Canon Color ImageRunner C3380 Reference Manual page 494

Remove the paper from the booklet tray.
Cause
Remedy
Scanning has been canceled because the size of originals has changed. Fix the order
and front & back of the last 2 pages, return to the 1st page, be sure to set [Different Size
Originals], and try again.
Cause
Remedy
Yellow toner is low. Replacement not yet needed.
Cause
Remedy
8
Replace toner cartridge. (Black)
Cause
Remedy
Replace toner cartridge. (Black copying is possible.)
Cause
Remedy
Replace toner cartridge. (Black printing is possible.)
Cause
Remedy
8-78
List of Error Messages
Prints from the previous job remain in the Booklet tray of the optional Saddle
Finisher-Y2.
Remove the prints remaining in the Booklet tray. Printing automatically
resumes.
Different size originals are being scanned when the Different Size Originals
mode has not been set.
Place the last two rejected originals back in the feeder. Make sure that the page
order is correct and that the originals are placed properly. Then, set the
Different Size Originals mode.
Toner of the displayed color is running low.
Prepare the displayed color's toner cartridge for replacement. (See "Replacing
the Toner Cartridge," on p. 7-43.)
Printing is not possible because toner of the displayed color has run out.
Replace the displayed color's toner cartridge. (See "Replacing the Toner
Cartridge," on p. 7-43.)
Color copying is not possible because toner of the displayed color has run out.
Replace the displayed color's toner cartridge. (See "Replacing the Toner
Cartridge," on p. 7-43.)
Color printing from the inbox is not possible because toner of the displayed
color has run out.
Replace the displayed color's toner cartridge. (See "Replacing the Toner
Cartridge," on p. 7-43.)