Epson AcuLaser C8500 Service Manual

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Color Laser Page Printer

EPSON AcuLaser C8500

Notice

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All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

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All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.

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The contents of this manual are subject to change without notice.

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All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.

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The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

General Notice: Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their

respective owners. EPSON disclaims any and all rights in those marks.

PRECAUTIONS

Precautionary notations throughout the text are categorized relative to 1)Personal injury and 2) damage to equipment.

DANGER

WARNING

The precautionary measures itemized below should always be observed when performing repair/maintenance procedures.

Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by DANGER Headings.

Signals a precaution which, if ignored, could result in damage to equipment.

DANGER

1. ALWAYS DISCONNECT THE PRODUCT FROM THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES.

2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK.

3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.

WARNING

1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN.

2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/ RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.

3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS.

4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS.

5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.

About this manual

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CAUTIO N

NOTE

This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of the EPSON AcuLaser C8500. 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.

Manual Configuration

This manual consists of six chapters and Appendix.

CHAPTER 1. PRODUCT DESCRIPTIONS

Provides a general overview and specifications of the product.

CHAPTER 2. OPERATING PRINCIPLES

Describes the theory of electrical and mechanical operations of the product.

CHAPTER 3. DISASSEMBLY / ASSEMBLY AND ADJUSTMENT

Describes the step-by-step procedures for disassembling/assembling and adjusting the product.

CHAPTER 4. DIAGNOSTICS

Provides Epson-approved methods for diagnostics.

CHAPTER 5. TROUBLESHOOTING

Provides the step-by-step procedures for troubleshooting.

CHAPTER 6. MAINTENANCE

Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product.

APPENDIX

Provides the following additional information for

reference:

• Connector pin assignments

• Electric circuit boards components layout

• Exploded diagram

• Electrical circuit boards schematics

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Be aware of all symbols when they are used, and always read NOTE, CAUTION, or WARNING messages.

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in injury or loss of life.

Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in damage to, or destruction of, equipment.

CHECK

PO INT

May indicate an operating or maintenance procedure,

practice or condition that is necessary to accomplish a task efficiently. It may also provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.

Abbreviation

ADC = Automatic Density Control AG = Analog Ground ASSY = Assembly AUX. = Auxiliary B/W = Black and White BCR = Bias Charge Roll Bk = Black BK = Black BTR = Bias Transfer Roll BUR = Back Up Roll C = Cyan CART. = Cartridge CCW = Counterclockwise CL. = Clutch CLN = Cleaning (or Cleaner) CLK = Clock CONT. = Controller CR = Charge Roll CRU = Customer Replaceable Unit CRUM = CRU Monitor CW = Clockwise DB = Developing Bias DEVE. = Developer DIAG. = Diagnostic dpi = dots per inch DTS = Detach Saw ELEC. = Electric EP = Electrophotography

FDR = Feeder FG = Frame Ground FRU = Field Replaceable Unit GND = Ground H/R = Heat Roll Hex = Hexadecimal HVPS = High Voltage Power Supply I/F = Interface IBT = Intermediate Belt Transfer ID = Image Density (or Identification) L = Left L/H = Left Hand L/P = Low Paper LD = Laser Diode LEF = Long Edge Feed LVPS = Low Voltage Power Supply M = Magenta MAG. = Magnetic MCU = Machine Control Unit MECH. = Mechanical MOT. = Motor MSI = Multi Sheet Inserter N/F = Normal Force N/P = No Paper NVM = Non Volatile Memory O/H = Option Hinge OHP = Overhead Projector (In this manual, OHP means OHP film)

OPC = Organic Photo Conductor P/H = Paper Handling P/R = Pressure Roll PCDC = Pixel Count Dispense Control Pixel = Picture Cell PPM = Prints Per Minute PV = Print Volume PWB = Printed Wiring Board R = Right R/H = Right Hand REGI. = Registration ROS = Raster Output Scanner RTN = Return SEF = Short Edge Feed SG = Signal Ground SNR = Sensor SOL. = Solenoid SOS = Start Of Scan SPI = Scans Per Inch SYNC. = Synchronous TC = Toner Concentration TEMP. = Temperature TR = Transfer TRANS. = Transport WDD = Wide Range Dynamic Damper XERO. = Xerographic Y = Yellow YMCBk = Yellow, Magenta, Cyan, Black

Safety Information

To prevent accidents during a maintenance procedure, strictly observe the Warnings and Cautions. Do not do anything that is dangerous or not within the scope of this document. Do not do anything that is dangerous even if not specifically described in this manual. In addition to the descriptions below and those given in this manual, there are many situations and circumstances that are dangerous. Be aware of these when you are working with the printer.

Power Supply

Before starting any service procedure, switch off the printer power and unplug the power cord from the wall outlet. If you must service the printer when the power is applied, be aware of the potential for electrical shock and do all tasks by following the procedures in this manual.

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Do not touch any live part unless you are instructed to do so by a service procedure. The LVPS power supply switch/inlet part is live even when the power switch has been turned off. Do not touch any live part.

Mechanical Components

Safety Components

If you service a driving assembly (e.g., gears), first turn off the power and unplug the power cord. Then manually rotate the assembly.

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Do not touch the driving part (e.g., gears) while the assembly (printer) is being driven.

The printer is equipped with safety components (e.g., interlock switches, fuses, thermostat) and safety switches for protecting users and service personnel from injury and the equipment from damage.

The printer has two interlock switches, two safety switches and two interlock connectors that serve as the main safety mechanism.

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Front Cover Switch R This switch is turned off when the Front Cover Assembly is opened. It cuts off the power supply (24VDC, 5VDC-LD) from the power supply unit to stop all operations and disconnects the output (5VDCLD) circuit from the power supply and stops the laser beam emission. This switch consists of the following two switches:

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A switch that cuts off the power supply (24VDC, 5VDC-LD) to the control circuits and related parts.

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A switch that directly cuts off the power supply circuit (5VDC-LD) to the laser beam output circuit.

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Front Cover Switch L This is a safety switch. This switch is turned off when the Front Cover Assembly is opened, causing the printer without control units to stop operating.

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Top Cover Switch This is an interlock switch that directly cuts off the power supply (5VDC-LD) circuit to the laser beam output circuit. This switch is turned off when the Top Cover Assembly is removed, cutting off the output (5VDC-LD) circuit from the power supply unit and stopping the laser beam emission.

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Exit Chute Switch This switch is a safety switch. This switch is turned off when the Exit Upper Assembly (the cover on the upper left side of the printer) is opened.

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P/J91 (Connector that connects the Main Harness Assembly and Registration Harness Assembly) This is an interlock connector that cuts off the power supply (24VDC, 5VDC-LD) to the control circuit and related parts. This connector is disconnected when the Main P/H Assembly (pullout type unit on the right side of the printer) is pulled out, cutting off the output (24VDC, 5VDC-LD) from the power supply and stopping the printer operation without control units.

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P/J71 (Connector that connects the Fuser Connector and Fuser Harness Assembly) This is an interlock connector that cuts off the power supply (24VDC, 5VDC-LD) to the control circuit and related parts. This connector is disconnected when the Fuser Assembly (pull-out type unit on the left side of the printer) is pulled out, cutting off the output (24VDC, 5VDC-LD) from the power supply and stopping the printer operation without control units.

