KV-S7075C (serv.man2) - Panasonic Other Service Manuals Service Manual (repair manual). Page 118

118

U23 (Double-feed
error)

1C 00

xx

xx 1. Document quality is out of

    spec. on this scanner.

1. Set the correct documents on the
    Hopper according to this scanner
    specification.
    Note:

2. ADF is in MANUAL position. 1. Set the Manual Feed Selector to

    "AUTO".
2. Execute scanning, again.

3. Rollers (Paper Feed,
    Separation, DFP) are not
    assembled properly.

1. Reassemble the rollers.

4. Rollers (Paper Feed,
    Separation, DFP) are dirty.

1. Clean the rollers.
2. Clear counter for cleaning roller to zero
    with the above service utility. 

5. 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. Clear counter for replacing roller to zero
    with the above service utility.

6. Double Feed Detector does
    not work properly.

1. Execute “Double Feed” test in Sec.
    9.3.7. to adjust Send Level for Double
    Feed Detector.
2. Execute “Double Feed” test in Sec.
    9.3.6. to check the detector condition.
3. Check whether the Double Feed
    Detector is aligned property.
4. Check the following connections and
    soldering condition on each connector:

         

a. Double Feed Detector (G) to

            CN28 (SENSOR RELAY Board)
        b. CN29 (SENSOR RELAY Board)
            to CN2006 (CENTER Board)
        c. Double Feed Detector (R) to
           CN31(OUTER CONVEYOR Board)
        d. CN32(OUTER CONVEYOR
           Board) to CN2007 (CENTER
           Board)
5. Replace faulty parts or boards.