The police were called, and Ms. Sajjad was arrested and charged with two misdemeanors, attempted assault and criminal possession of a weapon, and one violation, harassment, officials said.

In August, Ms. Sajjad accepted an offer of adjudication in contemplation of dismissal — meaning that the matter would be dismissed as long as she stayed out of trouble during the ensuing six months, officials in the Queens district attorney’s office said. In addition, the deal included a full order of protection for Mr. Kim, forbidding Ms. Sajjad to have any contact with him, officials said.

Last week, Mr. Kim’s lawyers obtained the surveillance videos of the February episode from the restaurant and released them to WCBS, which broadcast excerpts on Monday, prompting an uproar among Koreans and the call to action on Tuesday.

On Tuesday afternoon, eight people representing four Korean community groups gathered outside the McDonald’s on Main Street, near the intersection with Roosevelt Avenue. They held signs with messages denouncing the restaurant, like “Violent Mgr in McDonald’s” and “U Can B Hit in McDonald’s.”

Christine Colligan, co-president of the Korean American Parents Association of Greater New York and the leader of the protest, said the videos rendered the 10-month-old allegations visceral and persuaded many in the community of the merits of Mr. Kim’s case.

“We realized that this happened,” Ms. Colligan, a Korean immigrant, said.

In the soundless footage, the altercation begins and ends in a matter of seconds: Mr. Kim — wearing a flat cap, winter coat and scarf — stands at the counter. He exchanges words with employees, then pulls out his cellphone and trains the camera on the employees behind the counter. Ms. Sajjad lunges across the counter apparently in an attempt to snatch his cellphone, then walks around the counter and disappears. Suddenly, a broomstick, wielded by an unseen assailant beyond the cameras’ frames, strikes Mr. Kim.

In his lawsuit, which seeks at least $10 million in damages, Mr. Kim claims unlawful discrimination, civil battery and assault, the intentional infliction of emotional distress and negligent supervision. Through his lawyer, Christine M. Bae, he declined to be interviewed.