Oki ES3640 MFP Manuale utente

ES3640MFP / CX3641MFP

Service & Troubleshooting Guide

Disclaimer

Every effort has been made to ensure that the information in this document is complete, accurate, and up to date. The manufacturer assumes no responsibility

for the results of errors beyond its control. While all reasonable efforts have been made to make this document accurate and helpful as possible, we make no

warranty of any kind, expressed or implied, as to the accuracy or completeness of the information contained herein. For the most up-to-date service information

available, visit our website at www.okidata.com © Okidata Americas, Inc. 2008

Contents

Chapter 1

Printer Maintenance Procedures

1.1 Service Maintenance Procedures

1.2 Cleaning the Printer

1.3 Cleaning the Imaging Unit Contacts

1.4 Cleaning the LED Heads

1.5 Cleaning the Feed Rollers

Chapter 2

User Menu and Adjustments

2.1 Accessing the User Menu

Main Menus Sub Menus

Configuration Print Page Count • Finisher Count • Supplies Life

Network • Paper Size in Tray • System

Print Pages Print Pages

Suspend Printing

Resume Printing

Print Secure Job Print Secure Job

Menus Tray Configuration • System Adjust

Shut Down

Admin Setup Admin Setup

Calibration Exit Calibration • Auto Density Mode

Auto BG Adjust Mode • Adjust Density

Adjust Registration • Setup Calibration

Calibrate • Remove Calibration

Print Statistics Statistics Menu • Log Size • Reset Counter

Change Password

Service Modes and Adjustments

2.2 Accessing Service Mode

2.3 Service Diagnostics Controls

2.4 The Motor & Clutch Test

2.5 The Switch Scan Test

2.6 Service Adjustments

Removing the calibration for the Copier Screen

Calibrating the Printer / Copier Screen

Using Command WorkStation to Calibrate the Printer / Copier Screen

Calibrating the Auto Media Detection Sensor

Chapter 3

Troubleshooting Print Quality

3.1 An Overview of Print-Quality Problems

Print-Quality Problems Overview

Defects Associated with Specific Printer Components

3.2 Generating and Analyzing Test Prints

Generating and Analyzing Control Panel Test Prints

Generating and Analyzing Service Test Prints

Generating and Analyzing Print Engine Test Prints

3.3 Print-Quality Troubleshooting Practices

Light Prints in All Colors

Light Print in Only One Color

Blank Prints

Mottled or Splotchy Prints

Unexpected Colors

Repeating Bands, Lines, Marks, or Spots

Random Bands, Lines, Marks, or Missing Spots

Random Spots

Background

Ghosting or Hot Offset

Incomplete Fusing or Cold Offset

Mis-Registration, Color Layers Not Correctly Registered

Toner on Back of Print

Image Not Centered or Positioned Correctly

Process Direction Bands, Voids, or Streaks

Scan Direction Bands, Voids, or Streaks

Scan Direction Dark Streaks

Process Direction Lines or Streaks

Chapter 4

Troubleshooting Paper Jams

4.1 Paper Jam Error Code Table

4.2 Jam Troubleshooting

Code 370: Paper Jam Occurred in the Duplex (Rear)

Code 371: Paper Jam Occurred in the Duplex (Middle)

Code 372: Paper Jam Occurred in the Duplex (Front Cover)

Code 373: Paper Jam Occurred in the Duplex (Rear)

Code 380: Paper Jam Occurred in the Paper Path (Side Cover)

Code 381: Paper Jam Occurred in the Paper Path (Under Drums)

Code 382: Paper Jam Occurred in the Paper Path (Top Cover Fuser)

Code 383: Paper Jam Occurred in the Paper Path (Top Cover Fuser/Duplex)

Code 384: Paper Jam Occurred in the Paper Path (Top Cover Fuser/Exit)

Code 390: Paper Jam Occurred during Paper Feed (MPT)

Code 391: Paper Jam Occurred during Paper Feed (Side Cover or Tray1)

Code 392: Paper Jam Occurred during Paper Feed (Side Cover or Tray2)

Code 393: Paper Jam Occurred during Paper Feed (Side Cover or Tray3)

Code 394: Paper Jam Occurred during Paper Feed (Side Cover or Tray4)

Code 400: Incorrect Size Paper has been Used (Side Cover)

Code 401: Multiple Sheets of Paper were Fed (Side Cover)

User Clearable Errors 631 through 649

Chapter 5

Troubleshooting Self Diagnostic Codes

5.1 Self Diagnostic Error Codes

Self Diagnostic Error Codes (Printer)

Self Diagnostic Error Codes (Scanner/ADF)

Self Diagnostic Error Codes (Finisher)

Self Diagnostic Error Codes (Other Codes)

5.2 General Troubleshooting

No Control Panel Display

Control Panel LED is on, No Control Panel Display

Printer does not appear to Operate at Power On.

