Read Panasonic FA-A888 Service Manual online
5-2
Code
J70
J71
J72
Check
1. Original feed roller is worn or dirty.
2. Foreign material is inside original feed section.
3. Drive mechanism of original feed
2. Foreign material is inside original feed section.
3. Drive mechanism of original feed
section is defective.
4. Original feed motor is defective.
5. CN4-1,2 of ADF CPU P.C.B is shorted or broken.
6. Original feed solenoid is defective.
7. CN4-3,4 of ADF CPU P.C.B is shorted or broken.
8. Original detecting sensor is defective.
9. CN2-1,2, of ADF CPU P.C.B is
5. CN4-1,2 of ADF CPU P.C.B is shorted or broken.
6. Original feed solenoid is defective.
7. CN4-3,4 of ADF CPU P.C.B is shorted or broken.
8. Original detecting sensor is defective.
9. CN2-1,2, of ADF CPU P.C.B is
shorted or broken.
10. Registration roller sensor is defective.
11. CN2-10,11,12,7 of ADF CPU P.C.B is
11. CN2-10,11,12,7 of ADF CPU P.C.B is
shorted or broken.
12. Timing sensor is defective.
13. CN2-7,8,9 of ADF CPU P.C.B is
13. CN2-7,8,9 of ADF CPU P.C.B is
shorted or broken.
14. ADF CPU P.C.B.is defective.
1. Transfer belt is worn or dirty.
2. Each roller is worn or dirty.
3. Foreign material is inside original
2. Each roller is worn or dirty.
3. Foreign material is inside original
transport / reverse / exit section.
4. Drive mechanism of original exit
section is defective.
5. Transport belt motor is defective.
6. CN3-1~6 of ADF CPU P.C.B is
6. CN3-1~6 of ADF CPU P.C.B is
shorted or broken.
7. Original reverse motor is defective.
8. CN6-3~8 of ADF CPU P.C.B is
8. CN6-3~8 of ADF CPU P.C.B is
shorted or broken.
9. Original reverse solenoid is defective.
10. CN7-4,5 of ADF CPU P.C.B is shorted
or broken.
11. Original exit/reverse sensor is
defective.
12. CN7-1,2,3,6 of ADF CPU P.C.B is
shorted or broken.
13. ADF CPU P.C.B.is defective.
Cause
Original feed section
a. When the registration
a. When the registration
roller sensor does not
detect an original within
the original feed motor
has started in forward
rotation.
detect an original within
the original feed motor
has started in forward
rotation.
b. When the registration
roller sensor detects an
original within a
predetermind time after
original feed motor has
started in reverse
rotation.
original within a
predetermind time after
original feed motor has
started in reverse
rotation.
c. The ADF entry paper
pass sensor is detecting
paper before using ADF.
paper before using ADF.
Original transport/reverse/exit section.
a. When the original exit/
a. When the original exit/
reverse sensor does not
detect an original within a
predetermind time after
transport belt motor has
started in forward rotation.
detect an original within a
predetermind time after
transport belt motor has
started in forward rotation.
b. When the trail edge of the
original is not detected
within a predetermind time
after the original exit/
reverse sensor detects the
lead edge of the original.
(exit operation)
within a predetermind time
after the original exit/
reverse sensor detects the
lead edge of the original.
(exit operation)
Original transport/reverse/exit section.
a. When the original exit/
a. When the original exit/
reverse sensor does not
detect an original within a
predetermind time after
transport belt motor has
started in reverse rotation.
detect an original within a
predetermind time after
transport belt motor has
started in reverse rotation.
b. When the trail edge of the
original is not detected
within a predetermind time
after the original exit/
reverse sensor detects the
lead edge of the original.
(reverse operation)
within a predetermind time
after the original exit/
reverse sensor detects the
lead edge of the original.
(reverse operation)
(
2) Paper Jam
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