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New Pre-stacking Mechanism
1
Junction gate
transport rollers
3
Nip of the 1st pre-stack
rollers is released and the LE
passes through this nip.
Slide 499
At [1], the junction gate transport rollers feed the 1st sheet which brushes past
the pre-stack junction gate and into the nip of the 1st pre-stack rollers.
When the trailing edge of sheet passes the junction gate at [2] , the pre-stack
motor reverses and the 1st pre-stack roller and 3rd pre-stack roller feed the
sheet into the standby path. Next, just before the leading edge of the sheet
passes the 1st pre-stack roller, the pre-stack motor stops with the sheet in the
nip of the 1st pre-stack roller and pauses (standby), and then waits for the next
sheet to feed.
Next, at [3] just before the leading edge of the sheet passes the 1st pre-stack
roller, the pre-stack motor starts to rotate forward to drive the 1st pre-stack roller
and 3rd pre-stack roller.
The leading edge of sheet that was at standby and the leading edge of the sheet
that was just fed are aligned [4], and then the sheets are fed together to the
stapling tray.
Thereafter, it is possible to stack several sheets through repetition of this
operation (pre-stacking). One or the other mode is employed, depending on the
paper size, stapling mode, and the number of sheets to be pre-stacked.
Staple path
2nd
sheet
Pre-stack paper path
3rd pre-stack rollers
Junction Gate
st
1
sheet:
Feed
1st pre-stack rollers
Rotates in reverse
The 3rd pre-
stack rollers
st
grip the 1
sheet in the
shunt area.
2nd
2nd
sheet
sheet
LE of the 2 sheets
are aligned neatly.
499
2
1st sheet:
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4
BR-C1 Training
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