operating Environment
1.2.5 Environmental Conditions for Storage and Transportation and consumables)
1.2.6 Electrical Specifications
1.2.7 Process Specifications
1.2.8 Applicable Standards
1.2.9 Options and Consumable Products
1.2.10 Regularly Replaced Parts
1.2.11 Exterior View and Parts
1.2.12 Controller Specifications
1.2.13 Controller Configuration
1.3 Interface Specifications
1.3.1 Parallel Interface Specifications
1.3.2 Ethernet Interface
1.3.3 Type B Interface
1.4 Control Panel
1.4.1 Appearance and Descriptions
1.4.1.1 LED Description
1.4.2 Button Functions
1.5 Service Functions
1.5.1 Hex Dump Mode
1.5.2 Support Mode
1.5.3 EEPROM Initialization
1.5.4 Panel Setting Value Initialization
1.5.5 Formatting the Flash ROM Module
1.5.6 Program ROM Update
1.5.7 ROM Module Copy
1.5.8 Maintenance Mode
1.5.9 Error Recovery Operation (CPU Reset)
1.6 Panel Setting
1.6.1 Setting Methods
1.6.1.1 OneTouch mode
1.6.1.2 SelecType mode
1.6.2 SelecType Setting Menu List
1.6.3 Details of Menus and Settings
1.6.3.1 Printing Menu
1.6.3.2 Tray Menu
1.6.3.3 Config Menu
1.6.3.4 Setup Menu
1.6.3.5 Support Menu
1.6.3.6 Toner Transfer Menu
1.6.3.7 Maintenance Menu
1.7 RAM Expansion
1.8 Dimensions
1.9 Engine Restrictions
Chapter 2: OPERATING PRINCIPLES
2.1 Print Process
2.1.1 Print Process Overview
2.1.2 Total Print Process Schematic Diagram
2.1.3 Print Process Technical Explanation
2.1.3.1 Electrification
2.1.3.2 Exposure
2.1.3.3 Developing
2.1.3.4 Primary Transfer (Drum --> Belt)
2.1.3.5 Cleaning (Drum)
2.1.3.6 Repeat (Complete Toner Image Forming)
2.1.3.7 Secondary Transfer (Belt --> Paper)
2.1.3.8 Electrical Discharge
2.1.3.9 Cleaning (Belt)
2.1.3.10 Fixing
2.2 Print Data Flow
2.2.1 Data Flow
2.3 Drive Transmission Route
2.3.1 PROCESS DRIVE ASSY
2.3.2 FUSER MOTOR ASSY
2.3.3 P/H MOTOR ASSY
2.3.4 ROTARY MOTOR ASSY
2.3.5 INV MOTOR ASSY (Option Duplex)
2.3.6 Gear Layout
2.3.6.1 Printer
2.3.6.2 Option Duplex
2.4 Paper Feed
2.4.1 Paper Feed Path (When no options are installed)
2.4.2 Paper Feed Path (Option Duplex)
2.4.3 Paper Conveyance Path Layout
2.5 Function of Main Working Parts
2.5.1 Paper Cassette
2.5.2 Paper Feeder
2.5.3 MSI/Paper Transportation I
2.5.4 MSI/Paper Transportation II
2.5.5 Xerographics I
2.5.6 Xerographics II
2.5.7 Development
2.5.8 IBT I
2.5.9 IBT II
2.5.10 Fusing I
2.5.11 Fusing II
2.5.12 Paper Exit
2.5.13 Drive
2.5.14 Electrical
2.5.15 Option Duplex
2.6 Operation Mode
2.7 Control
2.7.1 Paper Size Control
2.7.2 Cassette 2/Cassette 3 paper size control
2.7.3 Paper Supply Unit Selection Control
2.7.4 OHP Front/Back Detection Control
