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Ron13863

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16 years ago

R

Ron13863

17 Posts

0

27889

September 3rd, 2007 15:00

3100cn 004-321 error

My 3100cn started showing a 004-321 error code.  I tried the fix of cleaning the silver square on the belt.  See the post by Dell-Bill B 07-04-2007 11:49 AM.     The error code continued so I cleaned the face of the sensor that reads the silver square.  Still getting the 004-321 at start-up I looked at the sensor connector and noticed it was not fully seated.  With a small screw driver I pushed the connector back in place.  The error code went away.

 

To check the sensor, first remove the drum unit.  The sensor is located above the developer units on the left.  The connector is on the left side of the sensor.

 

 

  • D

    drmojo

    2 Posts

    597

    0

    Posted September 30th, 2007 19:00

    Good tip...I tried that as well but to no avail. What I did was take apart the drum. I found that rubber sheet which goes around the rollers was misaligned. After taking apart the upper lid, I loosened one screw of the top roller which gave me enough slack to realign the rubber piece. I screwe-d it all back (7 screws were involved in total) and my drum worked fine. FYI, everything works fine...no issues at all printing, no loss in quality. Lastly, I ONLY did this b/c my warranty is already up. Most postings I saw called for a new drum...by golly I'm going to try and fix things first before I plunk down more money. In this case it worked.
  • G

    genesiscg

    1 Message

    597

    0

    Posted April 30th, 2011 08:00

    Disassembly of the drum and realignment of the belt did the trick.  The belt had migrated to the left far enough that the sensor did not see the silver square on the belt.

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