3.3.3 Multiple Sheet Feed Prevention
The sheets set in the MPF are occasionally stuck together at the edges. The stuck sheets cause a
multiple sheet feed or a jam. Normally, when only one sheet is fed, both the MPF ROLLER and
SEPARATOR ROLLER rotate to allow the sheet to pass. However, when two sheets are fed
concurrently, only the MPF ROLLER rotates and the SEPARATOR ROLLER is locked thereby
allowing the upper sheet to pass by being separated from the lower sheet that is stopped by the
friction with the SEPARATOR ROLLER at rest.
The SEPARATOR ROLLER is being pushed toward the MPF ROLLER by spring pressure, and
controlled by the torque limiter with which it is coupled..
3.3.4 Reference diagram
Version 1 2007.12.28
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Chapter 6 Principles of Operation
my06045 A