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101

Scanning position is 
shifted.

1. When reassembling CIS (F) or CIS (B) 

or mechanical parts related to 
conveying documents, Scanning 
position adjustment is not done.

Execute "All position" and/or "Individual 
position" in Sec. 

  to adjust the 

scanning position.

2. When replacing CONTROL Board, 

the adjustment is not done.

The document skews or 
has a crease when 
scanning

1. Document  Guides on Hopper Tray  are 

not set correctly.

Adjust the Document Guides correctly.

2. Rollers are dirty.

Clean the rollers.

3. Rollers are not attached to the default 

position properly when assembling.

Reassemble the rollers properly.

4. Rollers have reached their life 

expectancy.

Replace the rollers after inspecting them.

Scanned Image color 
tone Problems 
(ex: Right and left color 
tone are different  after 
Shading correction.)

1. During the shading correction, the 

shading sheet  is set in portrait 
orientation, not landscape.

Set the right shading sheet 
(Part No.: PJQXC0330Z-J) in landscape 
orientation and carry out the shading 
correction.

2. The right shading sheet is not used for 

the shading correction.

102

U11(Paper Feed Jam: 
Paper did not reach the 
Waiting Sensor)

11

00

00

00 1. Paper Feed Roller module or 

DFP Roller is not assembled 
properly.

1. Reassemble the rollers.
2. Check the paper feed mechanism from the
    Paper Feed Motor's gear to Paper Feed
    Roller's gear.

2. Rollers (Paper Feed, 

Separation, DFP) are dirty.

1. Clean the rollers. (See Sec.9.)
2. Set “After Clean Roller Counter” to zero 

(0) from the operation panel. See 16. 
Appendix (Operating Manual P.76 ).

3. Rollers have reached their life 

expectancy.

1. Replace the Paper Feed, Separation, and 
    DFP Rollers after checking each roller 
    configuration and Scanner Counter of 
    Service Utility software.
2. Set “After Replace Roller Counter” to zero 

(0) from the operation panel. See 16. 
Appendix (Operating Manual P.82 ).

4. Paper dust exists on or around 

the Waiting Sensor.

1. Clean up the dirt with cleaning paper or 

cotton swab or soft and dry cloth. 
(See Sec 9.)

2. Execute “Key / Sensor” tests in Sec. 10.3.7. 

and “Sensor sensitive level” in Sec. 
10.3.8. to check the Waiting Sensor 
condition.

5. Waiting Sensor does not work 

correctly.

1. Execute Key/Sensor tests in Sec. 10.3.7. 

and “Sensor sensitive level” in Sec. 
10.3.8. to check the Waiting Sensor 
condition.

2. Check the mounting of the lens of the waiting 

Sensor. 

3. Check the following connection and
    soldering condition on each connector.

a. CN3750 (USS(R) / WAITING SENSOR

        Board) to CN3005 (UPPER RELAY Board)

b. CN3004 (UPPER RELAY Board) to 

CN19 (CONTROL Board)

4. Check the following signals.

a. WAITING signal  CN19-29th pin: 
    Approx. 5 V (no paper on the Sensor) 
b. Reference signal for the WAITING signal 

on the CONTROL Board.
IC43-3rd pin: Approx. 2.5 V

c. Comparator output  IC43-1st pin: 5 V

(no paper on the  sensor)

5. Replace faulty parts or cables.

6. Paper Feed Motor does not work

properly.

1. Check the motor  mechanism by carrying out 

“Feed motor” test. (Sec. 10.3.7.)

2. Check the connection between Paper feed 

motor and CN2014 (DRIVE Board)

3. Try to exchange two of FFC cable between 

the DRIVE Board and the CONTROL Board
(If repaired, FFC cable breakage)

4. Replace the paper feed motor cable. 
5. Replace the paper feed motor. 
6. Replace the DRIVE Board.

U12 (Conveyor Jam1:
Paper did not reach the 
Slip Detect Sensor.)     

12

xx

00

00

1. Document remains between 

Waiting Sensor and Slip Detect  
Sensor.

Remove the document from the scanner.

2. Paper dust exists on or around 

the Slip Detect Sensor.

1. Clean up the dirt with cleaning paper or 

cotton swab or soft and dry cloth. 
(See Sec. 9.)

2. Execute “Key/Sensor” tests in Sec. 10.3.7. 

and “Sensor sensitive level” in Sec. 
10.3.8. to check the sensor condition.

103

3. Slip Detect Sensor does not 

work, correctly.

1. Execute “Key/Sensor” test in the Sec. 

10.3.7. to check the sensor condition.

2. Check the  mounting of the lens of the Slip 

detect Sensor.

3. Check the following connection and
    soldering condition on each connector.

a. CN5140 (SLIP/STARTING SENSOR 

Board) to CN3300 (LOWER RELAY 
Board)

b. CN3304 (LOWER RELAY Board) to 

CN18(CONTROL Board)

4. Check the following signals.

a. Slip detect Sensor signal (CN18-17th pin)

Approx. 5 V (paper exists)

b. Check the reference signal for the Slip 

detect Sensor signal on the CONTROL 
Board.
IC41-5th pin: Approx. 2.5 V

c. Check comparator output signal.

