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Epson LQ-510X User Manual - Page 185

Dots are missing in the printed characters or graphics., Printed characters are not what you expected.

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Dots are missing in the printed characters or graphics. l A line of dots is missing in the printout. The print head is damaged. Stop printing and contact your dealer to have the printer repaired. l Dots are missing in random positions. There is either too much slack in the ribbon or the ribbon has come loose. Reinstall the ribbon cartridge. Printed characters are not what you expected. l The typestyle or characters that are set by your software cannot be printed. Check that the software is correctly installed for your printer. l You selected a font using SelecType, but the characters are printed in a different font. Your software may be overriding your SelecType setting. Check the font selected by your software. l The wrong characters are printed. The wrong graphics character set or international character set is selected. Check the DIP switch settings. l The characters printed are smaller than expected. Check the font selected through your software. Check the CONDENSED light on the control panel. If it is on, press the CONDENSED button to cancel the mode. 7-4 Troubleshooting

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	19
Assembling the Printer	21
Installing the Platen Knob	21
Installing the Ribbon Cartridge	22
Attaching the Paper Guide	27
Testing the Printer	29
Plugging in the Printer	29
Running the Self Test	29
Connecting the Printer to Your Computer	36
The Parallel Interface	36
Setting Up Your Application Software	39
CHAP 2-PAPER HANDLING	40
Selecting a Paper Feeding Method	41
Using Single Sheets	43
Loading Paper	43
Reloading During Printing	46
Using Continuous Paper	47
Positioning Your Continuous Paper Supply	47
Loading Continuous Paper	47
Switching Between Continuous and Single Sheets	55
Switching to Single Sheets	55
Switching Back to Continuous Paper	58
Printing on Special Paper	62
The Paper Thickness Lever	62
Multi-part Forms	65
Labels	66
Envelopes	67
CHAP 3-USING THE PRINTER	70
Operating the Control Panel	71
Selecting Typestyles	75
Character Fonts	75
Condensed Mode	79
Setting the DIP Switches	80
Changing a DIP Switch Setting	80
The DIP Switch Tables	81
The DIP Switch Functions	83
Page Length	84
Skip Over Perforation	85
Adjusting the Loading Position	86
Using Micro-adjustment	86
Using Short Tear-off	88
Adjusting the Tear-off Position	89
Selecting an International Character Set	91
Choosing a Character Set	93
Using the Data Dump Mode	95
CHAP 4-SOFTWARE AND GRAPHICS	97
Enhancing Your Printing	98
Character Spacing	98
Character Size	99
Special Effects and Emphasis	100
Graphics	103
The Print Head	104
The Graphics Command	107
Column Reservation Numbers	108
A Simple Graphics Program	108
Designing Your Own Graphics	109
User-defined Characters	113
Designing Your Characters	113
Defining Your Characters	115
Sending Information to Your Printer	117
Printing User-defined Characters	120
Copying ROM Characters to RAM	121
Letter Quality Characters	122
Mixing Print Styles	123
CHAP 5-USING THE PRINTER OPTIONS	125
The Cut Sheet Feeder	126
Installation	126
Paper Handling	130
Testing the Printer in the Cut Sheet Feeder Mode	133
Operating the Cut Sheet Feeder	135
Switching Between the Cut Sheet Feeder and Push Tractor	139
Removing the Cut Sheet Feeder	146
The Pull Tractor	148
Installation	148
Paper Handling	151
Removing the Pull Tractor	157
The Interface Boards	161
Choosing an Interface	161
Compatible Interfaces	162
Installation	162
#8143 New Serial Interface	170
CHAP 6-MAINTENANCE	171
Cleaning the Printer	172
Replacing the Ribbon	174
Transporting the Printer	180
CHAP 7-TROUBLESHOOTING	182
Printing	183
Paper Handling	188
Options	191
CHAP 8-TECHNICAL SPECIFICATIONS	193
Printer Specifications	194
Printing	194
Paper	195
Mechanical	199
Electrical	200
Environment	200
Interface Specifications	201
Pin Assignments for the Parallel Interface	201
Interface Timing	203
Printing Enabled/Disabled Signals and Control Conditions	204
Option Specifications	205
Cut Sheet Feeder	205
Initialization	207
Default Settings	207
CHAP 9-COMMAND SUMMARY	209
Using the Command Summary	210
Control Key Chart	212
Commands in Numerical Order	213
Commands Arranged by Topic	216
Printer Operation	216
MSB Control	219
Data Control	220
Vertical Motion	221
Horizontal Motion	227
Overall Printing Style	230
Print Size and Character Width	232
Print Enhancement	236
Word Processing	241
Character Sets	242
User-defined Characters	244
Graphics	246
APPENDIX	249
Proportional Width Table	250
Character Sets	254
GLOSSARY	258