Sharp MX-FR52U - Manual (Page 6)

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When the data security kit is installed
Security settings of the data security kit
When the data security kit is installed, settings to enhance security of the
machine can be added. For more information, see "Security settings" (page
13 of this manual).
Document control function
The document control function is used to embed a document control pattern
on the paper when print jobs, copies, and received faxes are printed.
The embedded document control pattern prevents secondary copying,
faxing and other operations of a printed document. For more information,
see "Document Control Setting" (page 27 of this manual).
Document Filing
To use the document filing function to store jobs in the machine when the
data security kit is installed, set the file property to "Confidential".
Files set to the "Sharing" or "Protect" properties cannot be stored. In
addition, to print from a computer using the retention function, enter a
password in the printer driver settings (when the factory default setting is in
effect).