Charge Corona

[WATCHER]

Hi 👋

I want to know why some machines use charge corona assemblies and other use charge roller ? Even the different models of same brand use both?

[Brad6784]

Hi,

I was always led to believe that charge rollers emit less Ozone and thus don't require as many Ozone filter changes, if any at all. I would assume that makes them more environmentally friendly as well. Personally I preferred the Corona's in the higher volume devices, ever since Konica changed the C659/759 range of machines to charge rollers, I've had nothing but problems with them. The old C654e/754e machines, with the charge corona's were fantastic work horses and drums lasted well.

Charge rollers certainly have their place, the C224e/C258 machines have been pretty bullet proof and the drums have lasted well for me.

I hope this helps 😀

[copyman]

Agree about the ozone stuff and the 4 series drums with the sawtooth charger & grid are much better than drums with PCR.

Disagree that the C258, etc drums last just as long as 4 series. My experience with lower volume drums that have PCR is lucky to get a full life out of them.

[kingarthur]

Agree about the ozone stuff and the 4 series drums with the sawtooth charger & grid are much better than drums with PCR.

Disagree that the C258, etc drums last just as long as 4 series. My experience with lower volume drums that have PCR is lucky to get a full life out of them.

We have about 40 8 series devices out there, 12 of which have 1 or more drums over life, we have 1 device with all 4 drums over life, we haven't had any calls for quality issues at all, we even have them in architects, and they're usually the 1st to complain. /there's even one device with the yellow drum nearly 3 times life. Hopefully I've uploaded my list of 8 series drums over life



8 series drums over life .docx

[copyman]

You are one lucky man I actually have been rebuilding the 8 series drums and getting full yield out of them. Maybe Kon/Min changed them but early on I remember replacing a lot of OEM drums on lower volume with 50k & less.