Brother MFC-7050C, Service Manual

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III
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(2) Head capping and cleaning with head wipers
Shown below are head capping and cleaning mechanisms. Upon completion of printing, the
carrier travels rightwards to the home position and moves the head cap lever of the head cap unit
to the right, bringing the head cap unit up to the position where the head caps come into tight
contact with the print heads. Capping the nozzles of the print heads this way prevents them from
drying up or becoming dirtied with dust when they are not in use. If the carrier travels to the left
for printing, the head cap unit goes down to the previous position with the springs.
The above head capping mechanism moves also the head wiper unit up. When the carrier travels
to the left, the wipers clean ink remaining on the head surfaces and then the carrier's boss presses
the wiper release lever to return the wiper unit down to the previous position.