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FB 950 Wiper Service Station Failing To Home

Discussion in 'Hewlett Packard' started by Perryb, Aug 20, 2012.

  1. Perryb

    Perryb New Member

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    Dec 28, 2003
    Good Day From The Uk Hope All Is Well Over The Other Side of the Pond. As A regular viewer of Signs 101 Over the Past 4 years & An Occasional Contributor In The Zund Forum May I Seek The Advice & Expertise Of Others Here. We Have Run Into An Unusual Problem With Our Fb950 Which Has Given Faultless Service. We Have For No Apparent Reason Be Suffering Recently With The Service Station Failing To Home Properly. The Motor Judders For Approx 5-7 Seconds Trying To reach the Home Position Before The Error Message On Screen Confirms Failure To Home. We Have Done All The Obvious Things, Cleaned & Greased The Slide Rails, Checked The Tension On The Belt & Have Replaced The Motor. We Have Removed The Drive Belt & Still The Motor Judders Which Leads Me To Suspect That It Is Not A Motor Or Homing Sensor Fault. Can I Ask If Any FB950 Owners Have Had This Issue & Is There An Easy fix Or Something Else I Could Try Before I Call A Technician. Thank You In Anticiptaion
     
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  2. SignManiac

    SignManiac Major Contributor

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    Mar 25, 2006
    Mars Florida
    Try and thoroughly clean the encoder strip with 50% alcohol (only on the top part, not the bottom). Also try to clean the encoder reader but its hard to reach. Check around the service station, "Gears, rails" to see if there's any built up ink. Final check User diagnostic to see if the printer knows when the service station is at it's home position.
     
  3. Perryb

    Perryb New Member

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    Dec 28, 2003
    Wiper Station Fault Fb950

    Thank You For The Reply But I Should Have Said Its The Wiper Station That Is Causing The Issue . The Main Carriage Functions Correctly..Its Only When You Purge The Heads That The Fault Occurs Or At Initial Startup Where It Goes Through Its |Self Test Routine. Thank You However For the Courtesy Of A Reply & Help
     
  4. MikePro

    MikePro Major Contributor

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    Feb 3, 2010
    Racine, WI
    i don't know if this helps, but I get wiper errors on my JV3 when ink builds up over time. the sensor is actually a trigger/switch that, when ink builds up, cannot open/close properly.

    i've also had issues when the ink builds up on the gears that control the belt that moves the wiper. a toothbrush and a shotglass full of acetone scrubs away this mess, I've also saved time by chiseling-away most of the heavy chunks of ink with a small flathead screwdriver before finishing up with the toothbrush.
     
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