Laser Beam

The printer has two interlock switches: the Front Cover Switch R and the Top Cover Switch. The purpose of these switches is to turn off the laser beam emission if any of the printer covers have been opened; this protects the user or service personnel from exposure to the laser beam from the ROS Assembly.

NOTE: The laser beam has a narrower frequency band and more

coherent phases than any other light (sunlight, electric light). It has excellent monochromaticity and convergence. A thin laser beam reaches long distances. Because of its convergence characteristic, the laser beam converges into one point, causing high density and high temperature. A laser beam is harmful to the human body.

A laser beam may be emitted during a maintenance operation. Do not turn on these interlock switches simultaneously under any circumstances except in a normal operation.

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Do not expose yourself to the laser beam to prevent injury (blindness).

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Do not open the cover that has the laser beam warning label.

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If you disassemble or assemble the printer, turn off the power.

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If you need to work on the printer with power applied, strictly follow the instructions in this manual.

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If you have to activate the printer while pressing the Front Cover Switch R by hand or with a tool, remove the Top Cover. (Do not turn on these interlock switches simultaneously under any circumstances except in a normal operation.)

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Understand how the laser beam functions and take maximum precautions not to injure yourself or anyone around you.

NOTE: The laser beam in this printer is invisible.

High Temperature Assembly

Parts

To prevent you from becoming injured or burned, do the following: Before working with a high temperature Assembly (e.g., Fuser Assembly), turn off the power, unplug the power cord and wait until it cools down.

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The high temperature Assembly is very hot immediately after any printer operations. Wait at least 40 minutes before you start working on the printer.

To prevent you from becoming injured, keep the following in mind:

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When handling heavy parts (including the printer itself), use good posture to protect your back whenever you lift, move or place parts.

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Be careful not to injure yourself with the sharp edges of the parts.

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Do not work with wet or oily hands-you may drop a part or injure yourself. Dry your hands first.

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When pulling out a part (including a harness), do not use too much force. Pull out the part carefully and slowly step by step.

Do not lift, move or place heavy parts in a body posture that is likely to cause injury to yourself or cause the part to drop.

Consumables

Improper Printer Use

Some parts may cause a particulate explosion or fire if handled improperly. Do not handle these parts near fire or throw into a fire. Some materials (e.g., Developer or Fuser Oil) may cause bodily injury. Do not swallow or inhale these materials or allow them to come in contact with the eyes. Help to protect those around you and follow the prohibitions against swallowing or inhaling those materials. Be careful to protect the eyes at all times. Place a sheet inside or under the printer so that the floor or workbench is protected. If the Developer or Fuser Oil gets on your clothing, dry it with a cloth and wash with clean water.

NOTE: The printer has the following consumable parts:

• Drum Cartridge • Waste Toner Box

• Oil Roll Assembly • Toner Cartridge Y

• Toner Cartridge M • Toner Cartridge C

• Toner Cartridge Bk

Modifying, revising, tampering with the printer, especially to the safety mechanism, is strictly prohibited in all circumstances.

Manual Contents

Chapter 1 Product Descriptions Chapter 2 Operating Principles Chapter 3 Disassembly and Assembly / Adjustment Chapter 4 Diagnostics Chapter 5 Troubleshooting Chapter 6 Maintenance Appendix

Revision Status

Revision Date of Issue Description

A July 10th, 2000 First issue B July 18th, 2000 All revised parts are indicated with bold bars.

Chapter 1: Further information on 1.5.2“Support Mode” has been added. Chapter 5: A LCD/ warning message “Worn Fuser” has been added; In 5.1.4.4“Service-Call Error Messages”, FIPs are added to

the relating tables and some error messages are changed.

EPSON AcuLaser C8500 Revision B

Chapter 1 PRODUCT DESCRIPTIONS

1.1 Features

1.2 Specifications

1.2.1 Basic Specifications ................................................................ 1-3

1.2.2 Paper Specifications .............................................................. 1-11

1.2.2.1 Paper Types ................................................................... 1-11

1.2.2.2 Paper Source Classification ........................................... 1-11

1.2.2.3 Printable Area ................................................................. 1-12

1.2.3 Reliability and Durability ........................................................ 1-14

1.2.4 Operating Environment ......................................................... 1-16

1.2.5 Environmental Conditions for Storage and Transportation and consumables) 1-17

1.2.6 Electrical Specifications ......................................................... 1-18

1.2.7 Process Specifications .......................................................... 1-19

1.2.8 Applicable Standards ............................................................ 1-19

1.2.9 Options and Consumable Products ....................................... 1-20

1.2.10 Regularly Replaced Parts .................................................... 1-22

1.2.11 Exterior View and Parts ....................................................... 1-23

1.2.12 Controller Specifications ...................................................... 1-26

1.2.13 Controller Configuration ...................................................... 1-27

1.3 Interface Specifications

1.3.1 Parallel Interface Specifications ............................................ 1-28

1.3.2 Ethernet Interface .................................................................. 1-30

1.3.3 Type B Interface .................................................................... 1-31

1.4 Control Panel

1.4.1 Appearance and Descriptions ............................................... 1-32

1.4.1.1 LED Description ............................................................. 1-34

1.4.2 Button Functions ................................................................... 1-34

1.5 Service Functions

1.5.1 Hex Dump Mode ................................................................... 1-36

1.5.2 Support Mode ........................................................................ 1-36

1.5.3 EEPROM Initialization ........................................................... 1-36

1.5.4 Panel Setting Value Initialization ........................................... 1-37

1.5.5 Formatting the Flash ROM Module ....................................... 1-37

1.5.6 Program ROM Update ........................................................... 1-37

1.5.7 ROM Module Copy ................................................................ 1-37

1.5.8 Maintenance Mode ................................................................ 1-37

1.5.9 Error Recovery Operation (CPU Reset) ................................ 1-37

1.6 Panel Setting

.................................................................................................... 1-2

.......................................................................................... 1-3

...................................................................... 1-28

......................................................................................... 1-32

................................................................................ 1-36

.......................................................................................... 1-38

1.6.1 Setting Methods .................................................................... 1-38

1.6.1.1 OneTouch mode ............................................................. 1-38

1.6.1.2 SelecType mode ............................................................ 1-39

1.6.2 SelecType Setting Menu List ................................................ 1-39

1.6.3 Details of Menus and Settings .............................................. 1-46

1.6.3.1 Printing Menu ................................................................. 1-46

1.6.3.2 Tray Menu ...................................................................... 1-46

1.6.3.3 Config Menu ................................................................... 1-47

1.6.3.4 Setup Menu .................................................................... 1-47

1.6.3.5 Support Menu ................................................................. 1-48

1.6.3.6 Toner Transfer Menu ...................................................... 1-48

1.6.3.7 Maintenance Menu ......................................................... 1-49

1.7 RAM Expansion

1.8 Dimensions

1.9 Engine Restrictions

..................................................................................... 1-51

............................................................................................. 1-51

.............................................................................. 1-52

