Canon imageRUNNER C3489 Reference Manual page 156

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Card Reader-C1
[Allow Black Copy/Black Inbox Print] appears on the Insert a Control Card
screen, if <Allow Black Copy/Inbox Print Jobs> is set to 'On'.
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 other functions except for black-and-white
copying and printing, you must insert a control card.