Originally Posted by
jozef
Ok, interesting. Your first post asked if I changed anything. Another posts states "Just replacing the Cyan IU will fix the fault." I was looking for some pearls of wisdom regarding the C250 which might be from my missing Service Bulletins. Or, acquired by someone doing this for years on this unit. For example, in Sharp copiers, if the dev is really low or moved to one side, you'll get this type of copy quality problem and it's NOT the IU.
Sure, replacing the Cyan IU should fix it. So will buying a new machine. Customers just love the answer about "let's start changing parts." In fact one customer told me "I don't call you guys out because all you want to do all the time is sell me parts."
FYI, if you care to know, this problem can be caused by these types of issues:
An IU that failed the high demand for toner - solution: Feed blank sheets
A dirty IU - solution: clean it
a PH Windows that's dirty - solution: clean it
Frozen cam gear on Image Xfer Belt Unit - solution: replace ITBU
Bad High Voltage Unit (image Transfer, Neutralizing)
TCR malfunction (TCR Sensor) or low Vg or Vdc
Sorry, NONE of these involve replacing the IU.
I simply asked the wrong person. I was looking for someone that maybe had a lot of experience with this machine that could point out other things to try.
Thanks though, I'll remember that I can just start replacing things when something goes wrong. Glad you reminded me. That's a strategy that always works. Keeps us all working too, especially in the overseas facilities where the parts are made...That's was the first poster's worry.
Thanks for making an innocent request for contributions and some troubleshooting lore, on a technical forum, all about your opinions.
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