Chapter 2 Operating Principles

2.1 Print Process

2.1.1 Print Process Overview ........................................................... 2-2

2.1.2 Total Print Process Schematic Diagram ................................. 2-3

2.1.3 Print Process Technical Explanation ....................................... 2-4

2.1.3.1 Electrification .................................................................... 2-4

2.1.3.2 Exposure .......................................................................... 2-5

2.1.3.3 Developing ....................................................................... 2-6

2.1.3.4 Primary Transfer (Drum --> Belt) ...................................... 2-8

2.1.3.5 Cleaning (Drum) ............................................................... 2-9

2.1.3.6 Repeat (Complete Toner Image Forming) ..................... 2-10

2.1.3.7 Secondary Transfer (Belt --> Paper) .............................. 2-11

2.1.3.8 Electrical Discharge ........................................................ 2-12

2.1.3.9 Cleaning (Belt) ................................................................ 2-13

2.1.3.10 Fixing ............................................................................ 2-13

2.2 Print Data Flow

2.2.1 Data Flow .............................................................................. 2-14

2.3 Drive Transmission Route

2.3.1 PROCESS DRIVE ASSY ...................................................... 2-15

2.3.2 FUSER MOTOR ASSY ......................................................... 2-15

2.3.3 P/H MOTOR ASSY ............................................................... 2-16

2.3.4 ROTARY MOTOR ASSY ...................................................... 2-16

............................................................................................ 2-2

....................................................................................... 2-14

.................................................................. 2-15

EPSON AcuLaser C8500 Revision B

2.3.5 INV MOTOR ASSY (Option Duplex) ..................................... 2-17

2.3.6 Gear Layout ........................................................................... 2-18

2.3.6.1 Printer ............................................................................. 2-18

2.3.6.2 Option Duplex ................................................................. 2-19

2.4 Paper Feed

2.4.1 Paper Feed Path (When no options are installed) ................ 2-20

2.4.2 Paper Feed Path (Option Duplex) ......................................... 2-21

2.4.3 Paper Conveyance Path Layout ............................................ 2-22

2.5 Function of Main Working Parts

2.5.1 Paper Cassette ...................................................................... 2-23

2.5.2 Paper Feeder ........................................................................ 2-24

2.5.3 MSI/Paper Transportation I ................................................... 2-26

2.5.4 MSI/Paper Transportation II .................................................. 2-27

2.5.5 Xerographics I ....................................................................... 2-29

2.5.6 Xerographics II ...................................................................... 2-30

2.5.7 Development ......................................................................... 2-32

2.5.8 IBT I ....................................................................................... 2-34

2.5.9 IBT II ...................................................................................... 2-35

2.5.10 Fusing I ................................................................................ 2-37

2.5.11 Fusing II ............................................................................... 2-38

2.5.12 Paper Exit ............................................................................ 2-39

2.5.13 Drive .................................................................................... 2-40

2.5.14 Electrical .............................................................................. 2-42

2.5.15 Option Duplex ...................................................................... 2-44

2.6 Operation Mode

2.7 Control

2.7.1 Paper Size Control ................................................................ 2-49

2.7.2 Cassette 2/Cassette 3 paper size control .............................. 2-50

2.7.3 Paper Supply Unit Selection Control ..................................... 2-51

2.7.4 OHP Front/Back Detection Control ....................................... 2-51

2.7.5 ROS Control .......................................................................... 2-52

2.7.5.1 Scanner Motor Operation ............................................... 2-52

2.7.5.2 ROS Warm-Up ............................................................... 2-52

2.7.5.3 Quantity of Light Control ................................................. 2-52

2.7.6 Process Control ..................................................................... 2-53

2.7.6.1 Potential Control ............................................................. 2-53

2.7.6.2 Toner Concentration Control (PCDC) ............................. 2-54

2.7.6.3 Toner Concentration Control (ADC) ............................... 2-54

2.7.6.4 ADC Solenoid Operation ................................................ 2-55

............................................................................................. 2-20

....................................................... 2-23

.................................................................................... 2-48

..................................................................................................... 2-49

2.7.7 XERO. Control ...................................................................... 2-56

2.7.7.1 Operation when DRUM CARTRIDGE is Replaced ........ 2-56

2.7.7.2 DRUM CARTRIDGE Life Detection Control ................... 2-56

2.7.7.3 WASTE TONER BOX Full Detection Control ................. 2-57

2.7.8 DEVE. Control ....................................................................... 2-59

2.7.8.1 Home Position Detection Operation ............................... 2-59

2.7.8.2 Toner Cartridge Presence Detection Position ................ 2-60

2.7.8.3 Toner Cartridge New/Old Detection Position ................. 2-60

2.7.8.4 Developing Position ........................................................ 2-60

2.7.8.5 Detection Method Accompanying DEVE. Control .......... 2-61

2.7.9 IBT Control ............................................................................ 2-63

2.7.9.1 Primary Transfer (Drum --> Belt) .................................... 2-63

2.7.9.2 Secondary Transfer (Belt-->Paper) ................................ 2-64

2.7.9.3 Belt Cleaning .................................................................. 2-66

2.7.9.4 IBT-related life detection control ..................................... 2-67

2.7.10 Transfer Layout Control ...................................................... 2-68

2.7.11 FUSER Control ................................................................... 2-70

2.7.11.1 Fuser Control Method ................................................... 2-70

2.7.11.2 Control for WARM UP Mode ........................................ 2-70

2.7.11.3 READY / LIGHT SLEEP / DEEP SLEEP Modes Control 2-70

2.7.11.4 Control in PRINTING Mode .......................................... 2-70

2.7.11.5 FUSER skidding ........................................................... 2-71

2.7.11.6 Prevention of a FUSER NIP scar ................................. 2-71

2.7.11.7 MAIN FUSER ASSY Life Detection Control ................. 2-71

2.8 Controller Operating Principles

........................................................ 2-72

Chapter 3 Disassembly/Assembly/Adjustment

3.1 Overview

3.1.1 Precautions for Disassembly, Assembly and Adjustment ....... 3-2

3.1.1.1 Precaution for Handling the Lithium Battery ..................... 3-2

3.1.2 Tools ....................................................................................... 3-3

3.1.3 Items to Check after Assembly ............................................... 3-3

3.2 Disassembly/Assembly Procedures

3.2.1 Exterior View and Part Names ................................................ 3-5

3.2.2 Removing/Replacing the Consumables .................................. 3-6

3.2.3 Updating the Main Controller Program ROM .......................... 3-6

3.2.3.1 Updating the ROM using a standard parallel interface ..... 3-6

3.2.3.2 Updating by copying from the FLASH ROM module ........ 3-7

3.2.3.3 Formatting the FLASH ROM Module ............................... 3-8

.................................................................................................... 3-2

