Epson LQ-510, User Manual

Page: 189 / 295

Printing
Problem
The print position is
not what you
expected
(continued).
Solution
Vertical printed lines
do not align or gaps
appear in lines or
graphics.
The printer is usually set for bidirectional
printing. This can cause a slight
misalignment of graphics characters.
When precise printing of vertical lines is
necessary, contact your service center to
have them perform the bidirectional print
alignment adjustment or select the
unidirectional print mode by sending
ESC U or ESC < to the printer. You can
also select unidirectional printing by
setting DIP switch 2-6 to off.
Unidirectional printing is slightly slower.
See Chapter 9.
Note:
Use the data dump mode to check data being sent from
the computer. In the data dump mode, data is printed in
hexadecimal format and in ASCII characters. See Data Dump
Mode in Chapter 3.
If the printer still does not print, try the self test described in
Chapter 1. If the self test works properly, the printer is all right, and
the problem probably lies in the computer, the software, or the
cable. If the self test does not work, contact your Epson dealer.
Troubleshooting
7-13