Taskalpha 520 (NEC5200) background lines

[pbbsinc]

We just installed 2 of these, & one has background lines on runs over 20 copies or so. The other machine (same office) runs fine. Both have around 25K on them. We've swapped out drum & dev units with no change.

The lines look like what I'm used to seeing on ricohs when there is buildup on the mag roller. Will update firmware next, but look forward to any suggestions anyone may have.

Thanks in advance...jay

[blackcat4866]

Got a scan? =^..^=

[pbbsinc]

not the best scan, but:

HWC bckgnd lines.pdf

[aabarnes1]

Transfer

[randula7]

(runs over 20 copies) did you check fuser is it good?

[blackcat4866]

Transfer

I gotta agree with aabarnes. Especially if the streaks extend through the voids. The scan cuts new voids, so we wouldn't be able to tell that. =^..^=

[kingpd@businessprints.net]

not to be redundant but agree with transfer first. they're new? if they are make sure you get warranty reimb. credit.

i'll double check just to make sure there wasn't a bulletin.

[bsm2]

when you change drums did you also change main charge? looks like dirty main charger grid
transfer is easy to check just swap with the other machine.

[pbbsinc]

Thanks for all the replies! This site never ceases to amaze me. We did swap the main charge with the drum. I'm meeting the tech there later & well swap transfer with the other machine. I'll do the same wit the fuser if necessary. Machines are brand new.

I'll let you know what we find. Thanks again!

[pbbsinc]

Went out there & met my tech & did all mentioned above & ended up finding that the replacement drum unit (brand new w <3k prints on it) is bad as well, much worse than the other one.

The beauty of it is that the tech that I left there to do firmware updates just called me & said that, after the update, every print or copy coming out of the machine is solid black.

So now the original problem is the least of our worries.

[kingpd@businessprints.net]

Went out there & met my tech & did all mentioned above & ended up finding that the replacement drum unit (brand new w <3k prints on it) is bad as well, much worse than the other one.

The beauty of it is that the tech that I left there to do firmware updates just called me & said that, after the update, every print or copy coming out of the machine is solid black.

So now the original problem is the least of our worries.

SEND THEM BACK! Seriously, they were bought new and neither you or your tech should be dealing with these lemons and wasting your time.

Even if you fix all the problems, there's probably something else that will get messed up, most likely after the warranty period.

[blackcat4866]

Usually when you get a solid black print it is a primary charge issue. My bet is that the primary charge unit is not seated properly. =^..^=

[kingpd@businessprints.net]

Usually when you get a solid black print it is a primary charge issue. My bet is that the primary charge unit is not seated properly. =^..^=

I still stand by my previous advice. My greatest concern would be why are they so messed up and two of them.

Did some jack*ss build them at the factory or were they slammed a few times in the transportation process and caused things to shift? Too many horrible what if questions.

Last year I had to buy a new $10k furnace for the house and when we unpacked it, it was very clear that the one corner had been smashed in or dropped of the truck or forklift. Neither the delivery crew or anyone at the factory cared to notice or mention anything.

I told the guys to go home b/c not a thing was being done until a new unit was sent. Not worth it, too many other things that could get screwed up even at a later date. I know accidents happen but someone should have been fired b/c it was clear that they kept it hush hush.

[pbbsinc]

You are absolutely right, BlackCat, the chg was arcing. I just cant figure out why it happened right when he did a firmware update.

In any case, he scraped the oxidation off of the wire with a springhook & the aforementioned lines went away. I cant beleive a corona in a machine thats supposed to get half a million prints between PMs crapped out at 59K & then again at 63K (a day & a half later).

Hope it's a fluke, I've placed a couple of others & there at 100K with no calls or jams. Or maybe Kingpd is right & it'll happen again. If so, I'll probably take him up on his advice.

Thanks to all you guys for your help.

[blackcat4866]

I keep a main charge unit in carstock. Many machines make the full PM cycle, but perhaps 1/2 will need a primary charge early.

I've tried to restring these primary units. Perhaps (1) in (3) is usable after restringing. I don't waste my time anymore, unless the part is out of stock. =^..^=