IC41-7th pin: 5.0 V
 (no paper on the sensor)

5. Replace faulty parts or boards.

4. Mechanical problem (Drive 

Roller, Drive Belt, Conveyor)

1. Execute “Feed motor” and “Conveyor 

motor” tests in Sec. 10.3.7. to check the 
mechanical condition.

2. Check whether the Drive Rollers
    (especially Drive Roller 1), the Drive belt, and
    the conveyor to support the Drive Rollers are
    put together into the scanner, properly.
3. Check the surfaces of the Drive Roller 1.
      a. If it is deformed
          

 Replace the roller.

      b. If the surface is dirty
          

 Clean the surface.

4. Check whether the Drive Belt tension is 

proper.
 Re-adjust the belt tension.

5. Conveyor Motor does not work 

properly.

1. Check the motor mechanism condition by
    carrying out “Conveyor motor” test.

(See Sec. 10.3.7.)

2. Check the connection between the Conveyor 

motor and CN2011 (DRIVE Board) 

3. Try to exchange two of FFC cable between 

the DRIVE Board and the CONTROL Board. 
(If repaired, FFC cable breakage).

4. Replace Conveyor Motor. 

6. Conveyor Motor circuit does not 

work properly.

1. Check the following connection and 

soldering on each connector.    
 CN15 (CONTROL Board) to CN2008
     (DRIVE Board)

2. Check the soldering of IC2014 and the 

peripheral parts on DRIVE Board.

3. Check the following signals on the DRIVE 

Board.
a. IC2014-12th pin (CLK): See Fig. 1.
b. IC2014-19th pin (VREF): 2.3V or less.
c. IC2014-15th pin (ENABLE): 3.3 V 
     (when executing Conveyor motor test)

7. DFP Pressure Motor does not 

work properly.

1. Check the motor mechanism condition by 

carrying out “DFP pressure drive” test.
(See Sec. 10.3.7.)

2. Check the connection between DFP Pres-

sure Motor and CN2016 (DRIVE Board)

3. Replace faulty cable.
4. Replace DFP Pressure Motor.

104

8. DFP Pressure Motor circuit does 

not work properly.

1. Check the following connection and 

soldering on each connector.
 CN15 (CONTROL Board) to CN2008
    (DRIVE Board) 

2. Check the soldering of IC2020 and the 

peripheral parts on DRIVE Board.

3. Check the following signals on the DRIVE 

Board.
a. IC2020-29th pin (CLK): See Fig. 1.
b. IC2020-22,23th pin (VREF): 2.3V or less.
c. IC2020-18th pin (ENABLE): 3.3 V
    (when executing Conveyor motor test)

9. Paper Feed Roller module or 

DFP Roller is not assembled 
properly.

Refer to the 1st item on Error Code U11.

10. Rollers (Paper Feed, 

Separation, DFP) are dirty.

Refer to the 2nd item on Error Code U11.

11. Rollers have reached their life 

expectancy.

Refer to the 3rd item on Error Code U11.

U13 (Conveyor Jam2: 
Paper did not reach the 
Starting Sensor.)

13

00

00

00 1. Document remains between 

Starting Sensor and Slip Detect 
Sensor.

Remove the document from the scanner.

2. Paper dust exists on or around

Starting Sensor.

1. Clean up the dirt with cleaning paper or 

cotton swab or soft and dry cloth. 
(See Sec. 9.)

2. Execute “Key/Sensor” tests in Sec. 10.3.7. 

and “Sensor sensitive level” in Sec. 
10.3.8. to check the Starting Sensor 
condition.

3. Starting Sensor does not work, 

correctly.

1. Execute “Key/Sensor” test in the Sec. 

10.3.7. to check the sensor condition.

2. Check the mounting of the lens of the 

Starting Sensor. 

3. Check the following connection and 

soldering condition on each connector.
a. CN5140 (SLIP/STARTING SENSOR    
    Board) to CN3300 (LOWER RELAY 
    Board)
b. CN3304 (LOWER RELAY Board) to 
    CN18 (CONTROL Board)

4.  Check the following signals.

a. Starting Sensor signal CN18-19th pin:    
    Approx. 5 V (no paper on the sensor) 
b. Check the reference signal for the Starting 
    Sensor signal on the CONTROL Board.
    IC41-3rd pin: Approx. 2.5 V
c. Check comparator output signal.

        IC41-1st pin: 5 V (no paper on the sensor)
5. Replace faulty parts or boards.

4. Mechanical problem (Drive
    Rollers, Drive Belt)

1. Check the  Starting Sensor’s mechanical 

position and its status.

2. Execute “Conveyor motor” test in Sec. 

10.3.7. to check the mechanical condition.

3. Check whether the Drive Rollers (1 and 2), 
    and Drive Belt, and also check whether the
    conveyors to support the Drive Rollers are
     put together into the scanner, properly.
4. Check the surfaces of the Drive Rollers 
    (1 and 2).
     a. If it is deformed

     

 Replace the roller.

 b. If the surface is dirty
     

 Clean the surface.

5. Check whether the Drive Belt tension is
     proper.
     

Re-adjust the belt tension.