I Have a problem wiyh the colour reg/calibration on this machine. It was installed into customer site today with latest firmware, working fine in the workshop. Anyway since installation black has become very feint, magenta none existant and cyan feint- yellow ok. Took out all drums, devs and belt unit, checked laser slit glass, did drum refresh, dev refresh, attempted colour reg and calibration but half of the data is missing fom the page. Absolutely no error codes. We're only a recent (6 months) Utax dealer so aren't too familiar with fualts. Utax helpline USELESS! Any help out ther would be greatly appreciated.

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