Archive to Lose 100 Workers at 3 Company Sites : Layoffs: Conner Peripherals, owner, says move will eliminate overlap. Seventy are affected in Costa Mesa and San Diego.

Conner Peripherals Inc. announced Tuesday that it will cut 100 jobs from its newly acquired Archive Corp. subsidiary to eliminate overlap between the two companies.

Archive, a Costa Mesa-based manufacturer of tape drives that back up data stored on personal computers, will lay off 70 employees in San Diego and Costa Mesa and another 30 employees in Ann Arbor, Mich. The cuts amount to 5% of Archive’s 2,000-employee work force.

“We’re consolidating our business units and eliminating overlap,” said Forest Monroy, a Conner spokesman at Conner’s headquarters in San Jose. “The jobs affected are across the board, including management.”

Conner, a maker of computer disk drives, bought Archive for $278 million in a deal that closed Dec. 29. The parent company plans to operate Archive as an independent subsidiary, Monroy said.

Conner reported this week that its fourth-quarter earnings slipped 36% because of charges associated with its purchase of Archive.

Net income dropped to $8.5 million, or 17 cents a share, compared to net income of $13.2 million, or 23 cents, a share a year ago. Excluding the Archive deal, Conner said its net income would have more than tripled to $44.2 million, or 70 cents a share for the quarter.

Revenue for the quarter rose 49% to $620.7 million, from $417 million a year earlier.

For the year, Conner said net income rose to $121 million, or $1.89 a share, compared to net income of $92.5 million, or $1.54 a share, a year earlier. Revenues rose 40% to $2.24 billion from $1.59 billion a year earlier.