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The self-diagnosis function detects troubles in important areas of the ADF. When

any trouble occurs, the machine is stopped. The error indication appears in the

"digit" display of the copier ( except J70 ) and the "Wait" indicator on the copier turns

ON.

Problem

a. ADF is not closed

securely.

b. Original feed cover is not

closed securely.

c. Original exit cover is not

closed securely.

Note : When the original is

placed in the original

feed tray, the user error

is detected.

Cause / Check

1. The ADF is not installed correctly

2. The ADF is open.

3. CN4-7, 8 of ADF CPU P.C.B. is

broken.

4. ADF open/close detection switch is

defective.

5. Original feed cover is open.

6. CN4-5,6 of ADF CPU P.C.B. is broken.

7. Original feed cover open/close

detection switch is defective.

8. Original exit cover is open.

9. CN6-1,2 of ADF CPU P.C.B. is broken.

10. O r i g i n a l   e x i t   c o v e r   o p e n / c l o s e

detection switch is defective.

11. ADF CPU P.C.B. is defective.

Code

U10

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

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

shorted or broken.

10. Registration roller sensor is defective.
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

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

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

shorted or broken.

7. Original reverse motor is defective.
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

roller sensor does not
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.

c. The ADF entry paper

pass sensor is detecting
paper before using ADF.

Original transport/reverse/exit section.
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.

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)

Original transport/reverse/exit section.
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.

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)

Check

1. ADF transport belt motor is defective.

2. CN3-1~6 of ADF CPU P.C.B is

shorted or broken.

3. Drive mechanism of transport belt

motor is defective.

4. ADF CPU P.C.B.is defective.

1. Original feed motor is defective.

2. CN4-1,2 of ADF CPU P.C.B is shorted

or broken.

3. Drive mechanism of original feed

motor is defective.

4. ADF CPU P.C.B.is defective.

1. Original reverse motor is defective.

2. CN6-3~8 of ADF CPU P.C.B is

shorted or broken.

3. Drive mechanism of the original

reverse motor is defective.

4. ADF CPU P.C.B.is defective.

1. Sensor is defective.

2. Sensor output is detected without a

predetermined output.

3. ADF CPU P.C.B.is defective.

Code

10

10

10

11

11

Cause

ADF transport belt motor

rotation

ADF original feed motor

rotation

ADF original reverse motor

 rotation

ADF registration roller or

timing sensor output

abnormal

ADF original exit / reverse

sensor output abnormal

Hinge positioning screws (x2)

Original tray mounting screws (x2)

Hinge mounting screws (x2)

SV046

Original feed tray (x1)

Magnet catch plate (x2)

Anti-electrostatic liquid

(Not packaged with machine)