Xerox DocuPrint 180 NPS Series Manuale utente

Xerox DocuPrint Network Printer Series

Troubleshooting Guide

for Models 96/4635/180 NPS

Version 7.1

August 2000

721P86651

Xerox Corporation

701 S. Aviation Boulevard

El Segundo, CA 90245

copyrightable material and information now allowed by statutory or

judicial law or hereinafter granted, including without limitation,

material generated from the software programs which are displayed

on the screen, such as icons, screen displays, looks, etc.

Printed in the United States of America.

Publication number: 721P86651

Xerox® and all Xerox products mentioned in this publication are

trademarks of Xerox Corporation. Products and trademarks of other

companies are also acknowledged.

Changes are periodically made to this document. Changes, technical

inaccuracies, and typographic errors will be corrected in subsequent

editions.

XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE iii

Laser safety

!Warning: Adjustments, use of controls, or performance of

procedures other than those specified herein may result in

hazardous light exposure.

The Xerox DocuPrint printers are certified to comply with the

performance standards of the U.S. Department of Health, Education,

and Welfare for Class 1 laser products. Class 1 laser products do not

emit hazardous radiation. The DocuPrint printers do not emit

hazardous radiation because the laser beam is completely enclosed

during all modes of customer operation.

The laser danger labels on the system are for Xerox service

representatives and are on or near panels or shields that must be

removed with a tool. DO NOT REMOVE LABELED PANELS OR

PANELS NEAR LABELS. ONLY XEROX SERVICE

REPRESENTATIVES HAVE ACCESS TO THESE PANELS.

Ozone information

This product produces ozone during normal operation. The amount

of ozone produced depends on copy volume. Ozone is heavier than

air. The environmental parameters specified in the Xerox installation

instructions ensure that concentration levels are within safe limits. If

you need additional information concerning ozone, call 1-800-828-

6571 to request the Xerox publication 600P83222, OZONE.

Operation safety

Your Xerox equipment and supplies have been designed and tested

to meet strict safety requirements. They have been approved by

safety agencies, and they comply with environmental standards.

Please observe the following precautions to ensure your continued

safety.

•Always connect equipment to a properly grounded electrical

outlet. If in doubt, have the outlet checked by a qualified

electrician.

!Warning: Improper connection of the equipment grounding

conductor may result in risk of electrical shock.

•Never use a ground adapter plug to connect equipment to an

electrical outlet that lacks a ground connection terminal.



iv XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE

•Always place equipment on a solid support surface with

adequate strength for its weight.

•Always use materials and supplies specifically designed for

your Xerox equipment. Use of unsuitable materials may result in

poor performance and may create a hazardous situation.

•Never move either the printer or the Printer Controller without

first contacting Xerox for approval.

•Never attempt any maintenance that is not specifically

described in this documentation.

•Never remove any covers or guards that are fastened with

screws. There are no operator-serviceable areas within these

covers.

•Never override electrical or mechanical interlocks.

•Never use supplies or cleaning materials for other than their

intended purposes. Keep all materials out of the reach of

children.

•Never operate the equipment if you notice unusual noises or

odors. Disconnect the power cord from the electrical outlet and

call service to correct the problem.

If you need any additional safety information concerning the

equipment or materials Xerox supplies, call Xerox Product Safety at

the following toll-free number in the United States:

1-800-828-6571

For customers outside the United States, contact your local Xerox

operating company.

XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE v

Table of contents

Laser safety iii

Ozone information iii

Operation safety iii

Introduction vii

About this guide vii

Contents vii

Conventions viii

Related publications ix

1. Calling for service 1-1

Information to have on hand when calling for service 1-1

Enabling and disabling the modem for remote service 1-2

2. Fault masking 2-1

3. Troubleshooting Xerox Client Software installation 3-1

4. Troubleshooting a Novell implementation 4-1

5. Clearing paper misfeeds and jams 5-1

Clearing a feeder tray fault 5-1

Frequent misfeeds 5-3

Clearing paper jams 5-4

Checking job integrity following a paper jam 5-5

Printer areas 5-6

Clearing bypass transport paper jams 5-16

Paper curl and paper jams 5-18

Measuring the paper curl 5-18

Adjusting the decurler lever 5-19

6. Using sample documents 6-1

Listing and printing sample documents 6-1

List Sample Documents 6-1

Print Sample Document 6-2

7. Adjusting print quality and speed 7-1

Installing the custom transfer assist blade 7-1

Correcting skewed printing 7-2

Measuring performance 7-4

TABLE OF CONTENTS

vi XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE

Calculating throughput 7-5

Minimizing the start-up latency 7-7

300 dpi versus 600 dpi performance 7-9

Setting page order 7-10

Product features that affect print quality 7-10

Proprietary PostScript extensions 7-10

Device-dependent operators 7-11

Gray shading—setscreen and setcolorscreen 7-11

Gray shading—settransfer and transfer function 7-11

Smooth curves—setflat 7-12

Invisible strokes—0 setlinewidth 7-12

Scan conversion—fill, eofill, and stroke 7-12

8. Correcting stacking problems 8-1

9. System unresponsive 9-1

Index INDEX-1

XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE vii

Introduction

This Xerox DocuPrint Network Printer Series Troubleshooting Guide

describes how to solve some specific problems that may occur when

you are using the Xerox DocuPrint 96, 4635, or 180 Network Printing

System (NPS).

About this guide

This guide is designed for Xerox DocuPrint 96/4635/180 NPS

operators whose job consists of the routine operation of one of these

systems.

Users should have an understanding of Printer Controller operations.

Before using this guide, become familiar with its contents and

conventions.

Contents

This section lists the contents of this guide:

•Chapter 1, “Calling for service,”describes the information to

have on hand when calling for support service.

•Chapter 2, “Fault masking,”describes how the Model 96/4635/

180 NPS masks a problem so that the job will continue to print.

•Chapter 3, “Troubleshooting Xerox Client Software installation,”

provides solutions to common problems with software

installation.

•Chapter 4, “Troubleshooting a Novell implementation,”

describes some ways to troubleshoot a Novell implementation

by viewing log messages.

•Chapter 5, “Clearing paper misfeeds and jams,”illustrates how

to clear paper misfeeds and jams from various parts of the

paper path.

•Chapter 6, “Using sample documents,”describes how you can

print sample documents to test the printing capability of your

system.

•Chapter 7, “Adjusting print quality and speed,”provides various

methods for optimizing print quality and speed.

•Chapter 8, “Correcting stacker problems,”provides solutions to

common stacker problems.

•Chapter 9, “System unresponsive,”provides solutions to

specific printer problems.

INTRODUCTION

viii XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE

Conventions

This guide uses the following conventions:

•All caps and angle brackets—Within procedures, the names of

keys are shown in all caps within angle brackets (for example,

press <RETURN>).

•Angle brackets—Variable information, or the position of a

specified argument in the command syntax, appears in angle

brackets (for example, List Fonts <Pattern>).

•Bold—Within procedures, text and numbers that you enter are

shown in bold (for example, enter privilege operator).

•“Enter”—Within procedures, the two-step process of keying in

data and pressing <RETURN> (for example, enter y).

•Italics—Document and library names are shown in italics (for

example, the Xerox DocuPrint Network Printer Series

Troubleshooting Guide).

•Quotes—Keywords you can enter as arguments appear in

quotes (for example, “USLetter”).

•Vertical bars—Alternatives to specified arguments are

separated by vertical bars (for example, Set Time <Time |

Remote Host Name | IP Address>).

Note: Notes are hints that help you perform a task or understand

the text.

Caution: Cautions alert you to an action that could damage

hardware or software.

!Warning: Warnings alert you to conditions that may affect the

safety of people.



INTRODUCTION

XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE ix

Related publications

The Xerox DocuPrint Network Printer Series includes the following

documents:

Decomposition Service and Tools Guide

Guide to Configuring and Managing the System

Guide to Managing Print Jobs

Guide to Performing Routine Maintenance

Guide to Submitting Jobs from the Client

Guide to Using Page Description Language

Installation Planning Guide

Messages Guide

System Overview Guide

Troubleshooting Guide

Glossary

Master Index

Customer Information Quick Reference Card

Printer Controller Commands Quick Reference Card

Submitting your Jobs from Macintosh Quick Reference Card

Submitting your Jobs from UNIX & DOS Quick Reference Card

Submitting your Jobs from Windows NT 4.0 (QuickPrint) Quick

Reference Card

Submitting your Jobs Using Windows NT 4.0 Drivers Quick

Reference Card

The documentation set also includes an electronic version, the

DocuPrint NPS Interactive Customer Documentation CD.

INTRODUCTION

x XEROX DOCUPRINT 96/4635/180 NPS TROUBLESHOOTING GUIDE

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