MPC 2003: new toner bottle, but half filled (?)

[AjitN]

Re: MPC 2003: new toner bottle, but half filled (?)

hello, at the beginning I thought it was the bottle with little toner the problem, because the yellow printed very well, but in the end it was the pcdu that some strange reason drank all the toner, in fact I noticed that the rear air filters were strangely much and only yellow ... however resolved, this is a problem that has cost a lot to the company, the mc are rented, and we buy and supply the toner ... which as you know has stratospheric prices

I think it would be a better idea if you try to salvage old pcdu.
Try replacing onlu PCU or even charge roll either from old PCDU or new one. Mostly excessive charge on drum which will attract more toner from developer unit but since charge on belt (charge roller within the belt ) is same, more toner remains on drum even after toner transfer on belt. That's why you get normal print quality on output and excessive toner gets pulled from bottle & goes in to waste.
If it works well you may use this PCDU where color usage is less & black is more.
Hope this helps.

[luca72]

Re: MPC 2003: new toner bottle, but half filled (?)

I think it would be a better idea if you try to salvage old pcdu.
Try replacing onlu PCU or even charge roll either from old PCDU or new one. Mostly excessive charge on drum which will attract more toner from developer unit but since charge on belt (charge roller within the belt ) is same, more toner remains on drum even after toner transfer on belt. That's why you get normal print quality on output and excessive toner gets pulled from bottle & goes in to waste.
If it works well you may use this PCDU where color usage is less & black is more.
Hope this helps.

the pcu and his dev.unit have perhaps exceeded twice their life, I share your logic, and I would like to add that I think it can be tied to thinning the photoconductive layer that having less thickness undergoes greater charge, or even to the speech of the first versions (this) on which were mounted the odious bearings rather than the bushings, I also read here somewhere that there is a charge roller complete of frame "updated", however the pcu we pay around 100 euros, but I'm not sure why not me I deal with ordering material from suppliers, so I do not know if it is worth putting them there to fix an old pcu