Ricoh Aficio FT4027, Service Manual

Page: 633 / 685

8. JOGGER
NOTE:
•
The bin jam detector contains two LED/phototransistor pairs.
•
To detect jams, light from an LED above the bins passes through
the slots in the bins to a phototransistor below the bins. If the light
path is blocked at the wrong time, a jam is detected.
•
To detect paper in the bins, light from another LED above the bins
passes through the circular holes in the bins to another
phototransistor below the bins. If the light path is blocked, the
machine determines that there is paper in the bins.
When the key is pressed in the sort, staple, and stack modes, the copier
sends the paper size information to the sorter stapler. In accordance with this
data, the jogger motor [A] drives the jogger plate [B] from the jogger home
position to a point 10 mm wider than the selected paper.
300 ms after the trailing edge of the copy passes underneath the bin jam
sensor (jam detection part), the jogger motor rotates forward and in reverse.
This makes the jogger plate push all the copies against the front side plate to
square the sheets. When the jogger plate pushes the paper, the plate shifts
to a position 5 mm wider than the paper size when the bins lift, and it shifts to
a position 1 mm narrower than the paper size when the bins lower.
The jogger plate then returns to 10 mm away from the selected paper size for
the next copy.
When the bin jam sensor (paper detector part) detects that all copies have
been removed from the bins after jogging is finished, the jogger plate returns
to its home position.
Copier Main
Motor
Bin Jam
Sensor
Jogger
Motor
300 ms
ON
A664D514.wmf
[B]
[A]
A664D513.wmf
20-
Bin Sor
ter
St
apler ST30
(A664)
JOGGER
SM 3-15 A207/A208/A211