Epson LX-300 Problems and Solutions , Power Supply

Problems and Solutions

Most problems you may encounter while operating your printer

have simple solutions.

You can check the operation of your printer using the self test. See

“Running the Self Test” on page 1-10. If the self test works

properly the problem probably lies in the computer, the software,

or the interface cable. If the self test does not work, contact your

dealer or qualified service person for assistance.

Note:

If you are an experienced user or a programmer, you can print a

hexadecimal dump to isolate communication problems betwe en the

printer and computer. To prin t a hex dump, turn off the printer. Next,

hold down the

LF/FF

and

FONT

buttons while you turn on the printer.

Then send data from your computer. The printer prints all the codes i t

receives in hexadecimal format.

Power Supply

Power is not being supplied

The lights on the control panel do not go on.

Check that the power cord is properly plugged into the electrical

outlet.

If the electrical outlet is controlled by an outside switch or

automatic timer, use a different outlet.

Plug another electrical device, su ch as a lamp, into the outlet to

determine whether the outlet is operating properly.

L

Blueberry REV.E

A5 size Chapter 3

95/04/17

3-2 Troubleshooting

Contents

Main Page EPSON LX-300 Users Guide FCC Compliance Statement For United States Users ii For Canadian Users A5 size Front 95/04/17 Where to Get Help for United States Users For United Kingdom Users Epson product guarantee iv Use of options Safety information vi Contents Introduction Chapter 1 Setting Up the Printer Chapter 2 Using the Printer Chapter 3 Troubleshooting viii Appendix Index x Introduction Features Finding Your Way Around Warnings, Cautions, and Notes 2 w c Notes Important Safety Instructions 4 Chapter 1 Setting Up the Printer Unpacking the Printer 1-2 Choosing a place for the printer Assembling the Printer Installing the paper-feed knob 1-4 Attaching the paper supports Installing the ribbon cartridge w 1-6 Page 1-8 Plugging in the printer Running the Self Test 1-10 PAUSE 1-12 Connecting the Printer to Your Computer Using the parallel interface 1-14 Using the serial interface Setting Up Your Software 1-16 Microsoft Windows Using non-Windows software 1-18 Chapter 2 Using the Printer Using the Control Panel Lights and buttons 2-2 FONT 1 and FONT 2 lights FONT button Page Selecting fonts 2-4 Printing on Single Sheets Loading single sheets Adjusting the loading position Getting the results you expect 2-6 Printing on Continuous Paper Printing with the push tractor 2-8 Page 2-10 Switching back to single sheets Printing with the pull tractor 2-12 Page 2-14 Printing on Special Paper Adjusting the paper-thickness lever 2-16 Multi-part forms Labels Envelopes 2-18 Changing the Printer Settings 2-20 Page Printer setting descriptions Character spacing 2-22 Shape of zero Skip-over-perforat ion Character table Auto line feed Page length Auto tear off Tractor Installing and Using Options Cut-sheet feeder Page 2-26 Page Pull Tractor unit 2-28 Roll paper holder 2-30 Color upgrade kit 2-32 Page 2-34 Chapter 3 Troubleshooting Problems and Solutions FONT 3-2 LF/FF Power Supply Printing The printer does not print The print is faint or uneven Dots are missing in printed characters or graphics 3-4 Printed characters are not what you expected The print position is not what you expected Paper Handling Single sheets do not feed properly 3-6 Continuous paper does not feed properly Options When you use the cut-sheet feeder, the paper does not feed properly 3-8 Switching between the cut-sheet feeder and the push tractor does not work properly Using the pull tractor with the push tractor, continuous paper does not feed properly With color upgrade kit installed, printer doesnt operate properly 3-10 Appendix Printer Specifications Printing A-2 Paper Appendix A-3 A-4 Appendix A-5 Mechanical Electrical A-6 Environmental Safety approvals Interface Specifications Parallel interface specifications Serial interface specifications Serial pin assignments A-8 Printer Settings Appendix A-9 A5 size Appendix 95/04/17 Command Summary Sending printer commands A-10 Using the command summary Printer operation Data control Appendix A-11 Vertical motion Horizontal motion A-12 Overall printing style Print size and character width Appendix A-13 Print enhancement Word processing Character tables A-14 User-defined characters Appendix A-15 Color printing Graphics A-16 Index A Index 1 B C M N 2 O P T U Index 3 W Z