Canon ZR-800 Instruction Manual page 2

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Cleaning the Video Heads
Digital video camcorders record video signals on the tape in very thin lines (as thin as
1/8 of the width of a hair). The following symptoms may appear if the video heads
become dirty even a little.
• Mosaic or other blocky video artifacts (Fig. 1) or banding
(Fig. 2) appear on the picture during playback.
• Sound becomes distorted, or there is no sound during
playback.
• The message "HEADS DIRTY, USE CLEANING CASSETTE"
appears. Fig. 1
If such symptoms appear, clean the video heads with the Canon
DVM-CL Digital Video Head Cleaning Cassette* or a
commercially available dry cleaning cassette.
If the symptoms reappear shortly after the cleaning, the
videocassette may be defective. Stop using it. Fig. 2
* Availability differs from area to area.
Video heads may become dirty under the following conditions:
• When using the camcorder in humid or hot places.
• When using cassettes with damaged or dirty tape.
• When using the camcorder in dusty places.
• When using the video heads without cleaning them for a long time.
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• Before you make important recordings, clean the video heads and make a test recording first. We
also recommend cleaning the video heads after use, before storing the camcorder.
• Do not use wet type cleaning cassettes as this may damage the camcorder.
• Even after cleaning the video heads you may not be able to play back correctly tapes that were
recorded with dirty video heads.