Duplo DF-920 Instruction Manual Download

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20. TROUBLESHOOTING

Before calling your dealer, check the following.

Is there paper stacked on the paper
feed tray?
Is paper placed properly over the paper
switch of the paper feed tray?
Has paper jammed?
Is a cover open? (top cover, side cover,
paper ejection section cover)
Is non-standard paper used in standard
paper settings?

Is the paper size displayed on the LCD?

Is there a gap between the paper feed
guide and paper?
Is the control cord of folding plate 1 or 2
disconnected?

Is the power cord inserted into the
outlet?
Is a cover open?
Has paper jammed?

Is the control cord of folding plate 1 or 2
disconnected?

Are folding plates 1, 2 set properly?
Has static electricity occurred in the
paper?

Has the paper been fanned well?
Is the paper curled?
Is the paper conveyance route jammed
with paper chips, etc.?
Is the folding roller dirty?

Is the position of the stacker roller of the
paper ejection section incorrect?
Has static electricity occurred in the
paper?

Is the paper feed pressure value set too
high?
Is the paper separating pressure value
set too low?
Is the paper separator dirty?

Is the paper sticking to each other and
difficult to separate?

Is paper outside the specifications
used?

Stack paper.

Place paper over the paper switch so
that it is properly pressed.
Remove jammed paper.
Close open covers.

C h a n g e t o n o n - s t a n d a r d p a p e r
operations.

“11. STANDARD FOLDING OF NON-
STANDARD PAPER” (

☞

p.32)

Adjust the paper feed guides accurately
to the paper size on the paper feed tray
scale.
Adjust the paper feed guides to the
paper firmly, ensuring no gaps.
Turn off the power, and insert that
control cord into the connector.

Insert the power cord into the outlet.

Close open covers.
Remove jammed paper.

Turn off the power, and insert that
control cord into the connector.

Set folding plates 1, 2 again.
Lower the processing speed.
Fan the paper well.
Humidify with a humidifier as required.

Fan the paper well.
Correct the paper curl before use.
Inspect the inside of the unit, and
remove paper chips.
Clean with a cloth moistened with
alcohol.
Set the stacker roller position correctly
again.
Use a commercially available static
electricity removal spray.
Humidify with a humidifier as required.

Decrease the paper feed pressure.

I n c r e a s e t h e p a p e r s e p a r a t i n g
pressure.
Clean with a cloth moistened with
alcohol.
Check that the printing ink of the paper
has dried and there is no static
electricity, and then fan the paper well.
D o n o t u s e p a p e r o u t s i d e t h e
specifications.

Problem

Check

Correct

The unit does not start
even when the start key is
pressed.

The main motor does not
rotate.

The folding stopper of
folding plate 1 or 2 does
not operate.

Paper is not folded at the
normal folding position.

Paper jam occurs.

Paper is double-fed.

Note

If the motor is subject to abnormal load due to paper jamming, etc., power to the
motor will be cut off. Investigate the cause of the paper jam carefully. After
correcting the cause, turn on the power again and resume operations.

See