Xerox 4890 Advanced Bedienungsanleitung

XEROX

Xerox 4890 HighLight Color

Laser Printing System

Product Reference

Version 5.0

November 1994

720P93720

Xerox Corporation

701 South Aviation Boulevard

El Segundo, California 90245

reserved.

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.

November 1994

Printed in the United States of America.

Publication number: 721P82591

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.

This book was produced using the Xerox 6085 Professional

Computer System. The typefaces used are Optima, Terminal,

and monospace.

Table of contents

1. LPS fundamentals 1-1

Electronic printing 1-1

Advantages 1-1

Highlight color 1-2

Uses for highlight color in your documents 1-2

How highlight color is created 1-2

Specifying 4890 colors 1-3

Color-related software considerations 1-4

Adding color to line printer and LCDS data streams 1-4

Adding color to Interpress and PostScript data streams 1-5

Adding color to forms 1-6

Fonts 1-8

Acquiring and loading fonts 1-9

LPS production process overview 1-9

Ink referencing 1-10

Unformatted data 1-10

Formatted data 1-11

4890 HighLight Color LPS major features 1-11

4890 feature reference 1-12

LPS connection options 1-12

System controller 1-13

Optional peripheral cabinet 1-13

Printer 1-13

Paper handling 1-14

Forms 1-15

Fonts 1-15

Printed format 1-15

Highlight color 1-16

Types of output 1-16

DFA/Segment Management 1-16

SCSI System Disk/Floppy Disk 1-18

Color Enhancements 1-18

XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE iii

TABLE OF CONTENTS

2. Printer hardware components 2-1

4890 hardware components 2-1

LPS system disk storage and memory 2-2

System control console 2-3

Printer components 2-5

Additional features 2-8

Accessories 2-8

Hardware options 2-8

4890 peripheral cabinet tape drives 2-9

Graphic video generator 2-10

Font memory expansion 2-10

High-capacity feeder 2-10

Stitcher/stacker 2-11

3. Software 3-1

4890 operating system software 3-1

LPS editor 3-1

Print Description Language 3-1

Forms Description Language 3-1

Host software 3-1

Xerox Forms Generator 3-2

CompuSet (Document Sciences Corporation) 3-2

Xerox Printer Access Facility 3-2

Xerox Print Services 3-2

Xerox Pen Plotter Interface 3-2

Xerox DCF and GDDM Interface 3-3

Third-party host software 3-3

Application software for IBM mainframe environments 3-3

Application software for DEC mainframe environments 3-3

PC-based software 3-3

Application software for IBM PC workstation environments 3-4

Application software for Macintosh workstation environment 3-4

Application software for Sun workstation environments 3-4

Interpress 3-4

4. LPS connections 4–1

System components 4–1

Environment 4-2

Connecting the printer and the environment 4-3

Connectivity overview 4-3

Primary connectivity concerns 4-3

iv XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE

TABLE OF CONTENTS

Overview of connectivity requirements for mainframes 4-5

Overview of connectivity requirements for workstations 4-5

Interfaces supported by the printer 4-6

Online interfaces 4-6

Offline interface 4-8

Network interface 4-9

Multiple interfaces 4-9

Communication protocols required by the printer 4-10

Converting protocols for online connectivity 4-10

Converting protocols for network connectivity 4-10

Datastreams required by the printer 4-11

Conversion of PostScript datastreams 4-11

Connectivity options for IBM and compatible mainframes 4-12

Interface options 4-12

Connectivity options for DEC and MicroVax mainframes 4-15

Interface options 4-15

Connectivity options for other mainframes 4-17

Online interface option 4-17

Connectivity options for IBM PC and PC-compatible workstations 4-18

Interface options 4-18

Connectivity options for Macintosh workstations 4-20

Interface options 4-20

Connectivity options for Sun workstations 4-22

Interface options 4-22

Connectivity options for other workstations 4-23

Offline connectivity for workstations 4-24

High Speed PostScript Printing (HSPP) solutions (or SDI) 4-25

5. User considerations 5-1

Job compatibility 5-1

Image size considerations 5-1

Edgemarking 5-3

Non-imaged elements 5-4

Error messages 5-5

Registration shift and skew 5-5

Graphic images 5-7

Fonts 5-7

Font memory 5-7

Compatibility with 4050 and 9790 family Xerox LPS fonts 5-8

Transparencies 5-8

Transfer blade 5-8

XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE v

TABLE OF CONTENTS

Output performance considerations 5-9

Mode switching 5-10

Throughput considerations related to highlight color 5-12

Queue management 5-12

Ink substitution 5-12

6. LPS comparison 6-1

Hardware 6-1

Software 6-2

LPS compatibility and comparison 6-2

Paper sizes and special stocks 6-9

Print resolution considerations 6-11

JDL compatibility 6-12

Appendices

A. Third-party connectivity products A-1

B. Application software data streams and connectivity B-1

Glossary GLOSSARY-1

Index INDEX–1

iv XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE

1. LPS fundamentals

The Xerox 4890 HighLight Color Laser Printing System (LPS)

brings highlight color capability to the world of electronic

printing. Through advanced imaging technology known as tri-

level xerography, this printer has the capacity for production

printing. It also prints at 300 dots per inch (dpi) with black plus

one color and tints and shades of that color in a single pass.

Electronic printing

Electronic printing is the integrated production of documents,

using digitally stored text files and graphic images, computerized

composition techniques, and electronic printing systems such as

the 4890 LPS.

This concept applies to a variety of printing applications including

books, lengthy reports, forms, listings, invoices, statements, and

other business communications.

