Federal securities regulators are investigating

Xerox's

(XRX) - Get Report

accounting for its Mexico business, the company said Thursday.

A company spokesman, Bill McKee, said Xerox has begun its own investigation and will reports the results on July 26, when it reports its quarterly earnings. The company said in a statement that it will cooperate with a

Securities and Exchange Commission

investigation.

The company said on June 16 that unexpected problems with customer receivables in Mexico could cut 5 or 6 cents a share off the quarter's earnings. That amount was unchanged, McKee said.

Xerox annually sells around $400 million of office machinery in Mexico.

John Heine, a spokesman for the SEC, could neither confirm nor deny the existence of an investigation.

Xerox's stock traded at 18 1/2 around 4:20 p.m., according to Instinet. The shares closed regular trading at 19 9/16, down 7/16 or 2.19%.

Besieged by strong competition in its highest-margin product lines, problems collecting on accounts in Mexico and upheaval in its sales force, the company ousted its chief executive last month after a failed reorganization.