Aficio MP4002 Coy Quality

[luca72]

Re: Aficio MP4002 Coy Quality

Do you remeber MP4000 and faulty toner 6-7 years ago?
Ricoh have released new toner with "A" letter in the name to solve problem.
This is the same issue in my humble opinion.
Synthetic toner particles stick up onto developer particles and TD sensor mesurement is faulty.

At the moment in Poland we have few tens of cases with toner overfilling. Ricoh Poland tries to collect data from field and escalate problem.
Someone says that problem occurs only with toners bottled in France.

I seem to remember hearing something like that too, about the toner speech from France

[luca72]

Re: Aficio MP4002 Coy Quality

Anyone out there having any issues with overtoning on this series? I've got one with only 92,xxx clicks and the Vsp is .20 or so with background/overtoning symtoms, I just changed the developer and there was no difference, drum ground is good at 1.3 ohms, changing bias and charge roller voltage back and forth showed no dif. either. Any thoughts?

this series after 400-500k print, need to clean the internal laser box mirror, and poligon, it is not sealed as well as those of the later series, moreover, if it is not used a lot, the developer tends to give up a little before everything else, if the part its enough used, clean laser, id sensor, drum surface with rag and alcool, and charge roller, and run process control via sp
furthermore, I suggest you to clean the exposed part of the TD sensor, because it could be covered by some light film / dry toner crust, which isolates, and falsifies the reading, when you change the developer, it is always better to give a few taps with the screwdriver handle to the overturned developing group, to detach any crusts internally

[sandmanmac]

Re: Aficio MP4002 Coy Quality

I think it's time to let this 7 year old thread go back to it's grave, but first let me entirely disagree with andrewdecruz who resurrected it recently for some strange reason
The replacements are an entirely superior box when serviced properly, but I'm not sure what series he's actually referring to by '03's and 04's.

Those are colour machines and are again amazing too.

The replacement for the xx02 series are the xx54 & xx55 and while the fusers don't go 1/2 million pages, they run to PM almost without fail in my experience -which is WAY longer than 60k unless you're running sandpaper through them.

And now......back to the grave with this thread and those AWFUL MP4002/5002's