Develop ineo+ 6500, Руководство по обслуживанию

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4. PAPER FEED SECTION
14
Theory of Operation Ver1.0 Sep.2006
PF-601/HT
-504
4.3.4 Separation mechanism
• Papers are separated by the separation roller [5].
• The separation roller [5] rotates in the direction [10] opposite to the paper conveyance direction [9] by
means of the torque limiter [8]. The roller is pressed against the paper feed roller by force exerted by the
spring [7] and the torque limiter.
• The friction force between the separation roller and the paper feed roller is limited by the torque limiter in
order to prevent multi-feed.
• When no paper exists between the separation roller and the paper feed roller or when the only one sheet of
paper is present, the separation roller is driven by the paper feed roller in the direction of arrow [4] since the
torque is over the limit.
• When multiple sheets of paper are fed, the separation roller reverses the direction of rotation [10] (opposite
to the paper feed roller) and feeds the lower paper [2] that contacts with the separation roller back to the
tray [3]. The drop in frictional force between the two rollers due to the multiple sheets causes the counter
rotating of the separation roller.
[1] Paper feed roller [6] Pressing force
[2] Lower (2nd) sheet of paper [7] Spring
[3] To the tray [8] Torque limiter
[4] Direction to feed paper normally [9] Paper feed direction
[5] Separation roller [10] Direction to separate sheets
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[2]
[3]
[1] [9] [10]
[8]
[6] [5] [4]
[7]