Brother GT-341 Instruction Manual page 124

6. Maintenance
(3) Pick up the edge of the used Fan Filter mounted in the Filter Cover, and remove the Fan Filter from the Filter
Cover. Put it in the plastic bag
Filter Cover
Fan Filter
(4) Align the new Fan Filter to the shape of Filter Cover and mount it in by pushing by hand, with the "rough"
surface to the outside and the "fine" surface to the Exhaust Fan.
"Rough" surface
<Note>
Check the surface of the Fan Filter, the rough side faces to the Platen to catch mist, and the fine side faces to
the Fan side.
(5) Move the Filter Cover from the front side of the Timing Belt, insert the Guide Holes to the projections and
cover the Fan with the Filter Cover by pushing until the Lock hold the Fan.
<Note>
Check if the Fan Filter can fix properly by pulling out to the Platen side.
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and dispose of it in accordance with local regulations.
GT-3 Series
"Fine" surface
0069Y
0070Y