The machines, only the third and fourth to be installed in the UK, are part of a £1.2m investment that is expected to help the Somerset-based company continue to grow its personalisation workload.

The brace of printers replace an iGen3, which the company had filled to capacity, something managing director Dave Broadway said "was always the plan".

He added: "Our iGen3 has been able to provide us with a fast, high-quality digital turnaround, especially on promotional and transactional print."

CFH's extra capacity will also help the £27m-turnover printer fulfil jobs for clients of its DocMail mail sorting and printing service, which was launched in late 2007.

"The new iGen4 takes the technology one step further, and is now one of the most productive digital colour presses on the market," Broadway said.

Its Xerox printers will also output a range of work for customers of the 220-staff company, including City and Guilds and financial services group Cattles.

CFH produces transactional and personalised print jobs and handles billing and communications on behalf of a several UK local authorities, with 2008 proving to be its most successful mail period to date.

Broadway said: "This investment increases our capacity to handle our growing document management business.

"Combine this with low running costs and quick turnaround times, this gives us great confidence moving into 2009."

The Xerox iGen4 is claimed to be 35% more productive than its predecessor, running at speeds of up to 110ppm.

It can handle 364x571mm sheets and up to 12 stocks in a single collated job, with a total paper capacity of around 80,000 sheets.