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113

Without connecting the scanner to the PC, the following scanner self-test can be performed. The following mechanical test is
generally used after replacing or reassembling rollers (Drive Rollers) and other mechanical parts related to feeding documents. 

1. Paper Feed
Motor rotation

1 While pushing the “START/STOP Key” on the Control

Panel, turn on the scanner. 

—

—

2 Release the key after LED (Back) status changes to

blinking.

OFF 

→

 

Blinking

3 Push the “START/STOP Key” once to enter the test 

selection mode.

Blinking 

→

Count

4 Push the “START/STOP Key” once at the timing when

LED (Back) status is 1 (h) 

.

5 Push the “START/STOP Key” to start rotating the

Paper Feed Motor and Separation Motor.

6 Push the “START/STOP Key” to stop the rotating. 

7 Turn off the scanner to finish this test.

—

—

2. Conveyor
Motor rotation

1 While pushing the “START/STOP Key” on the Control

Panel, turn on the scanner. 

—

—

2 Release the key after LED (Back) status changes to

blinking.

OFF 

→

 

Blinking

3 Push the “START/STOP Key” once to enter the test 

selection mode.

Blinking 

→

Count

4 Push the “START/STOP Key” once at the timing when

LED (Back) status is 2 (h) 

.

5 Push the “START/STOP Key” to start rotating the

Conveyor Motor.

6 Push the “START/STOP Key” to stop the rotating. 

7 Turn off the scanner to finish this test.

—

—

3. DFP Pressure
Motor rotation

1 While pushing the “START/STOP Key” on the Control

Panel, turn on the scanner. 

—

—

2 Release the key after LED (Back) status changes to

blinking.

OFF

→

Blinking

3 Push the “START/STOP Key” once to enter the test 

selection mode.

Blinking 

→

Count

4 Push the “START/STOP Key” once at the timing when

LED (Back) status is 3 (h) 

.

5 Push the “START/STOP Key” to start rotating the

DFP Pressure Motor.

6 Push the “START/STOP Key” to stop the rotating. 

7 Turn off the scanner to finish this test.

—

—

4. Hopper Drive

1 While pushing the “START/STOP Key” on the Control

Panel, turn on the scanner. 

—

—

2 Release the key after LED (Back) status changes to

blinking.

OFF 

→

 

Blinking

3 Push the “START/STOP Key” once to enter the test 

selection mode.

Blinking 

→

Count

4 Push the “START/STOP Key” once at the timing when

LED (Back) status is 4 (h) 

. 

5 Push the “START/STOP Key” to start rotating the

Hopper Motor to raise or lower the Hopper.

6 Push the “START/STOP Key” to stop the rotating. 

7 Turn off the scanner to finish this test.

—

—

114

5. Feed

1 While pushing the “START/STOP Key” on the Control

Panel, turn on the scanner. 

—

—

2 Release the key after LED (Back) status changes to

blinking.

OFF 

→

 

Blinking

3 Push the “START/STOP Key” once to enter the test 

selection mode.

Blinking 

→

Count

4 Push the “START/STOP Key” once at the timing when

LED (Back) status is 5 (h) 

. 

5 Set documents on the Feed Tray. 

6 Push the “START/STOP Key” to feed documents.

7 Turn off the scanner to finish this test.

—

—

6. Shading

1 While pushing the “START/STOP Key” on the Control

Panel, turn on the scanner. 

—

—

Before executing the
shading function, be
sure to clean the
Image Sensor
Covers ((F), (B)),
Reference
Plates ((F), (B)),
rollers, and
conveyors related to
conveying
documents. 

Until this process
is completed,
don’t stop the
process by
opening any doors
or turning off the
scanner. 

2 Release the key after LED (Back) status changes to

blinking.

OFF 

→

 

Blinking

3 Set the Shading Paper (Part No.: See 14.6.) on the

Hopper Tray in landscape orientation.

OFF 

→

 

Blinking

4 Push the “START/STOP Key” once to enter the test 

selection mode.

Blinking 

→

Count

5 Push the “START/STOP Key” once at the timing when

LED (Back) status is 6 (h) 

. 

6 Push the “START/STOP Key” for 5 seconds or more to

start shading.

7 When the Ready and Error Indicators start to blink,

switch Reference Plates to white after opening the Front
Door. And then close the Front Door.    

8 Paper feeding starts to execute the shading.

(At this time, the Error Indicator status changes from
blinking to OFF.)   

9 When the Ready and Error Indicators start to blink

again, switch Reference Plates to black after opening
the Front Door. And then close the Front Door.    

