Canon i 850 User Manual page 142

Check whether there is any problem with the computer.
Restart the computer, and if any print jobs remain, delete them.
Windows
1
Open the Printer Properties Dialog Box from the Start menu.
2
Click the Utility tab, and click Start Status Monitor.
3
Click Display Print Queue on the BJ Status Monitor.
4
Select Cancel All Documents from the Printer menu.
Macintosh
1
Open the BJ Print Monitor from the application menu.
2
Click to select an undesired document and click
The print job is deleted.
Printer Does Not Start or Stops During Print Jobs
Troubleshooting
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