Ricoh ошибка sc 390

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Thread: sc 390

1. 09-24-2011

   
   

   #1

   I’ve got an Aficio 1018 that’s generating sc390 after every 10 copies. I recently fitted new drum, cleaning blade and developer and changed the lower development unit gears (set). Vt is 0.00 even after I add toner manually!I have tried to do developer initailisation annd forced dev churning but no luck at all. Any suggestions will be greatly appreciated guys!

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2. 09-24-2011

   
   

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   Re: sc 390
   

   Originally Posted by mtekla
   

   I’ve got an Aficio 1018 that’s generating sc390 after every 10 copies. I recently fitted new drum, cleaning blade and developer and changed the lower development unit gears (set). Vt is 0.00 even after I add toner manually!I have tried to do developer initailisation annd forced dev churning but no luck at all. Any suggestions will be greatly appreciated guys!

   390 B TD sensor error
   Symptom
   The TD sensor outputs less than 0.2 V
   or more than 4.0 V 10 times
   consecutively during copying.
   Possible cause
   � TD sensor abnormal
   � Poor connection of the PCU

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3. 09-24-2011

   
   

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   Re: sc 390
   

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4. 09-24-2011

   
   

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   Re: sc 390
   

   Originally Posted by mtekla
   

   I’ve got an Aficio 1018 that’s generating sc390 after every 10 copies. I recently fitted new drum, cleaning blade and developer and changed the lower development unit gears (set). Vt is 0.00 even after I add toner manually!I have tried to do developer initailisation annd forced dev churning but no luck at all. Any suggestions will be greatly appreciated guys!

   If VT is 0.00v with a new dev you either have no connection to the TD sensor, have overtoned the dev by NOT covering the toner supply slot during setup, or the sensor is blown. Did you use a vacuum cleaner on the dev unit? If yes, you may have blown the sensor with static.

   You should NEVER add toner to a new dev! (Ricohtec) If you do you will NEVER get a good copy! In fact you MUST make sure NO extra toner gets into the dev unit until TD setup is complete.

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5. 09-24-2011

   
   

   #5

   Re: sc 390
   

   I initialised developer properly. The sc code started after I had changed the developer unit gears. The copies were very faint so I added toner manually after doing forced toner supply several times without success.

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6. 09-24-2011

   
   

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   Re: sc 390
   

   Originally Posted by mtekla
   

   I initialised developer properly. The sc code started after I had changed the developer unit gears. The copies were very faint so I added toner manually after doing forced toner supply several times without success.

   Did you check the TD reading before making copies or adding toner? After pouring the dev into the unit, assuming the new dev reached the TD sensor, you should still get a reading from the sensor. If you forced toner into the unit then checked the TD reading, it’s possible there is just far too much toner in there after you forced it. This would result in TD at 0v and SC 390. You may have some other fault causing the faint copies like a poor drum earth or dev bias connection… you have refitted the drive dog on the back of the pcu? if not, the drum will drive but the dev unit wll not.
   You must never, NEVER add toner or take a «normal» copy until the TD reading has been checked and I would always run 10 white copies and check VSP / VSG before removing the paper cover from the dev hopper. Once you add toner, if there is a problem, you will probably need another dev.

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7. 09-26-2011

   
   

   #7

   Re: sc 390
   

   Originally Posted by mtekla
   

   I initialised developer properly. The sc code started after I had changed the developer unit gears. The copies were very faint so I added toner manually after doing forced toner supply several times without success.

   Sounds like you might have a broken auger shaft in the dev unit.

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8. 09-26-2011

   
   

   #8

   Re: sc 390
   

   Originally Posted by RICOHTEC
   

   That looks like a B079 PCU.

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9. 09-26-2011

   
   

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   Re: sc 390
   

   Originally Posted by mtekla
   

   I initialised developer properly. The sc code started after I had changed the developer unit gears. The copies were very faint so I added toner manually after doing forced toner supply several times without success.

   You said that even after replacing new drum set and developer the copies were still faint. It happened to me two days ago when I replaced new drum set but still the copies were too light. I found out the transfer roller was not fixed properly. I would suggest that you remove the transfer roller and clean it. Make sure you clean properly the area where the transfer roller is fixed.

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10. 01-23-2012

    
    

    #10

    Re: sc 390
    

    Originally Posted by sharpmind
    

    You said that even after replacing new drum set and developer the copies were still faint. It happened to me two days ago when I replaced new drum set but still the copies were too light. I found out the transfer roller was not fixed properly. I would suggest that you remove the transfer roller and clean it. Make sure you clean properly the area where the transfer roller is fixed.

    I was facing the same problem and it solve after replac the power supply.. try this atleast..

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