Konica Minolta magicolor 1600W Service Manual - Page 91
PPM control
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magicolor 1600W magicolor 1650EN 16. Fusing section Theory of Operation Ver. 1.0 Nov. 2008 16.3.5 PPM control • PPM control is provided to prevent the temperature on edges of the heating roller from increasing during a multi-print cycle using plain media of a small size. • The distance between sheets of media is widened according to the number of printed pages set to be produced and the media length. This evens out the temperature of the heating roller and thus stabilizes fusing performance of the printed toner image. • The PPM control is provided at 20 ppm for a multi-print cycle of producing 20 pages. The number of printed pages per minute is established as detailed below for each media size for the 21st and subsequent pages. • No PPM control is provided for a multi-print cycle of color printing, as it is 1/4 of the monochrome printing. Media conditions PPM A5, invoice 14ppm Media having a narrower width and longer length than above 8ppm COMPOSITION/ OPERATION 64