Epson EPL-N7000 - Manual (Page 327)

316 Troubleshooting
The non-printed side of the page is dirty
Memory Problems
Print quality decreased
Cause What to do
Toner may have spilled onto
the paper feed path. Clean internal printer components by
printing three pages with only one
character per page.
Cause What to do
The printer cannot print in the
required quality level because
of insufficient memory, and
the printer lowers the quality
automatically so that the
printer can continue printing. Check to see if the printout is
acceptable. If not, add more memory for
a permanent solution or lower print
quality temporarily in the printer
driver.