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Epson LQ-2550 User Manual - Page 151

The Printout is Not what You Expect, Single Sheets Do Not Feed Properly

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l If printing on envelopes is faint, use the PLATEN GAP ADJUST button. See Chapter 3 for details. The printout is not what you expect The wrong international character set may be selected. See Chapter 3. The wrong character table (italics or Epson Extended Graphics) may be selected. See Chapter 3 and Appendix B. The printer may not be securely connected to the computer. Check both ends of the cable between the printer and the computer. See that your software's font, size, or page layout settings are correctly set up for your printer. The application program may be changing the SelecType settings. Use the program's setup procedure to remove codes that interfere with SelecType, or use the program's printer control codes instead of SelecType. (See your software manual.) Single sheets do not feed properly Be sure that PAPER SELECT is set to FRICTION. The paper may be too large or too small. See Appendix A. Be sure the paper guide is in the upright position and the edge guides are properly adjusted. See Chapter 2. Be sure that the paper is not jammed. Be sure your software is set correctly. Choose your software's hand-fed or single sheet mode if available. Use a form feed at the end of each page if possible. Continuous paper does not feed properly l Be sure that PAPER SELECT is set to TRACTOR. l See that the holes of the paper fit correctly over the sprockets. 6-4 Troubleshooting

Section	Page
FRONT MATTER	1
TABLE OF CONTENTS	4
INTRODUCTION	6
Features	6
Options	7
About This Guide	8
Where to Get Help	9
CHAP 1-SETTING UP THE PRINTER	10
Unpacking the Printer	11
Removing the Protective Materials	11
Choosing a Place for the Printer	15
Assembling the Printer	16
Installing the Platen Knob	16
Installing the Ribbon Cartridge	18
Attaching the Paper Guide	21
Testing the Printer	24
Connecting to a Power Supply	24
Running the Self Test	25
Connecting the Printer to Your Computer	31
The Parallel Interface	31
The Serial Interface	33
Setting Up Your Application Software	36
Choosing from a Menu	37
CHAP 2-PAPER HANDLING	38
Using Single Sheets	39
Loading a Sheet	39
Reloading During Printing	42
Using Continuous Paper	42
Positioning your Continuous Paper Supply	42
Loading Continuous Paper	43
When You Have Finished Printing	50
Reversing the Paper to the Standby Position	51
Switching Between Continuous and Single Sheets	53
Switching to Single Sheets	53
Switching Back to Continuous Paper	56
Printing on Special Paper	59
Multi-Part Forms	59
Labels	60
Envelopes	63
CHAP 3-USING THE PRINTER	65
Operating the Control Panel	66
The Display	66
The Lights	67
The Buttons	68
Other Control Panel Features	72
SelecType Settings	72
Using SelecType	74
Selecting a Main Menu Mode	76
LOAD MACRO	77
CHANGE MACRO	79
CHANGE DEFAULTS	82
PRINT OUT SETTINGS	87
CLEAR OUT MACROS	88
Page Length	90
Skip Over Perforation	92
Setting the Loading Position	94
Adjusting the Loading Position	94
Short Tear-Off	95
Selecting Typestyles	97
Fonts	98
Pitch	101
Condensed Mode	102
Choosing an International Character Set	103
Choosing a Character Table	104
CHAP 4-USING SOFTWARE AND GRAPHICS	106
Using the LQ-2550 With Application Programs	107
Using Printer Selection Menus	107
A Quick Test	107
Using Word Processors	108
Using Spreadsheets	108
Using Graphics Software	109
Computer-Printer Communication	110
Escape Sequences	111
Printer Commands	111
Using the Command Summary	112
Sending Printer Commands from Within Your Software Program	112
Enhancing Your Printing	112
Character Size	113
Special Effects and Emphasis	113
Selecting Typestyles with Master Select	116
Graphics	118
The Print Head	118
Dot Pattern	119
Color Graphics	119
Twenty-Four-Pin Graphics	120
Pin Labels	120
The Graphics Command	121
Column Reservation Numbers	122
A Simple Graphics Program	123
Using Hand-Calculated	123
Individual Graphics Option Commands	127
The Reassigning Command	127
User-Defined Characters	128
Designing Your Characters	128
Design Grids	129
Data Numbers	131
Sending Information to Your Printer	132
Printing User-Defined Characters	134
Copying ROM Characters to RAM	135
Letter Quality Characters	135
Proportional Mode Characters	136
Superscripts and Subscripts	136
Mixing Print Styles	137
CHAP 5-MAINTENANCE AND TRANSPORTATION	139
Cleaning the Printer	140
Replacing the Ribbon	141
Transporting the Printer	145
CHAP 6-TROUBLESHOOTING	148
Troubleshooting	149
Problems and Solutions	149
The Printer Does Not Print	149
The Printer Stops Printing	149
The Printout is Spaced Incorrectly	150
The Printout is Faint or Uneven	150
The Printout is Not what You Expect	151
Single Sheets Do Not Feed Properly	151
Continuous Paper Does Not Feed Properly	151
Cut Sheet Feeder Does Not Load Paper Correctly	152
The Short Tear-Off Feature Does Not Work Properly	152
Color Printing Is Not What You Expect	152
Data Dump Mode	153
CHAP 7-USING PRINTER OPTIONS	154
The Cut Sheet Feeder	155
Installation	155
Loading Paper	159
Testing the Printer In The Cut Sheet Feeder Mode	162
Loading Envelopes	164
Using the Cut Sheet Feeder	166
Switching between the Cut Sheet Feeder and Continuous Paper	170
Loading Single Sheets	171
Removing The Cut Sheet Feeder	173
The Pull Tractor	174
Installation	174
Loading Paper	177
Removing the Pull Tractor	184
Interface Boards	186
Choosing an Interface	186
Compatible Interfaces	186
Installing the Interface Board	187
The Multi-Font Module	198
Installation	198
Selecting a Font	200
CHAP 8-COMMAND SUMMARY	201
Commands in Numerical Order	205
Commands Arranged by Topic	208
Printer Operation	208
MSB Control	211
Data Control	212
Vertical Motion	213
Horizontal Motion	218
Overall Printing Style	221
Print Size and Character Width	223
Print Enhancement	227
Word Processing	230
Character Tables	231
User Defined Characters	232
Graphics	234
APPENDIX A-TECHNICAL SPECIFICATIONS	237
Printer Specifications	238
Double-Bin Cut Sheet Feeder (Optional)	242
Interface Specifications	245
Initialization	249
Default Settings	250
GLOSSARY	259