.................................................. 3-3

EPSON AcuLaser C8500 Revision B

3.2.4 Updating the MCU PWB (Mechanical Controller) Firmware ... 3-9

3.2.5 Cover ..................................................................................... 3-10

3.2.5.1 FRONT COVER ASSY (PL1.1.1) Removal .................... 3-10

3.2.5.2 FRONT MID COVER (PL1.1.6) Removal ....................... 3-10

3.2.5.3 FRONT LOWER COVER (PL1.1.5) Removal ................ 3-11

3.2.5.4 TOP COVER ASSY (PL1.1.20) Removal ....................... 3-12

3.2.5.5 L/H INNER COVER ASSY (PL1.1.10) Removal ............ 3-13

3.2.5.6 IBT INNER COVER ASSY (PL1.1.14) Removal ............ 3-14

3.2.5.7 R/H INNER COVER ASSY (PL1.1.15) Removal ............ 3-15

3.2.5.8 REAR COVER ASSY (PL1.1.30) Removal .................... 3-16

3.2.5.9 FILTER ASSY (PL1.1.32) Removal ............................... 3-17

3.2.5.10 LEFT LOWER COVER (PL1.1.40) Removal ................ 3-17

3.2.5.11 RIGHT COVER ASSY (PL1.1.51) Removal ................. 3-18

3.2.5.12 OPERATION PANEL (PL1.1.60) Removal ................... 3-18

3.2.5.13 RIGHT LOWER COVER (PL1.1.50) Removal ............. 3-19

3.2.6 Paper Tray ............................................................................. 3-20

3.2.6.1 UNIVERSAL CASSETTE (PL2.1.1) Removal ................ 3-20

3.2.6.2 FRONT SNUBBER (PL2.1.9) Removal .......................... 3-21

3.2.6.3 END GUIDE (PL2.1.16), SECTOR GEAR (PL2.1.18) Removal 3-22

3.2.7 Paper Feeder ........................................................................ 3-24

3.2.7.1 TURN IN CHUTE (PL3.1.21) Removal ........................... 3-24

3.2.7.2 TURN ROLL ASSY (PL3.1.23) Removal ........................ 3-26

3.2.7.3 FEED ROLL (PL3.1.31) Removal .................................. 3-27

3.2.7.4 FEED SOLENOID (PL3.1.35) Removal ......................... 3-28

3.2.7.5 FEED ROLL ASSY (PL3.1.29) Removal ........................ 3-29

3.2.7.6 SIZE SWITCH ASSY (PL3.1.5) Removal ....................... 3-30

3.2.7.7 CASSETTE N/P SENSOR ASSY (PL3.1.30) Removal .. 3-31

3.2.7.8 LOW PAPER SENSOR (PL3.1.18) Removal ................. 3-32

3.2.7.9 TRAY NO PAPER SENSOR (PL3.1.9) Removal ........... 3-32

3.2.8 MSI/Paper Transportation ..................................................... 3-33

3.2.8.1 MSI/REGI HIGH ASSY (PL4.1.5) Removal .................... 3-33

3.2.8.2 MSI GUIDE SWITCH (PL4.1.18) Removal ..................... 3-33

3.2.8.3 MSI ASSY (PL4.1.6) Removal ....................................... 3-34

3.2.8.4 MSI BASE ASSY (PL4.1.20) Removal ........................... 3-35

3.2.8.5 MSI FEED ASSY (PL4.1.30) Removal ........................... 3-35

3.2.8.6 MAIN P/H FRAME ASSY (PL4.1.40) Removal .............. 3-36

3.2.8.7 BOTTOM PLATE SENSOR (PL4.2.10) Removal ........... 3-36

3.2.8.8 LIFT UP FRAME ASSY (PL4.2.20) Removal ................. 3-37

3.2.8.9 EMPTY SENSOR (PL4.3.5) Removal ............................ 3-37

3.2.8.10 PITCH SENSOR (PL4.3.6) Removal ........................... 3-38

3.2.8.11 MSI FEED FRAME ASSY (PL4.3.20) Removal ........... 3-38

3.2.8.12 LEVEL SENSOR (PL4.3.23) Removal ......................... 3-39

3.2.8.13 P/REGI ROLL ASSY (PL4.4.3) Removal ..................... 3-40

3.2.8.14 PRE REGI CLUTCH ASSY (PL4.4.49) Removal ......... 3-40

3.2.8.15 REGI CLUTCH ASSY (PL4.4.5) Removal ................... 3-41

3.2.8.16 REGI RUBBER ROLL ASSY (PL4.4.7) Removal ......... 3-42

3.2.8.17 REGI METAL ROLL (PL4.4.8) Removal ...................... 3-43

3.2.8.18 IBT REGI CHUTE (PL4.4.14) Removal ........................ 3-44

3.2.8.19 REGI SENSOR (PL4.4.24) Removal ........................... 3-45

3.2.8.20 OHP SENSOR (PL4.4.25) Removal ............................ 3-46

3.2.9 Xerographics ......................................................................... 3-47

3.2.9.1 DRUM CARTRIDGE (PL6.1.10) Removal ..................... 3-47

3.2.9.2 WASTE TONER BOX (PL6.1.12) Removal ................... 3-48

3.2.9.3 ROS ASSY (PL6.1.1) Removal ...................................... 3-49

3.2.9.4 ADC SENSOR ASSY (PL6.1.20) Removal .................... 3-50

3.2.9.5 XL RAIL ASSY (PL6.1.40) Removal .............................. 3-51

3.2.9.6 WASTE TONER SENSOR (PL6.1.42) Removal ............ 3-52

3.2.9.7 TONER BOX SENSOR (PL6.1.43) Removal ................. 3-52

3.2.9.8 ERASE LAMP ASSY (PL6.1.30) Removal ..................... 3-53

3.2.10 Development ....................................................................... 3-54

3.2.10.1 Toner Cartridge (PL7.1.1, PL7.1.2, PL7.1.3, PL7.1.4) Removal 3-54

3.2.10.2 DEVELOPER ASSY (PL7.1.10, PL7.1.20, PL7.1.30, PL7.1.40) Removal 3-55

3.2.10.3 ROTARY SENSOR (PL7.2.22) Removal ..................... 3-57

3.2.10.4 ROTARY FRAME ASSY (PL7.2.2) Removal ............... 3-58

3.2.10.5 CARTRIDGE SENSOR (PL7.2.26) Removal ............... 3-60

3.2.11 IBT ....................................................................................... 3-61

3.2.11.1 TENSION LEVER (PL8.1.21) Removal ........................ 3-61

3.2.11.2 TRANSFER HIGH ASSY (PL8.1.20) Removal ............ 3-62

3.2.11.3 BELT CLEANER ASSY (PL8.1.23) Removal ............... 3-63

3.2.11.4 2ND BTR ASSY (PL8.1.22) Removal .......................... 3-64

3.2.11.5 2ND BTR CAM ASSY (PL8.1.1) Removal ................... 3-65

3.2.11.6 AUGER HIGH ASSY (PL8.1.6) Removal ..................... 3-66

3.2.11.7 IBT BELT ASSY (PL8.2.2) Removal ............................ 3-67

3.2.11.8 TR0 SENSOR (PL8.2.33) Removal ............................. 3-69

3.2.11.9 BTR CAM CLUTCH (PL8.3.4) Removal ....................... 3-69

3.2.12 Fusing ................................................................................. 3-70

3.2.12.1 FUSER ASSY (PL9.1.1) Removal ................................ 3-70

EPSON AcuLaser C8500 Revision B

3.2.12.2 MAIN FUSER ASSY (PL9.1.2) Removal ...................... 3-71

3.2.12.3 UPPER GUIDE ASSY (PL9.2.20) Removal ................. 3-72

3.2.12.4 FUSER UPPER ASSY (PL9.2.30) Removal ................ 3-73

3.2.12.5 H/R HEATER (PL9.2.37) Removal ............................... 3-74

3.2.12.6 P/R HEATER (PL9.2.38) Removal ............................... 3-75

3.2.12.7 LOWER GUIDE ASSY (PL9.2.13) Removal ................ 3-76

3.2.12.8 FUSER EXIT SENSOR-1 (PL9.2.3) Removal .............. 3-76

3.2.12.9 FUSER EXIT SENSOR-2 (PL9.2.4) Removal .............. 3-77

3.2.12.10 HEAT ROLL (PL9.2.25) Removal .............................. 3-78

3.2.12.11 PRESSURE ROLL (PL9.2.10) Removal .................... 3-79

3.2.12.12 TEMP. SENSOR ASSY (PL9.2.6) Removal ............... 3-80

3.2.12.13 EXCHANGE CHUTE (PL9.3.17) Removal ................. 3-81

3.2.12.14 EXCHANGE SOLENOID (PL9.3.22) Removal ........... 3-82

3.2.12.15 CLEANER CAM SOLENOID (PL9.4.24) Removal ..... 3-83

3.2.12.16 CLEANER CAM ASSY (PL9.4.25) Removal .............. 3-84

3.2.12.17 EXIT-1 ROLL ASSY (PL9.3.14) Removal .................. 3-85

3.2.12.18 FUSER IN SENSOR (PL9.4.4) Removal .................... 3-86

3.2.12.19 FUSER CHUTE FAN (PL9.4.10) Removal ................. 3-87

3.2.12.20 FUSER BAFFLE ASSY (PL9.2.41) Removal ............. 3-88

3.2.13 Paper Exit ............................................................................ 3-88

3.2.13.1 EXIT TRAY ASSY (PL10.1.10) Removal ..................... 3-89

3.2.13.2 EXIT UPPER ASSY (PL10.1.2) Removal ..................... 3-89

3.2.13.3 EXIT LOWER ASSY (PL10.1.1) Removal .................... 3-90

3.2.13.4 EXIT-2 ROLL ASSY (PL10.2.5) Removal .................... 3-90

3.2.13.5 EXIT-3 ROLL ASSY (PL10.2.6) Removal .................... 3-91

