Sharp AR-M355 DV Issue

[Tech2002]

Stopped by a client today and found that the system was not printing Magenta at all. Saw that it was coming close to DV Change - Changed Magenta - Set up SIMMS 25 - all seeming to go good.

Made a Copy and the entire page was coated in Magenta.

It may seem obvious and maybe I'm thinking too hard on this, and anyone would probably think that the Magenta DV was bad. That is my natural inclination, too. But the Developer wasn't working before the change and now this. I'm not so sure.

The other thing is that Developer for this system is about $370.00 for the set of -3Developers, I got to thinking that it might actually be the Magenta DV Unit itself, which costs about $200.00 with overnight shipping from Sharp. So if I changeout the Developer and it ends up being the DV Unit - I've just spent alot of money.

Has anyone seen Developer go like this in this way where it makes a solid page of one color?

Any suggestions would be greatly appreciated.

Thanks.

[OMD-227]

Firstly, you have listed the wrong machine.

I'm guessing you have an MX machine, not an AR-M machine.

If the entire page is coated in one colour, firstly check your trouble codes. You will probably find at least one F2 code there. The problem is not with your developer. The problem is a leak between the rear frame and the process unit electrode.
I have had this problem a few times now, and you need to do a few things for the repair to be successful.
Firstly, change the drum unit (whole unit). If the problem is still there, you need to replace the new version of the process electrode case and cover.
They are an absolute sh*t of a position to get to. You need to remove the entire main drive unit, all drums, devs, primary belt and HV board. You will find the process electrode case & cover right in front of you. Dont take short-cuts.... you must remove everything mentioned to remove it properly.
depending on your MX model, there are new Mod part numbers.
Either check it out on your sharp bulletins or PM me for the correct new parts.
Again... dont waste your time with the devs. It is a charging issue between the drum unit, process electrode & cover and the rear frame of the machine.

if your machine is not an MX, forget what I just said.

[Tech2002]

Your right about it being an MX-Series - MX-3501N. Snafu when I entered Title - Sorry.

But I will take your advise - Drum First, then if that doesn't work I'll go next step. Thanks.

[Tech2002]

wazza -

I replaced and changed out the Drum blade & Main Charge. I did this because the Drum was worn about a quarter inch at the back end of the Drum itself - towards the back of the unit.

There was leakage from the Drum at this point but I didn't think much of it. Changing the Drum Unit isn't an issue but I can see that the spillage may be causing my issue.

You're saying that I need to pull everything apart in order to clean this out?

And if you have the Mod's and #'s I probably should take those just in case.

Thanks as always.

[OMD-227]

No mate, I am only saying that you need to pull everything apart to change the new Mod parts for the process cathode & covers. If you are only changing the drum because of edge wear, then you are OK. If the new drum fixes the problem of full coverage, thats all you need to do. My original post said you only need to pull it apart if the drum didnt fix your problem.

Good luck brother!

[OMD-227]

The New Modified process electrode case & covers part numbers for 100% coverage of single color FIX:

PCASZ0312FCZ1 - process electrode case
PFTAP0149FCZ1 - process electrode cover

Suitable for MX2300N through to MX5001N series (not C-dragon or Venus series).

Mod parts already standard in machine builds from November 2008.


** This is only for 100% coverage of single color if new drum unit does not bring machine back to normal working order **

[Tech2002]

wazza - thanks again!

[Tech2002]

Got to the account and everything was almost good. Didn't have to do too much at this point.

But copy quality wasn't good. Ended up changing out Drum Unit as suggested. Had fading in one of the colors. There was leakage coming from the Magenta Drum itself that caused my issue in the first place. The Copy Quality issue turned out to be cleaning the Laser Lens. The Toner/Dev had spilled in the back of the machine and coated part of the Optics.

I appreciate the info - always learning something that if I don't use I can tuck in the back of my mind.

Be Well!!!

[OMD-227]

Sweet Brother!!

Lucky you didnt need to change the process electrode & covers. Its a b*itch of a job. Can do it blind-folded now as i've done it a few times.

[blackcat4866]

I can imagine that electrode dealie is not much fun. I've only had the drive unit out of a couple of the C-Jupiters and it's a half day job. =^..^=