10 After confirming the Ready Indicator turns ON and the

Error Indicator turn OFF, turn off the scanner to finish
this test.

—

115

7. 

 CIS LED

 Lamp Test

1 While pushing the “START/STOP Key” on the Control

Panel, turn on the scanner. 

—

—

*9: Every time you
 push the
“START/STOP”
Key, the lamp
status will change
periodically, as
follows.

Lamp (F) ON
Lamp (B) OFF 
        

↓

Lamp (F) OFF
Lamp (B) ON
        

↓

Lamp (F) ON
Lamp (B) ON
        

↓

Lamp (F) OFF
Lamp (B) OFF
          

↓

 

Lamp (F) ON
Lamp (B) OFF
          

↓

 

2 Release the key after LED (Back) status changes to

blinking.

OFF 

→

 

Blinking

3 Push the “START/STOP Key” once to enter the test

selection mode.

Blinking 

→

Count

4 Push the “START/STOP Key” once at the timing when

LED (Back) status is 7 (h) 

. 

5 Push the “START/STOP Key” once to turn on the CIS

LED Lamp (F). 

6 Push the “START/STOP Key” once to turn off the CIS

LED Lamp (F) and to turn on the CIS LED Lamp (B).

7 Push the “START/STOP Key” once to turn on the CIS

LED Lamp (F) and CIS LED Lamp (B).

8 Push the “START/STOP Key” once to turn off the CIS

LED Lamp (F) and CIS LED Lamp (B).

9 Turn off the scanner to finish this test.

—

—

116

No power

1. Power cord is not inserted correctly

Insert the power cord correctly.

2. Cables in the scanner are not connected
properly. (especially around POWER Board)

Insert the cables properly.

Pay attention
when 
reassembling
the scanner.

3. FAN 1 does not rotate.

1. Try to rotate the FAN 1, manually.
2. Remove the FAN 1.

4. Power circuit (including one of the safety
    circuits) does not work correctly.

1. Replace POWER Board.

5. LED (Indicators) or its drive circuit does not
    work correctly.

1. Replace CONTROL Board.
2. Replace DRIVE Board.
3. Replace PANEL Board.

6. Boot program for this scanner does not work
    correctly.

1. Replace CONTROL Board.

Scanned image has some
problems (ex: black line or
band, white line or band) 

1. Dust on Image Sensor Cover (F) or Image
   Sensor Cover (B) 

Clean the cover surface.

2. Dust on the CIS lens inside Image Sensor
   Cover 

Remove the cover, and then clean the lens.

3. CIS ((F) or (B)) or AFE ((F) or (B)) Board is
    broken.

1. Execute “Image Sensor Output" in Sec. 9.3.6
    to check the CIS condition. 
2. Replace the CIS ((F) or (B)).
3. Replace the AFE ((F) or (B)) Board.

Scanning position is
shifted.

1. When reassembling CIS or mechanical parts
   related to conveying documents,
    re-adjustment is not done. 

Execute “All Position" and/or "Individual
Position" in Sec. 9.3.7 to adjust the scanning
position.

2. When replacing CONTROL Board, CIS, or
   mechanical parts related to conveying
   documents, re-adjustment is not done.

Execute "All Position" and/or " Individual
Position" in Sec. 9.3.7 to adjust the scanning
position.

The document skews or
has a crease when
scanning.

1. Document Guides are not set to match the
    size of the document on the Hopper Tray.

Set the Document Guides correctly.

2. Rollers are dirty.

Clean the rollers.

3. Rollers are not properly attached to the
    default position when assembling.

Assemble the rollers properly again.

4. Rollers have reached their life expectancy

Replace the rollers after inspecting them.

5. The Roller Pressure Sensor is not adjusted
    properly.

1. Execute "Roller Pressure Sensor Level" in
    Sec. 9.3.6 to check the pressure to the Paper
    Feed Roller.
2. Re-assemble the spring. (Location: See 8.3.26.)
3. Check the following connection and soldering
 condition on each connector.
    a. CN1016 (CONTROL Board) to Relay
          connector (Roller Holder Unit)
     b. Relay connector to Roller Pressure Sensor

4. Check the following parts' soldering condition to
  repair it.
   

→

 CN1016, IC1022, IC1023, IC1024, and their

        surrounding circuits
5. Check the following signals.
   

→

 CN1016-1st pin: 500 Hz (See Fig.1.)

   

→

 CN1016-2nd pin: 5 V

    

→

 CN1016-3rd pin: 5V or less pulse (See Fig.2.)

6. Replace faulty parts or boards.