Brother MP-21C Service Manual page 132

(15) Remove the Clean wiper head from the printer. Wipe the ink around the ribs
on the Platen cover and the rib which is placed between the Ink suction cap
and the Head protector cap with a Head cleaner stick.
Note: Slightly damp the Head cleaner, which is a white sponge portion of the
Head cleaner stick with water. (Do not use alcohol.)
Print head
(16) MOBILEPAD asks you if the cleaning finished. Click the OK button on the
MOBILEPAD. Then automatically the Print head returns to the capping
position. Remove the clip from the Cover sensor and close the Top cover.
Note: The Seal rubber fitted in the adapter at the end of the IL tube should be
replaced with new one after it has been used 3 times. The Seal rubber
is supplied as a spare part with the number ZA0726001.
[ Procedure for replacing the Seal rubber ]
(1) Remove the IL cartridge BC and MY from the printer. Open the cover and
take the adapters out.
(2) Pull the Seal rubber out of the adapter using a needle or similar sharp
instrument.
Cover
Adapters
Fig. B.11
Seal rubber
Fig. B.12
B-6
Head cleaner stick
Rib