December 2002 TOSHIBA TEC 9 - 5 e-STUDIO160/200/250 PAPER FEEDING SYSTEM
9.4.3 Paper separation
Paper separation is performed by the pickup feed
roller and separation roller in this machine. The
separation roller is connected to its shaft through
the arbor R (torque limiter). The pickup feed roller
is rotated in the direction of the arrow ( ) at the
same timing as the pickup roller by the main mo-
tor. The separation roller is driven in the direction
of the arrow ( ) through the arbor R (torque
limiter). But when there is no paper or only one
sheet between the rollers, the friction between the
rollers or that between the sheet and the separa-
tion roller is large enough to force the separation
roller in the direction of the arrow ( ), cause a slip
in the arbor R (torque limiter).
However, if multiple-sheet feeding occurs, since the
friction between the sheets is small, the lower sheet
is forcibly separated from the upper sheet and is
sent back in the direction of the ( ) by the
separation roller. The upper sheet is fed in the di-
rection of the arrow ( ) by the feed roller.
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09-04-03
Examples:
If only sheet of paper arrive at the separation
roller, the force of pickup feed roller, which is greater
than that of the separation roller, causes the sepa-
ration roller to rotate in the ( ) direction, sending
the paper.
If two sheets of the paper ( and ) arrive at
the separation roller, the force of the respective
rollers is greater than the friction between sheets
of paper, and the top sheet is sent in the ( )
direction by the feed roller while the bottom sheet
is sent in the ( ) direction by the separa-
tion roller.
Pickup feed roller
Separation roller
Arbor R
Pickup feed roller
Separation roller
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