Kyocera KM-4035 Operation Manual page 53

Preparation for Usage
(Metric models)
3 Close the original platen.
IMPORTANT: Do not push the original platen or document processor forcefully when you close it.
Excessive pressure may crack the platen glass.
Shadows may appear around the edges and in the middle of copies of open-faced originals such as
books.
Caution
: Do not leave the document processor open as there is a danger of
personal injury.
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