DRAFT
Theory of operation Ver. 1.0 Feb. 2010
27.3.2
Document separation mechanism
• Double feeding of paper is prevented using coefficient of friction between the feed roller
and separator pad.
Feed roller
Single sheet feeding
Multiple sheet feeding
Single sheet feeding
27. AUTOMATIC DOCUMENT FEEDER SECTION
• The coefficient of friction on the front side of the paper fed between the take-
up roller and separator pad is equal to that on the backside of the paper.
This allows the take-up roller to transport the paper.
• The coefficient of friction between the paper and separator pad is greater
than that between sheets of paper. This allows only the first sheet of paper
to be transported by the take-up roller.
Separator pad
Multiple sheet feeding
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1382M009AA
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