Toshiba 4580, Руководство по обслуживанию

Страница: 172 / 379

Mar. 1999 © TOSHIBA TEC 9 - 45 6570/5570 PAPER FEED SYSTEM
■
PFP feed roller and PFP separation roller release operation
The PFP feed roller and PFP separation roller have a releasing mechanism to enable jams to be cleared
if a paper misfeed occurs with the leading edge of the paper not clear of the PFP feed roller. This releas-
ing mechanism prevents the paper from ripping inside the copier which would otherwise happen if the
cassette was removed to clear a jam with the paper held between the PFP feed roller and PFP separa-
tion roller.
With the cassette installed
When the cassette is inserted, the PFP separation roller is pushed up against the PFP feed roller by the
pressure lever connected to spring
A
. At this time, the set lever is pushed by the cassette rib, and
rotates in the direction and is not in contact with the pressure lever.
With the cassette removed
When the cassette is removed, the set lever is rotated in the ( ) direction by spring
B
. Position
D
of the set lever pushes up at position
C
of the pressure lever, causing it to rotate in a CCW direction
( ), separating the PFP separation roller from the PFP feed roller.
Set lever
Set lever Cassette
Cassette rib
Cassette rail
Pressure lever
Pressure lever
PFP feed roller
PFP separation
roller
Spring
Spring
Spring
B
A
C
D
C
D
A
Set lever
Set lever
Pressure lever
PFP feed roller
PFP separation
roller
Pressure lever
Spring
Spring
Spring
B
A
A