Epson LX-90TM User manual

or transmitted, in any form or by any means, mechanical, photocopying, recording or other-

wise, without the prior written permission of Epson Corporation. No patent liability is

assumed with respect to the use of the information contained herein. While every precaution

has been taken in the preparation of this book, Epson Corporation assumes no responsibility

for errors or omissions. Neither is any liability assumed for damages resulting from the use of

the information contained herein.

Apple is a registered trademark of Apple Computer, Inc.

Applesoft is a trademark of Apple Computer, Inc.

Centronics is a registered trademark of Data Computer Corporation.

HomeWriter, LX-90, PIG and QX-16 are trademarks of Epson America, Inc.

IBM is a registered trademark of International Business Machines Corporation.

Microsoft is a trademark of Microsoft Corporation.

QX-10 is a registered trademark of Epson America, Inc.

Nagano, Japan

Y497991200

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation and Operation

......................

Inserting the Printer Interface Cartridge

...........

Printing the Self Test

...........................4

Connecting the Printer to Your Computer

.........5

Control Panel

.................................6

Using Your Printer

.............................7

SelecType

....................................

SelecType Operation

...........................

Turning SelecType on

........................

Selecting typestyles

..........................

SelecType Exercise

.............................

Mode Combination

............................

SelecType Tips

................................

3Elements of Dot-Matrix Printing and

Computer /Printer Communications

..............

The Print Head

...............................

Other Pitches

.................................

NLQ Mode

...................................

ESCape and ASCII

............................

4PIC Features

..................................

Demonstration Programs

.......................

Running BASIC Programs

......................

Pica Printing

..................................

Changing Pitches

..............................

Cancelling

Codes

..............................

Resetting the Printer

...........................

Pitch Comparison

.............................

Near Letter Quality Mode

......................

5Print Enhancements and

Special Characters

.............................

Emphasized Mode

.............................

Double-Strike

.................................

111

ExpandedMode

...............................

Mode Combinations

...........................

Underline Mode

...............................

Master Select

.................................

Superscript and Subscript

.......................

International Characters

........................

Special Graphics Character Set

..................

Page Formatting

...............................

Margins

......................................

Skip-Over-Perforation

..........................

Line Spacing

..................................

Paper-OutSensor

.............................

Justification with NLQ

.........................

User-Defined Characters

........................

Defining Your Own Characters

..................

Designing Process

.............................

Definition program 1

.........................

Running the program

........................

Definition program

.........................

Running the program

........................

Defining NLQ Characters

.......................

NLQgrid ..................................

NLQ definition program 1

....................

NLQ definition program

....................

Introduction to Dot Graphics

....................

Dot Patterns

..................................

The Print Head and Graphics

....................

Graphics Mode

...............................

PinLabels.. ..................................

First Graphics Program

.........................

WIDTH Statements

............................

Multiple-Line Exercise

..........................

Density Varieties

..............................

Reassigning Code

..............................

Column Reservation Numbers

...................

Designing Your Own Graphics

...................

String variables

.............................

Appendixes

ALX-90 Characters

..............................A-l

DraftMode ..................................

A-2

NLQMode ...................................

A-4

Software Commands in

Numerical Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CCommand Summary

...........................C-l

Near Letter Quality Mode

......................

c-3

Character Width (Pitch)

........................

c-4

Print Enhancement

............................

c-7

PageFormatting.. .............................c-11

Margins

....................................c-11

Line Spacing

................................

c-12

Form feed and page length

....................

c-15

Tabs.. .....................................

C-16

Graphics

.....................................

c-19

User-Defined Characters

........................

c-22

Other Codes

..................................

C-23

DDIP Switches and Interface

......................

DIP Switches

.................................

Interface

.....................................

Troubleshooting and Advanced Features

...........

Installation of Commercial

Software Programs

............................

SelecType Features and Solutions

................

Reset codes

.................................

Cancelling modes

............................

Printing on Self-adhesive Labels

..................

Beeper Error Warnings

.........................

Applesoft BASIC Solutions

.....................

QX-10 and QX-16 Solutions

.....................

Graphics

.....................................

Data Dump Mode

.............................

B-l

D-l

D-4

E-l

E-2

E-3

E-4

E-5

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Index-l

Introduction

The Epson LX-90™ printer with the PIC for parallel interface sys-

tems combines low price with the high quality and advanced capabili-

ties formerly available only on more expensive printers.

The LX-90 User’s Manual tells you how to set up your printer. This

Printer Interface Cartridge Operation Manual gives you the specific

information you need to use the LX-90 with your computer.

