There are three indicator lights in a line on the right shoulder of the
printer and as well as the usual toner and paper jam indicators the third
light indicates memory errors. We would expect this indicator to be
needed if you use the printer with its built-in level 3 PostScript
interpreter on more complex documents and at higher resolutions, because
the machine only has 8MB of internal memory as standard. The EPL-6200 can
print at a full 1,200dpi, though by default it outputs at 600dpi.