Patent ID: 6388776
Filing Date: 2002-05-14
Classification: H04N

Abstract:
A scanner, comprising:a body enclosing a means for reading an image from a sheet of paper; a scanning device slidably attached inside said body that moves in a reciprocating fashion while reading said image, said scanning device having a lamp; a central processing unit; a power supplier attached to said body and providing and terminating a power supply to said lamp in said scanning device in response to said central processing unit; a temperature detector contained in said body and outputting a first signal representing a temperature detected near said lamp; a comparator electrically connected to said temperature detector and outputting a second signal after comparing said first signal with a reference signal; said central processing unit connected to said comparator, controlling said power supplier to supply and terminate said power supply to said lamp in response to said second signal; and a power controller electrically connected to both said comparator and said power supplier, terminating said power supply to said lamp in response to said second signal regardless of said control processing unit controlling said power supplier to supply said power supply to said lamp.