km 2550ci marks

[stevee104]

Has anyone seen these marks on the copies and prints, has a both new maintenance kits installed but was doing it before it was installed.
The machine has 218,211 pages on it.It also does it on color prints and copies too but they are black only also.All adjustments in maintenance
mode and still no change samples are attached.

[subaro]

Re: km 2550ci marks

Seems to me like there is a high voltage problem. remove and reconnect the high voltage connectors and maybe replace hv pwb.

[blackcat4866]

Re: km 2550ci marks

I agree that it's probably primary charge arcing, but not sure what it's arcing to. And I personally would not suspect the HVT. Look at the primary charge unit/grid, charge contacts, drum, and/or developing unit for arcing. =^..^=

[subaro]

Re: km 2550ci marks

I agree that it's probably primary charge arcing, but not sure what it's arcing to. And I personally would not suspect the HVT. Look at the primary charge unit/grid, charge contacts, drum, and/or developing unit for arcing. =^..^=

Yeh, i thought along your lines blackcat, but my reasoning was, he was having the problem before, then replaced the pm kit. It should have been obvious to him to check the contacts, hence going directly to hv pwd. I have seen hv pwb cause those similar problems, but not is a very long while. I think the power supplies of today are made much better with the soldering. the power supplies of old use to have cold solder or weak joints and therefore leaks.

[tmaged]

Re: km 2550ci marks

It sure looks like the image on the developer leak side of this bulletin. Maybe you had an old maint kit sitting around ?

[subaro]

Re: km 2550ci marks

It sure looks like the image on the developer leak side of this bulletin. Maybe you had an old maint kit sitting around ?

This sounds reasonably with the bulletin. but this does not look like smudging, but more of intermittent void. smudging will more kinda pull the toner and the egdes will be smeared a bit. still thinking something to do with high voltage. just my own stubbon thought.
Good find there tmaged.

But what's the coincidence that the old and new drum/dev has this issue in that bulletin.

[tmaged]

Re: km 2550ci marks

This sounds reasonably with the bulletin. but this does not look like smudging, but more of intermittent void. smudging will more kinda pull the toner and the egdes will be smeared a bit. still thinking something to do with high voltage. just my own subbon thought.
Good find there tmaged.

You have to look at side A on the bulletin. There are two different image formation problems on this bulletin. I missed it when I first read it. The developer leak looks more like digitized boxes. We've had this on a few machines, as well as the toner dropping in side B. There was also a firmware update for the toner drops.

[Kyo fan]

Re: km 2550ci marks

I've seen this, and the new developer unit solved it in my case.

[subaro]

Re: km 2550ci marks

It sure looks like the image on the developer leak side of this bulletin. Maybe you had an old maint kit sitting around ?

So what is this guy to do now. Most likely as tmaged said he had a old kit that did not have the new fix and now what, has to install another kit. Who's paying for that. Guess he has to eat that cost. These are the kind of situations that eats into a small dealer profits and makes this biz budgeting out of wack.

He has to now check the serial numbers on the bulletin and compare with his dev/drum units.

[stevee104]

Re: km 2550ci marks

Thanks guys i do have a old black dv that came out of a different machine and was working fine i will take it by there and see if that is the issue
or least eliminate it that from the list.

[stevee104]

Re: km 2550ci marks

Sorry it took so long o get back but for the record another new DV unit took care of the problem, thanks for all the help.