Epson EPL-N3000, Reference Manual

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Getting to Know Your Printer
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Duplex printing
EPSON provides optional Duplex Unit, allowing you to easily
print on both sides of the page. You can produce professional
quality double-sided documents. Use this feature with any print
job to cut costs and save resources.
HDD Form Overlay function
Enables faster printing with form overlays by allowing you to
save the overlay data on the optional Hard Disk Drive instead of
your computer. For details, see “Using HDD form overlay” on
page 51.
Note:
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You need an optional Hard Disk Drive installed in your printer in
order to use the HDD Form Overlay function. For instructions on
installing the Hard Disk Drive, see “Hard Disk Drive” on page 210.
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You can not use the HDD Form Overlay function with the
PostScript driver.
Resolution Improvement Technology (RITech)
Resolution Improvement Technology (RITech) is an original
EPSON printer technology that works by smoothing out the
jagged edges of diagonal and curved lines in both text and
graphics. Enhanced MicroGray improves the halftone quality of
graphics. With the driver provided, the printer’s 600 dpi (dots per
inch) resolution is enhanced by RITech and Enhanced MicroGray
technology.