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Head and guide cleaning device for video tape recorder

Image Number 2 for United States Patent #4683511.

A blocking member in the form of a short member attached to the front face of a cassette housing in front of the guide of the tension sensor of the video tape recorder blocks the movement of that guide to prevent the cleaning tape from being under too much tension which would otherwise slow or prevent movement of the tape through the various guides and heads in the video recorder and also could stop rotation of the video record/playback head drum.

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