Toner cartridge reset magicolor 1600W

I recently owned a Minolta QMS magicolor 2300W and was able to refill the toner cartridges and reset them so the printer would continue to use them (saves money and is environmentally friendly). Unfortunately, the optical sensor inside the unit that detects the cartridge switch from empty to full has failed.

I replaced this with a magicolor 1600W. But now, I cannot figure out how to reset the cartridges. Any help would be appreciated. Even how to do this on similar models might be helpful.
Thanks,
David

 

I believe these use a three-contact chip which needs to be replaced with a new one. I am not endorsing this site in any way; I haven't heard of them before and have never purchased from them, but this is the kind of thing you're looking for:

http://theimageone.en.alibaba.com/product/383101507-210816655/Quality_MC_1600W_Reset_Chip.html

They are specific to the color of cartridge, and there is likely a high capacity and normal capacity chip.

 

ryan,
I believe you're right about the chips, and it is annoying since this makes it very difficult to refill the cartridges. I've seen some of these "import" chip sites and am leery of them as well. Thanks for the feedback.
David