Epson EPL-6200 Reference Manual page 365

Print Quality Decreased (due to insufficient memory)
Control panel:
The printer could not print at the requested quality level due to
insufficient memory and automatically reduced the print quality
so that it could continue to print. Check to see if the printout is
acceptable. If not, add more memory for a permanent solution, or
temporarily set the print quality lower in the printer driver. Press
the @ Information button on the control panel to clear the
warning.
Check Paper Type
Control panel: m light flashing
The paper type setting in the printer driver is different from the
type of paper loaded in the printer. Load the correct type of paper
into the printer. To clear the warning, press the @ Information
button on the control panel.
Need Memory
Control panel:
This warning indicates that the printer encountered memory
problems when printing the document. Press the @ Information
button on the control panel to clear the warning. To cancel the
print job, use your computer to delete it from the print queue.
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Troubleshooting
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