TASKalfa 3500i - J631 X; J641 X; J650 X; 1. Corner folding;curling JAM (Image sample 1); 2. Paper trail end folding JAM (Image sample 2)

J631X / J641X / J650X (1/3)
1. Corner folding at paper leading edge or curling JAM (Image sample 1)
– It occurs since lower curled paper is caught by the cursor.
a. Replace the cursor.
2. Paper trail end folding JAM (Image sample 2)
It occurs since the opening of the Bundle discharge unit is
(b) slanting or (c) narrower.
(b) Correct the balance of the Bundle discharge unit.
(Check the front and rear opening balance by both pulleys while opening the Bundle Discharge Unit by
executing U240 MOTOR-EjectUnlock(30）
(c ) Place the MOUNT PI UPPER GUIDE
(a) Replace the cursor
303NB36031
CURSOR L MIDDLE TRAY
303NB36041
CURSOR R MIDDLE TRAY
Affected from：2012 Jan production
Ref.No.3NB-0017(C025)
(b) Correct the Gear mesh
View from main tray side
Inside of process tray
(Paper trail end side)
Corner
folding
(c) Replace the PI mount plate
303NB36321 MOUNT PI UPPER GUIDE
Affected from ： 2011 Oct. production
MOUNT PI UPPER GUIDE
Ref.No.3NB-0011(B403)
Image sample1
Image sample 2
3. JAM when the JAM paper occurs at J631* is not existed at the
Processing section.
d. Check whether the Actuator (DF middle sensor) is operating
smoothly without any problem.
Actuator (DF middle sensor)
DF-790 DF-770
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