Digital Equipment LG06 User manual

LG06 / LG12
Text and Graphics Printers
User’s Manual
Order Number: FW–LG0A1–A8
Digital Equipment Corporation •Merrimack, NH 03054
latigid 

Für Bundesrepublik Deutschland
For the Federal Republic of Germany
Pour la République féderale d’Allemagne
Bescheinigung des Herstellers/Importeurs:
Heirmit wird bescheinigt, daß die Einrichtung in Übereinstimmung mit den
Bestimmungen der DBP–Verfügung 1046/84, Amtsblatt Nr. 163/1984, un
Grenzwertklasse “B” der VDE0871, funkenstört ist.
Der Deutschen Bundespost (DBP) wurde das Inverkehrbringen dieses Gerätes
angezeigt und die Berechtigung zur Überprüfung der Serie auf Einhaltung der
Bestimmungen eingeräumt.
Betreiberhinweis:
Wir sind verpflichtet, Sie auf folgende Fakten hinzuweisen (DBP–Verfügung
1046/84, §2, Abschnitt 5):
Das Gerät wurde funktechnisch sorgfältig entstört und geprüft. Beim
Zusammenschalten mit anderen EDV–Geräten können im ungünstigsten Fall
Funkstören entstehen, die kann im Einzelnen zusätzliche Funkenstörungs–
Maßnahmen durch den Benutzer erfordern.
Externe Datenkabel:
Sollte ein Austausch der von Digital spezifizierten Datenkabel nötig werden,
muß der Betreiber für eine enwandfreie Funkenstörung sicherstellen, daß
Austauschkabel im Aufbau un Abschirmqualität dem Digital Originalkabel
entsprechen.

1st Edition, April 1993
Digital Equipment Corporation 1993
All Rights Reserved
The information in this document is subject to change without notice and should
not be construed as a commitment by Digital Equipment Corporation. Digital
Equipment Corporation assumes no responsibility for any errors that may appear
in this document.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation:
DATATRIEVE
DEC
DECmate
DECset
DECsystem
DECUS
DECwriter
DECxpress
DIBOL
IVAX
MASSBUS
PDP
P/OS
Professional
Rainbow
RSTS
RSX
Scholar
ULTRIX
UNIBUS
VAX
VMS
VT
Work Processor
The Digital Logo
Epson and FX are trademarks of Epson Seiko Corporation.
IBM and Proprinter are registered trademarks of International Business Machines
Corporation.
FCC USER STATEMENT
NOTICE:
This equipment generates, uses, and may emit radio frequency. The equipment has
been type tested and found to comply with the limits for a Class A computing device
pursuant to Subpart B of Part 15 of FCC rules, which are designed to provide reason-
ableprotectionagainstsuchradiofrequencyinterference.Operationofthisequipment
in a residential area may cause interference in which case the user at his own expense
willberequiredtotakewhatevermeasuresmayberequiredtocorrecttheinterference.

i
Table of Contents
1 Introduction
About This Manual 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The LG06 / LG12 Text and Graphics Printers 1–3. . . . . . . . . . . . . . . . . . . . .
Printer Features 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printer Command and Control 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Control 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphics and Vertical Formatting 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Matrix Printing 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printing Speed 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Installation
Before You Begin... 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Requirements 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select a Site 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove the Shipping Restraints 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LG06 Shipping Restraints 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LG12 Shipping Restraints 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the Interface and Power Cables 2–13. . . . . . . . . . . . . . . . . . . . . . . . . .
Test the Printer 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Operating the Printer
Turning the Printer On and Off 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating States 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On–Line 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off–Line 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ii
The Operator Control Panel 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring the Printer with the Control Panel 3–5. . . . . . . . . . . . . . . . .
Switches and Indicators 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Message Display 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Lamps 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ON LINE Switch 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FF (Form Feed) Switch 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LF (Line Feed) Switch 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VIEW Switch 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLEAR Switch 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
R/S (Run/Stop) Switch 3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SET TOF (Top–Of–Form) Switch 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . .
ENTER Switch 3–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UP, DOWN, NEXT, and PREV Switches 3–9. . . . . . . . . . . . . . . . . . . . . .
Micro–Stepping 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Paper in an Empty Printer 3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Paper After a “Paper Out” Message 3–12. . . . . . . . . . . . . . . . . . . . . .
Unloading Paper 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Top–of–Form 3–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting a Font 3–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing and Installing the Ribbon 3–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearing Paper Jams 3–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Printer Configuration
Printer Configuration 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Printout 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Procedure 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Saving Configuration Values 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Configuration Values 4–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Printer Emulations 4–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Diagram 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

