Originally Posted by
blazebusiness
Nothing new, but this happens infrequently until now. Only posting due to a new trend, have had a huge increase of 4 series machines cyan dv units failing all of a sudden in the last 2 months on these models. Using oem drums and toners of course and not past life. When the dv unit goes bad / depleted, the coronas get full of blue toner. Almost always seems to be the cyan that goes bad.
Gonna try and phase out the remaining 4 series we have in the field and put 8 series or i series units in place instead.
P.S. Copytech site has been a great resource but the popup of ads is so annoying that I find myself using the site less and helping others less than I would like to. I would contribute/donate more $$$ like I've done in the past if that would result in the popup ads being removed. We always had banner ads but that wasn't really a bother like the popup ads.
Anyway, the fix is always - replace the cyan dv unit (and replace oem drum unit which shouldn't ever be run past life) and it is essential to never run the cyan tcr over the 0 level. Better even to reduce that tcr setting to -1 or so, but never increase it. Install the dv512K and swap out the wire and guide and the K DV reset chip will work for the colors.
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