2.7.5 ROS Control
2.7.5.1 Scanner Motor Operation
2.7.5.2 ROS Warm-Up
2.7.5.3 Quantity of Light Control
2.7.6 Process Control
2.7.6.1 Potential Control
2.7.6.2 Toner Concentration Control (PCDC)
2.7.6.3 Toner Concentration Control (ADC)
2.7.6.4 ADC Solenoid Operation
2.7.7 XERO
2.7.7.1 Operation when DRUM CARTRIDGE is Replaced
2.7.7.2 DRUM CARTRIDGE Life Detection Control
2.7.7.3 WASTE TONER BOX Full Detection Control
2.7.8 DEVE
2.7.8.1 Home Position Detection Operation
2.7.8.2 Toner Cartridge Presence Detection Position
2.7.8.3 Toner Cartridge New/Old Detection Position
2.7.8.4 Developing Position
2.7.8.5 Detection Method Accompanying DEVE
2.7.9 IBT Control
2.7.9.1 Primary Transfer (Drum --> Belt)
2.7.9.2 Secondary Transfer (Belt-->Paper)
2.7.9.3 Belt Cleaning
2.7.9.4 IBT-related life detection control
2.7.10 Transfer Layout Control
2.7.11 FUSER Control
2.7.11.1 Fuser Control Method
2.7.11.2 Control for WARM UP Mode
2.7.11.3 READY / LIGHT SLEEP / DEEP SLEEP Modes Control 2-70
2.7.11.4 Control in PRINTING Mode
2.7.11.5 FUSER skidding
2.7.11.6 Prevention of a FUSER NIP scar
2.7.11.7 MAIN FUSER ASSY Life Detection Control
2.8 Controller Operating Principles
Chapter 3: DISASSEMBLY/ASSEMBLY/ADJUSTMENT
3.1 Overview
3.1.1 Precautions for Disassembly, Assembly and Adjustment
3.1.1.1 Precaution for Handling the Lithium Battery
3.1.2 Tools
3.1.3 Items to Check after Assembly
3.2 Disassembly/Assembly Procedures
3.2.1 Exterior View and Part Names
3.2.2 Removing/Replacing the Consumables
3.2.3 Updating the Main Controller Program ROM
3.2.3.1 Updating the ROM using a standard parallel interface
3.2.3.2 Updating by copying from the FLASH ROM module
3.2.3.3 Formatting the FLASH ROM Module
3.2.4 Updating the MCU PWB (Mechanical Controller) Firmware
3.2.5 Cover
3.2.5.1 FRONT COVER ASSY (PL1.1.1) Removal
3.2.5.2 FRONT MID COVER (PL1.1.6) Removal
3.2.5.3 FRONT LOWER COVER (PL1.1.5) Removal
3.2.5.4 TOP COVER ASSY (PL1.1.20) Removal
3.2.5.5 L/H INNER COVER ASSY (PL1.1.10) Removal
3.2.5.6 IBT INNER COVER ASSY (PL1.1.14) Removal
3.2.5.7 R/H INNER COVER ASSY (PL1.1.15) Removal
3.2.5.8 REAR COVER ASSY (PL1.1.30) Removal
3.2.5.9 FILTER ASSY (PL1.1.32) Removal
3.2.5.10 LEFT LOWER COVER (PL1.1.40) Removal
3.2.5.11 RIGHT COVER ASSY (PL1.1.51) Removal
3.2.5.12 OPERATION PANEL (PL1.1.60) Removal
3.2.5.13 RIGHT LOWER COVER (PL1.1.50) Removal
3.2.6 Paper Tray
3.2.6.1 UNIVERSAL CASSETTE (PL2.1.1) Removal
3.2.6.2 FRONT SNUBBER (PL2.1.9) Removal
3.2.6.3 END GUIDE (PL2.1.16), SECTOR GEAR (PL2.1.18) Removal
3.2.7 Paper Feeder
3.2.7.1 TURN IN CHUTE (PL3.1.21) Removal
