Luminous Landscape Forum
Raw & Post Processing, Printing => Printing: Printers, Papers and Inks => Topic started by: HowardG on April 13, 2009, 09:51:07 am
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I just recently received my Epson 7900 and am having difficulty with black and white printing on various non-Epson fine art media. Thus far I have tried Ilford Gold Fiber, Hahn. FA Baryta, and Harmon Gloss Al Baryta. I was not expecting this, as I had printed on the Ilford and Hahn papers in color without any apparent problem using the recommended media type for the icc profiles and without making any changes to the paper thickness or platen gap controls. But when I am printing in black and white I can see, in areas of pure black, what appears to be ‘scuffing’ when held under a light. They appear to be linear and at times somewhat evenly spaced, though they are difficult to see if the image isn’t held at a steep angle under light. In addition, I seem to get somewhat random irregular whitish areas that are quite tiny in the black areas…..sort of look like there might have been dust there but they tend to be in the same area of the image on new sheets of paper. I thought I was perhaps looking too hard, but I don’t see the scuffs or linear ‘scratches’ (I hesitate to call it banding as I don’t think that is what it is) when I print the same image on Epson Luster paper. On Luster, the black is pure with only a rare ‘dot’ that could well have been from dust.
The thing is, I have tried opening the platen gap to wide or wider and tried, in conjunction with this, to set the paper thickness in the driver to as high as 5. I have tried dusting off the paper with a soft brush, though I don’t see any scratches or dust on it prior to printing. While there has been a bit of improvement, the problem is basically still there. First I thought I was being too picky, but I don’t see the same problem on Epson Luster.
I would appreciate any help or insight as this is extremely frustrating with a brand new printer and I am not sure if it is the printer, the media, the settings or me being too picky. I would really like to have the option of printing on any of these media. Though I have only been attempting black and white for a day, I am quickly going through expensive paper and ink trying to work this issue out. Any help or insight would be appreciated!
Howard
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Howard,
Not being familiar with the paper feed on the 7900, I am not sure this will help. I was encountering light scratching on Hahnemuhle's PhotoRag Baryta when using sheets fed from the paper tray on my 4800. The little pizza wheel mechanism that comes down partly into the print was creating small scratches as it touched the surface of the paper. Going to manual feed solved this issue, and increasing the drying time when using the tray helped some, just not entirely.
I know the 7900 doesn't have a tray, but are there alternate feed options? Do the sheets go straight through or are they bent around the mechanisms inside the printer?
The other thing I would try is playing with the drying time between passes if it is some internal wheel assembly causing the scratches.
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Howard,
Not being familiar with the paper feed on the 7900, I am not sure this will help. I was encountering light scratching on Hahnemuhle's PhotoRag Baryta when using sheets fed from the paper tray on my 4800. The little pizza wheel mechanism that comes down partly into the print was creating small scratches as it touched the surface of the paper. Going to manual feed solved this issue, and increasing the drying time when using the tray helped some, just not entirely.
I know the 7900 doesn't have a tray, but are there alternate feed options? Do the sheets go straight through or are they bent around the mechanisms inside the printer?
The other thing I would try is playing with the drying time between passes if it is some internal wheel assembly causing the scratches.
Good idea about the drying time Mark and I will give that a try for sure. The paper does feed right through with no bending at all and is held in place with suction. I am using the loading mechanism that the manual says is less likely to cause scratches.
Howard
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HowardG,
The scratches are appearing in your B&W prints where the ink is producing a solid black because that's where the paper is warping the most from all the ink that is hitting it in those areas (less likely in color). The surface layer is trying to stretch and the back of the paper is holding against that, forcing the paper to curl upwards. That can be a considerable force. Some vacuum pumps are not strong enough to resist that. So, the paper is scraping on something after the ink hits it leaving very straight lines in the direction of travel. If I read your post correctly, then that's what is happening.
Are you using sheets or rolls?
Aloha,
Aaron
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HowardG,
The scratches are appearing in your B&W prints where the ink is producing a solid black because that's where the paper is warping the most from all the ink that is hitting it in those areas (less likely in color). The surface layer is trying to stretch and the back of the paper is holding against that, forcing the paper to curl upwards. That can be a considerable force. Some vacuum pumps are not strong enough to resist that. So, the paper is scraping on something after the ink hits it leaving very straight lines in the direction of travel. If I read your post correctly, then that's what is happening.
Are you using sheets or rolls?
