1-53
12H-M12M0-0309-0
4-5. Stopping Position of Paper Lead Edge Does Not Stabilize During Paper Feed,
and Paper Jams Near Paper Feed Inlet Sensor
Cause Solution
As the rotating load is too light
during paper feed drive, paper
continuous-feeds.
Wipe off a small amount of grease from the brake unit of the paper feed
clutch to decrease the amount.
If the brake unit has worn out, replace it.
“2-1-7. Attaching the brake unit”
4-6. When Paper Slips Frequently
Cause Solution
Contact resistance occurs when
the paper feed tray rises, and the
reference paper feed pressure is
insufficient.
The paper feed pressure
adjustment is inappropriate.
The up/down lever and bearing are
touching, and the reference paper
feed pressure is insufficient.
(DF-920 only)
When attaching the paper feed tray to the unit, ensure that thrust play is
appropriate.
“2-2-3. Attaching the paper feed tray assembly”
Re-adjust the reference paper feed pressure.
“2-2-4. Adjusting the paper feed pressure”
Adjust the microswitch detection position when the paper feed tray rises.
“2-2-7. Adjusting the stopping position of the paper feed tray
when rising/descending and paper stacking amount”
4-7. When Continuous-feed Occurs Frequently with Small Paper (B7, INV, etc.)
Cause Solution
The processing speed is too fast or
the paper feed pressure is too
high.
Set the processing speed to less than “4” and the paper feed pressure to “0”
or “–1”.
4-8. When Stacker Belt Slips
Cause Solution
The tension of the stacker belt is
too weak, or tension differs
between the left and right sides.
The Teflon tape on the stacker
plate has worn out.
Adjust the tension of the stacker belt.
“2-5-2. Adjusting the tension of the stacker belt”
Replace the Teflon tape.
“2-5-2. Adjusting the tension of the stacker belt”
4-9. When Folding Stopper Moves Abnormally Slow
Cause Solution
No thrust play of the screw shaft
unit.
The tension of the drive belt of the
screw shaft is too strong.
Adjust so that the thrust play becomes 0.1 to less than 0.15 mm (0.004" to
less than 0.006").
“2-6-2. Checking and adjusting the thrust play of the screw shaft
unit”
Adjust so that the belt slacks by the specified amount.
“2-6-4. Motor deceleration pulley assembly”
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