Canon iPF8300S User Manual page 760

Print Job Operations
2.
In the Documents dialog box, select the print job and click Delete.
For details, refer to the imagePROGRAF Status Monitor help file.
5
Using imagePROGRAF Printmonitor
1.
In the Hard Disk pane, click ▶ next to Inbox No./Name.
740
Deleting Saved Jobs
> Basic Print Job Operations >
iPF8300S