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Epson LQ-1500 Maintenance, The paper-outdetector, Cleaning the LQ-1500, line, LF button, SHEET LOAD button

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•LF button -- stands for line feed. When you’re off line, tapping this button advances the paper one line at a time. To advance multiple lines, hold down the LF button. Do not perform continuous line feeds for more than two minutes.

•SHEET LOAD button -- opens the paper bail and loads single- sheet paper into the printer.

The paper-out detector

The printer is equipped with a device which warns you that the printer is out of paper. When your paper runs out, printing stops, the PAPER OUT light goes on, and the printer buzzer sounds five times.

When you have loaded more paper, the PAPER OUT light goes off. Printing can be resumed in one of two ways. If you are in the middle of printing, press the ON LINE button. If you want to reinitialize the printer, turn the power switch OFF and then back ON.

You can turn off the paper-out detector in two ways: by DIP switch 1-2 on the interface card, or by a control code sent from the computer. Turning off the paper-out detector tells the printer to ignore the paper- out sensor and allows you to print to the bottom of the page. Some computers will stop the printer before the end of the page, even though DIP switch 1-2 is down (off). If this happens, you may need to consult your dealer about the interface between your computer and printer. You may also consult your software dealer for further infor- mation.

Maintenance

As with any mechanical device, the best maintenance of your LQ-1500 is preventive maintenance. You’ve already started by choosing a clean, dust-free location with a comfortable temperature range. Of course, you will change your ribbon cartridge whenever it loses quality through use.

In addition, your printer requires periodic cleaning. Here are a few tips on how to perform this maintenance properly.

Cleaning the LQ-1500

You should clean the outside of the printer case whenever it appears to be dirty. Use a clean damp rag and alcohol. Be careful not to drip alcohol on the printer mechanism.

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Contents

Page Page FCC COMPLIANCE STATEMENT FOR AMERICAN USERS Copyright © 1984 by Epson America, Inc Torrance, California Contents Installing Paper and Paper Feeders Types of Paper and Paper Feeders Pin-feedpaper and tractor unit Platen release lever Print head adjustment lever The LQ-1500Character Set Widths of the Proportional Characters ASCII Code Conversion Chart Figures Tables Introduction LQ-1500Features About This Manual Setting Up Your LQ-1500 Finding a Suitable Location Fig-we 1-1.Unpacking the LQ-1500 during operation. Here are some additional suggestions to follow: (see Figure 1-2) Getting to Know Your Printer Installing the paper feed knob Page Removing the dust cover Removing the front cover Discovering what’s inside Installing the Ribbon Cartridge Figure 1-7.Ribbon cartridge 1-8) Now Figure 1-8.Ribbon installation Figure 1-9.Ribbon operation the Installing the Sheet Guide Assembling the three pieces Attaching the sheet guide Page Figure 1-11.Paper guide position Figure 1-12.Sheet guide installation Connecting the LQ-1500to Your Computer Locating the interface card Page Installing the interface card Attaching the cable to the printer Connecting the printer cable Setting the DIP Switches Figure 1-18.Interface connection to computer WARNING: The DIP switches we are discussing are in the LQ-1500 printer. Special knowledge is required to set these switches while the Switch1 Switch Table 1-2.Settings for switch Function Switches and Table 1-3.International character set switch settings Installing the Power Cord Operation and Maintenance Controls and Indicators The power switch The control panel Power switch Figure 2-1.Controls and indicators •ON LINE light --glows green when data reception is possible The paper-outdetector Maintenance Cleaning the LQ-1500 Other maintenance Installing Paper and Paper Feeders Types of Paper and Paper Feeders Single-sheetpaper and sheet guide Pin-feedpaper and tractor unit More Printer Parts Platen release lever Print head adjustment lever Loading Single-SheetPaper Preparing the printer for single-sheetfeed Loading single-sheetpaper 1.Place 3.Press Paper Figure 3-2.Sheet load Note: You may damage printer parts if you do this repeatedly with the power ON Loading Pin-feedPaper Installing the tractor unit Preparing the printer for pin-feedpaper Page Inserting pin-feedpaper Figure 3-6.Paper inserted Figure 3-7.Aligning pin frames so that 5.Lock the pin-feedersin place by pushing the gray pin-feederlock levers back 7.Close the paper bail 8.Set the print head adjustment lever according to the thickness of your paper Proper placement of pin-feedpaper Removing pin-feedpaper 1.Remove Removing the tractor unit The LQ-1500 Self-Test Letter quality (switch 2-7up) Control Codes Computer-to-Printer-Communications How Many Names Can One Code Have Carriage return 0DH CHR$(13) Its common name CTRL/J page “4” Therefore, the <ESC> “4” that turns on italic print actually is ASCII 27followed by ASCII 52. But <ESC> “4” is easier to understand and remember Here are some other common abbreviations: Name ASCII code (decimal) Escape LQ-1500Command Summary Vertical Spacing Commands Vertical Spacing Commands (continued) Set n/180-inchline spacing Set n/60-inchline spacing Form Feed Set page length by lines Set page length by inches Set bottom margin can Cancel bottom margin Vertical tab Set vertical tabs n1, n2 n1 Select a vertical tab channel nl Horizontal Spacing Commands Horizontal Spacing Commands (continued) Horizontal tab Set horizontal tabs Set intercharacter space 0to 127) Print Style Commands Print Style Commands (continued) Cancel elite width print Proportional print on/off One-lineexpanded width print Cancel one-lineexpanded width print Expanded width print on/off Select compressed width print Cancel compressed width print Select emphasized print Cancel emphasized print Select double-strikeprint Cancel double-strikeprint Select italic print Cancel italic print cancels Underline on/off Select superscripts or subscripts Character Set Commands Graphics Commands Graphics Commands (continued) High-speed, double-densitydot graphics Miscellaneous Commands Miscellaneous Commands (continued) Delete character Deselect printer Select printer data Clear eighth-bit Cancel eighth-bitcontrol BelI Backspace Initialize printer Disable paper-outdetector Remarks: (continued) Enable paper-outdetector Return print head to home position (one-lineunidirectional print ing) Unidirectional printing on/off Changing Printing Style Proportional Print Styles Pica Expanded MISwiy Italic Page Page Page The LQ-1500Character Set Page Page Draft Letter quality ProDortional Widths of the Proportional Characters Figure D-1.A character and its widths (normal) Page Page Left Body code space Page Page ASCII Code Conversion Chart Decimal Hexadecimal 261A 271B 281C 291D A l 17l Decimal D A Specifications of the Epson LQ-1500 Paper Printer INDEX switch 1-2 22, 27, 32, 35, 67 switch 24 62 15 30, 32, 37 26,27 LQ-1500Application Notes LQ-1500Programmer’s Manual 2 56 14 32, 37 32 57 15 60 Page EPSON AMERICA, INC LIMITED WARRANTY rights from Page Page Using the LQ-1500Commands with BASIC Control Codes by Function <LF Page Master Select Codes DIP Switch Settings Settings for switch ASCII Code Conversion Chart 12<DC2