Yellow Problem Witch MPC305SPF

[printertnc]

Buongiorno A Tutti
Ho un mio cliente che ha un problema anomalo con una RICOH MPC305SPF.

Aveva un problema sul giallo.
Se stampavo una foto a colori il giallo non veniva stampato sui bordi, e quindi i colori venivano tutti sballati.
Ho cambiato allora il toner e il tamburo del giallo.
Problema risolto.

Un mese fa' il cliente ci richiama con il solito problema, giallo mancante sui bordi.
Ricambiato tamburo e toner, e ha continuato a funzionare.

Adesso il problema si è ripresentato, non posso tutte le volte cambiare tamburo e toner.
La parte laser è ok, se effettuo registrazione colore da errore.
Cambiato anche nastro di trasferimento ma il problema persiste.
Adesso ho agitato il toner giallo e ha ripreso a funzionare, ma per quanto andra' avanti prima che si ripresenti il problema?
Qualcuno è in grado di aiutarmi?
Grazie


Goodmorning everyone

I have a customer who has an abnormal problem with a RICOH MPC305SPF.


He had a problem with the yellow.
If I printed a color photo the yellow was not printed on the edges, so the colors were all packed.
I then changed the toner and the yellow drum.
Problem solved.


A month ago the customer reminded us with the usual problem, yellow missing on the edges.
Replaced drum and toner, and continued to work.


Now the problem has reappeared, I can not change drum and toner every time.

The laser part is ok, if I record color by mistake.

Also changed transfer tape but the problem persists.

Now I have shaken the yellow toner and started working again, but how far will it go ahead before the problem reappears?

Can anyone help me?

Thank you

I attach problem20170701142833944.pdf

[slimslob]

Assuming that the paper is fed Short Edge First, SEF, I can see three possible causes.

1. The yellow developer has migrated away from one end of the development roller
2. The yellow laser shield glass is dirty
3. The yellow transfer roller is not making full contact at one end

Supponendo che la carta viene alimentata breve bordo prima, SEF, posso vedere tre possibili cause.

1. Lo sviluppatore giallo ha migrato da un'estremità del rullo di sviluppo.
2. Il vetro di scudo laser giallo è sporco.
3. Il rullo di trasferimento giallo non sta facendo il pieno contatto ad una estremità

[aktasson]

Did you after the replace reset the pm counter for the yellow pcdu and pull the yellow toner out and back again?
I would look to the toner supply (hopper) and check the sponge.
Also check and compare Vt SP3210 001-004 and and Vref SP230 001-004.
2017-07-01 17_30_38-Microsoft Word - RD117051b - RD117051b.pdf.jpg

[aktasson]

This RTB just for your information but does not quite concern your problem.
My read is that the yellow toner supply to the Development unit is blocked/reduced. Either it is the spong or the shutter of the hopper unit (toner hopper coil twists/breaks). I had to change one in the past. You almost have to take the whole unit apart. It is better then to bring the mpc into the workshop.

[Cipher]

Agoaktasson is correct.

The toner supply coils are made from cheap flexible plastic and can stretch and knot in the duct reducing the toner supply.

It's as much fun as a swift kick in the ball bags getting the toner supply hopper and sub-hoppers out onsite.
Give yourself plenty of time and room, your need it.

[copier tech]

Yes the toner hoppers were modified yellow has a known issue.

There was also a firmware released to fix this issue.