jdedmonds wrote:
Anybody have a proposed explanation why the posts in this thread cover the entire spectrum from all good to all bad?
Because you also see failed printers that used manufacturers inks, I have five possible explanations:
1) bad batch of ink(s) caused by manufacturing problem - all manufacturers (including OEM) periodically have production issues
2) bad printer hardware that failed - all manufacturers periodically have production issues
3) users who fail to follow the proper procedures when using inks - how many times have we seen people not willing to follow directions because "it should work like that"
4) environmental changes - high heat often causes gelling of inks while large swings in temperature and/or humidity can cause failures by drying the cartridges
5) printers that have stood unused for long periods of time
All printer manufacturers have a list of optimal environmental conditions as well as recommended environmental limits.
Certainly, there can be bad formulations of inks that are not compliant with manufacturer's specifications. Those companies are out for a quick buck and have no problem misrepresenting their products. Established companies however want to be around tomorrow and will supply high quality products.
Sometimes just the lack of printer usage will cause inks to gel near the printhead and render it unusable. I certainly won't argue with the folks who blame their printer failures on the 3rd party ink. At the same time, I wouldn't blame an OEM ink for a failure either unless (in either case) the problem was properly diagnosed. The 2 companies I use have been in business for years and their success rate is as good as the manufacture's. One of them identified through continuous compliance testing that the Canon yellow inks could cause gelling of the ink if the cartridge is not completely cleared of the manufacturers ink before refilling with their ink. As a result they now will supply clean replacement yellow cartridges to prevent any issues. A few users had experienced the problem but most never saw the issue in their own printers.
I have also heard people accuse manufacturers of causing a printer failure after the printer driver recognizes non OEM cartridges have been used. I think that is a dubious claim but from a software perspective, it could be done.
Unless I can prove it was the ink that caused the printer to fail, I will stick with the result I get. Perfect quality match and longevity of my prints will continue to support my decision to use 3rd party inks in my Canon PIXMA PRO-100.
Just my 2 cents worth - your results may vary ...