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SD-501
6. FOLDING SECTION
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Theory of Operation Ver2.0 Sep.2006
6.3.4 Folding sub scan alignment control
A. Mechanism
The folding sub scan alignment operation is conducted in the multi letter folding mode and is conducted with the
folding exit claws [13] and the folding alignment stoppers /Rt [3] driven by the folding sub scan alignment exit
motor (M8) [8].
The folding exit claws move to the right [14] and the folding alignment stoppers /Rt move to the left [2] when M8
rotates in the reverse direction [9]. The folding alignment stoppers /Rt are contacted with the alignment stopper
[1] and stopped by the torque limiter [7]. The folding exit claws move to the positions for the paper width of A4R
or 8.5 x 11R and conduct the folding sub scan alignment operation, and then the folding is conducted.
In the multi center folding mode and the saddle stitching mode, M8 rotates in the forward direction to move the
folding exit claws to the left [11] after the folding operation. Once the folding exit claws make a round, they con-
duct the paper exit operation to the saddle stitching section. At the time, the folding alignment stoppers /Rt
moving to the right [4] are contacted with the alignment stopper [5] and stopped by the torque limiter [7].
The home position of the folding exit claws in the alignment operation is detected by the folding sub scan align-
ment home sensor (PS56) [12]. The initial position and the center folding exit operation are detected by the fold-
ing exit home sensor (PS24) [6].
[1] Alignment stopper [8] Folding sub scan alignment exit motor (M8)
[2] Direction at the alignment operation (to the left) [9] M8 rotated in the reverse direction
[3] Folding alignment stoppers /Rt [10] Folding sensor /2 (PS44)
[4] Direction at the center folding exit operation (to the right) [11] Direction at the center folding exit operation
[5] Home position stopper [12] Folding sub scan alignment home sensor (PS56)
[6] Folding exit home sensor (PS24) [13] Folding exit claws
[7] Torque limiter [14] Direction at the alignment operation (to the right)
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[6]
[8] [9] [7]
[13]
[12]
[11]
[10]
[14]
[1]
[2]
[3]
[4]
[5]