Operation Manual
a
• If  a message  is  frequently  displayed,  even  after cleaning,  it  is time to
replace  the  air  filter.  Replace  it  with  a  new  air  filter.
s  "Replacing the Air Filter" p.117
• It  is  recommended  that  you  clean  these  parts  at  least  once  every
three months. Clean them more  often than this if  using  the projector
in  a  particularly  dusty  environment.
Cleaning
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