Samsung MultiXpress K760 Series User Manual page 395

Cleaning the machine
4 Take out the LSU window cleaning stick (X740x/X750x/X760x series
only).
5 Locate the LSU window cleaning hole and insert the LSU window
cleaning stick. Slowly push and pull the LSU window cleaning stick 4 or 5
times to clean the LSU window (X740x/X750x/X760x series only).
6 Insert LSU window cleaning stick back into its place (X740x/X750x/X760x
series only).
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4. Maintenance