3.2.7.2 TURN ROLL ASSY (PL3.1.23) Removal
3.2.7.3 FEED ROLL (PL3.1.31) Removal
3.2.7.4 FEED SOLENOID (PL3.1.35) Removal
3.2.7.5 FEED ROLL ASSY (PL3.1.29) Removal
3.2.7.6 SIZE SWITCH ASSY (PL3.1.5) Removal
3.2.7.7 CASSETTE N/P SENSOR ASSY (PL3.1.30) Removal
3.2.7.8 LOW PAPER SENSOR (PL3.1.18) Removal
3.2.7.9 TRAY NO PAPER SENSOR (PL3.1.9) Removal
3.2.8 MSI/Paper Transportation
3.2.8.1 MSI/REGI HIGH ASSY (PL4.1.5) Removal
3.2.8.2 MSI GUIDE SWITCH (PL4.1.18) Removal
3.2.8.3 MSI ASSY (PL4.1.6) Removal
3.2.8.4 MSI BASE ASSY (PL4.1.20) Removal
3.2.8.5 MSI FEED ASSY (PL4.1.30) Removal
3.2.8.6 MAIN P/H FRAME ASSY (PL4.1.40) Removal
3.2.8.7 BOTTOM PLATE SENSOR (PL4.2.10) Removal
3.2.8.8 LIFT UP FRAME ASSY (PL4.2.20) Removal
3.2.8.9 EMPTY SENSOR (PL4.3.5) Removal
3.2.8.10 PITCH SENSOR (PL4.3.6) Removal
3.2.8.11 MSI FEED FRAME ASSY (PL4.3.20) Removal
3.2.8.12 LEVEL SENSOR (PL4.3.23) Removal
3.2.8.13 P/REGI ROLL ASSY (PL4.4.3) Removal
3.2.8.14 PRE REGI CLUTCH ASSY (PL4.4.49) Removal
3.2.8.15 REGI CLUTCH ASSY (PL4.4.5) Removal
3.2.8.16 REGI RUBBER ROLL ASSY (PL4.4.7) Removal
3.2.8.17 REGI METAL ROLL (PL4.4.8) Removal
3.2.8.18 IBT REGI CHUTE (PL4.4.14) Removal
3.2.8.19 REGI SENSOR (PL4.4.24) Removal
3.2.8.20 OHP SENSOR (PL4.4.25) Removal
3.2.9 Xerographics
3.2.9.1 DRUM CARTRIDGE (PL6.1.10) Removal
3.2.9.2 WASTE TONER BOX (PL6.1.12) Removal
3.2.9.3 ROS ASSY (PL6.1.1) Removal
3.2.9.4 ADC SENSOR ASSY (PL6.1.20) Removal
3.2.9.5 XL RAIL ASSY (PL6.1.40) Removal
3.2.9.6 WASTE TONER SENSOR (PL6.1.42) Removal
3.2.9.7 TONER BOX SENSOR (PL6.1.43) Removal
3.2.9.8 ERASE LAMP ASSY (PL6.1.30) Removal
3.2.10 Development
3.2.10.1 Toner Cartridge (PL7.1.1, PL7.1.2, PL7.1.3, PL7.1.4) Removal
3 .2.10.2D EVELOPERA SSY( PL7.1.10,P L7.1.20,P L7.1.30,P L7.1.40)R emoval
3.2.10.3 ROTARY SENSOR (PL7.2.22) Removal
3.2.10.4 ROTARY FRAME ASSY (PL7.2.2) Removal
3.2.10.5 CARTRIDGE SENSOR (PL7.2.26) Removal
3.2.11 IBT
3.2.11.1 TENSION LEVER (PL8.1.21) Removal
3.2.11.2 TRANSFER HIGH ASSY (PL8.1.20) Removal
3.2.11.3 BELT CLEANER ASSY (PL8.1.23) Removal
3.2.11.4 2ND BTR ASSY (PL8.1.22) Removal
3.2.11.5 2ND BTR CAM ASSY (PL8.1.1) Removal
3.2.11.6 AUGER HIGH ASSY (PL8.1.6) Removal
3.2.11.7 IBT BELT ASSY (PL8.2.2) Removal
3.2.11.8 TR0 SENSOR (PL8.2.33) Removal
3.2.11.9 BTR CAM CLUTCH (PL8.3.4) Removal
3.2.12 Fusing
3.2.12.1 FUSER ASSY (PL9.1.1) Removal
3.2.12.2 MAIN FUSER ASSY (PL9.1.2) Removal
3.2.12.3 UPPER GUIDE ASSY (PL9.2.20) Removal
3.2.12.4 FUSER UPPER ASSY (PL9.2.30) Removal
3.2.12.5 H/R HEATER (PL9.2.37) Removal
3.2.12.6 P/R HEATER (PL9.2.38) Removal
3.2.12.7 LOWER GUIDE ASSY (PL9.2.13) Removal
