Dell plans to announce a major pricing initiative for consumers and small business customers on Thursday, it said in a press release distributed Monday. Further details were not immediately available, but Ro Parra, senior vice president and general manager of Dell’s new Home and Small Business Group, will lead a conference call. Dell has been looking to jump-start its consumer business this year. Although enterprise customers account for 85 percent of its business, the company has sought ways to expand its presence among home users of technology.