Epson Scan + v800 all of a sudden scanning everything pure green!!

Sarcophilus Harrisii said:
Hi,
I've been using Epson Scan for around 8 or 9 years (with the 800s predecessor, the V700). So yes, I've scanned with it a bit. By the sound of it, more than you. My point (perhaps I was being too obscure) is that, with settings like that you do not present yourself as a user who is intimately acquainted with the software. I personally suspect there may be some user error involved. Regarding complaining, perhaps I should have been clearer, I was actually referring to their service but I could have expressed that better. Sorry. Of course, you want a fully functional process (is that not self evident to all of us?). I still think you've done pretty well though, because by your own admission, its working OK with Silverfast, but you are still getting a brand new scanner. Personally, I think that's a pretty decent start, even if you may not.

I do have a tip for you that might be useful. Find your temp file (or whatever a mac has that passes for that) and ensure any twain files or temp folders that Epson Scan has created are deleted. Empty your trash can or whatever it's called on a Mac. Uninstall the software. Reboot. Download it from Epson's site and re-install.

I use a PC with Windows but can vouch from years of previous experience with Epson Scan that these leftover folders and files can be the source of various glitches including Eg. failure to preview frames correctly and refusal of scans to process for frames that have digital ICE enabled. No guarantees it will work for a Mac also but it's certainly worth a shot as it's cost neutral. Apologies for not suggesting this in my previous post (my posts are, believe it or not, often helpful) but I only just recalled it. Seriously. It's been a three cup of coffee day for me, today.
Regards
Brett
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I've scanned thousands of medium format negatives on this, promise that I am "intimately acquainted" with this scanner and it's softwares both Epson Scan and SilverFast (even if the screenshots show otherwise). Epson Scan has forced me to learn what every window and button does but this issue is a total curveball. With a fresh install on a totally different computer and 0 film in the scanner, it gives pure green output. Since you are so much more experienced than me, you should know that this isn't normal, should not be happening, and is not user error. There can't be user error when it gives this output by itself with a fresh reset. There is a reason for the "settings like that". Its because its completely reset. There are no settings that change or affect the pure green preview, not in the configuration window, and certainly not in any of the image adjustment tools. The preview should be pure black but it's not.

I never complained about their service, not sure where you got that. Their service was excellent. I am not receiving a brand new scanner. Replacements are all refurbished, and who knows how many problems that one had or how long it will last as well. I am complaining about their hardware, but I guess $800 for a scanner is considered low-end.

Regarding your tip, I switched completely to a computer that never had Epson Scan installed and before I did anything an empty preview shows pure green. It shouldn't, it should show black as you know. Thanks for the tip I'll see if I can give it a go anyway.

Edit: deleted the epson temp files, uninstalled with epson's uninstaller, emptied trash, rebooted, reinstalled, same issue.
 
Scapevision said:
. I also remember there was an issue with Epson scan on some osx version.
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That is I think unrelated to this issue. The version of software El Capitan from 10.11.4 required a software patch:

http://redirect.viglink.com/?format...xt=http://esupport.epso...WQqLoU003D&tc=6

The problem was "stalling" between scans of a strip and unrelated to output quality.
No one AFAIK reported colour issues without the patch applied.

For what it is worth my guess is it is a calibration problem. (Green lines are sometimes reported if the glass has been cleaned, inside, and dust gets on the calibration area and "contaminates" it. The other software may be reading the calibration output differently than the native Epsom, I suspect the "new" scanner will work and that it is indeed a hardware problem. If repeated installs and different computers show the problem it has to be the scanner itself IMHO.
 
When I've experienced a software problem I can't resolve, I roll the computer back to a time I knew it to be working normally. I've always had success. Are you able to do such a thing on a Mac?
Pete
 
Frustrating...

the fact that it works with prints, B&W negatives, and different software seems to indicate that it's not a hardware related problem. I am still putting my money on a problem with drivers and/or OS-application conflicts (which don't always get cleaned up when you reinstall the application). Assuming you haven't done any recent system changes or updates (including automatic OS fixes)... it's interesting that tech support would send a new / replacement hardware... they must suspect something or are just buying time. If an old computer system is available then testing on that equipment might be an option, but I understand the frustration of these types of problems...

