HP explains why printer ink is so expensive
blogs.computerworld.com
blogs.computerworld.com
Apparently for "quality reasons" a smart chip in the ink made the printer refuse to use it after an arbitrary expiration date set at the factory. It was only 6 months.
I don't even mind being robbed of the $180. The surprise downtime, however, landed the printer in the dumpster and a Xerox laser took its place.
Edit: I actually tore the scanner portion of the device open and harvested the 2 12-volt cold cathode lights in their beautiful extruded aluminum holders from the scanner bed before chucking it. I mounted them under the desk just over my keyboard drawer to light my keyboard and serve as a warning to other printers that might get any ideas about mishandling their ink...
In fact, I never managed to actually get it to show any signs of low toner. I just got sick of taking the cartridge out and putting it back in to reset the "out of ink" setting.
Crooks!
I'm sure the low ink warning is justified somewhere on the grounds of ensuring consistent quality, but as long as the prints come out good enough, print away.
a) When the cartridge has no toner, there is still a 'buffer' of toner that is in the developer roller that transfers the toner to the drum.
Now, it will last for quite a few copies, until it becomes completely depleted, and then developer itself starts transfering to the drum; Best case it causes premature wear, worst case it does serious damage and you end up with a costly repair bill.
b) When a laser detects low toner density, it ups the voltage bias to compensate, this too is bad for the drum, but more importantly, when you finally add that new toner cartridge, the printer will be suddenly 'overtoned' and has to get rid of the excess toner from the developer roll somehow. The way it does this is to print black copies (which get cleaned off the drum, straight into the waste toner container).
I'm not saying don't use the toner cartridge until it's completely empty, since sometimes the sensors do misdetect the toner level and report it empty when there is a small amount left - just don't over do it.
When people say "recycle to save the trees" they have redwoods pictured in their minds, they should probably be thinking more along the lines of the stuff you clear away to have an earth-day sing and a tree planting.
A bit of googling gets me this:
http://oregonwild.blogspot.com/2007/12/tree-farm-color.html
That's what they look like.
Not a statistician. But it seems that if half the participants were unhappy with the bargain ink (and in such a small sample, no less), people were just as likely to like the bargain ink better? In which case, given that these were likely joe schmoes off the street (instead of, say, doing a highly technical analysis of the quality and durability of the final print - the other study only says the cartridges last longer), the study was essentially meaningless, and they're adding spin?
On my Brother color laser, output quality has been highly dependent on toner quality. The one time I tried to use el cheapo toner, the results weren't simply "less good" but so bad as to be unusable.
Statistically, of course, my two anecdotes do not constitute data. But it may be so some interest.
(And as another poster said, Brother can be outsmarted with the "tape on the toner cartridge" trick)
Started off by buying one of those refill kits....but then after one of those exploded...I just get prefilled ones.
If you go on ebay you can get a pack of 10 for like 10-15 bucks. Is the quality worse? I don't know, looks the same to me, doesn't run...maybe it dries out faster. I mean it's just ink, who cares really?
And if the crappy ink ends up clogging up the printer faster, so what, printers are the cheap part...it's the ink that's expensive.
The opinion of a focus group on what something costs is meaningless. It's not hard to measure the cost-per-page and determine whether Kodak printers cost less to operate than HP.
Caveat - We don't archive the output (it may be fine, but ..).
Edit: thanks, handy to know.