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ColorQube 8570DN printing offset

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Our ColorQube 8570DN has frequently an extreme blur by printing offset. I would ike to know if there ist any possibility to fix this by settings or if we have to dispose the printer according to repair rates near to the price of a new one.

 

This is a picture of the gap test, which shows the problem:

LT.jpg

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Re: ColorQube 8570DN printing offset

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It looks like maybe the sensor wheel for the drum has some oil on it.  I've seen that affect the quality of print similar to the example you posted.

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Re: ColorQube 8570DN printing offset

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Thank You! This sounds very good. I will check this. Do You know, where the sensor wheel ist located at the 8570?

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Re: ColorQube 8570DN printing offset

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There actually was some oil on the sensor wheel. Cleaned it and everything is fine. THANK YOU SO MUCH!

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Re: ColorQube 8570DN printing offset

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I have the exact same problem. I've tried Xerox "support" and they said there wasn't any information on how to clean " the sensor wheel for the drum has some oil".Where/how did you locate the senor wheel?  Thanks for your help!

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Re: ColorQube 8570DN printing offset

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I have the exact same problem. I've tried Xerox "support" and they said there wasn't any information on how to clean "the sensor wheel for the drum has some oil". Where is the senor wheel?  Thanks for your help!

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Re: ColorQube 8570DN printing offset

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I will give You detailed Information but it may take until Monday.

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Re: ColorQube 8570DN printing offset

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Thank you very much!

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Re: ColorQube 8570DN printing offset

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It's located on the right side (the one with the flaps). Steps:

 

1. Remove right covering. Just one screw at the back.

Removing cover

 

2. Remove big Fan with three screws and a plug.

Removed Fan

 

3. Now You will see the housing of the sensor wheel. Unplug the the cables in the middle (red, white, 2 x purple and black). Plugs are not in the picture. Then carefully pull them out of the hooks. Now You can open the five clips and remove the lid. It's the whole semi-transparent thing.

Sensor wheel housing

 

4. Now You can see the sensor wheel. It's the plastic disc with the text „REV 2.0“ etc. on it. If You look very closely, You will see, that the thick gray line on the edge consists of tiny lines. If there is oil on them, the optical sensor (black box on 7:30 position) can not differentiate them any more. It's easy to clean them on the outside. I used Isopropyl Alcohol.

Attention: The x-shaped heating item in the middle (where the cables go to) has turned and You will have to remeber that when reassembling.

 Sensor wheel cover removed

 

5. To clean the wheel on the inner side You need to remove the optical sensor by removing the metal clip.

Sensor removed

 

6. When reassemble the lid it's difficult to get the cables in the middle in the right order as well as the heatig unit which has turned. Please refer to picture 3.

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Re: ColorQube 8570DN printing offset

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Thank you for the detailed instructions. The photos are blocked? or for some reason do not appear in the forum answer. Is there another place or way for me to view them. I think the photos would be vey helpful as guides. 

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