Printer Continually Displays “Warming Up” or “Initializing”

Troubleshooting AC Power Supply

Troubleshooting DC Power Supply

Troubleshooting RAM Memory Failures

Paper Size Errors

5.3 Troubleshooting Error Codes

Fuser Failure

Environmental Sensor Failure

Motor Overheating Failure

Engine Control Board Failure

LVPS Power Supply Failure

Fiery Controller Fan Failure

Power Supply Fan Failure

Fan Failure

Duplex Interface Failure

Tray 2, 3, 4 Communication Errors

Inverter Unit Interface Failure

Cyan, Magenta, Yellow, Black LED Failure

Fuser Fan Failure

Fuser 110V/220V Mismatch Error

Unsupported Duplex Unit Rom

Fuse Cut Error (Fuser)

Fuse Cut Error (Transfer Belt Unit)

Fuse Cut Error C, M, Y, K Imaging Drum Unit

Fiery Controller to Engine Board Communication Failure

Finisher Interface Error

Inverter Power Supply Failure

Control Panel Communication Failure

Error in the Transfer Belt

C, M, Y, K Imaging Drum Unit Failure

Engine Board Flash Memory Error

Unsupported ROM

Toner Sensor Detection Error

MT Home Position Detection Error

Toner Feed Switch Error/Toner Lock Error

Color Up/Down Error

Top Cover Open Error

Fuser Unit Detected as Missing

Image Drum Unit Life Error

Fuser Life Error

Belt Life Error

Toner Out Error

Chapter 1

Printer Maintenance Procedures

1.1 Service Maintenance Procedures

Perform the following procedures whenever you check, service, or repair the printer. Cleaning the

printer, as outlined in the following steps, assures proper operation of the printer and reduces the

probability of having to service the printer in the future. The frequency of use, Average Monthly

Print Volume (AMPV), type of media used, and operating environment are factors in determining

the frequency of this maintenance procedure. Be sure to record the number of sheets printed

between each service visit and attach the PS test page, Demo Page, and configuration sheets to

your service log for future reference.

Recommended Tools

•Toner vacuum cleaner

•Laptop computer with:

(Windows XP)

(Current Model Print Drivers)

(Current Command Workstation loaded)

(Kodak Calibration Pack)

•Clean, dry, lint-free cloth

•Black, light protective bag

Perform these routine maintenance procedures during the course of servicing the printer.

•Clean the feed rollers, exit rollers, and guides; replace as necessary.

•Remove and clean all paper trays.

•Clean the Color Registration and Automatic Density Control Sensors.

•Check cleanliness of interior and exterior, including fans; clean as necessary.

•Check the print engine and Fiery Controller firmware version located on the first page of the

configuration sheet. Update as necessary.

•Print a PS test page and Demo page, diagnose, and repair any problems as indicated.

•Perform the Printer / Scanner calibrations in Chapter 2.

•Review proper printer operation using a customer file, if possible. Check with the customer

regarding any special applications they may be running.

•Review with the customer all work that was performed; and discuss proper printer care and

the importance of properly using the shut down sequence to prevent Hard Drive

issues.

1.2 Cleaning the Printer

Perform the following general cleaning steps as indicated by the printer’s operating environment.

Caution

Never apply alcohol or other chemicals to any parts in the printer. Never use a damp cloth to clean

up toner. If you remove the Image Drum Units, place them in a light protective bags or similar

means to protect the drums as exposure to light can quickly degrade performance and result in

early failure.

1. Record number of sheets printed on a service log left with the printer.

2. Print several sheets of paper to check for problems or defects.

3. Turn off the printer.

4. Clean all fans to remove excess dust.

5. Ensure that all cover vents are clean and free of obstructions.

6. Remove any debris or foreign objects from the Transfer Unit, Fuser, and Imaging Units.

7. Vacuum loose toner from the printer interior using a Type II toner vacuum only.

8. Remove and clean the paper trays.

9. Clean / inspect all rubber rollers with a lint-free cloth slightly dampened with cold water.

Replace as necessary.

1.3 Cleaning the Imaging Unit Contacts

1. Open the Top Cover.

2. Remove the Imaging Units and place it on a stable surface.

3. Working quickly to reduce light exposure, clean the 4 contacts at the front of the Imaging Unit.

4. Clean the 3 contacts at the rear of the imaging unit.

5. Clean the contacts on the Housing Bias Assembly.

1.4 Cleaning the LED Heads

Clean the LED Head if a vertical White band or White stripe appears on the print.

Caution

Always use a soft, dry, lint-free cloth to clean the LED Heads. Never use solvents to clean the lens.

1. Open the Top Cover.

2. Clean each LED Head with a clean, lint- free cloth.

1.5 Cleaning the Feed Rollers

Clean the accumulated dust from the Feed Rollers.

Caution

Use care not to scratch or otherwise abrade the roller surface while cleaning. Gently rub the

roller surface using a soft, lint-free cloth moistened with water.

1. Access the rollers by removing Tray 1 or opening the MPT tray.

2. Clean each roller with soft, lint-free cloth moistened with water.

Tray 1 Rollers

MPT Tray Rollers

Chapter 2

User Menu and Adjustments

2.1 Accessing the User Menu

Press the menu up arrow to access the User Menu.

User Mode Menus

Main Menus Sub Menus

Configuration Print Page Count • Finisher Count • Supplies Life

Network • Paper Size in Tray • System

Print Pages Print Pages

Suspend Printing

Resume Printing

Print Secure Job Print Secure Job

Menus Tray Configuration • System Adjust

Shut Down

Admin Setup Admin Setup

Calibration Exit Calibration • Auto Density Mode

Auto BG Adjust Mode • Adjust Density

Adjust Registration • Setup Calibration

Calibrate • Remove Calibration

Print Statistics Statistics Menu • Log Size • Reset Counter

Change Password

Functions

*Configuration

Print Pages

Suspend Printing

Resume Printing

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