DATAPRODUCTS <DPC> TO BUY IMAGING SOLUTIONS Dataproducts Corp said it signed a letter of intent to acquire the Imaging Solutions Inc unit of Reliance Electric Co under undisclosed terms. This acquisition will give it all rights to proprietary solid and liquid ink technologies which had been developed by a joint venture operated by it and Exxon Corp <XON>, Dataproducts said. It said Imaging Solutions, formerly named Exxon Printing Systems Inc, had been a Reliance Electric Co subsidiary. But Reliance recently became an independent company as the result of a leveraged buyout from its former owner, Exxon.