Canon LBP7660Cdn Manual page 311

10
Click [Start Printing].
Do not keep clicking [Start Printing] while the file is transferring. Sometimes it takes time to transfer a file, but if you
keep clicking during the transfer, a file failure may occur and it may be impossible to transfer it.
When the print job has finished sending, the display switches and the following message is displayed.
Press [To Job List] to check the print job that was sent.