Please provide an update when the issue is resolved.
 
Pete B said:
When I've experienced a software problem I can't resolve, I roll the computer back to a time I knew it to be working normally. I've always had success. Are you able to do such a thing on a Mac?
Pete
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Yes it's called "Time Machine" but as the OPsays a fresh install on another box still doesn't work and the failure was half way through a roll my money stays on hardware, which is what Epson obviously think as well shipping a fresh unit out, not the first fix for a software issue 😉
As seen elsewhere the green is indicative of a calibration issue, hardware related.
 
ChrisLivsey said:
For what it is worth my guess is it is a calibration problem. (Green lines are sometimes reported if the glass has been cleaned, inside, and dust gets on the calibration area and "contaminates" it. The other software may be reading the calibration output differently than the native Epsom, I suspect the "new" scanner will work and that it is indeed a hardware problem. If repeated installs and different computers show the problem it has to be the scanner itself IMHO.
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Yes I know any little obstruction in the calibration area causes lines and artifacts in the scan but this scanner was never opened or cleaned inside. The most I did was wipe the surface of the glass once in a while. I agree, because the same issue happens on two different computers I am also suspecting its a hardware issue now too, perhaps Silverfasts output is a fluke.

Pete B said:
When I've experienced a software problem I can't resolve, I roll the computer back to a time I knew it to be working normally. I've always had success. Are you able to do such a thing on a Mac?
Pete
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You are, but no OS or Epson Scan update was made when this randomly started happening. Switching to a different computer and older version of Epson Scan also gave the same issue.

shimokita said:
Please provide an update when the issue is resolved.
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The replacement is coming today, will provide update asap.

ChrisLivsey said:
Yes it's called "Time Machine" but as the OPsays a fresh install on another box still doesn't work and the failure was half way through a roll my money stays on hardware, which is what Epson obviously think as well shipping a fresh unit out, not the first fix for a software issue 😉
As seen elsewhere the green is indicative of a calibration issue, hardware related.
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Yes totally different computer and same issue so I dont think OS is the issue here. We'll see tonight I guess!
 
Some years back I had a problem that was very difficult to diagnose. Turned out it was a bad cable to the device, one of the connections had gotten flakey. A new cable fixed the problem.

Scanners can sometimes be fussy with communications, I have a Nikon CS-5000 that refuses to run unless the computer (windows 7) is operated at reduced clock speed.

Glenn
 
Update:

Changed the usb cable, plugged in the replaement scanner. SAME problem, even on a third computer!

I tested it on VueScan as well, also green scans.

If I changed computers, changed scanners, changed softwares, I am totally out of ideas what could be causing this...I feel like its time to sell it and jump ship to a more expensive Plustek 🙁
 
The epson support guy whos been in their scanner dept 18 years says he has no idea why this happens as no one else has reported an identical issue.

I want to blame it on the fact that all 3 computers are macs but why would my scanner have been working for 16 months on 2 of these macs before and all of a sudden not now?
 
How 48-bit color negative scans are coming out: previews green, 0 green information in actual scan:

NPCMp8f.png


Could this be one of those unsolvable problems?
 
Did the replacement unit contain a new top lid as well? Can you check if your transmission bulb lights up normal and if there is a difference when switching software.

Are you scanning using film holders and have you tried to scan without them?

This is quite bizarre indeed.
 
Maybe try it with "No color correction" selected and see if it makes a difference. Try the different ones available if this doesn't make a difference. Alternatively, when in the "Histogram Adjustment" try to select the green channel only and see what the histogram looks like there. Maybe just somehow there's some adjustment made to it out of nowhere? Another thing to try is set 24bit color and see if it makes a difference. The replacement scanner makes it look like it's a definite software issue within Epson Scan or some kind of miscommunication between Epson Scan and OS in terms of video driver or color space (EpsonRGB as default).

