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Ink smears on prints

Discussion

9 replies
Posted by Harley Goldman on April 26, 2010 at 2:47 PM
I am getting some ink smears on prints off my Epson 4800. It is like some dark ink spots, especially along the edges. They are not major, but just enough to ruin a print. I am using Canson Platine, a 310 gsm roll paper (relatively thick).

Any suggestions? Max out the platten gap? Anything to clean?

Thanks
Posted by Michael E. Gordon on April 26, 2010 at 3:23 PM
I'd have to see a sample, Harley. Ink DROPS, or smears that look like printer head strikes along the paper edge? Head strikes are controlled by paper curl. If ink DROPS, you've got something else going on. Definitely increase the platen gap.
Posted by Harley Goldman on April 26, 2010 at 3:57 PM
Michael, they look more like smears that would be print head strikes. No drops.
Posted by Michael E. Gordon on April 26, 2010 at 4:42 PM
Check this out, Harley:
http://people.csail.mit.edu/ericchan/dp/Epson3800/faq.html#headstrike
Posted by Harley Goldman on April 26, 2010 at 5:09 PM
The smears are more in the middle of the print that at the edges. I doubt it is head strikes??
Posted by Aleksei Saunders on April 26, 2010 at 5:33 PM
Harley,

I get these occasionally with the 3800 - very occasionally, usually with something heavy in black. It isn't consistant enough for me to solve - I usually just do a deep cleaning (or whatever it is called), open the platten up a notch and increase the time between head passes.

Hope you solve it,
Alex
Posted by Floris van Breugel on April 26, 2010 at 5:44 PM
How curly is your paper? Can you try to decurl it a little?

Is this a new phenomenon? If so, has anything about the temp/humidity of your printing area / paper storage area changed?

I've had something similar before (though mostly near the edges) with a 4800 and minimizing paper curl and increasing platen gap usually did the trick.
Posted by Harley Goldman on April 26, 2010 at 6:03 PM
This is not a really new thing, but it seems a little worse lately. The paper has a very slight curl, but really not all that much. Although it is a baryta paper, it is a cotton rag that is coated. It is far, far less curly or rigid than something like Ilford Gold Fibre. It handles quite well, actually.

I will max out the platen gap and see if that helps.
Posted by Troup Nightingale on April 26, 2010 at 8:44 PM
Does this happen with other papers?
Posted by Harley Goldman on April 26, 2010 at 9:11 PM
I widened the platen gap and unchecked high speed. The first print came off clean. I am not sure which one worked or if it was a combo, but I saved those settings and will just use them in the future. If it works......

Troup, it happened some with other papers. I noticed it much more when I went to the stiffer baryta papers.

BTW, the Canson Platine is a beautiful paper. It reminds me a lot of Ilford Gold Silk, but far easier to deal with.