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I suspect that the method of storage of ink may affect the presence of bubbles in supply lines. Air is more soluble in cold liquid than at room temperature. If you refrigerate your ink, it will gradually dissolve more air, which will very likely come out very slowly in the form of bubbles...

The proprietor of R-JetTek is retiring, so they are going out of business on Wednesday. (I'm not sure if that's the last day or the day after the last day.) I just placed an order, and they shipped it minutes later. They're also offering a 70% discount. If you use their ink, this would be an...

Hi, guys. Good to see you are still here. Some of you will remember that I used to post here some years ago. I am in need of ink, and my usual supply seems to have dried up. My most immediate need is pigment black, since I'm completely out of it, but I'll also need other colors. I have a HP...

This is interesting. I just acquired a new HP564K XL cartridge that expired in January 2015. That's a pigment black, sponge and ink chamber type cartridge, similar to Canon cartridges. It's for an HP Photosmart C309a. It's apparently a new, genuine HP cartridge. I tried to drain it using...

:celebrateAardenburg is back big-time, testing some of your favorite ink in your favorite printers. And they still need support to complete the work. http://www.aardenburg-imaging.com/portfolio/inks-and-media-testing-2017/ http://www.aardenburg-imaging.com/ :weee

Vincent Van Gogh has a fading problem. http://www.sciencedaily.com/releases/2015/03/150310123544.htm http://www.cbsnews.com/news/mystery-behind-fading-van-goghs-solved/ http://www.pri.org/stories/2015-03-09/why-are-van-goghs-paintings-slowly-turning-white

I'm not exactly a heavy-duty printer. My Pro 9000 has been unplugged for a year. I turned it on and printed a perfect nozzle check. The ink levels still read full! A magnificent printer, I would say.

Is this normal? HP Photosmart Premium C309a all-in-one, page count 4400. The area around the park pad is pretty dirty, with a lot of ink. Other areas inside the printer also have a thin film. There was even a thin film on the duplex unit at the back of the printer. The head positioning...

My HP C309a is suddenly giving error 0x61011be6 when printing CDs. HP is not telling what that means, but the printer is also starting to make horrible clunks and gear-grinding noises sometimes. It's printed about 4500 pages total, of which up to 300 were "other media", presumably CDs. Any...

This is the most amazing tale of rapid fading I can imagine. I wish I had scans, so you could see exactly what I am talking about. I also wanted to run some tests, but I'll probably never get around to it. Oh, well, I've been sitting on this story long enough. In Sept. 2011 I transferred an...

Websnail was interested in my previous remarks on flocculation, and asked me what else I knew about it. He mentioned that he may have experienced a problem due to flocculation. Flocculation is an aggregation of particles that affects colloids. Pigment ink is a colloidal suspension...

'cause they're going real cheap now. Really cheap. Is there any major problem with them for occasional use? Do they come with real ink cartridges, or funny little half-empty sponges? And if the occasion arises, what is required to use the U.S. version for printing CD's? I see one can buy...

Oh, so this is why this cartridge is starving the printer. This is an HP564XL yellow cartridge, which is opaque, so I had to radiograph it to figure out what was going on. After 57 pages printed (including a few tests, I think) his one developed terrible streaking that persisted after a level...

I found this an HP 564 refill kit review. No other information, not even the printer model. Does anyone know what this is about? "To reset the chip, click on the tool icon (top right corner), then Preferences and scroll down to Cartridge Chip Info. Follow the instructions on screen. Piece of...

The original Canon patents refer to a possible problem with air in the sponge after refilling, which can limit ink flow. There are numerous references to this and similar problems with Canon printers in this forum and elsewhere. Nevertheless, many people report considerable, repeated success...

There's no way to reset the cartridges on my HP C309a, so the printer cannot monitor ink after refilling. Fortunately, there are now some very inexpensive, precision balances (aka "scales") on the market, which make it it easy to check ink levels periodically by weighing the cartridges. It...

I thought this was a cartridge problem, but it occurs with two cartridges. The printer starves for magenta in big, solid areas, but is OK for more ordinary prints. Usually then it's not long before magenta conks out completely. A cleaning cycle restores it. It's almost as if only a cleaning...

I want to test ink by actually running it through the printer. It all sounded very simple until I was almost ready to print. It's a simple matter to flush and refill a cartridge. But how to flush the printer? How do I know which ink is actually getting to the medium? I have no idea how long...

I just found this. I don't know anything about it, but the idea is clever. Windows XP, I guess. http://www.inkmon.org/ Oh, here are some more programs...

You all print on paper, right? Here's my test on HP multipurpose paper. I diluted the ink 10x with distilled water (5x for yellow) and spread 0.1 mL on paper with a glass slide. The coverage is not quite even because I attempted to make coverage lighter toward the bottom. I cut the pages...