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Epson LQ-1000 User Manual - Page 119

QX-10® and QX-16 Solutions, Maintenance, Changing the Print Head, WIDTH LPRINT 255 - water cooling

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QX-10® and QX-16 Solutions The format for the WIDTH statement for the Epson QX-10 and QX-16 computers is: WIDTH LPRINT 255 Maintenance To keep your LQ working like new, always keep it in a safe and clean place. Keep it away from dust, grease, and any heat sources. A safe temperature range is 41°F to 95°F. To clean the outside of the printer case, use a soft, clean cloth dampened with clear water. Stubborn stains can be removed with nonabrasive household cleaners. The inside front portion of the printer should also be cleaned periodically to get rid of dust and paper lint. First, turn the power switch OFF and unplug the power cord from the electrical outlet. Then remove the dust cover. Use a small vacuum cleaner and soft brush to clean inside the printer. Be careful not to bend or damage any of the parts inside the printer. With the power OFF, you can move the print head back and forth to clean under it. Once in a great while your LQ should be lubricated by an authorized Epson dealer. Changing the print head The expected life of an LQ print head is about 200 million strokes. See your Epson dealer for replacements. If the print head fails suddenly or long before its estimated lifetime is over, the problem is probably in another component of the printer. Take the LQ to your dealer for service. Removing the old print head Be sure the power is OFF before you touch the print head. If you have been printing, wait about 15 minutes to allow the print head to cool. D-8

Section	Page
FRONT MATTER	1
TABLE OF CONTENTS	4
INTRODUCTION	11
CHAP 1-SETTING UP YOUR LQ PRINTER	13
Unpacking Your Printer	13
Installing the Paper Feed Knob	15
Selecting the Right Location	16
Installing the Ribbon	17
Replacing the Ribbon.	20
Loading Single-Sheet Paper	20
Installing the Single-sheet Guide	20
Loading the Paper	21
Adjusting the Paper Thickness Lever	24
Turning On the Power	24
Operating the Control Panel	26
Off Line/On Line	26
Form Feed/Letter Quality	27
Line Feed/Draft	27
Selecting the Letter Quality or Draft Mode	28
Running the Self Test	28
Connecting Your Printer to Your Computer	29
The Parallel Interface	30
The Serial Interface	30
Printing Your First Document	31
CHAP 2-THE CUT SHEET FEEDER	32
Installing the Cut Sheet Feeder	32
Preparing the Paper for Loading	36
Loading Paper	37
Setting Up Your Word Processor For a Cut Sheet Feeder.	39
Printing With the Cut Sheet Feeder	40
Removing the Cut Sheet Feeder	41
Troubleshooting	43
Maintenance	44
CHAP 3-THE TRACTOR UNIT	46
Setting Up the LQ for Continuous-feed Paper	46
Installing the Tractor Unit	47
Loading Paper	48
Setting the Top-of-page Position	53
Installing the Paper Separator and Tractor Cover	53
Removing the Optional Tractor Unit	56
CHAP 4-USING THE LQ WITH COMMERCIAL SOFTWARE	57
CHAP 5-LQ FEATURES	59
ESCape and ASCII	59
Demonstration Programs	60
Running BASIC programs	61
Sending Control Codes to the Printer	62
Basic Widths	63
Pica Printing	63
Elite Printing	63
Fifteen Mode Printing	63
Letter Quality and Draft	64
Cancelling Modes	64
Resetting the Printer	64
Disabling a Program's Reset Code	65
Print Quality Command	66
Other Widths	66
Double-width Printing	66
Condensed Printing	67
Print Enhancements	68
Emphasized Mode	68
Double-strike	69
Underline Mode	70
Proportional Mode	70
Master Select	71
Superscript and Subscript	73
International Characters	73
Page Formatting	76
Margins	76
Skip-over-perforation	77
Line Spacing	77
Half-speed Mode	78
Printing to the End of the Page	78
CHAP 6-GRAPHICS AND USER-DEFINED CHARACTERS	79
Graphics	79
The Print Head	80
Dot Patterns	81
Eight-pin Graphics	81
Twenty-four-pin Graphics	81
Pin Labels	81
Graphics Command	83
Column Reservation Numbers	84
First Graphics Program	84
Using Hand-calculated Data to Print Graphics	85
Individual Graphics Options Commands	88
Reassigning Command	88
User-Defined Characters	89
Design Grids	89
Defining Your Own Characters	91
Data Numbers	91
Sending Information to the LQ	92
Printing User-Defined Characters	94
Copying ROM to RAM	95
Letter Quality Characters	96
Proportional Mode Characters	96
Superscripts and Subscripts	96
Mixing Print Styles	97
APPENDIX A-THE DIP SWITCHES	99
APPENDIX B-THE LQ CHARACTER SET AND ASCII TABLE	104
APPENDIX C-INSTALIING THE OPTION CATRIDGE	108
The Identity Module	109
The Font Module	110
Using the Option Cartridges	111
APPENDIX D-TROUBLESHOOTING AND MAINTENANCE	112
Diagnosing the Problem	112
Beeper Error Warnings	115
Hex Dump Mode	115
IBM PC BASIC Solutions	117
Applesoft BASIC Solutions	118
QX-10® and QX-16 Solutions	119
Maintenance	119
Changing the Print Head	119
APPENDIX E-WIDTHS OF THE PROPORTIONAL CHARACTERS	122
APPENDIX F-THE PARALLEL AND SERIAL INTERFACES	126
APPENDIX G-CHOOSING AND SETTING UP OPTIONAL INTERFACES	131
APPENDIX H-TECHNICAL SPECIFICATIONS	139
APPENDIX I-COMMAND SUMMARY	143
INDEX	173
QUICK REFERENCE	180