3.2.13.6 FUSER FAN-1 (PL10.2.15) Removal ........................... 3-91

3.2.13.7 TOP EXIT SENSOR (PL10.2.12) Removal .................. 3-92

3.2.13.8 EXIT CHUTE SWITCH (PL10.2.13) Removal .............. 3-92

3.2.14 Drive .................................................................................... 3-92

3.2.14.1 P/H DRIVE ASSY (PL11.1.1) Removal ........................ 3-93

3.2.14.2 FUSER DRIVE ASSY (PL11.1.2) Removal .................. 3-94

3.2.14.3 FUSER MOTOR ASSY (PL11.1.4) Removal ............... 3-95

3.2.14.4 P/H MOTOR ASSY (Pl11.1.5) Removal ....................... 3-95

3.2.14.5 DRIVE MOTOR PWB (PL11.1.6) Removal .................. 3-96

3.2.14.6 PROCESS DRIVE ASSY (PL11.1.10) Removal .......... 3-96

3.2.14.7 ROTARY MOTOR ASSY (PL11.1.20) Removal ........... 3-97

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 ...... 3-98

3.2.14.10 DEVE. CLUTCH ASSY (PL11.1.23) Removal ............ 3-98

3.2.15 Frame .................................................................................. 3-99

3.2.15.1 DEVE. TIE PLATE (PL12.1.3) Removal ....................... 3-99

3.2.16 Electrical ............................................................................ 3-100

3.2.16.1 LVPS (PL13.1.1) Removal ......................................... 3-100

3.2.16.2 HVPS (PL13.1.2) Removal ......................................... 3-101

3.2.16.3 TOP COVER SWITCH (PL13.1.3) Removal .............. 3-102

3.2.16.4 DEVE. FAN (PL13.1.5) Removal ............................... 3-102

3.2.16.5 MCU PWB (PL13.2.1) Removal ................................. 3-103

3.2.16.6 FRONT COVER SWITCH R (PL13.2.3) Removal ..... 3-104

3.2.16.7 FRONT COVER SWITCH L (PL13.2.4) Removal ...... 3-105

3.2.16.8 ENVIRONMENT SENSOR (PL13.2.5) Removal ........ 3-106

3.2.17 Controller ........................................................................... 3-107

3.2.17.1 CONTROLLER PWB (PL14.1.10) Removal ............... 3-107

3.2.17.2 CONTROLLER FAN (PL14.1.2) Removal .................. 3-109

3.2.17.3 CONT. CHASSIS ASSY (PL14.1.1) Removal ............ 3-110

3.2.17.4 Lithium Battery Removal ............................................ 3-111

3.3 Adjustment

3.3.1 NIP Pressure of the MAIN FUSER ASSY ........................... 3-112

3.3.2 Development ....................................................................... 3-113

............................................................................................ 3-112

Chapter 4 Diagnostics

4.1 Diagnostics by the Diagnostic Commander

4.1.1 Overview ................................................................................. 4-2

4.1.2 Method of Printing Test Prints ................................................. 4-2

4.1.3 Test Print Patterns .................................................................. 4-4

4.2 Diagnostics Commander

4.2.1 Overview ................................................................................ 4-5

4.2.1.1 Configuration .................................................................... 4-5

4.2.1.2 Overview of the Diagnostic Commander .......................... 4-6

4.2.1.3 Overview of the DIAG. PWB ............................................ 4-6

4.2.2 Preparation .............................................................................. 4-7

4.2.2.1 Personal Computer .......................................................... 4-7

4.2.2.2 Installation of the Diagnostics Commander ...................... 4-7

4.2.2.3 Uninstalling the Diagnostics Commander ........................ 4-8

4.2.2.4 Connection of the diagnostics tools (MCU PWB) ............. 4-8

4.2.2.5 Connection of the diagnostics tools (Option Connector) .. 4-9

4.2.3 Commands / Statuses ............................................................. 4-9

4.2.3.1 Overview of Commands and Statuses ............................. 4-9

4.2.3.2 Data Format ................................................................... 4-10

4.2.3.3 Categories of Commands / Statuses .............................. 4-10

....................................................................... 4-5

.................................... 4-2

EPSON AcuLaser C8500 Revision B

4.2.4 Operating the Diagnostics Commander ................................ 4-11

4.2.4.1 Starting Up the Diagnostics Commander ....................... 4-11

4.2.4.2 Communications Connection ......................................... 4-11

4.2.4.3 Log Display ..................................................................... 4-12

4.2.4.4 [Manual] Tab Operation .................................................. 4-13

4.2.4.5 [Auto] Tab Procedures ................................................... 4-15

4.2.5 Diagnostics Execution ........................................................... 4-22

4.2.5.1 Diagnostics Execution Procedures ................................. 4-22

4.2.5.2 Diagnostics Types .......................................................... 4-22

4.2.5.3 Test Print ........................................................................ 4-23

4.2.5.4 Digital Input Test ............................................................ 4-24

4.2.5.5 Digital Input Test Device Code ....................................... 4-24

4.2.5.6 Digital Output Test .......................................................... 4-30

4.2.5.7 Digital Output Test Device Code .................................... 4-31

4.2.5.8 Analog Input Test .......................................................... 4-40

4.2.5.9 Analog Input Test Device Code ...................................... 4-41

4.2.5.10 Analog Output Test ...................................................... 4-43

4.2.5.11 Analog Output Test Device Code ................................. 4-44

4.2.5.12 EEPROM Read ............................................................ 4-46

4.2.5.13 EEPROM Write ............................................................ 4-49

4.2.5.14 EEPROM Initialize ........................................................ 4-52

4.2.5.15 NVM List ....................................................................... 4-53

4.2.6 Count Accumulation Value Read/Write ................................. 4-67

4.2.6.1 Read ............................................................................... 4-68

4.2.6.2 Write .............................................................................. 4-69

4.2.7 Command/Status List ............................................................ 4-70

4.2.7.1 Paper, Media & Output Control ...................................... 4-70

4.2.7.2 Printing/Status Control ................................................... 4-74

4.2.7.3 Parameter Control .......................................................... 4-80

4.2.7.4 Diagnostics Control ....................................................... 4-83

4.2.8 Error / Status Code ................................................................ 4-84

Chapter 5 Troubleshooting

5.1 Overview

5.1.1 Troubleshooting Procedure ..................................................... 5-2

5.1.2 Preliminary Checks ................................................................. 5-2

5.1.3 1.3 Precautions When Performing Work ................................. 5-3

5.1.4 Self-Diagnostic Function by LCD Message ............................. 5-4

5.1.4.1 Status Message ................................................................ 5-7

5.1.4.2 Error Message .................................................................. 5-9

................................................................................................... 5-2

