KV-S4065CL, KV-S4065CW, KV-S4065CWCN, KV-S4085CL, KV-S4085CW, KV-S4085CWCN - Panasonic Other Service Manuals Service Manual (repair manual). Page 122

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3. Exit Sensor does not work
correctly.

1. Execute “Key/Sensor” test in Sec. 9.3.6
to check the sensor condition.
2. Check the sensor alignment is proper.
 (whether the sensor direction faces its
 reflector)
3. Check the following connections and
soldering condition on each connector.
   a. CN3007 (EXIT SENSOR Board) to
       CN3004 (POINTER Board)
   b. CN3001 (POINTER Board) to CN1012
        (CONTROL Board)
4. Check the following signals.
   a. PEXIT signal (CN1012-4th pin)
     

→

 0 V (when none exists on the Exit Sensor)

   b. Check the reference signal for the EXIT
        signal on the CONTROL Board.
    

→

 IC1017-2nd pin: 1.5 V or less

    

→

 IC1020-3rd pin: Approx. 1.5 V

   c. Check comparator output signal.
   

→

 IC1020-2nd pin: 3.3 V (when no document

         exists)
5. Replace faulty parts or cables.

4. Mechanical problem (Drive
Rollers, Conveyor Belt, Conveyor)

1. Execute “Conveyor Motor” test in
    Sec.9.3.6 to check the mechanical condition.
2. Check whether the Drive Rollers(4, 5),
    Conveyor Belt, and the conveyor to support
    the Drive Rollers are assembled properly in
    the scanner.
3. Check the surfaces of the Drive Rollers
    (4, 5).
      a. Configuration:
        Are the rollers irregular in shape?
           (For example: Are the rollers swollen?)
             

→

 Replace the rollers.

      b. Whether the roller surfaces are dirty
            

→

 Clean the surfaces.

4. Check whether the Drive Belt tension is
proper.

U16 (Exit Jam1: Paper
did not pass through
the Exit Sensor)

16

00

00

00 1. Document remains forward

Exit Sensor.

Remove the document from the scanner.

2. Paper dust exists on or around
the Exit Sensor.

1. Blow off the dust with the accessory blower.
   (See Sec.7.2.)
2. Execute “Key / Sensor” and “Sensor
Sensitive Level” tests in Sec.9.3.6 to check
the sensor condition.

3. Mechanical problem (Exit Roller,
Conveyor Belt, Conveyor)

1. Execute “Conveyor Motor” test in
Sec.9.3.6 to check the mechanical condition.
2. Check whether the Drive Rollers (4, 5), Exit
    Roller, Conveyor Belt, and the conveyor to
    support the rollers are assembled properly in
    the scanner.
3. Check the surfaces of the Drive Rollers
    (4, 5), and of the Exit Roller.
    a. Configuration:
        Are the rollers irregular in shape?
          (For example: Are the rollers swollen?)
          

→

 Replace the rollers.

   b. Whether the roller surfaces are dirty
          

→

 Clean the surfaces.

4. Check whether the Conveyor Belt tension is
proper.
         

→

 Re-adjust the belt tension.

U17 (Exit jam2: Paper
did not pass through
the Drive Roller 3.) 

17

00

00

00 1. Document remains between the

Starting Sensor and Drive Roller 3.

Remove the document from the scanner.

2. Pointer is not mechanically
    switched to the straight-path
    mode. 

1.Check the pointer switch mechanism while
    opening or closing the Straight Path Tray.
2. Replace faulty parts.