iii
5 Interfaces
Printer Interfaces 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dataproducts Parallel Interface 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dataproducts Interface Signals 5–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dataproducts Parallel Interface Configuration 5–4. . . . . . . . . . . . . . . . . .
Centronics Parallel Interface 5–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Centronics Interface Signals 5–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Centronics Parallel Interface Configuration 5–6. . . . . . . . . . . . . . . . . . . .
Terminating Resistors 5–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EIA–232D Serial Interface 5–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EIA–232D Interface Signals 5–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EIA–232D Serial Interface Protocol 5–10. . . . . . . . . . . . . . . . . . . . . . . . . .
EIA–232D Serial Interface Configuration 5–10. . . . . . . . . . . . . . . . . . . . .
6 Routine Service and Diagnostics
Routine Service 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Requirements 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Cleaning 6–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Cleaning 6–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printer Self–Tests 6–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running the Self–Test 6–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hex Code Printout 6–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Messages 6–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Messages Requiring Field Service Attention 6–9. . . . . . . . . . . . . . .
7 Digital Emulation
Digital Emulation 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Digital Emulation 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bar Code Printing 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Character Printing 7–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Codes 7–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

iv
ASCII Control Codes 7–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additional Control Codes 7–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8–Bit to 7–Bit Control Code Conversion 7–11. . . . . . . . . . . . . . . . . . . . . .
7–Bit to 8–Bit Control Code Conversion 7–11. . . . . . . . . . . . . . . . . . . . .
Escape Codes 7–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Escape Sequences 7–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Sequences 7–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Parsing Requirements 7–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Control Codes Are Described in This Chapter 7–17. . . . . . . . . . . . . . . . .
Control Code Index and Descriptions 7–18. . . . . . . . . . . . . . . . . . . . . . . . . .
Default Values and States 7–130. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 IBM Proprinter Emulation
IBM Proprinter Emulation 8–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting IBM Proprinter Emulation 8–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting IBM Proprinter Emulation via the Control Panel 8–2. . . . . . . .
Selecting IBM Proprinter Emulation via DECIPEM 8–3. . . . . . . . . . . . .
Selecting IBM Proprinter Emulation via SOCS 8–4. . . . . . . . . . . . . . . . .
Exiting IBM Proprinter Emulation 8–4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphics 8–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dot Density Versus Printing Speed 8–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Detection 8–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Character Sets 8–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code Pages 8–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code Page Tables 8–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Control Codes are Described in This Manual 8–7. . . . . . . . . . . . . . . . . .
Ignored Codes 8–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Code Index and Descriptions 8–10. . . . . . . . . . . . . . . . . . . . . . . . . .
9 Epson FX Emulation
Epson Emulation 9–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emulation Exceptions and Differences 9–2. . . . . . . . . . . . . . . . . . . . . . .

v
IBM Proprinter Emulation 9–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting Epson Emulation 9–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Default Values and States, Epson Emulation 9–4. . . . . . . . . . . . . . . . . . . . . . .
Epson Character Sets 9–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Escape Sequences 9–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Set and Reset Codes 9–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Control Codes are Described in this Chapter 9–7. . . . . . . . . . . . . . . . . .
Control Code Index and Descriptions 9–8. . . . . . . . . . . . . . . . . . . . . . . . . .
10 Graphics
Printing Graphic Images 10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proprinter Compatible Bit Image Graphics 10–2. . . . . . . . . . . . . . . . . . . . . . . .
Making a Bit Image Pattern 10–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Produce Bit Images 10–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bit Image Density 10–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bit Image Programming Format 10–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bit Image Sample Program 10–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Character Sets
Introduction 11–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selecting the Character Set and Language 11–2. . . . . . . . . . . . . . . . . . . . . . . .
OCR–A and OCR–B 11–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Numeric Character Location Listing 11–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User–Preference Supplemental (UPS) Character Set 11–7. . . . . . . . . . . . . . . .
Character Sets Without National Character Sets 11–14. . . . . . . . . . . . . . . . . . . .
DEC Supplemental Graphic Character Set 11–29. . . . . . . . . . . . . . . . . . . . . . . .
VT100 Special Graphic Character Set 11–32. . . . . . . . . . . . . . . . . . . . . . . . . . .
DEC Technical Character Set 11–36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Building Large Mathematical Symbols 11–39. . . . . . . . . . . . . . . . . . . . . . .