5.1.4.3 Warning Message .......................................................... 5-15

5.1.4.4 Service-Call Error Messages .......................................... 5-19

5.2 Level 1 FIP (Fault Isolation Procedure)

5.2.1 Precautions When Using FIP (Fault Isolation Procedure) ..... 5-21

5.2.2 FIP Entry Chart ..................................................................... 5-22

5.3 Level 2 FIP (Fault Isolation Procedure

5.4 Picture Image Trouble

5.4.1 Picture Image Troubleshooting Entry Chart ........................ 5-120

5.5 Picture Quality FIP

........................................................................ 5-120

.............................................................................. 5-120

........................................... 5-21

............................................ 5-80

Chapter 6 Maintenance

6.1 About On-Site Servicing

6.1.1 On-site Service Flow ............................................................... 6-3

6.1.2 Description of the On-site Service ........................................... 6-4

6.2 Maintenance Menu

6.2.1 Entry to the Maintenance Menu .............................................. 6-8

6.2.2 Engine Status Sheet ............................................................... 6-9

6.3 Consumable Replacement

6.3.1 TONER CARTRIDGE Replacement ..................................... 6-14

6.3.2 PHOTOCONDUCTOR UNIT Replacement ........................... 6-17

6.3.3 WASTE TONER BOX Replacement ..................................... 6-19

6.4 Regularly Replaced Parts Replacement

6.5 Main After-Sales Parts Replacement

6.6 Installation

............................................................................................... 6-21

........................................................................ 6-2

.................................................................................. 6-7

.................................................................. 6-13

......................................... 6-21

............................................... 6-21

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

7.2.2 Parts List Tables ..................................................................... 7-3

7.2.3 Exploded Diagrams ................................................................. 7-7

7.3 Wiring Diagrams

7.3.1 P/J Locations ......................................................................... 7-19

7.3.2 Plug and Jack (P/J) Location Tables ..................................... 7-23

7.4 Wiring Diagrams and Signal Information

7.4.1 Overall Wiring Connection Diagram ...................................... 7-28

.................................................................................................... 7-2

..................................................... 7-2

.................................................................................... 7-19

........................................ 7-28

EPSON AcuLaser C8500 Revision B

7.4.2 Wiring and Signal Descriptions between Components ......... 7-30

7.4.2.1 Configuration .................................................................. 7-30

7.4.3 Notation on the Diagrams for the Wiring and Signal Descriptions be-

tween Components ............................................................................ 7-32

7.5 Component Layout

7.6 Circuit Diagrams

.............................................................................. 7-59

................................................................................... 7-61

PRODUCT DESCRIPTIONS

CHAPTER

EPSON AcuLaser C8500 Revision B



1.1 Features

The EPSON AcuLaser C8500 is a non-impact color page printer with a resolution of 600 dpi. It has mainly improved on the print speed; 6 ppm for color print (A4) and 26 ppm for monochrome print (A4). The main features of the printer are as follows:

ENGINE FEATURES

1. High speed print engine at a print speed of 6 ppm for color, and 26 ppm for B/W (when printing A4). Paper sizes of A5 to A3W are supported.

2. Duplex printing supported. The engine is capable of printing true 600 dpi high resolution in full color.

3. Higher quality printing is possible with high quality plain paper.

4. Capable of printing thick paper, coated paper and transparencies (exclusive transparencies).

5. Features easy maintenance as a color laser printer.

6. Standard paper feed includes 2 bins; MP tray (up to 150 sheets, A3W supported) and standard universal cassette (up to 250 sheets, A3 supported). Paper feeding of maximum 1400 sheets from 4 bins is possible with a optional lower cassette (Large Capacity Paper Unit, A3 supported) installed. Paper feeding of maximum 900 sheets from 3 bins is possible with the optional a optional lower paper cassette (500-Sheet Paper Cassette Unit, A3 supported) installed.

7. Standard paper output can output 250 sheets Face-down and 150 sheets Face-up.

2. Color technologies

3. EPSON RIP Station 5300 (On-board option for EPSON Color Copy

4. Equipped with 2 standard interfaces.

5. By expanding memory with RAM DIMMs, the following functions can be

6. Equipped with RTC (Real Time Clock). (For job management)

7. HDD (optional) can be installed.

SOFTWARE FEATURES

Standard RAM is 64 MB. By installing additional RAM (3 slots), the maximum memory size can be expanded to 768 MB. (Note: keep the standard RAM 64MB installed and use other two RAM slots if the memory needs to be expanded.)

Equipped with Enhanced ASIC (VIP1a).



Data compression has been incorporated into the hardware to achieve high speed processing.



Equipped with AcuLaser Color Halftoning, CRIT (Color RIT).

Station) supported.



IEEE 1284 compliant and ECP compatible parallel Interface



Ethernet interface (10Base-T/100Base-TX)

enhanced and speeded up.



Drawing area in AcuLaser Color Halftoning



Print Speed



Resolution

CONTROLLER FEATURES

1. Installed emulations



Standard : ESC/Page-Color mode

1. Newly designed High Speed Controller



A new 64-bit RISC CPU — R5000 - 266 MHz



64-bit high speed memory — SDRAM DIMM (The same RAM as in the EPSON EPL-C8200 can be used.)

B/W printing supported by ESC/Page Color (Automatic discrimination between color and B/W is speeded up)



Standard : LJ4, GL2, ESCP2, FX, I239X, ESC/Page (B/W) mode (fullcompatibility with Cardinal+)



Option : Adobe Postscript Level3 (Peacock-B /PostScript module)

PRODUCT DESCRIPTIONS Features 1-2

EPSON AcuLaser C8500 Revision B



Option : Color Copy Unit (EPSON RIP Station 5300)

2. Through EJL, PJL and Printer MIB, the printer status and printer environment are monitored.

3. Remote panel function through a Web browser using EPSON Net Web Assist.

4. When flash DIMM is installed, ROM update function is available. (RCC supported)

1.2 Specifications

This section describes specifications for EPSON AcuLaser C8500.

1.2.1 Basic Specifications

Method

5. Engine controller ROM(Flash) update function available

6. HP LaserJet4000 installed, the compatible font with 80 Scalable font installed, NLSP font ROM installed, Euro Symbol supported.

7. Engine adjustment function enabled by DIAG mode.

8. When a HDD (option) is installed, Electronic sorting, I/F reception buffer expansion (only for Ethernet I/F) and font registration when PostScript3 mode can be equipped.