3.2.12.8 FUSER EXIT SENSOR-1 (PL9.2.3) Removal
3.2.12.9 FUSER EXIT SENSOR-2 (PL9.2.4) Removal
3.2.12.10 HEAT ROLL (PL9.2.25) Removal
3.2.12.11 PRESSURE ROLL (PL9.2.10) Removal
3.2.12.12 TEMP
3.2.12.13 EXCHANGE CHUTE (PL9.3.17) Removal
3.2.12.14 EXCHANGE SOLENOID (PL9.3.22) Removal
3.2.12.15 CLEANER CAM SOLENOID (PL9.4.24) Removal
3.2.12.16 CLEANER CAM ASSY (PL9.4.25) Removal
3.2.12.17 EXIT-1 ROLL ASSY (PL9.3.14) Removal
3.2.12.18 FUSER IN SENSOR (PL9.4.4) Removal
3.2.12.19 FUSER CHUTE FAN (PL9.4.10) Removal
3.2.12.20 FUSER BAFFLE ASSY (PL9.2.41) Removal
3.2.13 Paper Exit
3.2.13.1 EXIT TRAY ASSY (PL10.1.10) Removal
3.2.13.2 EXIT UPPER ASSY (PL10.1.2) Removal
3.2.13.3 EXIT LOWER ASSY (PL10.1.1) Removal
3.2.13.4 EXIT-2 ROLL ASSY (PL10.2.5) Removal
3.2.13.5 EXIT-3 ROLL ASSY (PL10.2.6) Removal
3.2.13.6 FUSER FAN-1 (PL10.2.15) Removal
3.2.13.7 TOP EXIT SENSOR (PL10.2.12) Removal
3.2.13.8 EXIT CHUTE SWITCH (PL10.2.13) Removal
3.2.14 Drive
3.2.14.1 P/H DRIVE ASSY (PL11.1.1) Removal
3.2.14.2 FUSER DRIVE ASSY (PL11.1.2) Removal
3.2.14.3 FUSER MOTOR ASSY (PL11.1.4) Removal
3.2.14.4 P/H MOTOR ASSY (Pl11.1.5) Removal
3.2.14.5 DRIVE MOTOR PWB (PL11.1.6) Removal
3.2.14.6 PROCESS DRIVE ASSY (PL11.1.10) Removal
3.2.14.7 ROTARY MOTOR ASSY (PL11.1.20) Removal
3.2.14.8 ROTARY MOTOR DRIVE PWB (PL11.1.21) Removal 3-97
3.2.14.9 DISPENSE CLUTCH ASSY (PL11.1.22) Removal
3.2.14.10 DEVE
3.2.15 Frame
3.2.15.1 DEVE
3.2.16 Electrical
3.2.16.1 LVPS (PL13.1.1) Removal
3.2.16.2 HVPS (PL13.1.2) Removal
3.2.16.3 TOP COVER SWITCH (PL13.1.3) Removal
3.2.16.4 DEVE
3.2.16.5 MCU PWB (PL13.2.1) Removal
3.2.16.6 FRONT COVER SWITCH R (PL13.2.3) Removal
3.2.16.7 FRONT COVER SWITCH L (PL13.2.4) Removal
3.2.16.8 ENVIRONMENT SENSOR (PL13.2.5) Removal
3.2.17 Controller
3.2.17.1 CONTROLLER PWB (PL14.1.10) Removal
3.2.17.2 CONTROLLER FAN (PL14.1.2) Removal
3.2.17.3 CONT
3.2.17.4 Lithium Battery Removal
3.3 Adjustment
3.3.1 NIP Pressure of the MAIN FUSER ASSY
3.3.2 Development
Chapter 4: DIAGNOSTICS
4.1 Diagnostics by the Diagnostic Commander
4.1.1 Overview
4.1.2 Method of Printing Test Prints
4.1.3 Test Print Patterns
4.2 Diagnostics Commander
4.2.1 Overview
4.2.1.1 Configuration
4.2.1.2 Overview of the Diagnostic Commander
4.2.1.3 Overview of the DIAG
4.2.2 Preparation
4.2.2.1 Personal Computer
4.2.2.2 Installation of the Diagnostics Commander
4.2.2.3 Uninstalling the Diagnostics Commander
4.2.2.4 Connection of the diagnostics tools (MCU PWB)
4.2.2.5 Connection of the diagnostics tools (Option Connector)
4.2.3 Commands / Statuses
4.2.3.1 Overview of Commands and Statuses
