MPC 4000,5000,2800,3300 lines.

[MrRicoh]

Hi About this for me escalating problem with white lines.. is it only here in Sweden we have this problem ?
New machines only 5000-15000 copies starts produce white lines in the developerbox.. Ive seen both lubbar bits and compact tonerpieces in in and the only way is to change devunit ore vaccumclean it and replace the developer... On Tessasupport there is no inteligent word about it (as always)..just to replace developer ore rotate the devroller counterclockwise (yeah it works 2 copies) at most...
Does anybody have a better solution ore has heard about some (secret bulletin) about this problem ??
Thanks...

[jonezy999]

Good post. We are seeing the same problem in Australia.

[turbojetboy]

Good post. We are seeing the same problem in Australia.

Yes i second that, the drums are good but the devs get deletions way too soon. We are now changing the entire dev unit every time we replace the drum as it seems that the moment you move these modules deletions will soon follow. Just have a look at all the packaging these devs come in - it is quite obvious they know there is a problem here - but as with all of these known issues they will bury their heads in the sand and ramble on that "we havent seen that" or "update the firmware" or some other similar rubbish.

[teebee1234]

Just a poll, what are the environments like that these devices are located in (humidity, temp). I've run across this once recently, but the humidity and temp seemed to be ok (15%rh, 71 deg. f)

[verderacer]

We have the problem here in AZ...

[zyqwiz]

We've had it on a MPC2800 in England too - there were what look like tiny pieces of sponge caught in the doctor blade - I think it's contamination in manufacturing.

[tcs04]

With regard to the "rubber" in the dev unit, it seems there is a foam rubber seal within the toner bottle neck which can break up and feed with the toner into the dev unit. This sticks behind the doctor blade and causes the white lines. This can also block the supply pipe causing toner end errors.

[E Winter]

I think we had around 10-15 DV units with this issues as well, most of the the trouble occured shortly after the installation. The bulletin is indeed a bad joke and cleaning the DV unit/replacing developer didn't always helped even if I took the time to vac it properly. Since then I'm always swapping the complete DV box and send the broken one back through the warranty channels.

i think the last time we had this issues is some month ago so I guess ricoh did something within the production process. All in all I don't like the newer MPC PCU's because it's not that easy possible to access and clean the charge roller (and unfortunately the old PCUs are equipped with the new-style charge roller as well).

[Boogi11]

Re: MPC 4000,5000,2800,3300 lines.

Hi everybody. I am a new member from today and I recognize this problem whith the dev. units. I had a few ricoh maskins with the same problem and I orderd new Dev.units and then returnd the old ones on warrnaty and ricoh refunded the money every time.

[rthonpm]

Re: MPC 4000,5000,2800,3300 lines.

I've had some success with rotating the dev units backwards by hand to clear out the obstructions, especially on low click count machines. There's no telling as to whether the problem will return yet though as I've just started to really see a bunch of these models as leases expire.

[brodera]

Re: MPC 4000,5000,2800,3300 lines.

We got the same prob in Swe to. To solve this problem is to change the Dev unit. but if you dont have any dev units to change with, try to poor out the dev on a pice of A3 paper and do the Cocain Method with a creditcard . the dev can have lumbs in it so chop those!


//Best Regards

[Max]

Re: MPC 4000,5000,2800,3300 lines.

There is a very simple fix for it. Remove the plastic seal of the front of dev unit. Ull need a stanley knife to cut it at the bottom. Lossen 2 screws that hold the gap blade, 1 turn should do it. Do not take them out as it is a pain to put them back in. Rotate the mag roller so there is no dev on it. Get a feeler gauge and adjust the gap to 0.45 - 0.55mm on each side. Rotate the mag roller and ull see all the blobs on it. (Just leave them there) If u still getting lines go to 0.6 mm. Put the seal back on and sellotape where the original seal was. I use 2 strips of sellotape. Must do ACC afrerwads. Been doing it for the past year only 1 came back cos the seal had a hole. Hope that helps.

[withnail]

Re: MPC 4000,5000,2800,3300 lines.

I've found hard toner is to blame for this. Usually when changing the pcu the vibration of seperating the units causing the toner to float around and produce the fault.