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Epson LQ-850X User Manual - Page 216

comes off, you may drop the printer., by the compartment cover on the right side. If this cover

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7. Insert the print head protector as shown below. 8. Reattach the printer cover unit. WARNING: When you carry the printer, never hold it by the compartment cover on the right side. If this cover comes off, you may drop the printer. Maintenance 6-11

Section	Page
FRONT MATTER	1
TABLE OF CONTENTS	6
INTRODUCTION	9
Features	9
Options	10
About This Manual	12
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
Solving Any Self Test Problems	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
Selecting Typestyles	88
Character Fonts	88
Character Spacing	92
Condensed Mode	93
Setting the DIP Switches	94
Changing DIP Switch Setting	94
The DIP Switch Tables	95
The DIP Switch Functions	98
Page Length	100
Skip Over Perforation	101
Adjusting the Loading Position	103
Using Micro-adjustment	104
Using Short Tear-off	106
Adjusting the Tear-off Position	108
Selecting an International Character Set	110
Choosing a Character Set	112
Using the Data Dump Mode	114
CHAP 4-SOFTWARE AND GRAPHICS	117
Enhancing Your Printing	118
Print Quality and Fonts	118
Character Spacing	119
Character Size	120
Special Effects and Emphasis	121
Selecting Typestyles With Master Select	124
Graphics	126
The Print Head	127
The Graphics Command	130
Column Reservation Numbers	131
A Simple Graphics Program	132
Designing Your Own Graphics	133
User-defined Characters	138
Designing Your Characters	138
Defining Your Characters	140
Sending Information to Your Printer	142
Printing User-defined Characters	145
Copying ROM Characters to RAM	146
Letter Quality Characters	147
Mixing Print Styles	148
CHAP 5-USING THE PRINTER OPTIONS	150
The Cut Sheet Feeder	151
Installation	152
Paper Handling	157
Testing the Printer in the Cut Sheet Feeder Mode	161
Loading Envelopes	163
Operating the Cut Sheet Feeder	165
Using Continuous Paper	167
Loading Single Sheets	172
Removing the Cut Sheet Feeder	173
The Pull Tractor	177
Installation	177
Paper Handling	180
Removing the Pull Tractor	186
The Interface Boards	190
Choosing an Interface	190
Compatible Interfaces	191
Installation	191
#8143 New Serial Interface	204
CHAP 6-MAINTENANCE	206
Cleaning the Printer	207
Replacing the Ribbon	209
Transporting the Printer	214
CHAP 7-TROUBLESHOOTING	218
Problems and Solutions	219
Power Supply	221
Printing	222
Paper Handling	233
Options	244
CHAP 8-TECHNICAL SPECIFICATIONS	254
Printer Specifications	255
Printing	255
Paper	257
Mechanical	261
Electrical	262
Environmental	262
Interface Specifications	263
Parallel Interface	263
Serial Interface	266
Option Specifications	268
Initialization	270
Default Settings	271
CHAP 9-COMMAND SUMMARY	272
Using the Command Summary	273
Examples	274
Control Key Chart	275
Commands in Numerical Order	276
Commands Arranged by Topic	279
Printer Operation	279
MSB Control	282
Data Control	283
Vertical Motion	284
Horizontal Motion	290
Overall Printing Style	293
Print Size and Character Width	295
Print Enhancement	299
Word Processing	304
Character Sets	305
User-defined Characters	307
Graphics	309
APPENDIX	312
Proportional Width Table	313
Character Sets	317
GLOSSARY	321