PDA

View Full Version : BizHub C-451 print quality problems


Custom Search


aAandy
06-26-2015, 06:16 AM
hello everywon

received an email from a client with samples of what their machine is doing

normal prints, then washed out prints, then registration problem, then cleaning blade problem,,,,, client turns the machine off/on & it runs several hundred prints OK,,,, once it starts playing up again they turn it off/on and can print another few hundred

this machine has had the K drum unit modification fitted to ensure it is correctly seated

any pointers would be very much appreciated

thanks in advance

2960429607

Albonline
06-26-2015, 04:33 PM
this usually turns out to be a hv arc, is the inside of the unit filthy with developer?

EarthKmTech
06-26-2015, 09:15 PM
i've had that before too on a c550.

If any of the imaging units are tracking developer on the belt and it ends up in your 2nd transfer roller it will cause this.

junky old machines like the c451 do this alot especially if the transfer belt is leaky at the waste section it destroys the yellow iu regularly. Among many, many other causes ... none of which are cheap to fix

aAandy
06-27-2015, 01:22 PM
i've not been to the machine as yet, though i will check for dev spillage & HV arcing, ITB cleaning unit & 2nd transfer roller

thanks for the tips gents

Custom Search