Aloha,
Aaron
Hi Aaron.....I am currently experimenting with cut sheets until I settle on a paper or two or three. Last night I tried experimenting with opening the platen gap to wider and setting the thickness to 5 or 6 and the effect I was concerned about seemed to be significantly less. In fact, it seemed most noticeable (and far less than it had been) on the Ilford paper and essentially gone (well, to the point that it was really hard to see if it was there) on the Harmon. I also did not see it printing on Exhibition Fiber for the first time. I had also taken a bulb blower and just shot some air on the sheets to remove anything that might be causing scratches. For black and white I like the Harman and Exhibition Fiber better than the Ilford personally.
For color I do like the Ilford, but, interestingly enough, don't see the scuffing effect on color even when using a thickness of 3 and platen gap to normal (though the image wsn't heavily black). As an experiment, I took the same black and white image that was demonstrating the scuffing and printed it as a black and white RGB image on the Ilford using the color driver instead of ABW and, interestingly, did not see scuffing. That was just one printing and might be random...but I should probably try to repeat it as it might raise some interesting questions...
Howard
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After trying everything I can think of, to no avail, I called Epson tech support and had a long talk with one of the techs. He asked me to send him sample prints as well as a few sheets of media (as they only have Epson media available). I will let you lal know what transpires. In the meantime, I am alos finding that I am having a problem with frequ;ent nozzle clogs, particularly the green. The odd thing is that when I do a cleaning the problematic area of the nozzle pattern will be OK but there will be a new problem spot. I will clean again and the problem area will change and on it goes. I have a funny feeling there is a problem with this printer....will see what Epson has to say after they see my sample prints. The tech said he hadn't heard of this type of black scuffing problem before but will see if they get it on their printer with my media. I sent them some Hahn Photo Rag Baryta to try.
Howard
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That stinks Howard, especially after all the effort to get that beast into place.
Did increasing the dry time do anything? I know I really cranked it up, to the point of where it was like watching paint dry for a print coming out of the printer.
It is also quite unnerving to read about nozzle clogs with the latest generation of printer. It is the biggest annoyance with Epson's - I am not sure if it is an unsolvable problem for them, or they enjoy the increased ink consumption in clearing them.
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That stinks Howard, especially after all the effort to get that beast into place.
Did increasing the dry time do anything? I know I really cranked it up, to the point of where it was like watching paint dry for a print coming out of the printer.
It is also quite unnerving to read about nozzle clogs with the latest generation of printer. It is the biggest annoyance with Epson's - I am not sure if it is an unsolvable problem for them, or they enjoy the increased ink consumption in clearing them.
Drying time didn't seem to have an effect. I have to say though, I am impressed with tech support. The guy called me today to say he fot the prints I sent and that he sees what I am talking about. I still have some concern that they may throw their hands up because it doesn't seem to occur with the few prints I made on Epson media, and he did mention the fact that it is on other media. However, he also agreed when I said that folks all over the country have been using these other popular media on their Epson printers with excellent results without resorting to all sorts of fancy paper feed settings etc. At any rate he said he wanted to keep me in the loop (which is appreciated) and that they are going to run some tests on the 5 sheets of Photo Rag Baryta that I sent along (I didn't have any of the other media on hand to send). I sent them the files I used so that they could print the same images that I sent as samples on their printers. Anyway, I was relieved that they acknowledged that their is a problem with the prints that I sent as examples.
Howard
http://www.howardgrill.blogspot.com (http://www.howardgrill.blogspot.com)
http://www.howardgrill.com (http://www.howardgrill.com)
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Howard,
Really nice images on your website. Wonderful use of color.
A short, shallow headstrike is definitely possible with the mechanical paper warping I have previously described. Widening the platen gap or increasing thickness setting will have no effect or will make it worse. Slowing the drying between passes will only make it worse. Why? That leaves time for the warping from the recently applied wet ink to carry back to the printhead area. Widening the gap will give the paper more room to warp, and may be giving you a head strike where the ink is heaviest. In this case, the warp is too severe to stay within the area past the print head.
Have you tried my method of spraying the back of the print paper with a fine mist of water and then letting it almost dry flat before loading? There wouldn't be enough moisture left in the paper to have any effect on your vacuum pump, but it will counter the warping.
The problem is in the different construction of the papers. With my 3800 and the fiber-based materials, they got very few head strikes, but they did get them when warping was severe. More often, there were parallel scratches in the direction of paper travel at the tops of the warped areas. All this is, thankfully, a thing of the past with the pre-wetting technique.