Advantages

Electronic printing has several important advantages over

traditional printing methods:

•The use of preprinted forms can be eliminated. Forms are

created electronically, using a wide range of design elements

such as lines, boxes, color, graphic images, and a variety of

fonts. Forms are automatically merged with variable data.

•Unlike traditional printing processes, color can accent data,

such as the customer balance shown on a statement or

invoice, price figures on a price list, or items that need to be

reordered on an inventory report.

•Electronic printing allows you to create documents and forms

in less time, with more control over the result (including the

ability to make last-minute changes).

•Because of reduced setup time, electronic printing makes

smaller print jobs more economical, including the ability to

add color easily even when only a few copies are required.

Electronic printing also increases the economy of printing a

few copies of large documents.

•Electronic printing is a single integrated process. While

traditional printing often requires multiple steps (more when

color is involved), the 4890 LPS manages multiple steps

automatically, while still giving you complete control over the

process.

The goal of electronic printing is to increase efficiency in the

document creation process.

XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE 1-1

LPS FUNDAMENTALS

Highlight color

The 4890 is a HighLight Color Laser Printing System. Highlight

color is the use of one primary color and black in their pure

forms (solid color or solid black) or mixed to create tones, which

are a mixture of color with black or white.

While there are several primary colors available such as red,

green and blue, only one color at a time can be installed in the

printer. Black is installed permanently in the printer and may not

be removed.

In highlight color printing, colors are simulated; that is, there is

no physical mixing of different color pigments to achieve the

desired color. Color is created by printing very small dots of

black dry ink and highlight color dry ink very close to each other

to produce the illusion of a color. When the human eye views a

patch of color printed in this manner, it perceives a color

different than either black or the highlight primary color.

Uses for highlight color in your documents

Highlight color is a design element, similar to others you are

already using in your reports and documents. Like fonts, lines,

boxes, and other graphic tools, highlight color can emphasize

the message and improve the readability of the printed page, or

visually support the organization of the document.

Some examples of these uses are:

•In forms, use color to separate required versus optional entry

boxes.

•In statements or invoices, use color to highlight the most

important information, such as a balance due.

•In longer documents, use color in organizational elements,

such as lines, or edge markers to make information easier to

find.

•In graphics, use color to emphasize items like bar charts, or

specific parts.

These are only a few ways to use highlight color to improve the

quality of your printed communications.

How highlight color is created

Highlight color is created by printing a matrix of pixels in

combinations of black, the highlight color, and white (not

printing anything and assuming you are using white paper). The

arrangement and the relative density of these pixels produces an

illusion of color.

1-2 XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE

LPS FUNDAMENTALS

In figure 1-1, the illustration on the left shows a conceptual view

of a greatly enlarged pixel matrix, and on the right a box with the

printed result on the 4890. This matrix represents one quarter

black, one quarter highlight primary color, and one half white.

Figure 1-1. Conceptual picture of the pixel matrix used in

the creation of highlight color

The illustration in figure 1-2 gives the same representation of a

different pixel matrix that results in a different color, as shown in

the box right of the illustration.

Figure 1-2. Conceptual picture of the pixel matrix used in

the creation of highlight color

Specifying 4890 colors

When creating documents and reports, 4890 colors are specified

by commands indicating the name of a color. In some host-

resident software, a number is often used to designate a color.

Each color has been defined as an ink, a term used to refer to a

4890 color.

Inks (colors) are defined in an ink catalog file (identified by the

.ICT extension on the file). Your 4890 comes with an ink catalog

containing a large set of 4890 inks.

Ink referencing

Once the inks are defined, they may be referenced by name in

certain Page Description Language (PDL), and Form Description

Language (FDL) statements. (Refer to the 4890 HighLight Color

XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE 1-3

LPS FUNDAMENTALS

LPS PDL Reference and the Forms Creation Reference for more

information.)

Color support for the 4890 LPS is provided through host-resident

software, such as CompuSet and other third-party document

composition systems. These software packages also reference

inks from ink catalog files. Consult the appropriate reference

manual for the software you are using for information on how

color is specified.

The 4890 supports the color capabilities of Interpress, the Xerox

Page Description Language. Once a document is converted to

Interpress, it is sent to the printer using Xerox Network System

(XNS) protocols.

With an optional front end processor installed, the 4890 prints

documents from software that supports PostScript output,

making full use of the application software color capability.

Color substitution

Output from hosts, PCs, or workstations may contain color

information in the form of an industry-standard color model.

This software includes programs that output Interpress,

PostScript, and HP-PCL masters. In these models, the full

spectrum of colors is specified through combinations of three or

four parameters.

Because the 4890 produces tones of a single highlight primary

color, the colors specified must be mapped into a color (ink)

defined in the currently available ink catalog file. The translation

process attempts to match the colors as closely as possible.

This mapping occurs automatically as a function of the 4890

operating system software (OSS), in the front end processor, or

in some host software packages, depending on the particular

application.

Color-related software considerations

HighLight color documents for printing on the 4890 are

produced by color applications or by adding color with printer

utilities. The methods available for adding color to documents

depend upon the data stream produced by the application

software used to create the document.

Adding color to line printer and LCDS data streams

When variable data is sent to the printer using Laser Conditioned

Data Set (LCDS) or line printer data streams, highlight color is

implemented through specification in PDL and metacode

commands. These commands are included within the data

stream by the document creation software.

Adding color during document creation

Many document creation applications support highlight color

printing directly. Documentation for these software packages

includes instructions for adding color to documents.

1-4 XEROX 4890 HIGHLIGHT COLOR LPS PRODUCT REFERENCE

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