9. Job management functions (available only for the job received from Network I/F)

10. Transfer voltage adjustment function

11. The default value for Gamma is changed to 1.8.

Semi-conductive laser beam scanning and dry electrophotographic process

RESOLUTION

600 dpi

Print mode



B/W mode: Standard monochrome print mode that supports

the fastest speed.



Color mode: Color mode which uses the color toner of Y, M, C,

and BK.

SPEED MODE



Standard mode: Transports paper at the highest speed supported

by the printer.



Half speed mode: In this mode, image on thick paper (over 105g/



Low speed mode: In this mode, paper is transported slowly to cause

), envelopes, and monochrome image on OHP

sheet are well fixed.

color image on OHP sheet to be fixed well.

PRINT SPEED

Figure 1-1. Exterior View of the EPSON AcuLaser C8500

See Table 1-1.

PRODUCT DESCRIPTIONS Specifications 1-3

EPSON AcuLaser C8500 Revision B

First print

Table 1-1. Speed Mode



Face-up: B/W 10.9 seconds or less (LT/A4 LEF)

Color 25.9 seconds or less (LT/A4 LEF)



Face-down: B/W 13.9 seconds or less (LT/A4 LEF)

Color 28.9 seconds or less (LT/A4 LEF)

NOTE:

First print is defined as the duration taken after receiving the start command until outputting the first print. It is applicable when a feeder is selected in the standard mode. (Not applied during the process control operation.)

Print mode

Monochrom print mode

Standard mode

Speed

mode

Single sided print

Duplex print 20.2 PPM 19.8 PPM 11.0 PPM 10.8 PPM

LT/A4 LEF*1 (2UP*2)

Standard

tray/

cassette

26.1 PPM 24.8 PPM 13.8 PPM 13.5 PPM

Optional

paper

cassettes

B (LD)/A3 SEF

Standard

tray/

cassette

Optional

paper

cassettes

Half speed mode

Color print mode

Standard mode

Half speed mode

Low speed mode

*1: LEF, or Long Edge Feed, means the longer edge of the paper is the top toward

the paper feed direction.

*2: In this mode, the printer creates two print images on the IBT belt and the images

are transferred in sequence onto two sheets of paper. It is available for LT/A4 (LEF) or smaller.

*3: SEF, or Short Edge Feed, means the shorter edge of the paper is the top toward

the paper feed direction.

*4: 500-Sheet Paper Cassette Unit, Large Capacity Paper Unit

Single sided print

Duplex print 6.0 PPM 6.0 PPM 3.0 PPM 3.0 PPM

Single sided print

4.0 PPM - 2.0 PPM -

6.0 PPM 6.0 PPM 3.0 PPM 3.0 PPM

2.7 PPM - 1.3 PPM -

2.2 PPM - 1.2 PPM -

WARM-UP TIME

Within 300 seconds (at 22 °C, 55% Rh, rated voltage)

PAPER HANDLING



Standard MSI, Standard universal cassette

Table 1-2. Paper Handling - Standard Tray/Cassette

Paper feeder

Standard MSI (MP tray)

Standard universal cassette

*1 *2

Capacity

(sheet)

150

(16mm)

250

(26mm)

Available paper size

Min.: 90 x 139.7 mm Max.: 330.2 x 457.2 mm A3, A3W, A4, A5, B4, B5,

I-B5, LT, HLT, LG, EXE, GLG, GLT, B(LD), F4

90x139.7-330.2x457.2 Post card, OHP sheet,

Label. Thick paper

Custom size envelope Monarch, C10, DL, C6

B5, LT, A4, B4, A3, LG, B(LD), EXE

Available Paper

Thickness

64 -105g/m (Recommended

paper, Normal paper)

105- 220g/m2 Thick paper,

Special paper

64 -105g/m

*1: For the paper whose width is more than 304.8 mm (12 inch), side guide in

the MSI tray must be adjusted.

PRODUCT DESCRIPTIONS Specifications 1-4

EPSON AcuLaser C8500 Revision B

*2: Paper Empty condition in the MSI tray is detected. *3: Note the following points when setting envelopes:

- Open flaps and set them facing to the tailing side.

- Set envelopes with the longer edges first. Length (excluding flap) must be shorter than width.

- The minimum length with a flap open must be 143mm.

- The minimum width must be 90mm



Option Cassette Unit

Table 1-3. Paper Handling - Option Cassette Unit

Paper Feeder

A3W Cassette

500-Sheet Paper Cassette Unit

Large Capacity Paper Unit

*1: Each cassette is equipped with the side guide and end guide (also used to

detect paper size). They are adjusted by the users.

*2: Each cassette is equipped with the paper out sensor and paper near empty

sensor. Paper near empty condition is defined as follows: 40 sheets +/- 30 sheets, FXL paper (64g/m2)

*1*2

Capacity

(sheet)

250 (26mm)

500 (53mm)

Available Paper

Size

A3W

B5, LT, A4, B4, A3, LG, B(LD), EXE

Available Paper

Thickness

64-105g/m2 (Recommended paper, Normal paper)

64-105g/m (Recommended paper, Normal paper)

(17 - 28lb)



Optional cassette usage and corresponding paper capacity

Table 1-4. Option Cassette Usage and Capacity

500-Sheet

Paper

Cassette

Unit

Large

Capacity

Paper Unit

1000

Sheets

1000

Sheets

MSI (MP

Tray)

150

Sheets

150

Sheets

150

Sheets

150

Sheets

*1: Use the A3W cassette by inserting it to the standard universal cassette slot. *2: Either 500-Sheet Paper Cassette Unit or Large Capacity Paper Unit is in-

stalled at the bottom.

*3: Applicable when recommended paper or normal paper is used.

Standard

Universal

Cassette

250 Sheets - 500 Sheets -

250 Sheets - -

- 250 Sheets 500 Sheets -

- 250 Sheets -

A3W

Cassette

DUPLEX PRINT



Minimum size: 182 mm/7.16” (W) x 210 mm/8.26” (L)



Maximum size: 304.8 mm/12” (W) x 457.2 mm/18” (L)



Paper wight: 64g/m2 - 105g/m2 (17 lb - 28lb)

Capacity

900

Sheets

1400

Sheets

900

Sheets

1400

Sheets

PRODUCT DESCRIPTIONS Specifications 1-5

EPSON AcuLaser C8500 Revision B

PAPER SIZE



Normal paper: See Table 1-5.

Table 1-5. Paper Size/ 2- UP Mode Availability

A3W cassette

SEF Unavailable Unavailable

2UP mode

availability

Duplex print

availability

Paper Size

MSI

A3W 328 x 453mm SEF

Paper setting orientation

Standard Option

Universal

casette

−−

500-Sheet/

LCP Unit

A3 297 x 420mm SEF SEF SEF

A4 210 x 297mm LEF LEF LEF

A5 148 x 210mm LEF

− − −

B4 257 x 364mm SEF SEF SEF

B5 182 x 257mm LEF LEF LEF

I-B5 176 x 250 LEF

−−−

LT 8.5 x 11” (215.9 x 279.4mm) LEF LEF LEF

HLT 5.5 x 8.5” (139.7 x 215.9mm) LEF

−−−

LG 8.5 x l4” (215.9 x 355.6mm) SEF SEF SEF

EXE

GLG 8.5 x 13” (215.9 x 330.2mm) SEF

GLT 8 x 10.5”(203.2 x 266.7mm) LEF

7.25 x 10.5” (184.15 x 266.7mm)

LEF LEF LEF

− − −

−−−

B (LD) 11 x 17” (279.4 x 431.8mm) SEF SEF SEF

F4 210 x 330 SEF

−−−

−

Unavailable Available

Available Available

Available Unavailable

−

Unavailable Available

Available Available

Available Unavailable

−

Available Available

Available Unavailable

−

Unavailable Available

Available Available

Unavailable Available

Available Available

−

Unavailable Available

*1: LEF: Long Edge Feed, SEF: Short Edge Feed *2: 2UP is available only for paper size of LT(LEF) or smaller. For custom size paper, paper length along the loading direction must be 210 mm (8.5

inch) or shorter. As for envelopes, the total length with its flap opened must be 8.5 inch or shorter.

