Canon imagePROGRAF PRO-300 13" Photographic Inkjet Printer - Manual (Page 602)

Printer Status Monitor Not Displayed (Windows)
Check Is printer status monitor enabled?
Make sure that Enable Status Monitor is selected on the Option menu of the printer status monitor.
1. Open printer driver setup window.
How to Open the Printer Driver Setup Window
2. On Maintenance sheet, click View Printer Status .
3. Select Enable Status Monitor on Option menu if it is not selected.
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