Xerox DocuPrint Network Printer Series Guide Manuale utente

Xerox DocuPrint Network Printer Series

Guide to Using Page Description Languages

Version 7.1

August 2000

721P87491

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: 721P87491

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 NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES 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.

This label is inside the left door, on the machine frame just above the

directions for clearing a jam in area 4.

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.

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iv XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES

!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.

•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, contatct your local Xerox

operating company.



XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES v

Table of contents

Laser safety iii

Ozone information iii

Operation safety iii

Introduction ix

About this guide ix

Contents ix

Conventions ix

Related publications xi

Related information xi

PostScript publications xi

HP PCL 5 publications xii

VIPP publication xii

1. PCL 5 1-1

Maintaining image quality 1-1

PCL 5 media support 1-3

PCL 5 font support 1-3

PCL command support 1-5

PJL commands 1-5

PCL Copy command 1-5

PCL Duplex commands 1-7

PCL Job Separation command 1-8

PCL media selection 1-9

PCL Paper Source command (tray assignment) 1-9

Precedence in selecting media 1-10

PCL Output Bin command 1-11

PCL Offset Registration commands 1-11

PCL 5 coding recommendations 1-12

PCL 5c support 1-12

PCL 5c coding recommendations 1-13

PCL 5c functions not applicable to DocuPrint NPS 1-13

Driver recommendations for PCL 5c 1-14

Limitations for custom PCL 5c drivers 1-14

TABLE OF CONTENTS

vi XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES

2. PostScript 2-1

Implementation-dependent operations 2-1

Floating-point arithmetic and math operators 2-1

Coordinate system default matrix 2-1

Fonts 2-2

Loading fonts 2-3

User-defined fonts 2-3

Type 1 fonts 2-4

Using Adobe Type 1 fonts 2-4

Producing Type 1 fonts for use with DocuPrint 2-5

Using a Type 1 font in a document 2-5

PostScript with embedded PJL commands 2-6

PostScript language extensions 2-6

System Dict 2-6

User Dict 2-7

Server Dict 2-7

Status Dict 2-8

Miscellaneous: IdleTime Dict, Printer Dict, and Execution Dict 2-8

IdleTime Dictionary 2-8

Printer Dictionary 2-9

Execution Dictionary 2-9

Nonstandard definitions 2-9

Examples of nonstandard definitions 2-10

Appearance consistency 2-10

Printer resolution and resolution enhancement 2-10

Printer imaging characteristics 2-12

Font consistency 2-13

Proprietary PostScript extensions 2-13

Control-D as binary data and end-of-job 2-14

Control-Z and superfluous errors 2-14

Solution to control-Z and control-D problems 2-15

Multiple jobs in one input file 2-16

DocuPrint NPS implementation of PostScript Level 2 2-17

Simulated mixed plex 2-17

Printer Controller operations 2-18

Scan conversion details 2-18

Stroke 2-18

Fill 2-19

Shapes 2-19

Zero-width lines (strokes) 2-20

TABLE OF CONTENTS

XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES vii

Curved shapes 2-20

Images 2-20

Image quality 2-21

Rendering of color and gray values: transfer function 2-22

PostScript printer description (PPD) files 2-23

Implementation limits 2-23

File operators and standard devices 2-24

Path limits 2-25

PostScript VM limits 2-25

SetCacheDevice 2-25

Device orientation and setscreen operator 2-25

PostScript storage object size limits 2-26

Obsolete operators—banddevice, framedevice, renderbands 2-26

Arc to Bezier conversion—pathforall 2-26

Creating the necessary PostScript CCITT Group 3 and 4 2-27

Print performance related to image printing 2-27

Scan order and rotation 2-27

Purpose 2-28

Considerations 2-31

Summary 2-31

Scan resolution and scaling 2-32

3. VIPP 3-1

Functionality 3-2

Operating environment 3-2

VIPP line mode extension (XGFNub) 3-3

Index INDEX-1

TABLE OF CONTENTS

viii XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES

XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES ix

Introduction

The Xerox DocuPrint Network Printing Series Guide to Using PDL

describes how the PostScript, HP PCL 5, and VIPP (formerly XGF)

page description languages (PDLs) are implemented on the Xerox

DocuPrint NPS printers.

About this guide

This document is for users who will be submitting PostScript, HP

PCL 5, Decomposition Service, and VIPP jobs to the DocuPrint

printers. These users should be familiar with the applications they are

using to generate print jobs. This document is also for PostScript, HP

PCL 5, and VIPP programmers who will be creating applications

since it defines the features that are not supported for each PDL. It is

assumed that these programmers have a working knowledge of the

language they are working in. For specific reference information,

refer to the “Related information”section in this guide.

Before using this guide, become familiar with its contents and

conventions.

Contents

This section lists the contents of this guide:

•Chapter 1, “PCL 5,”provides information about how to use PCL

5 with your DocuPrint printer.

•Chapter 2, “PostScript,”contains the information you need to

use PostScript with your DocuPrint printer.

•Chapter 3, “VIPP,”provides instructions for using Variable Data

Intelligent PostScript PrintWare (formerly XGF) with your

DocuPrint.

Conventions

This document 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>).

INTRODUCTION

x XEROX DOCUPRINT NPS GUIDE TO USING PAGE DESCRIPTION LANGUAGES

•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> <ENTER> (for example,

enter y).

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

example, the Xerox DocuPrint Publishing Series Guide to

Performing Routine Maintenance).

•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.

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