>>890
http://www.canon.co.uk/For_Home/Product_Finder/Printers/Bubble_Jet/PIXMA_iP5000/

> Canon's FINE* print head utilises Micro-Nozzles to eject industry-
> first 1pl ink droplets - the smallest ever - to achieve remarkable detail,
> with a 9600 x 2400 dpi^(1) resolution.

1plインク滴（最小）と書いてあるな。