Canon S400 User Manual page 341

Eight flashes: Waste ink absorber almost full
The printer has a built-in waste ink absorber to hold the ink that is consumed during print
head cleaning.
Eight flashes indicate the waste ink absorber is nearly full. Press the RESUME button to
skip the error so you can continue printing.
Call the Canon Customer Care Center for help to have the waste ink absorber replaced
immediately.
Getting Help From Canon
When the waste ink absorber becomes full, the POWER light flashes
Note
orange and green alternately, and printing will no longer be possible.
Call the Canon Customer Care Center.
The POWER light flashes orange and green alternately: Service error
A service error means the printer requires the attention of a qualified technician.
Count the number of flashes. (You may be asked for this information.) Call the Canon
Customer Care Center.
Before You Call for Help
Getting Help From Canon
The POWER Light Flashes Orange
Troubleshooting 341