Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 10, 2006
0Patent Application Number
108988680
Date Filed
July 26, 2004
0Patent Primary Examiner
Patent abstract
In a duplex printing or a simplex printing, upper and lower rollers of a fixing unit are separated from each other or stop rotating during a period after the fixing operation of the first side of a recording medium (or a preceding recording medium) and before the fixing operation of the second side of the recording medium (or a subsequent recording medium). With such an arrangement, it is possible to prevent the excessive heating of the lower roller, and thereby to prevent the degradation of the printed image.
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