A report this week by Bloomberg.com says that Xerox is in talks to buy Chicago-based printing giant RR Donnelley & Sons Co.

Xerox had previously announced plans to split into two companies by the end of this year, in a move similar to what HP has done. According to the report, the deal with RR Donnelley could be completed before that split occurs.

As they stand now, Bloomberg has the two companies valued at a combined $13.5 billion.

RR Donnelley, which owns the Edgar financial statement wire service, was founded in 1864 and has some 65,000 employees in more than 500 locations around the world.