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Chapter 3 Advanced Operation
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1-3. Double folding of thick paper
When using high-quality paper or other thick paper (fine quality paper 104.7 g/m
2
/27.9 lb) to perform double
folding, the paper folded part may open up when ejected to the stacker area, so that it cannot pass through
the stacker roller, and resulting in a paper jam. In this case, perform the following processes.
When performing double folding of thick paper (fine quality paper 127.9 g/m
2
/33.9 lb), paper
ejection problem may occur. Do not use thick paper.
1
Perform the operations in Chapter 2 “2-3. Stacking paper” (p.19) to “3-5. Aligning
separation pressure adjustment lever position” (p.24).
2
Lift up the stacker roller by hand, and
lift the levers (two locations right and
left) attached to the stacker lever, in the
direction of the arrow.
The stacker roller is left floating above the belt
surface.
3
Set the stacker roller position.
The setting position is [5].
Chapter 2 “3-4. Aligning stacker roller position” (p.23)
The DF-870 stacker roller automatically moves to align with paper size or folding form.
4
Press the
key for test folding.
When the paper mis-feeds or two sheet feed occurs, see Chapter 5 “4. Handling of Mis-Feed” (p.65) or “5.
5
Check that the paper is smoothly ejected or not.
If already processed paper is not smoothly ejected to the paper reception plate, or a paper feed jam
error has occurred in the ejection area, change the stacker roller position.
If ejection was not smooth, perform step 6.
If ejection proceeded smoothly, go to step 7.
6
Change the stacker roller position to [4] or [3].
Chapter 2 “3-4. Aligning stacker roller position” (p.23)
7
Confirm the test folding finish.
When a folding misalignment is confirmed, check that it is the final sheet of test-folded paper.
In case of misalignment, see Chapter 3 “6. Adjusting Misalignment” (p.46).
8
Perform the operations in Chapter 2 “3-7. Setting counter” (p.25) to “3-8. Performing
The recommended value for processing speed is [
].
9
After the operation is ended, return the stacker roller position to [1].
