Marleau's goal -- toward the end of the second period -- was the 207th of his career and pushed him ahead of Owen Nolan as the top goal scorer in Sharks history. Vesa Toskala made 22 saves as San Jose won for the fourth time in its last five games.
Los Angeles opened the scoring when Cammalleri notched his 16th goal of the season at 5:02 of the second period.
The Sharks then scored four unanswered goals, beginning with Bell's score at 7:48 of the second, as he faked the Kings Brent Sopel into leaning the wrong way and put a wrist shot into the goal.
San Jose scored two more second-period goals -- one on Michalek's power-play goal and the second on Marleau's club-record goal on a rebound of a Joe Pavelski shot.