Hi everyone, got a bit of a head scratcher and any help would be very much appreciated.
We have a Utax cdc1930, which is a taskalfa 3050ci which is giving washed out black copies, only poor black, all other colours perfect, we changed the K dev unit, did all the dev set ups etc and the machine was fine, but after a day or so, the black was faint again, running a dev refresh and calibration brings it back up but it doesn`t last.
What we noticed was the black toner sensor control on auto is alot lower than the other readings at 138, the colours are up at around 160, if we put it on manual toner sensor control, the black stays black, but the colours overtone, but then if we take back off manual and on to auto, it goes back to under toning.
Just putting this out there to see if anyone has any suggestions as it is causing a few headaches, the firmware is all up to date, and all set ups have been done.
Any help or suggestions on this would be very much appreciated.
cheers.
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