vi
APPENDICES
A Bar Codes
Bar Codes A–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select Bar Codes Attributes Sequence (DECSBCA) A–3. . . . . . . . . . . . . . . .
Start Bar Coding (DECBARC) A–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Bar Coding (Return From Other Coding System: ROCS) A–6. . . . . . . .
Bar Code Characteristics A–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Number of Bars Per Character A–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bar Code Character Set A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STOP, START, and CENTER Code Characters A–8. . . . . . . . . . . . . . . . .
Null Characters A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intercharacter Gap A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Number of Characters in a Bar Code A–8. . . . . . . . . . . . . . . . . . . . . . . . .
Checksums A–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parity A–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multiple Bar Codes A–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bar Code Styles A–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Code 39 A–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Extended Code 39 A–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Specifications
Cleaning Interval B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ribbon Specifications B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Paper Specifications B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Paper B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printer Dimensions B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interfaces B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Environmental Characteristics B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Relative Humidity B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vii
Acoustic Noise Level B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Power B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Rating B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Data Input Rate B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printing Rates B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duty Cycle B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Character Set Charts
Introduction C–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proprinter Character Set Charts C–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Emulation Character Set Charts C–6. . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Emulation Languages Substitution Table C–9. . . . . . . . . . . . . . . . . . .
Digital Special Character Sets and ISO Charts C–10. . . . . . . . . . . . . . . . . . . . .
D Interface Configuration with the VMS Operating System
Parallel Interface D–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Interface D–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E Type Family IDs, Font IDs, and Font File IDs
“Built–in” Font File IDs E–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Font File ID Field Definitions E–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Type Family IDs E–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Font File IDs E–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DEC Built–in 1 (Data Processing) E–5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Correspondence Print E–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OCR A E–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OCR B E–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressed Print E–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High Speed Draft E–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Draft Plot E–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

viii
Low Density Plot E–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Correspondence Plot E–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LG Near Letter Quality E–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
F Print Samples
Introduction F–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Creating Block Characters F–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bar Codes F–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Logos F–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sixel Graphics F–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forms F–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary
Index

1–1Introduction
1 Introduction
Chapter Contents
About This Manual 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The LG06 / LG12 Text and Graphics Printers 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Printer Features 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printer Command and Control 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Control 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Graphics and Vertical Formatting 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Line Matrix Printing 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Printing Speed 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2 Introduction
About This Manual
This manual is designed so you can quickly find the information you need to
operate and maintain your LG06 or LG12 printer.
How to Locate Information
•Use the Table of Contents at the front of the manual.
•Use the Chapter Contents listed on the first page of each chapter.
•Use the alphabetical Index at the back of the manual.
Warnings and Special Information
Read and comply with all information highlighted under special headings:
WARNING
Conditions that could harm you as well as damage the equipment.
CAUTION
Conditions that could damage the printer or related equipment.
IMPORTANT
Information vital to proper operation of the printer.
NOTE: Information affecting printer operation.
Glossary
The Glossary defines computer terms and acronyms used in this manual. It is
located just before the Index.

1–3Introduction
Printing Conventions in This Manual
Switches, indicators, and switch positions labeled on the printer are printed
uppercase. Example: Press the ON LINE switch.
Messages that appear on the control panel display are printed in initial capital
letters and set off with quotation marks (except for conjunctions, which are
all lowercase). Example: “Save Config” appears on the message display.
The LG06 / LG12 Text and Graphics Printers
LG06 and LG12 line matrix printers use variable–speed shuttles, micro–step
paper feed control, and multi–phase hammer firing. These printers generate a
wide range of horizontal and vertical dot densities with no speed penalties.
The LG06 and LG12 printers use the same operating and emulation
firmware. The printers differ mainly in size, the number of hammers on the
hammer bank, and speed of printing. The LG12 is larger and faster than the
LG06. The LG12 has 88 print hammers, the LG06 has 49 hammers. The
electromechanical drive elements of the hammer banks also differ, but are
transparent to the user. Both printers are fast and quiet, designed for years of
trouble–free operation.
Printer Features
Printer Command and Control:
•Three command code protocols (emulations) are selectable from the
control panel and controlled by software —
1) Digital (emulates the Digital LG02 printer and is the default
operating mode)
2) IBM Proprinter III XL
3) Epson FX 850/1050
•Three built–in interfaces: Centronics parallel, Dataproducts parallel,
RS–232D serial

1–4 Introduction
Output Control:
•Five printing modes —
1) Data Processing (DP)
2) Correspondence
3) High Speed (HS)
4) OCR–A (10 cpi only)
5) OCR–B (10 cpi only)
•Selectable alternate horizontal and vertical dot densities enable you
to tailor output to a wider variety of printing requirements
•Selectable forms length
•Character–by–character attribute specification—
1) Selectable pitch: normal, expanded, and compressed
2) Emphasized (shadow) print
3) Bold print
4) Italic print
5) Overscoring
4) Single underline
6) Double underline
5) Superscript and subscript printing
•Block characters
•Bar codes
•Resident multinational character sets
Graphics and Vertical Formatting:
•Two resident graphics protocols—
1) DEC sixel graphics
2) IBM Proprinter bit–image graphics
•Programmable electronic vertical formatting provides rapid vertical
paper movement to specified lines for printing repetitive and
continuous forms. Two methods are available—
1) Electronic Vertical Format Unit (EVFU)
2) Vertical Tabs

