Canon CLC5151 Reference Manual page 477

Details of each item are shown below.
[Yes]: The pages scanned into memory are printed. When printing is
complete, scan the remaining originals.
[No]: The pages scanned into memory are not printed.
[Another Function]: Select to use another function that is not being used.
If the screen shown below appears:
Select [Cancel] or [Another Function].
If Memory Becomes Full during Scanning
8
8-85