Canon Optura Xi Instruction Manual page 161

0 Atcold t emperatures, the screen may b edarker than usual. This i snot a
malfunction. The s creen returns tonormal when t he camcorder warms up.
Viewfinder
o Extend the viewfinder and move it upward. Remove the
protect cover and clean the glass with a cotton swab.
Reattach the protect cover when finished.
O Be careful not to scratch the glass when cleaning.
Video Heads
O When the message "HEADS DIRTY,USECLEANING CASSETTE"appears, or when
the playback picture becomes distorted, the video heads need to be cleaned.
O To maintain the best picture quality, we recommend cleaning the video heads
frequently with the Canon DVM-CL Digital Video Head Cleaning Cassette or a
commercially available dry cleaning cassette.
0 Do not use wet type cleaning cassettes as this may damage the camcorder.
161