Epson SQ-2550 User manual

EPSON
SQ-850
SQ-2550
24-NOZZLE INK JET PRINTER
USER’S GUIDE

FCC COMPLIANCE STATEMENT FOR AMERICAN USERS
This equipment generates and uses radio frequency energy and if not installed and used
properly, that is, in strict accordance with the manufacturer’s instructions, may cause
interference to radio and television reception. It has been type tested and found to comply
with the limits for a Class B computing device in accordance with the specifications in
Subpart J of Part 15 of FCC rules, which are designed to provide reasonable protection
against such interference in a residential installation. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
interference to radio and television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•
Reorient the receiving antenna
•
Relocate the printer with respect to the receiver
•
Move the printer away from the receiver
•
Plug the printer into a different outlet so that the printer and receiver are on different
branch circuits.
If necessary, the user should consult the dealer or an experienced radio/television technician
for additional suggestions. The user may find the following booklet prepared by the Federal
Communications Commission helpful:
“Television Interference Handbook”
This booklet is available from the U.S. Government Printing Office, Washington DC 20402.
Stock No. 004-000-00450-7.
WARNING
The connection of a non-shielded equipment interface cable to this equipment will invalidate
the FCC Certification of this device and may cause interference levels that exceed the limits
established by the FCC for this equipment. If this equipment has more than one interface
connector, do not leave cables connected to unused interfaces.

EPSON
SQ-850/2550
User’s Guide

All rights reserved. No part of this publication may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means, mechanical, photocopying, recording, or
otherwise, without the prior written permission of Seiko 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, Seiko 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.
Seiko Epson Corporation shall not be liable against any damages or
problems arising from the use of any options other than those
designated as Original Epson Products by Seiko Epson Corporation.
EPSON and EPSON ESC/P are trademarks of Seiko Epson
Corporation.
IBM and IBM PC are trademarks of International
Business Machines Corporation.
Copyright ©1988 by Seiko Epson Corporation
Nagano, Japan

Contents
About This Guide
1
Introduction
3
Chapter 1 Setting Up the Printer l-l
Ink Jet Precautions ...............................................................
1-2
Unpacking the Printer .........................................................
1-3
Choosing a Place for the Printer
........................................... l-7
Assembling the Printer ........................................................
1-9
Testing the Printer ................................................................
1-14
Connecting the Printer to Your Computer ..................... l-28
Setting Up Your Application Software ........................... l-32
Chapter 2 Paper Handling 2-l
Choosing Paper .....................................................................
2-2
Using Single Sheets ..............................................................
2-3
Using Continuous Paper .....................................................
2-8
Switching between Continuous and Single Sheets
......
2-16
Printing on Special Paper ...................................................
2-23
Contents iii

Chapter 3 Using the Printer 3-l
Operating the Control Panel .............................................. 3-2
SelecType Settings ................................................................. 3-10
Page Length ............................................................................ 3-18
Skip Over Perforation ..........................................................
3-19
Adjusting the Loading Position ......................................... 3-21
Short Tear-Off ........................................................................ 3-23
Selecting Typestyles .............................................................. 3-28
Selecting an International Character Set ......................... 3-35
Choosing a Character Table ...............................................
3-36
Data Dump Mode ................................................................. 3-38
Chapter 4 Software and Graphics 4-l
Enhancing Your Printing ..................................................... 4-2
Graphics ................................................................................... 4-9
User-defined Characters ......................................................
4-21
Chapter 5 Using Printer Options 5-1
The Cut Sheet Feeder ........................................................... 5-2
The Pull Tractor .....................................................................
5-21
Interface Boards .....................................................................
5-31
Chapter 6 Maintenance 6-l
Cleaning the Printer .............................................................
6-2
Cleaning the Print Head ...................................................... 6-4
Replacing the Ink Cartridge ............................................... 6-6
Transporting the Printer ...................................................... 6-9
iv Contents

Chapter 7 Troubleshooting 7-l
Problems and Solutions ...................................................... 7-2
Power Supply ........................................................................
7-3
Printing ................................................................................... 7-4
Paper Handling ..................................................................... 7-13
Options ....................................................................................
7-21
Chapter 8 Technical Specifications 8-l
Printer Specifications ........................................................... 8-2
Interface Specifications ........................................................ 8-10
Options Specifications ......................................................... 8-15
Initialization ........................................................................... 8-18
Chapter 9 Command Summary 9-l
Using the Command Summary ......................................... 9-2
Commands
in Numerical Order ....................................... 9-5
Commands Arranged by Topic ......................................... 9-8
Appendix A-l
Proportional Width Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-2
Character Tables
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-6
Glossary
GL-1
Index
IN-1
Contents v

About This Guide
This user’s guide provides fully-illustrated, step-by-step
instructions for setting up and operating the SQ-850 and
SQ-2550 printers.
Finding your way around
Chapter 1 contains information on unpacking, setting up,
testing and connecting the printer, so be sure to read and
follow the instructions in this chapter first.
Chapters 2 and 3 include important information on paper
handling and general printer operation. This information is
necessary for the day-to-day operation of your printer.
Chapter 4 contains information designed to help you get the
most from your printer. This chapter includes advice on the
use of software commands, graphics, and user-defined
characters. Also, see Chapter 9 for a summary of printer
commands.
If the printer does not operate properly or the printed
results are not what you expect, see Chapter 7 for a list of
possible solutions.
Other chapters contain information on general maintenance,
use of the printer options, and specifications. You will also
find a glossary of printer terms and an index.
At the back of this guide is a Quick Reference Card with the
information you are most likely to need.
Note: The SQ-850 and SQ-2550 are basically the same printer
except that the SQ-2550 can accept wider paper. Therefore,
the illustrations in this guide show only the SQ-2550.
About This Guide 1

Conventions used in this guide
WARNINGS must be followed carefully to avoid
damage to your printer and computer.
CAUTIONS should be followed carefully to ensure
that your printer operates correctly.
Notes contain important information and useful tips on the
operation of your printer.
2 About This Guide

Introduction
The SQ-850 and SQ-2550 are the latest in EPSON’s advanced
line of 24-nozzle ink jet printers, combining high performance
and reliability with a wide range of exciting features.
Features
In addition to the high-quality printing and ease of operation
you have come to expect from EPSON printers, the SQ-850 and
SQ-2550 offer the following:
An improved control panel design that allows you direct
selection of all of the printer’s main features, such as
character font and pitch as well as a choice of normal or
condensed printing.
An advanced paper handling system that allows you to
easily switch between single sheets and continuous paper by
pressing the appropriate panel buttons. You can use single
sheets without removing the continuous paper, or you can
use continuous paper even while the optional Cut Sheet
Feeder is installed.
A short tear-off feature that saves paper. After you tear off
the latest sheet printed on continuous paper, the printer
feeds the paper back to the loading position so that you can
use all of the next sheet.
The ability to print on labels and envelopes.
A micro-adjustment feature that allows you to feed the
paper forward or backward in 1/180th of an inch
increments to finely adjust the top of form, loading, and
short tear-off positions.
Introduction 3