Canon MultiPASS C3000 User Manual page 189

To maintain the best possible print quality, you need to clean the
BJ cartridge print head from time to time. Your MultiPASS C3000 is
equipped with a print head cleaning function. If you notice some
degradation in the print quality, try cleaning the print head.
C
Cleaning the print head consumes a small amount of ink. Cleaning too
often reduces the amount of ink in the BJ cartridge.
1
2
3
START/COPY
Make sure the MultiPASS C3000 is plugged in.
FUNCTION
1 2
When cleaning ends, the MultiPASS C3000 beeps once to
let you know it is done, and returns to Standby mode.
Do this five consecutive times if necessary.
If the problem persists, install a new BJ cartridge.
USER SETTINGS
CLEANING
Chapter 9