Device for illuminating an original document

摘要

A flash lamp type device for illuminating an original document insures safety operation by alerting an operator, by an alarm, display and others, to the breakage of a glass platen and/or the open position of a protective cover which may occur while the voltage charge in a capacitor is higher than any desired voltage. A trigger circuit associated with a trigger wire is disenabled by sensing the breakage of a glass platen and/or the open position of the protective cover.