The decision hands victory in one of the biggest ongoing U.S. proxy fights to activist investors Carl Icahn and Darwin Deason, who say they can secure better offers for the company than the deal with Fujifilm.

Some Tokyo-based analysts warned a long renegotiation of price and terms as well as attempts to restructure the pair's existing joint venture could damage both companies.

"There is a large gap between our assessment and Xerox's largest investors' assessment of Xerox's value," said Ryosuke Katsura, senior analyst at SMBC Nikko Securities.

"We think that it would be negative for both firms if a break-off in negotiations is followed by a protracted period of uncertainty."

Xerox shares fell 7.4 percent to $27.82, while Fujifilm shares rose 1.5 percent.

The share price decline shows that the scrapping of the deal will result in the loss of a $9.80 special dividend, said David Holt, analyst at CFRA research.

Holt also said there are potential interests from other competitors such as HP Inc.

"When you put these two companies together, the value proposition looks attractive," Holt added.

Xerox and Fuji agreed in January to a complex deal thatwould have merged Xerox into their Asia joint venture Fuji Xeroxand given Fujifilm control. That prompted Icahn and Deason, who control 15 percent of the company, to demand changes to the board.

The settlement with the billionaire investors outlined by Xerox on Sunday puts the Japanese company further on the back foot in any new negotiations with Xerox, although a number of analysts have said Fujifilm is under no pressure to rush.

Xerox said it had repeatedly tried to convince Fujifilm to start talks on improved terms for buyout to no avail. Fujifilm said on Sunday it disputed Xerox's right to terminate the deal and would look at all options including legal action seeking damages.

Icahn and Deason have said they believe other investors are"waiting in the wings" for Xerox, while people familiar with the matter have previously said that buyout firm Apollo GlobalManagement LLC has expressed interest in a bid forXerox.

(Reporting by Patrick Graham in Bengaluru and Makiko Yamazaki in Tokyo; Editing by Arun Koyyur)