Separation Of Paper - Toshiba e-STUDIO453 Service Manual

9.2.3 Separation of paper

The separation roller in this equipment works to
separate the sheets of paper being fed. The sep-
aration roller section consists of the feed roller,
separation roller, spring joint, etc. The feed roller
rotates in the direction of the white arrow (shown
below in the figure at right) at the same timing as
the pickup roller rotation when the feed clutch is
turned ON.
When two sheets of paper are transported (shown
above in the figure at right), the lower sheet is
braked by the separation roller and not transport-
ed any further and the upper sheet is transported
9
in the direction of black arrow since the frictional
force between two sheets is small.
(Example)
When only one sheet enters into the separation
roller section:
Since the transporting force of the feed roller is
greater than the braking force of the separation
roller, these two rollers rotate together to trans-
port the sheet to the registration roller.
When two sheets enter into the separation roller
section:
Since the transporting force of the feed roller
and the breaking force of the separation roller
are greater than the frictional force between two
sheets, the sheet A is transported in the direction
of the black arrow and the sheet B is braked by
the separation roller and is not transported any
further.
e-STUDIO350/352/353/450/452/453
PAPER FEEDING SYSTEM
Feed roller
Fig. 9-203
Fig. 9-204
9 - 6 © 2003 - 2008 TOSHIBA TEC CORPORATION All rights reserved
Spring joint
Separation roller
Feed roller
Separation roller