Aloha,
Aaron
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Howard,
Really nice images on your website. Wonderful use of color.
A short, shallow headstrike is definitely possible with the mechanical paper warping I have previously described. Widening the platen gap or increasing thickness setting will have no effect or will make it worse. Slowing the drying between passes will only make it worse. Why? That leaves time for the warping from the recently applied wet ink to carry back to the printhead area. Widening the gap will give the paper more room to warp, and may be giving you a head strike where the ink is heaviest. In this case, the warp is too severe to stay within the area past the print head.
Have you tried my method of spraying the back of the print paper with a fine mist of water and then letting it almost dry flat before loading? There wouldn't be enough moisture left in the paper to have any effect on your vacuum pump, but it will counter the warping.
The problem is in the different construction of the papers. With my 3800 and the fiber-based materials, they got very few head strikes, but they did get them when warping was severe. More often, there were parallel scratches in the direction of paper travel at the tops of the warped areas. All this is, thankfully, a thing of the past with the pre-wetting technique.
Aloha,
Aaron
Aaron, I understand what you are saying. What doesn't make sense to me is that it seems to occur with each of the 4 or 5 non-Epson media I have tried, this doesn't seem to be reported by anyone (all the reviews of these media are positive and no one seems to note that anything special needs to be done other than putting them in the printer), with the exception of the Ilford Gold Fibre Silk these have all been small 8.5x11 inch sheets that are all flat and come out of the printer flat (the Ilford does seem to curl on the way out). I have used all sorts of media (granted not with photo black) in my 7600 and never had any sort of problem. Also, the Epson tech person said it didn't look like head strikes to him.
I have sent my file and several sheets of Hahn. Photo Rag Baryta to the Epson tech who is working with me on this. If he prints this same media that I am having trouble with on his printer without the scuffing then it would appear there is a problem with my 7900. If he gets the same scuffing then I am willing to believe that the issue is the media (and that Epson has been able to cure the warping problem and other manufacturers have not...does that make sense since Epson probably doesn't even manufacture their own media??). If it turns out that he gets the same problem and it is the media I will either go with just Epson media or give the wetting down method you describe a whirl...though I am still a bit concerned about the moisture being sucked up by the vacuum. Frankly, it does seem like it would be a hassle, particularly if using large sheets or particularly roll paper to have to spray and let partially dry before printing and I suspect many people will not want to do that. The thing that gets me is that these media are being used by thousands of people and not many at all seem to have a problem that is obvious when it occurs.
Thanks, also, for the kind words about my website and for your help. I will definitely let you know what happens here.
Howard
http://www.howardgrill.blogspot.com (http://www.howardgrill.blogspot.com)
http://www.howardgrill.com (http://www.howardgrill.com)
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Aaron, I understand what you are saying. What doesn't make sense to me is that it seems to occur with each of the 4 or 5 non-Epson media I have tried, this doesn't seem to be reported by anyone (all the reviews of these media are positive and no one seems to note that anything special needs to be done other than putting them in the printer), with the exception of the Ilford Gold Fibre Silk these have all been small 8.5x11 inch sheets that are all flat and come out of the printer flat (the Ilford does seem to curl on the way out). I have used all sorts of media (granted not with photo black) in my 7600 and never had any sort of problem. Also, the Epson tech person said it didn't look like head strikes to him.
I have sent my file and several sheets of Hahn. Photo Rag Baryta to the Epson tech who is working with me on this. If he prints this same media that I am having trouble with on his printer without the scuffing then it would appear there is a problem with my 7900. If he gets the same scuffing then I am willing to believe that the issue is the media (and that Epson has been able to cure the warping problem and other manufacturers have not...does that make sense since Epson probably doesn't even manufacture their own media??). If it turns out that he gets the same problem and it is the media I will either go with just Epson media or give the wetting down method you describe a whirl...though I am still a bit concerned about the moisture being sucked up by the vacuum. Frankly, it does seem like it would be a hassle, particularly if using large sheets or particularly roll paper to have to spray and let partially dry before printing and I suspect many people will not want to do that. The thing that gets me is that these media are being used by thousands of people and not many at all seem to have a problem that is obvious when it occurs.
Thanks, also, for the kind words about my website and for your help. I will definitely let you know what happens here.
Howard
http://www.howardgrill.blogspot.com (http://www.howardgrill.blogspot.com)
http://www.howardgrill.com (http://www.howardgrill.com)
My follow-up story....
