The decrease from €411m over the same period in 2007 contributed to an 8.1% fall across the group as a whole where total sales fell to €777m from €845m.
However, Roberts said he is expecting results later in the year within the graphics division to offer a more positive showing once orders made at Drupa are taken into account.
"We took orders in excess of €100m at Drupa and £10m of that figure came from orders going to the UK market.
"These orders will be represented in our third and fourth quarter results so I anticipate a stronger second-half of the year."
The €100m-plus worth of orders at the recent trade show included deals for more than 100 Anapurna wide-format machines, as well as orders for its Avalon platesetter range.
Roberts said: "From a UK commercial point of view, it's been a good six months in general. Our consumables business is up 10% but overall, it's a mixed field with some good results and some not so strong."
Agfa's net financial debt was recorded at €737m, compared to €809m in the second quarter of 2007.
"On balance, our results have been reasonable so now we are looking forward," said Roberts.
Agfa's Roberts bullish over drop in sales
Agfa UK's managing director Laurence Roberts is anticipating an upturn in revenue after the graphics division posted a 6.3% drop in sales to 385m euro (303m) during the second quarter.