Service manual

10.2.4 Jogger Mechanism
There are two motors for driving the fences. The side jogger fences are
driven by the side fence jogger motor [A]. The end jogger fence is driven by
the end fence jogger motor [B]. Using two separate motors for the side and
end fence allows the duplex tray to handle all paper sizes from A3/11" x 17"
to A5/ 8
1/2
" x 5
1/2
" sideways.
There are two home position sensors. One is for the side jogger fences [C],
and the other is for the end fence [D]. When the main switch is turned on, the
side fence jogger motor and the end fence jogger motor move the side
jogger fences and the end fence to their home positions.
When the registration clutch turns on, the side fences move 10.5 mm, and
the end fence moves 7 mm away from the selected paper size. Then when
the copy paper is delivered to the duplex tray, the jogger fences move
inward to square the paper. (This is done 690 ms after the duplex turn
sensor detects the trailing edge of copy paper. The duplex turn sensor [E] is
in the diagram on the previous page.) Shortly after this, the jogger fences
move back to their previous positions. After the last copy of the first side
copy run enters the duplex tray, the jogger fences remain against the paper
stack.
There are two end fences. One [F] is for A3/ 11 x 17" size paper. The other
[G] is for sizes smaller than B4. They are included as a unit. When A3/ 11 x
17" size paper is in the duplex tray, the end fence unit moves to the left and
the B4 end fence rotates down as it is pressed against the end fence stopper
[H].
[B]
[D]
[G]
[F]
[H]
[A]
[C]
DUPLEX UNIT
A166/A187/A189 2-138 SM
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA