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Author Topic: Ros Faults dt135  (Read 1029 times)

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Ros Faults dt135
« on: June 01, 2004, 05:22:47 PM »
 I have a docutech that  the laser is cutting out with vibrations of the machine at first I thought either electrical noise or bad connections but after swapping about everything.  the only thing that would fix the problem was to replace the whole Ros AY.  Now I have another customer who is having the same symptoms of P06-250, 251, 359, 364 and the Peak eos and ros Amcal are jumping all over the place.  Has anyone seen this and have any suggestions for repair?  Or do I need to swap the whole Laser AY.  <_<  
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KT6135

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Ros Faults dt135
« Reply #1 on: June 02, 2004, 08:29:02 PM »
 1-look at the plug for the toner connection to the floating connector.
2-look at the plug for the developer/fuser drive motor.
Now I have posted some posting for those exact codes on this forum.
My fix was the develpoer housing. I did change the HVDC first and it did go away, but it was the housing. :ph34r:  
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KT6135

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Ros Faults dt135
« Reply #2 on: June 02, 2004, 08:32:23 PM »
 Forgot, watch the fuser and developer drive motor to see if it is jumping sometime. You can remove the covers and check the drive belt. Check all drives for toner built up in the teeth. Also rid of all vibration if possible. Align all your dirves to rid of them.  :ph34r:  
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KT6135

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Ros Faults dt135
« Reply #3 on: June 02, 2004, 08:49:25 PM »
 Look in "Xerox"  :ph34r:  
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Ros Faults dt135
« Reply #4 on: June 10, 2004, 10:36:33 AM »
 There is an interlock to the ROS high voltage power supply on the photoreceptor drawer at the toner dispenser plug.  Look for a short loop of red 16 gague wire on the front side.  The  corresponding pins can be punched on the machine side of the connector,  and the wires butt-connected (where the harness comes in behind the frame).

This interlock serves no useful purpose, and can be troublesome in several instances, not just developer housing vibration.  Removing the interlock loop might be an issue if the machine were to go back onto Xerox service, but it would be easy to re-establish, and I doubt if it would be noticed.

The interlock is designed to turn the laser beam off if the drawer is open.  But, even with the drawer open, the laser beam is not going to focus on one point.  

HOWEVER, if you routinely remove the entire photoreceptor drawer assembly, and then lie on your back with your head in the machine, your face directly under the laser, looking up (at what??), then perhaps you should leave the interlock in place to prevent possible eye damage.

Besides, how many DocuTechs are going back on Xerox service???
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xtrain

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Ros Faults dt135
« Reply #5 on: June 18, 2004, 03:09:27 PM »
 John and KT are correct about checking for a faulty interlock for the ROS ac voltage at the rear of the toner dispenser. I have seen the photoreceptor drive  misaligned, and when drive is applied,  kicking the p/r drawer out opening this interlock momentarily and shutting off ac power to the ROS HVPS causing p06-250/251. I have also seen the main drive run capacitor relay and main drive start capacitor relay burned badly causing electrical spikes shutting off the ROS HVPS. The metering roll cause more electrical noise than any other component in the machine. Be sure to install 830E41040 grounding retrofit on all machines and use a braided ground wire to the metering roll. Hope this helps.

Daryle Lessard X Train Inc.
 
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Ros Faults dt135
« Reply #6 on: June 21, 2004, 10:15:44 PM »
 Thanks for the input.  I had already tried most of those things but it ended up being in the ribbon cable connection I had to extract the pins and clean individualy. That seemed to fix it.  I had another laser from a docutech that had some of the same issues cutting out it ended up being the HVPS relay for the laser.  laser tube lights coming on then going off.  wierd :blink:  
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