C6500 dev problem (and 45-20)

[dagoof]

Re: C6500 dev problem (and 45-20)

Thanks for the advice guys, managed to squeeze in a few hours today - swapped C/M drums around (no luck), then swapped the same devs (no joy either). Then put a new transfer belt on, still no joy - the cyan test sheet was a lot better than before too, only minor bleaching in 2 corners

[27842]

Re: C6500 dev problem (and 45-20)

Dagoof after reading your last post iam not to sure what you are saying.You swapped devs- did the magenta copy look bad, if bad copy quality, cyan transfer roller could be bad.And the cyan copy when swapped did it look better if no cyan developer unit on its way out. Good luck

[dagoof]

Re: C6500 dev problem (and 45-20)

To be honest, I hadn't run the different colour tests, just swapped the devs back when it 45-20'd again - I'll try and run more tests today. Are there any other indications on how to tell if the Cyan transfer roller is bad?

[27842]

Re: C6500 dev problem (and 45-20)

Best way to tell, is swap with other color roller, some times the rollers could be out of its socket or bad terminal connection. i know its a pain taking apart transfer unit after putting in new transfer belt. Run solid copies on all colors in test mode and also black at 150% , if the cyan copy is the only color thats bad, Has to be related to the cyan, drum, corona, dev unit, cyan tranfer roller, sometimes bias board but not likely or maybe Drum drive motor . If the customer is a print shop and still having problems with code 45-20 do full PM the copier youre working on needs it anyway. IF error 45-20 prevents you from trouble shooting you can disable color registration by software switch 25 bit 3 to 1 and bit 4 to 0 hope this works. When fixed, bit switches should be put back to original settings.

[dagoof]

Re: C6500 dev problem (and 45-20)

Thanks 27842, you've been really helpful. Will experiment further when I get the chance and let you know how it goes!