I contacted tech support and spoke with someone who seemed quite concerned about the issue. In fact, he requested that I send him sample prints demonstrating the problem as well as a few sheets of media for him to test. I did this, and, for consistency, also sent the actual files that I had printed from Photoshop for him to use. I will admit that it does appear that this problem does not seem to occur when I print on the Epson media that I have. It has, however, occured with every third party paper I have tried including Ilford Gold Fibre Silk, Harmon Gloss FB AL, Hahnemuhle Photo Rag Baryta, and Hahnemuhle Fine Art Baryta....all very popular media that have undergone extensive reviews on multiple websites with reportedly superb results.
I was contacted very promptly by the person I spoke with after he received the material I sent. In fact, he could easily see what the issue was on the samples that I sent, though it was not immediately apparent to him what the cause was. He did not think the problem was caused by head strikes. Now here is the part that I find disturbing. He was able to print the files that I sent on his Epson 7900 using the same media that I sent with NO evidence of scuffing at all. My immediate conclusion was that if the same paper and same file that is giving me a problem is coming out perfectly on his printer, then there must be a problem with mine....issue solved!
Needless to say, things are not so simple. He stated that this was his initial conclusion as well, but that he was told by the other agents he was conferring with that this was not the case. Their conclusion was that since the problem does not seem to occur with the two Epson papers I tried (Luster and Exhibition Fibre), that the problem must be in either the third party media or with the printer settings. He agreed with me that it wasn't the media, as it doesn't seem possible that I would have gotten four separate medias that were all defective. I had already tried changing the platen gap setting, the paper thickness setting, the high speed on/off setting, the drying time setting....in short, every setting there is, but to no avail. So I said 'fine, tell me the settings that you have your printer set to and I will set my printer to the same setting and we will see if that fixes it'....logical, right? Apparently not so!
I was told that each printer is different and that a specific setting on one printer might not yield the same effect on another (though I have always been told that the profesional printers are built to very tight tolerances). I told him that I didn't think he himself actually believed what he was telling me. There was a sort of silent aquiesence and hethen said that this is what the support staff he was working with felt was the case. They were going to send me various Epson media to see if the problem occured or could be reproduced by me on the various Epson papers. As an aside, he told me that his best guess would be to reduce the paper feed by about -2. I told him that on my 7600 I had printed on many different media and never had to change the paper feed. Nonetheless, I gave the change in paper feed a shot and, needless to say, it made no difference at all. If anything, the output looked even worse.
I understand, to some degree, where Epson is coming from in that they do not feel a need to support non-Epson papers. However, this professional grade printer is widely used to print on third party media and the media I have been using are extremely popular and certainly not obscure. If their printer could not consistently print on third party papers I doubt they would sell as many of them as they do. The fact that their printer does not cause the problem seems to indicate to me that mine does have a problem which they are not acknowledging.
However, all is not yet lost. When I discussed with the support tech that I have been having a recurrent problem with nozzle clogs despite multiple cleanings he did offer that this was not normal for a new machine and was an indication to have a service rep come out to the house. He did say that while the only objective problem that Epson would support is the nozzle clog issue at this point, if I asked the rep to do so they would be able to perform full diagnostics on the printer and make any repair required if something were to objectively test abnormal. However, they could not directly address the third party media issue despite the fact that they agreed that the prints I sent clearly demonstrated a problem.
We will see what happens when the rep comes out. I am hoping to have them come to check the machine early next week, but, needless to say, I am not really happy with the way things are shaping up.
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Interestingly, I received a package from Epson with a new printhead and capping station as well as a sub-assembly board in the mail even though they hadn't mentioned that they were going to be sending me any parts. The Epson tech is coming from a fair distance away on Wednesday. I spoke with him on the phone and he seemed genuinely concerned. I was heartened by his comment that one should be able to print on any third party media on these printers...which is not the response I was getting from Epson Central. In the meantime, on my blog, someone reported that they were having a similar problem and has gone through three 9900's without resolution of the problem.
I will report back on Wednesday as to what happens.
Howard
http://www.howardgrill.blogspot.com (http://www.howardgrill.blogspot.com)
http://www.howardgrill.com (http://www.howardgrill.com)
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I read with interest your problem with the Epson 7900 also I see posted the same issue on your blog.
I believe I HAD the same problem with my 7900 AND 9900 only resolved last night after hours of fiddling of my driver settings. Epson tech support are very good, but I can see where they may find this problem a little difficult to tackle.
