Canon imagePRESS C1+ Reference Manual page 303

If you set [Allow Black Copy/Inbox Print Jobs] to 'On', [Black Copy/Black Inbox Print] appears on
the screen for entering the Department ID and password.
To copy or print in black-and-white, press [Allow Black Copy/Black Inbox Print].
NOTE
• If you set <Allow Printer Jobs with Unknown IDs> to 'On', all print jobs are accepted. Therefore,
the Allow Black Printer Jobs setting is ignored.
• To copy or print in the Auto-Color Select or Single Color mode, store an original in an inbox, send
a document, or use any other function except black-and-white copying and printing, you must
enter a Department ID and password.
• If you selected [On] in step 2, pressing [OK] activates Department ID Management.
Department ID Management
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