enx magazine

Question: I changed the T/D unit, Exposure lamp, the drum unit and cleaned the optics. I believe you can see the light copy on one side when I use reduction also. Copy on glass or SPF, same thing. I am looking around for a T/S corona that I have around here somewhere. Any other suggestions? Thanks.
Answer: You can completely disassemble that Trxfer unit, clean it thoroughly, restring it, and then your problems should go away. Of course, swapping it out would be easier, but if you can't find it, don't waste too much time because I rarely have to replace those units. Just clean them real good and restring. That does sound like the root of your problems though. Good luck

Answer: Also, check the laser unit. I had one that was very dirty and made everything look faded and uneven.

Answer: I don't think this machine has a laser unit, only mirrors and lenses. Let me know if I am mistaken.

Answer: No you are right, just clean and restring the wire (T/S corona).

Question: I took a look at the machine again. I ran and stopped the machine and looked at a black image on the drum, but the front side is still light.
So transfer corona is not going to help.

Answer: Based on your last post, I would look at the main charge wire and grid. Also, check the optics to see if one of the mirrors is loose or the carriage is bent; that would cause this to occur.

Answer: Uhm...your test is inconclusive. The HVT is powering 3 things: DV bias, Txfer, and Primary Charge. If you have a drainage coming from an arcing Txfer, it will affect bias and primary charge. I've seen it too many times, and it's not that big of a step. The worst case scenario prevents a very common issue in the near future but still requires you to replace the toner cartridge…Fix the Txfer first.

Answer: I looked back and you have already replaced the toner and drum so that eliminates the primary (assuming you did replace it as a unit) and the toner. Your problem is still most likely the transfer but just as an off-the-wall what if...does your copy come out clear if you press on the top of the machine while making your test? Check the clamshell latches for cracks. Good luck!

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