Epson LQ-2500 User Manual - Page 149

Troubleshooting Graphics Problems, Problem, Recommendation, Problem Solving and Maintenance - drivers

Page 149 highlights

Troubleshooting Graphics Problems Problem Strange dot patterns appear in graphics printouts Printer freezes when printing graphics Text appears as random graphics characters You don't see the graphics characters you expect or italics are printed instead of graphics Recommendation Many computers have problems sending one or more of the codes between 0 and 13. Try to avoid these characters if possible. Be sure that no other commands or carriage returns come between the graphics command and its data. If the printer freezes in graphics mode, you have sent too few columns of data. Be aware that in 24-pin graphics mode three data bytes per column of graphics are required. If you interrupt the computer while it is printing in graphics mode, for example during a screen dump, it may not reset the printer to text mode. If not, the next text printed will be interpreted by the printer as graphics data. Turn off the printer and turn it back on again to reset it. Select the LQ-2500 printer from the printer driver list in your application program. Make sure you select the Graphic option from the SelecType CG TABLE. If your application program does not list the LQ-2500. or the LQ-80011000 with the ESClP module, check with your dealer to find out whether you can obtain an upgrade for the software that supports the LQ-2500. D-4 Problem Solving and Maintenance

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Troubleshooting Graphics Problems
Problem
Recommendation
Strange dot patterns
appear in graphics
printouts
Many computers have problems sending
one or more of the codes between 0 and
13. Try to avoid these characters if
possible.
Printer freezes when
printing graphics
Text appears as random
graphics characters
You don’t see the graphics
characters you expect or
italics are printed instead of
graphics
Be sure that no other commands or
carriage returns come between the
graphics command and its data.
If the printer freezes in graphics mode,
you have sent too few columns of data.
Be aware that in 24-pin graphics mode
three data bytes per column of graphics
are required.
If you interrupt the computer while it is
printing in graphics mode, for example
during a screen dump, it may not reset
the printer to text mode. If not, the next
text printed will be interpreted by the
printer as graphics data. Turn off the
printer and turn it back on again to reset
it.
Select the LQ-2500 printer from the
printer driver list in your application
program. Make sure you select the
Graphic option from the SelecType CG
TABLE. If your application program does
not list the LQ-2500. or the LQ-80011000
with the ESClP module, check with your
dealer to find out whether you can obtain
an upgrade for the software that supports
the LQ-2500.
D-4
Problem Solving and Maintenance