Vertical white lines in bizhub 223

[danifuenca]

Develop with 20.000, new drum and blade. I don't know why do that

[Max]

Re: Vertical white lines in bizhub 223

Possibly dodgy drum.

[danifuenca]

Re: Vertical white lines in bizhub 223

Customer call me on Friday with this problem and changed drum and blade. Today call me again with the same problem

[copyman]

Re: Vertical white lines in bizhub 223

Since lines are perfectly even I would look at the print head (laser unit).

[guitar9199]

Re: Vertical white lines in bizhub 223

Just for funzies, check the drive gear on your developer unit. It almost looks like it stops turning for a moment.

[mo0651]

Re: Vertical white lines in bizhub 223

Dev unit. replace it.

[HELIO240]

Re: Vertical white lines in bizhub 223

Dev unit. replace it.

Hi do have pdf this?Make a scan of the problem and post here.
the problem occurs in print or copy ?
Do you have he instalation guide of this equipament?I you got it I advise you follow it ,reading pag 6 .Read adjust.

[copyman]

Re: Vertical white lines in bizhub 223

what direction is paper feeding? i was thinking dev unit skipping but doubt it because the way lines are perfectly even.

[danifuenca]

Re: Vertical white lines in bizhub 223

I changed the whole image unit and for now the problem has disappeared

[Shacklackey]

Re: Vertical white lines in bizhub 223

I changed the whole image unit and for now the problem has disappeared

If this is the case, the drive gear on the mag roller is broken or dev gap collars have flat spots on them

[allan]

Re: Vertical white lines in bizhub 223

Its arcing from the drum to the mag roller probably due to a scratch on the drum and a hole on the dev seal somewhere.

Cheap fix: replace seals and DS roll kit also cut the transfer roller spring by a turn or two. (seals part numbers in the B250 parts list)
The drum is probably messed up on the inner side. If you replace that sand of the sharp corners of the drum gear eliminating the shear points, other wise you will end up with plastic bits in the drive train sooner or later. Seen these drums turn just fine with almost no teeth left.

Otherwise replace DR411 and the dev tank and dev and repeat.

Surprised to see the responses to this problem. Normally gives a nice snake skin pattern, but the same thing.
Its very common on these machine. Even more common running 3de party toner and parts.

Hansoon makes cool looking DS rollers look at his profile pic.

[Hansoon]

Re: Vertical white lines in bizhub 223

I have one machine doing that occasionally. Most of the time first print in the morning, than whole day no problem. Did not yet find the reason since the customer is happy with it as it is without making further costs.

I have the feeling that its loosing its bias when doing that. The voids are a little "greyish" and appear to me somewhat "sandy"

So, if the door contacts are OK, it seems that Allan is right that there is some kind of arcing in the system.

Hans