I too had problems with darker areas of the prints, and especially using Photo Rag 308gsm (third party paper). I experimented with the Platen gap and discovered the setting that fixed it was curiously the 'standard' setting for Platen gap but using a paper thickness of '5'. I found that if I used a 'Wide' or 'Wider' setting for the Platen gap, the problem was evident.
I'm printing from Photoshop and the standard setting for the Velvet Fine Art media is 'Auto' for the platen gap. This I found causes scuffing, so perhaps 'Auto' means narrow for the platen gap?
By increasing the paper thickness setting to 5 seems to eliminate scuffing, as setting to 3 (which I tried) causes slight scuffing in some instances. I hadn't tried '4' but I felt '5' was a good setting because it's often quoted on the Hahnemuhle website for their canned ICC profiles.
It's strange that I never had this problem on my 7880 and 9800 that I recently sold when using 'Wide' or 'Wider' as my standard settings.
I would be curious to know (in advanced of your Epson engineer visit) if the above might fix your problem also, seeing as I have had a similar issue and resolved it by driver settings?
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I read with interest your problem with the Epson 7900 also I see posted the same issue on your blog.
I believe I HAD the same problem with my 7900 AND 9900 only resolved last night after hours of fiddling of my driver settings. Epson tech support are very good, but I can see where they may find this problem a little difficult to tackle.
I too had problems with darker areas of the prints, and especially using Photo Rag 308gsm (third party paper). I experimented with the Platen gap and discovered the setting that fixed it was curiously the 'standard' setting for Platen gap but using a paper thickness of '5'. I found that if I used a 'Wide' or 'Wider' setting for the Platen gap, the problem was evident.
I'm printing from Photoshop and the standard setting for the Velvet Fine Art media is 'Auto' for the platen gap. This I found causes scuffing, so perhaps 'Auto' means narrow for the platen gap?
By increasing the paper thickness setting to 5 seems to eliminate scuffing, as setting to 3 (which I tried) causes slight scuffing in some instances. I hadn't tried '4' but I felt '5' was a good setting because it's often quoted on the Hahnemuhle website for their canned ICC profiles.
It's strange that I never had this problem on my 7880 and 9800 that I recently sold when using 'Wide' or 'Wider' as my standard settings.
I would be curious to know (in advanced of your Epson engineer visit) if the above might fix your problem also, seeing as I have had a similar issue and resolved it by driver settings?
Pivozone...I read your post and at first said "No Way!" as I tried just about every setting and panel change possible. But then I figured I might as well give it a try...after all, what is there to loose besides just a bit more media. Now, I swear that I tried the regular platen gap before. Then again, I can't remember for sure if I went right to the wide setting or not with these fine art papers. At any rate, I just tried it and my initial results are....GOOD. I have to say that I am totally amazed as I remember one very in depth review of the 3800 that said there was no detectable difference between standard, wide, and wider.
Well, in the morning I have to try a few more different media, but I am (amazingly) for the first time convinced that the problem MAY be solved. The tech has to come anyway as I can't unclog my green nozzle and am having frequent cleanings etc...but the biggest issue is this one. Is it really possible that I had gone right to the wide setting and that the wide setting could so royally screw up an image? I am also, at the wider setting, getting non-aligned and ghost images intermittently which I will show the tech.
Pivozone, I can't thank you enough. Over the last two weeks you don't know how much expensive paper, ink, time and aggravation has been spent on this and now I think there may be an answer. It is late now, but I will report back as I test a few more media!
PS, anyone out there want to try setting their 7900 platen gap to wide and printing an image with a large expanse of black to see if there is subtle, but real, scuffing or banding in the deep colors like black? If it is reproducible on other printers than it may be a glitch that somehow needs to be more broadly fixed and might also help define a problem that could be a problem for other folks out there. If anyone does, I would really love to hear if it is reproducible!
Howard
http://www.howardgrill.blogspot.com (http://www.howardgrill.blogspot.com)
http://www.howardgrill.com (http://www.howardgrill.com)
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By increasing the paper thickness setting to 5 seems to eliminate scuffing, as setting to 3 (which I tried) causes slight scuffing in some instances. I hadn't tried '4' but I felt '5' was a good setting because it's often quoted on the Hahnemuhle website for their canned ICC profiles.
BTW, there's a tool to set the right paper thickness, in the LFP/Cutom paper setup/Thickness pattern. It prints test sheet with few samples of two vertical lines, which are printed with different thickness settings and one chooses these which are best aligned - no gap between them.
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I'm glad that seems to fix things.
However, I'm having a different problem now that platen gap is 'standard'.