4.2.3.2 Data Format
4.2.3.3 Categories of Commands / Statuses
4.2.4 Operating the Diagnostics Commander
4.2.4.1 Starting Up the Diagnostics Commander
4.2.4.2 Communications Connection
4.2.4.3 Log Display
4.2.4.4 [Manual] Tab Operation
4.2.4.5 [Auto] Tab Procedures
4.2.5 Diagnostics Execution
4.2.5.1 Diagnostics Execution Procedures
4.2.5.2 Diagnostics Types
4.2.5.3 Test Print
4.2.5.4 Digital Input Test
4.2.5.5 Digital Input Test Device Code
4.2.5.6 Digital Output Test
4.2.5.7 Digital Output Test Device Code
4.2.5.8 Analog Input Test
4.2.5.9 Analog Input Test Device Code
4.2.5.10 Analog Output Test
4.2.5.11 Analog Output Test Device Code
4.2.5.12 EEPROM Read
4.2.5.13 EEPROM Write
4.2.5.14 EEPROM Initialize
4.2.5.15 NVM List
4.2.6 Count Accumulation Value Read/Write
4.2.6.1 Read
4.2.6.2 Write
4.2.7 Command/Status List
4.2.7.1 Paper, Media & Output Control
4.2.7.2 Printing/Status Control
4.2.7.3 Parameter Control
4.2.7.4 Diagnostics Control
4.2.8 Error / Status Code
Chapter 5: TROUBLESHOOTING
5.1 Overview
5.1.1 Troubleshooting Procedure
5.1.2 Preliminary Checks
5.1.3 1.3 Precautions When Performing Work
5.1.4 Self-Diagnostic Function by LCD Message
5.1.4.1 Status Message
5.1.4.2 Error Message
5.1.4.3 Warning Message
5.1.4.4 Service-Call Error Messages
5.2 Level 1 FIP (Fault Isolation Procedure)
5.2.1 Precautions When Using FIP (Fault Isolation Procedure)
5.2.2 FIP Entry Chart
5.3 Level 2 FIP (Fault Isolation Procedure
5.4 Picture Image Trouble
5.4.1 Picture Image Troubleshooting Entry Chart
5.5 Picture Quality FIP
Chapter 6: MAINTENANCE
6.1 About On-Site Servicing
6.1.1 On-site Service Flow
6.1.2 Description of the On-site Service
6.2 Maintenance Menu
6.2.1 Entry to the Maintenance Menu
6.2.2 Engine Status Sheet
6.3 Consumable Replacement
6.3.1 TONER CARTRIDGE Replacement
6.3.2 PHOTOCONDUCTOR UNIT Replacement
6.3.3 WASTE TONER BOX Replacement
6.4 Regularly Replaced Parts Replacement
6.5 Main After-Sales Parts Replacement
6.6 Installation
Chapter 7: APPENDIX
7.1 Overview
7.2 Parts List and Exploded Diagrams
7.2.1 How to Use the Parts List and Exploded Diagrams
7.2.2 Parts List Tables
7.2.3 Exploded Diagrams
7.3 Wiring Diagrams
7.3.1 P/J Locations
7.3.2 Plug and Jack (P/J) Location Tables
7.4 Wiring Diagrams and Signal Information
7.4.1 Overall Wiring Connection Diagram
7.4.2 Wiring and Signal Descriptions between Components
7.4.2.1 Configuration
7.4.3 Notation on the Diagrams for the Wiring and Signal Descriptions between Components
7.5 Component Layout
7.6 Circuit Diagrams
Numbers of pages: 570.
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