You need to
clean the suction cap every week and whenever you see a message on
the LCD screen. You may also need to clean the suction cap if you
experience difficulty cleaning nozzles after performing a nozzle
check. Even if the message is not displayed, follow the steps here
to clean the suction cap.
Note: If you
continue to use the printer without cleaning the suction cap, the
ink nozzles may clog and print quality may decline.