I have some unopened octenol cartridges from last year, are they still good? what is the unopened shelf life?
1708987
If they in the SEALED package they should be good for at least a year. I have used last years leftovers with good results.
1708988
Unopened shell life unknown. But I would think as long as it stays sealed it would be fine to use as long as needed. One opened is supposed to last 100 hours. I am using last years now.......
1708989
Just doing some simple math here. One of these lasts for about 3 months in use (1/4 of a year). This means that you would use about 4 in a year (Less if you experience winter). They sell these in 6 packs, and they are only good for a year unopened. Doesn't this mean you're throwing 2 or more of these away every year? Scratching my head over here.
2073986
No; set of four cartridges sealed in plastic bag. Ask manufacturer about shelf-life
1828259
I've had mine over a year... no problems. Each cartridge is packed in a sealed plastic "bag" that it seems to me would greatly increase shelf life and prevent drying out... but they are also not "open" until you insert them into the machine so I suspect the shelf life is fairly long.
1447742
There is no expiration date because the cartridges are vacuum sealed and aren't exposed to the atmosphere until you unseal the package.
581663
Wish I could help; I used the Cartridges right after I received them and did not notice the Expiration Date, except that the ink was fresh.
1956290
Karen, I'm sorry I can't give you an exact date because I have thrown away the boxes since I installed my cartridges. I can tell you that I'm almost sure that you are good for at least a year.
2271685
I've changed printers so I don't use that cartridge any more. I had one problem with a vendor that sold me two already expired cartridges, but he credited me. I haven't had any problems with other vendors. That particular vendor has excellent ratings, so I would trust him/her. The great thing is that if you're not happy with a purchase, Amazon.com will make it right!
1828260
I've definitely had them over three months (in the packaging), and have had no trouble when I've popped a new cartridge in the printer. Quality is good, longevity is good... So far, no problems! When leaving cartridges in the printer for a long period of time, I find that the heads need cleaning because they dry out. Even though this uses up ink, the quality afterward is good. I just do a test print when the quality is funky, to identify the trouble cartridge, and then I clean the heads.
1378130
As far as I can tell, I got these 25 May 2013. I posted my review 27 June 2013, and if memory serves, I installed two of the color cartridges not long before that, so at the time of installation I had probably had them about a month. I have no complaints. I would assume since they sell quite a few in a package, they don't expect them to dry up very quickly, and I believe I saw that they come with a 1-year guarantee. Hope this helps.
2055136
You should see a date on the carton for the cartridge. As long as you do not break the seal on the package it should stay good.
1407265
Mine are always new sealed cartridges and work and last about the same as the ones I buy at the store.
2058202
See the following link pertinent to HP products: http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01764161&cc;=us&dlc;=en&lc;=enShort answer would be some expire and are unusable, but some can be ignored. This table will help you determine which cartridges are in which category.
1160014
the expiration dates on these cartridges is 15/03/23. I have had some from the same seller that were dated 13/09/23 and utilized those without any problems as far as quality or performance. I hope this helps.
1438139
They seem to last a long time. I use mine in the shower, so I usually clean iTunes running water, then just put it in the cradle for the dry cycle. Occasionally I run it through the cleaning cycle, and the cartridges are lasting about 4-5 months each.
402020
I have bought this a few times and to the best of my knowledge, they have always been new cartridges. I spent a few more dollars on this to get a new one, as I've had bad experiences with re-manufactured ones. If they are re-manufactured, they should not be using this packaging - which is the original, new cartridge.
1825042
It does not have an expiration date. The cartridges are good for as long as they remain sealed and unopened. The ink works fine in the printer after opening the package and removing the seal.
1828264
I've definitely had them over three months (in the packaging), and have had no trouble when I've popped a new cartridge in the printer. Quality is good, longevity is good... So far, no problems!When leaving cartridges in the printer for a long period of time, I find that the heads need cleaning because they dry out. Even though this uses up ink, the quality afterward is good. I just do a test print when the quality is funky, to identify the trouble cartridge, and then I clean the heads.