1-36
12H-M12M0-0309-0
2-6-10. Adjusting the parallelity of the folding stoppers
Adjust the parallelity of the lead edge of paper fed and folding stoppers of folding plates 1 and 2 to reduce folding
misalignment along the sides of the paper.
q Remove the paper feed tray lower cover, and adjust
the skew correction knob of the paper feed tray to the
standard position.
Adjust both the paper feed pressure and paper
separating pressure to “0” on the scale.
w Stack well aligned 80 g/m
2
(20 lb) fine quality paper
(vertical grain) on the paper feed tray, adjust the
paper feed guides to the paper width properly, and
secure them.
If the paper feed guides are not adjusted to the paper
width, folding misalignment along the sides of the
paper occurs.
e Select “Code No.28: Folding stopper parallelity
mode” of the maintenance mode, and press the start
key.
“3. MAINTENANCE MODE” in CHAPTER 2
ELECTRICAL COMPONENTS
For DF-920, selecting this mode and pressing the
start key causes the paper feed tray to rise
automatically, and the folding stoppers of folding
plates 1 and 2 move to the set position.
For DF-915, selecting this mode and pressing the
start key after lowering the paper feed tray up/down
lever and raising the paper feed tray moves the
folding stoppers to the set position.
SeeSee
Skew correction knob
Pin
<Standard
position>
Round hole
Idler roller
Jam correction knob
Paper feed ring
r Rotate the paper feed ring by hand, and feed the lead
edge of the paper to the idler roller.
t Rotate the jam correction knob, and move the lead
edge of the paper near the slide stopper of folding
plate 1.
Paper feed tray lower cover
Adjusting method when the folding mode is set to brochure fold
When adjusting the parallelity of the folding stoppers, there is a need to move the folding stoppers away from the
home position. When the folding mode is set to brochure fold, as the folding stoppers are set away from the home
position, parallelity deviation can be seen more clearly.
Set the folding mode to brochure fold after step w, and proceed to step e.
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