Canon MX490 series Online Manual page 606

If you are printing from the computer and there are any unnecessary print jobs,
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delete them.
Deleting the Undesired Print Job
Make sure that your machine's name is selected in the Print dialog.
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The machine will not print properly if you are using a printer driver for a different printer.
Make sure that your machine's name is selected in Printer in the Print dialog.
Note
• To make the machine the one selected by default, select the machine for Default printer.
Restart your computer if you are printing from the computer.
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