Canon devices use keyword recognition to block imaging jobs

The latest version of Uniflow, Canon's corporate document management system, uses OCR to prevent people from printing or copying documents that contain specific words.

Wake Forest University

Most consumer level Canon printers use optical character recognition (OCR) to translate scanned images of printer or handwritten documents to editable electronic text, but the latest version of Uniflow, the company's corporate document management system, uses OCR to prevent people from printing or copying documents that contain specific words.

Uniflow is a central management system that allows administrators to keep track of copies and prints for billing and requires an accompanying Uniflow server and Uniflow-ready Canon devices. The latest version, Uniflow 5, can also block documents containing prohibited keywords--sensitive information like passwords and account numbers.

Admins can also configure the system to automatically send them a PDF copy if a user attempts to print or scan a questionable document, and/or notify the user by e-mail that a task has been blocked without giving out the actually keyword.

Canon has not yet released details on when Uniflow 5 devices will be available.

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