This manual won’t waste your time with unnecessary information,

but it also won’t neglect anything you need to know about the LX-90

and its features.

You can read as much or as little of this manual as you wish. The

first chapter tells how to test the printer and connect it to your com-

puter. The second chapter explains SelecType, a feature that offers

you five special typefaces. The other chapters explain the main fea-

tures of the LX-90, and the appendixes give technical information on

the printer.

Note

Although all references in this manual are to the Epson

LX-90 printer, this PIC can also be used with the Epson

HomeWriter™-10.

Chapter

Installation and Operation

After you have set up your printer and loaded the paper (following

the directions in the LX-90

User’s Manual),

you are ready to plug in

your Printer Interface Cartridge (PIG™) and begin printing.

Inserting the Printer Interface Cartridge

Inserting the PIC is easy. The cartridge slides into the rectangular

opening, as shown in the LX-90 manual. Be sure the printer is OFF

when you insert the PIC. The PIC has a grounding wire. Attach it as

shown in Figure l-1.

Figure 1-l. Attaching the grounding wire

Now that the PIC is installed, you need to change the settings of

three small switches, called DIP switches, in the back of the printer,

Figure 1-2 shows where the DIP switches are.

Figure l-2. DIP switch location

The functions of these switches are explained in detail in Appendix

D, but all that you need to do now is turn three of them on. All the

others should be off. (The switches are down when they are off and up

when they are on.) Before you change any of the DIP switch settings

make sure that the power switch on the right side of the printer is

turned off.

The DIP switches are in two groups, with eight in the first group

and four in the second. Turn on switches 6, 7, and 8 in the first group.

Now you are ready to test your printer.

Printing the Self Test

It’s time to see the LX-90 in action. You’ll start with a self test. Don’t

connect the printer to your computer yet-just follow these steps:

1. Make sure that your printer has paper in it and that the power

switch (on the right side of the printer) is off.

2. Hold down the LF button on the control panel while you turn the

printer on with the power switch.

The LX-90 begins printing letters, numbers, and symbols in the

draft mode. It won’t stop until you turn it off or until it gets near the

end of the paper.

To see the same test in the NLQ (Near Letter Quality) mode, turn

the printer on while pressing the FF button. Figure 1-3 shows partial

results of both tests.

Draft

!“#$%!&’ ()*+,-./0123456789 : ; <=>?@ABCDEFGHI

! “#$%& ’ ()*+,-. /0123456789 : ; <=>?@ABCDEFEHIJ

“#$%& ’ ( ) *+, --. /0123456789 : ; <=>?@ABCDEFGHIJK

#$%& ’ ( )*+f , -. /O123456789 : ; <=>?@ABCDEFGHIJKL

$%&'()*+,-./0123456789: ; <

= >?@ABCDEFGHIJKLM

%&'()*+,-.

/0123456789 : ; <=>.. ?@ABCDEFGHIJKLMN

NLQ

! “#$%&’ ( ) *+, -.

/0123456789:;<=>?@ABCDEFGHI

!"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJ

"#$%&' ( ) *+, -.

/0123456789:;<=>?@ABCDEFGHIJK

#$%&'()a+,-./0123456789:;<=>?@ABCDEFGHIJKL

$%&' ()*+, -.

/0123456789:;<=>?@ABCDEFGHIJKLM

%&' ()*+, -.

/0123456789:;<=>?@ABCDEFGHIJKLM

Figure 1-3. Self-test printouts

Connecting the Printer to Your Computer

Now that the self test has shown that your printer is working well,

it’s time to hook it up to your computer. It is best to have both the

printer and the computer turned off when you do this.

Because different computers require different printer connections,

you need a separate cable to connect the PIC cable to your computer.

Connect the separate cable to the plug on the end of the PIC cable and

then plug the other end into your computer. Your computer manual or

your dealer will tell you what you need.

Control Panel

After connecting your LX-90 to your computer, turn on the printer

and look at the control panel, which is shown in Figure

l-4.

Figure 7-4. Control panel

You have already used the control panel for a special purpose,

printing the self test. Here are the main functions of the lights and

buttons on this panel:

The POWER light glows green when the power is on.

The READY light glows green when the printer is ready to accept

data. Don’t worry if this light flickers somewhat during printing;

this flickering is normal.

The PAPER OUT light glows red when the printer is out of paper or

the paper is loaded incorrectly.

The ON LINE light glows green when the printer can receive data.

In addition to the lights, the control panel has three buttons.

ON LINE-switches the printer between on line and off line status.

When the printer is on line, the ON LINE light glows and the printer

is ready to accept data.

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