Duplo DF-920 Maintenance Manual page 33

(4) Structure of folding stopper
To reduce the collision sound when the lead edge of the paper collides with the folding stopper, a double-stopper
structure where a slide stopper is mounted onto the folding stopper is provided.
The side of the slide stopper which collides with the paper is also pasted with urethane to simultaneously reduce
the collision sound and paper bending.
2-6-1. Adjusting the clearance of the conveyance route of the folding plate
To prevent paper jamming at the folding plate, check that the clearance of the conveyance route of the folding plate
satisfies the following values within the 120 mm (4.72") range from the center of the folding plate.
Folding plate 1: 1.6
Folding plate 2: 0.8 + 0.3 mm (0.031" + 0.012")
Folding plate 1
Folding stopper structure
+0.3 +0.012"
mm (0.063" )
–0.1 –0.004"
12H-M12M0-0309-0
Bottom regulated position
Top regulated position
Folding plate 2
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