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Epson LQ-950 User Manual - Page 271

computer. See Data Dump Mode in for more, on-board defects. If any abnormality is found

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Problem Using an optional interface, the printer does not operate properly (continued). The printer does not print or the printout is not what you expected (continued). Solution Two cables may be installed on the printer; only one cable may be attached at any time. If the printer still does not operate properly after checking the above points, run a self test of the interface to make sure that there are no on-board defects. If any abnormality is found, contact your Epson dealer. Note: If you are still having problems after working through the solutions in this section, you may want to try using the data dump mode, a mode that helps advanced users determine the causes of communication problems between the printer and the computer. See Data Dump Mode in Chapter 3 for more information. Troubleshooting 7-37

Section	Page
FRONT MATTER	1
CONTENTS	6
INTRODUCTION	9
Features	9
Options	10
About This Manual	12
Application Notes	14
Where to Get Help	14
CHAP 1-SETTING UP THE PRINTER	15
Unpacking the Printer	16
Checking the Parts	16
Removing the Protective Materials	17
Choosing a Place for the Printer	22
Assembling the Printer	24
Installing the Platen Knob	24
Installing the Ribbon Cartridge	25
Attaching the Paper Guide	29
Testing the Printer	32
Plugging in the Printer	32
Running the Self Test	33
Checking the Operation	41
Connecting the Printer to Your Computer	44
The Parallel Interface	45
The Serial Interface	46
Setting Up Your Application Software	48
Choosing From a Menu	48
CHAP 2-PAPER HANDLING	49
Using Single Sheets	50
Loading Paper	50
Reloading During Printing	53
Using Continuous Paper	54
Positioning Your Continuous Paper Supply	54
Loading Continuous Paper	55
Switching Between Continuous and Single Sheets	64
Switching to Single Sheets	64
Switching Back to Continuous Paper	69
Printing on Special Paper	73
The Paper Thickness Lever	73
Multi-part Forms	77
Labels	78
Envelopes	80
CHAP 3-USING THE PRINTER	83
Operating the Control Panel	84
Setting the DIP Switches	88
Changing a DIP Switch Setting	88
The DIP Switch Tables	89
The DIP Switch Functions	92
Page Length	93
Skip Over Perforation	94
Adjusting the Loading Position	96
The Loading Position	96
Using Micro-adjustment	97
Using Short Tear-off	99
Adjusting the Tear-off Position	101
Selecting Typestyles	103
Character Fonts	103
Character Spacing	106
Condensed Mode	107
Selecting an International Character Set	108
Selecting a Graphics Character Set	110
Choosing a Character Table	113
Using the Data Dump Mode	117
CHAP 4-SOFTWARE AND GRAPHICS	120
Enhancing Your Printing	121
Print Quality and Fonts	121
Character Spacing	122
Character Size	123
Special Effects and Emphasis	124
Selecting Typestyles With Master Select	127
Graphics	129
The Print Head	130
The Graphics Command	133
Column Reservation Numbers	134
A Simple Graphics Program	135
Designing Your Own Graphics	136
User-defined Characters	141
Designing Your Characters	141
Defining Your Characters	143
Sending Information to Your Printer	145
Printing User-defined Characters	148
Copying ROM Characters to RAM	149
Letter Quality Characters	150
Mixing Print Styles	151
CHAP 5-USING THE PRINTER OPTIONS	153
The Cut Sheet Feeder	158
Installation	159
Paper Handling	164
Testing the Printer in the Cut Sheet Feeder Mode	168
Loading Envelopes	170
Operating the Cut Sheet Feeder	172
Using Continuous Paper	174
Loading Single Sheets	179
Removing the Cut Sheet Feeder	180
The Pull Tractor	184
Installation	184
Paper Handling	187
Removing the Pull Tractor	193
The Multi-Font Module	197
Installation	200
Selecting a Font	203
The Interface Boards	204
Choosing an Interface	204
Compatible Interfaces	205
Installation	205
#8143 New Serial Interface	221
CHAP 6-MAINTENANCE	223
Cleaning the Printer	224
Replacing the Ribbon	226
Transporting the Printer	231
CHAP 7-TROUBLESHOOTING	235
Problems and Solutions	236
Power Supply	238
Printing	239
Paper Handling	250
Options	261
CHAP 8-TECHNICAL SPECIFICATIONS	272
Printer Specifications	273
Printing	273
Paper	275
Mechanical	279
Electrical	280
Environmental	280
Interface Specifications	281
Parallel Interface	281
Serial Interface	284
Option Specifications	286
Cut Sheet Feeder	286
Initialization	288
Default Settings	289
CHAP 9-COMMAND SUMMARY	290
Using the Command Summary	291
Examples	292
Control Key Chart	293
Commands in Numerical Order	294
Commands Arranged by Topic	297
Printer Operation	297
MSB Control	300
Data Control	301
Vertical Motion	302
Horizontal Motion	308
Overall Printing Style	311
Print Size and Character Width	313
Print Enhancement	317
Word Processing	322
Character Tables	323
User-defined Characters	325
Graphics	327
APPENDIX	330
Proportional Width Table	331
Character Tables	335
GLOSSARY	337
INDEX	346