I'm finding there are frequent ink deposits on the edge farthest from the right side of the machine (basically on the left edge of the paper when you are facing the machine).
It's usually deposited about 1-2cm from the edge and looks like ink 'spills'. I didn't get this with a 'wide' or 'wider' settings.
You might like to test this yourself. I'm using Photo Rag 308 gsm on a 24" roll.
I'm trying to experiment now using a paper thickness of '6' as obviously because of the previous problem increasing the platen gap is not desirable.
Looking also at possible firmware upgrades?
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I'm glad that seems to fix things.
However, I'm having a different problem now that platen gap is 'standard'.
I'm finding there are frequent ink deposits on the edge farthest from the right side of the machine (basically on the left edge of the paper when you are facing the machine).
It's usually deposited about 1-2cm from the edge and looks like ink 'spills'. I didn't get this with a 'wide' or 'wider' settings.
You might like to test this yourself. I'm using Photo Rag 308 gsm on a 24" roll.
I'm trying to experiment now using a paper thickness of '6' as obviously because of the previous problem increasing the platen gap is not desirable.
Looking also at possible firmware upgrades?
Because I am still sorting out what papers to use with photo black I haven't done any roll printing on the 7900 yet. I still have my 7600 set for matte and have been printing on rolls of Photo Rag there for some time.....with the platen gap set to wide....with no problem. I sure hope that starting with rolls on the 7900 doesn't open up a whole new problem. Have you tried to take the curl out of the paper with a D-Roller type device (I use a homemade one) before loading the paper. Perhaps there is a bit too much curl in the paper?
Howard
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BTW, there's a tool to set the right paper thickness, in the LFP/Cutom paper setup/Thickness pattern. It prints test sheet with few samples of two vertical lines, which are printed with different thickness settings and one chooses these which are best aligned - no gap between them.
Mulis...when you set up a custom profile on the printer LCD panel does that 'override' the settings in the driver, or do you have to set up a custom profile in the driver as well using the thickness setting that you obtained from the printout?
Howard
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I'm glad that seems to fix things.
However, I'm having a different problem now that platen gap is 'standard'.
I'm finding there are frequent ink deposits on the edge farthest from the right side of the machine (basically on the left edge of the paper when you are facing the machine).
It's usually deposited about 1-2cm from the edge and looks like ink 'spills'. I didn't get this with a 'wide' or 'wider' settings.
You might like to test this yourself. I'm using Photo Rag 308 gsm on a 24" roll.
I'm trying to experiment now using a paper thickness of '6' as obviously because of the previous problem increasing the platen gap is not desirable.
Looking also at possible firmware upgrades?
I had the same problem with Epson Exhibition Fiber. I increasd the platen gap but still had the same problem. I haven't had this problem with any other media I print with: Harman, Hahnemuhle or Ilford. My solution? I don't use Epson Exhibition Fiber.
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I had the same problem with Epson Exhibition Fiber. I increasd the platen gap but still had the same problem. I haven't had this problem with any other media I print with: Harman, Hahnemuhle or Ilford. My solution? I don't use Epson Exhibition Fiber.
Just tried with Hahn. Photo Rag rolls and matte black ink. No zebra stripes! I dif get, in the middle of the border where the 7900 cut the paper a small blob of black ink, about only 1mm diameter on the front of the image at the very edge, though it seems to have been dragged down and behind the paper with a long thin streak on the back of the paper???
Howard
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Mulis...when you set up a custom profile on the printer LCD panel does that 'override' the settings in the driver, or do you have to set up a custom profile in the driver as well using the thickness setting that you obtained from the printout?
Not sure. I would expect the printer panel to have priority over driver. I don't even understand why one has to set media type on printer, when already set that info in the print dialog. So I set the same to both.
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Problem with scuffing totally resolved on all media by setting the platen gap to standard. I had used wide on all fine art papers with my 7600 and I guess had assumed it would be the same with the 7900. I was also getting weird ghost images with the platen gap set t wide.....I am a happy camper now!
The nozzle clogs which are recurrent in the green are a little uncertain at this point. The tech put in a new capping station and the clog seems to move from nozzle to nozzle suggesting that it is likely air bubbles and not the printhead. Epson is sending me a full set of inks to compensate me for all the cleanings I have been doing to try and solve this and because a power clean has been suggested which uses a good deal of ink but apparently is quite good at purging micro-bubbles as well. This does need seem like it is insurmountable and they told me they will come on back out if the power clean doesn't fix it.
Oh, and by the way, the prints are great.
Howard