ttp://www.letsgodigital.org/en/news/articles/story_345.html

| Adding to the flexibility, efficiency and high performance of the i860
| printer is an optional auto duplex printing unit (DPU-10) that
| automatically reroutes the page for properly formatted two-sided printing.

またまた他社の後追いｷﾀ━━━━━━(ﾟ∀ﾟ)━━━━━━ !!!!!