If the CM6000 series with a 200,000-page duty cycle is too small for you then you might be interested in the LaserJet M9050 and M9040 printers. These two printers have a duty cycle of 300,000 pages.
Bear in mind that the M9040 is black and white only — so it's substantially more niche and its ultra versatile smaller is sibling the CM6000 series. This is a bulk black and white printing workhorse. It does, however, include high-quality black and white scanning.
Once again, HP enterprise-level printers are available on a cost-per-page basis or to buy outright. The M9000 series comes with a range of additional options, including automatic stacker options.
Why can't HP release Office Jet Pro L7780 in Australia.
http://www.shopping.hp.com/webapp/shopping/product_detail.do?storeName=storefronts&landing=printer&category=office&orderflow=1&a1=Brand&v1=Officejet&a2=Type&v2=all-in-one&product_code=C8192A%23ABA&catLevel=3
Australia has Officejet L7580 & Officejet L7680 but not the 7780!