PRODUCT DESCRIPTIONS Specifications 1-6

EPSON AcuLaser C8500 Revision B



Special paper: See Table 1-6

Table 1-6. Paper Size/2-UP Mode Availability

A3W

cassette

2UP mode

availability

Available Unavailable

Duplex print

availability

Paper Size

OHP Sheet

8.5 x 11” (210 x 297mm)

Paper setting orientation

Standard Option

MSI

LEF

Universal

cassette

−−−

500-Sheet/

LCP Unit

Post Card 100 x 148 mm SEF

MON

C10

DL 110 x 220 mm LEF

C6 114 x 162 LEF

*1: LEF: Long Edge Feed, SEF: Short Edge Feed *2: 2UP is available only for paper size of LT(LEF) or smaller. For custom size paper, paper length along the loading direction must be 210

mm (8.5 inch) or shorter. As for envelopes, the total length with its flap opened must be 8.5 inch or shorter.

*3: To feed envelope, open the flap and set it to the rear end.

37/8” x 71/2” (98.43 x 190.54 mm)

41/8 x 91/2 (104.78 x 241.3 mm)

LEF

Paper aligning

Single side aligning (front side) for all sizes (both standard tray (MSI) and each cassette)

Consumables



TONER CARTRIDGE (Black, Cyan, Magenta, Yellow)



DRUM CARTRIDGE (including one WASTE TONER BOX)



WASTE TONER BOX

− − −

−−−

− − −

−−−

− − −

Available Unavailable

REGULARLY REPLACED PARTS



MAIN FUSER ASSEMBLY (including an air filter)

PAPER OUTPUT



Face-down (FD): 250 sheets* (B5/EXE or larger, up to 105g/m



Face-up (FU): 150 sheets* (A4 or smaller) 50 sheets*

Applicable to the both single and duplex prints. (when recommended

paper is used)

(larger than A4)

(28lb))

PRODUCT DESCRIPTIONS Specifications 1-7

EPSON AcuLaser C8500 Revision B

See Table 1-7 for FD output availability.

Table 1-7. Face-Down Output Availability

Paper Size FD Availability Paper Size FD Availability

A3W Available HLT Unavailable

A3 Available LG Available

A4 Available EXE Available

Normal paper

Special paper

NOTE:

1: The minimum paper size available for FD ejection is 182 mm in the paper feeding

direction x 210 mm vertical to the paper feeding direction.

2: “FU*” in the FD availability columns means face-up ejection for OHP, thick paper, and

envelope.

A5 Unavailable GLG Available

B4 Available GLT Available

B5 Available B(LD) Available

LT Available F4 Available

I-B5 Unavailable

OHP sheet FU* C10 FU*

Postcard FU* DL FU*

MON FU* C6 FU*

DIMENSIONS

Table 1-8. Dimensions

Description Dimension (W x D x H) mm

Printer

main body

Option

*1: Tolerance is +/- 1 mm. *2: When the standard tray (MSI) and Output tray (FU) are stored. *3: Printer dimensions with its optional units installed are given in Section

1.2.11 "Exterior View and Parts".

Standard condition

500-Sheet Paper Cassette Unit

Large Capacity Paper Unit 578 x 602 x 264

A3W Cassette 560 x 547 x 95

*2 *3

650 x 646 x 554

With foot:575 x 602 x 164 With casters:575 x 602 x 206

WEIGHT

Table 1-9. Weight

Description Weight (kg +/- 1% kg)

Printer

body

Standard Condition 71.2

Duplex Unit 8.2

With foot:13.3 With casters:14.0

NOTE:

500-Sheet Paper Cassette

Option

Unit

Large Capacity Paper Unit 21.2

A3W Cassette 2.7

Total weight after installing optional units is not a total sum of each unit since their installation involves some part removal.

PRODUCT DESCRIPTIONS Specifications 1-8

EPSON AcuLaser C8500 Revision B

VOLTAGE



110/120V version: 110V/120V ± 10%, 50/60Hz ± 3Hz



220/240V version: 220V/240V ± 10%, 50/60Hz ± 3Hz

POWER CONSUMPTION



Operating (color)*1:



Average:500Wh or less



Maximum:[100V/120V version]1000W or less (Fuser is on)

[220/240V version]1050W or less (Fuser is on)



Operating (B/W)*1:



Average:650Wh or less



Maximum:[100V/120V version]1000W or less (Fuser is on)

[220/240V version]1050W or less (Fuser is on)



Standby mode:



Average230Wh or less



Maximum900W or less (Fuser is on)

100W or less (Fuser is off)



Energy save mode*2:

RATED CURRENT



100 V version: 11A or less (at rated voltage)



115V version: 10A or less (at rated voltage)



240V version: 5A or less (at rated voltage)

Product life



Printer (including the standard tray): Approximately 180,000* printed pages (450,000 images) on A4 LEF or five years, whichever comes first.

* Note one full color print is formed with four images. So the printer can

prints 180, 000 sheets (=450,000 images) if its job ration between the monochrome and color prints is 1:1. If the printer is used only for monochrome print, it can prints 450,000 sheets (= 450,000 images = 90,000 x 4 + 90000)



500-Sheet Paper Cassette Unit:180,000 sheets



Large Capacity Paper Unit:180,000 sheets



Duplex Unit: 180,000 sheets (each side of paper is counted as



A3W Cassette: 180,000 sheets

one sheet)



Average160Wh or less



Maximum900W or less (Fuser is on)

100W or less (Fuser is off)



Low power mode*3:



Average30Wh or less

*1: Including the optional cassette unit and duplex unit.

*2:Saves more energy than the standby mode. The required for warming up is shorter.

*3:Full pause status. Conforms to the Energy Star program.

Acoustic noise



Printer only



Operating:54.8dB (A) or less



Stand-by:38.3dB (A) or less



Energy Save mode:38.3dB (A) or less



Lower power mode:35.0dB (A) or less



With the Duplex Unit and Large Capacity Paper Unit installed



Operating:59.4dB (A) or less



Stand-by:38.3dB (A) or less

PRODUCT DESCRIPTIONS Specifications 1-9

EPSON AcuLaser C8500 Revision B



Energy Save mode:38.3dB (A) or less



Lower power mode:35.0dB (A) or less

Ozone density

0.01 ppm (time waited average value) or less.

TOXICITY

Photo conductor, toner, carrier, plastic material have no effect on human body.

DUST EMISSION

Dust concentration is less than 0.1 mg / m

PRODUCT DESCRIPTIONS Specifications 1-10

+ 540 hidden pages

Epson AcuLaser C8500 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

PRODUCT DESCRIPTIONS

1.1 Features

1.2 Specifications

1.2.1 Basic Specifications