Epson LQ-800 Troubleshooting and Maintenance, D-1, symbols #, [, \, ], Diagnosing the Problem

Appendix D

Troubleshooting and Maintenance

This appendix presents solutions for possible problems, explanations of the LQ’s advanced features, and maintenance tips.

Diagnosing the Problem

If the printouts from your LQ are not matching the document you’ve prepared on your computer, you’ll need to set up a test docu- ment.

When you set up a test document on your computer, include the symbols #, [, \, ], and {, because of their variation in the different character sets. Also include numbers, punctuation marks, symbols, carriage returns, and upper and lower case letters.

Now print the document. First check page B-4 to see whether the LQ is printing the correct character set. When delivered, the LQ is set to print the USA character set. If it’s not printing the USA character set, determine which character set it is printing. Then consult Appendix A on DIP switches to find how to select the correct character set.

If the printout shows other problems, such as one line printing on top of another, or too much space between lines, consult the following list. The statements on the left list possible problems; the recommendations are listed on the right.

D-1