Duplo DF-920 Maintenance Manual page 7

1-2-2. Folded size by folding plates 1 and 2 in each folding mode (theory)
The values in the table below are theoretical values. In actual use, folded size is finely adjusted according to the
folding mode to prevent dog ears and curling of paper.
Folding mode
Folded size by folding plate 1
(Ratio to paper length)
Folded size by folding plate 2
(Ratio to paper length)
Example: Letter folding A4 (Letter) paper
A4 (Letter) paper length: 297 mm (11")
Folded size by folding plate 1: 199 mm (7.37") (About 2/3 of paper length)
Folded size by folding plate 2: 100 mm (3.70") (About 1/3 of paper length)
∗ Measure the folded size at the center of the paper.
Folded size by folding plate 2
100 mm (3.70")
Single Double
fold fold
1/2 1/2
0 1/4
99 mm
(3.67")
98 mm
(3.63")
∗ ( ) shows the folded size for letter size paper.
12H-M12M0-0309-0
Irregular
Letter
accordion
fold
fold
1/4 2/3
1/4 1/3
Measuring point
(Center)
Paper feed direction
Folded size by folding plate 1
199 mm (7.37")
Accordion Brochure
fold fold
1/3 3/4
1/3 1/4
1-5