1–5Introduction
Diagnostics:
•Built–in diagnostic self–tests
•Configuration printout
•Test pattern printout
•Data stream hexadecimal code printout
Line Matrix Printing
The LG06 and LG12 are line matrix impact printers: they create characters
by printing patterns of ink dots on paper, an entire line at a time. The dot
pattern of each text character is stored in printer memory on a logical grid
called the dot matrix. (See Figure 1–1.)
The printed dots are made by a row of hammer springs mounted on a shuttle
that sweeps rapidly back and forth. Printer logic divides every printable line
into horizontal dot rows. With each lateral sweep of the shuttle, the hammer
springs put dots at the required positions for the entire line by striking a
moving ink ribbon and the paper.
When the shuttle reaches the end of a sweep, it reverses direction, the paper
is advanced one dot row, and the hammers print the next row of dots as the
shuttle moves in the opposite direction. (See Figure 1–2.)
After a line of characters is printed, hammer action stops while the paper is
advanced to the first dot row of the next print line. The number of rows
allowed for line separation depends on the line spacing you select.
PATTERN STORED IN PRINTER LOGIC AS A DOT
MATRIX.
Figure 1–1. Dot Matrix Character Formation

1–6 Introduction
DOT
ROW START PAPER
ADVANCES
PAPER
FEED
PAPER
ADVANCES
SPACE
1
2
3
4
5
6
7
8
9
10
11
12
1
2
*
**
USED FOR LOWERCASE DESCENDER ONLY
USED FOR UNDERLINE AND LOWERCASE DESCENDER
*
**
CHARACTER
LINE
DIRECTION OF SHUTTLE MOVEMENT
1 HAMMER
PRINT SPAN 1 HAMMER PRINT SPAN
Figure 1–2. Dot Matrix Line Printing
Printing Speed
The speed of text printing is measured in lines per minute (lpm). This speed
is directly proportional to the number of dot rows required to produce a
character line, regardless of the number of characters in the line. More dot
rows are required to print lowercase characters with descenders; conse-
quently, those character lines print at a fractionally lower rate.
The LG06 and LG12 also print dot–addressable graphic images. The speed
of graphics plotting is measured in inches per minute (ipm). Unidirectional
plotting produces slightly better print quality, and takes about twice as long
as bidirectional plotting. You can select either plotting mode from the control
panel.
Printing and plotting rates also vary according to the print mode you select.
Print mode refers to the way you instruct the printer to create characters. If,
for example, you select near letter quality (NLQ) mode, the printer uses more
dot rows to form characters than if you choose high speed (HS) mode.
Character formation and print speed are faster in HS mode because fewer dot
rows are used to form characters. Vertical dot density is thus a factor in
printing speed. Nominal printing rates for both printers are in Appendix B.

2–1Installation
2 Installation
Chapter Contents
Before You Begin... 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Requirements 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Select a Site 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove the Shipping Restraints 2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LG06 Shipping Restraints 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LG12 Shipping Restraints 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect the Interface and Power Cables 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test the Printer 2–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Installation
Before You Begin...
Read this chapter carefully before installing and operating the printer. The
LG06 and LG12 are easy to install, but for your safety, and to protect
valuable equipment, perform all the procedures in this chapter in the order
presented.
Power Requirements
Connect the printer to a power outlet rated at 100–120 Vac or 200–240 Vac at
50 or 60 Hz. The printer automatically senses and adjusts itself to conform to
the correct voltage range. Primary circuit protection is built into the printer:
the power switch is also a circuit breaker. Consult an electrician if printer
operation affects local electrical lines. See Appendix B for power
specifications.
IMPORTANT
It is recommended that printer power be supplied from a separate ac
circuit protected at 20 amperes for 120 volts or 10 amperes for 230 volts
at 50 or 60 Hertz.
Select a Site
Select a printer site that:
•Permits complete opening of the printer cover and both doors of the
floor cabinet. (See Figure 2–1.)
•Allows at least three feet of clearance behind the printer. (This
permits air to circulate freely around the printer and provides access
to the paper stacking area.)
•Has a proper power source
•Is relatively dust–free.
•Is located within 9 meters (30 feet) of the host computer when using
the parallel interface and 15 meters (50 feet) when using the serial
interface
•Has a temperature range of 10°C to 35°C (50°F to 95°F) and a
relative humidity from 10% to 90%.