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Chapter 3 Advanced Operation
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4. Cross Folding
Cross single fold
Cross letter fold
Single fold
Cross folding refers to paper where single folding
has been performed, and then single folding is
performed again, or letter folding is performed.
Σ folding
• The upper limit of paper thickness is fine
quality paper 104.7 g/m
2
/27.8 lb.
• While the paper Σ folding, or left and
right direction misalignment, etc., can
become larger depending on the usage
environment and other conditions, this is
not a machine breakdown.
Do not put fingers inside during operation.
Keep away long hair, ties, jewelry and loose clothing.
It could cause injury.
4-1. Cross folding of standard size paper
The paper size that can be cross folded is A3, B4, A4 and B5 (EU)/LGR, LGL, LTR, STMT and INV (NA).
In cross folding, paper cannot be stacked lengthwise.
The operating procedure is described with B4 size
paper subjected to "cross single folding" as the
example.
Paper stacking
1
Perform single folding of B4 paper, in accordance with Chapter 2 “3. Standard Folding of
2
Use fingertips to firmly hold down the
folding line on single-folded paper.
If the fold line is not firmly crushed (folded),
the paper feed may become unstable, and
become a source for Σ folding.