One more thing. Try to scan with 1200dpi and all other settings the same, see if it makes a difference. I've had issues when computer couldn't handle extra large files and gave some weird output before.
 
Netsoft2k said:
Did the replacement unit contain a new top lid as well? Can you check if your transmission bulb lights up normal and if there is a difference when switching software.

Are you scanning using film holders and have you tried to scan without them?
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What is "new top lid"? The bulbs all light up the same regardless of software. I am not using any film holders. I am even trying without any film at all! Just scanning empty glass and it gives this green preview.

charjohncarter said:
Like I said before your scanner is working or you wouldn't get a good result with your silver scan or whatever it is called.

Why don't you try this (it is from one of our RFF members):

http://www.coltonallen.com/getting-the-most-from-color-negative-film-with-your-epson-flatbed/
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Either the scanners are both working or both defective, very hard to tell but im having a tough time believing both have this bizarre issue. The link you sent is one of the best ive ever I used almost 2 years ago ago to learn how to color correct on Epson Scan, but it is unrelated to this issue since I cannot even get a preview.

Scapevision said:
Maybe try it with "No color correction" selected and see if it makes a difference. Try the different ones available if this doesn't make a difference. Alternatively, when in the "Histogram Adjustment" try to select the green channel only and see what the histogram looks like there. Maybe just somehow there's some adjustment made to it out of nowhere? Another thing to try is set 24bit color and see if it makes a difference. The replacement scanner makes it look like it's a definite software issue within Epson Scan or some kind of miscommunication between Epson Scan and OS in terms of video driver or color space (EpsonRGB as default).

One more thing. Try to scan with 1200dpi and all other settings the same, see if it makes a difference. I've had issues when computer couldn't handle extra large files and gave some weird output before.
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Tried all the color configurations, same issue. No color correct just deactivates color adjustment tools but doesnt fix the problem. 24-bit color does not make a difference. I am trying to blame Epson Scan but remember that VueScan gives identical green previews so its hard to figure out whats going on.

I've scanned tons and tons of 3200dpi files no issue at all though the last red/blue image I posted previously was at 1200dpi for speed's sake.

Here is what the histogram green channel shows and moving the sliders does nothing:

9gLqn7n.jpg


My mouse was over the preview at the time of this screenshot. Bizarre that the densitometer reads green:255 yet the histogram shows no green data...
 
So your green channel goes completely white. I missed the part about vuescan, maybe it is a hardware issue of some kind. What's the difference in output settings when you are using silverfast? Are you using some kind of color adjustment or color space there? I'm assuming you tried both scanners with different usb ports and different cables, right?
The top lid of the scanner comes off and you can interchange them between scanners.
One other thing, have you tried scanning an old negative you have scanned correctly before and see if it comes out green now? That would rule out development issue.
 
Scapevision said:
So your green channel goes completely white. I missed the part about vuescan, maybe it is a hardware issue of some kind. What's the difference in output settings when you are using silverfast? Are you using some kind of color adjustment or color space there? I'm assuming you tried both scanners with different usb ports and different cables, right?
The top lid of the scanner comes off and you can interchange them between scanners.
One other thing, have you tried scanning an old negative you have scanned correctly before and see if it comes out green now? That would rule out development issue.
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I would say hardware issue as well but two different scanners, 3 different computers, 2 different usb cables...no difference so its hard to pinpoint the issue. I just posted the difference in output if you refresh the page and look at my last reply. There are no "settings" that are special to silverfast, it automatically reads a proper preview and spits out perfect color (though Epson's tones are usually much smoother being my SF is only 24bit).

It cant be anything related to the negatives because this issue occurs with no film in the scanner and as I showed above, my home development is spot on!
 
Just to touch all bases, what OS are you using...

Epson Japan indicates the following are supported:

OS X Mountain Lion (Mac OS 10.8) / OS X Lion (Mac OS 10.11) / OS X Yosemite (Mac OS 10.10) / OS X Majoricks (Mac OS 10.9) / OS X Mountain Lion Mac OS 10.7) / Mac OS X 10.6 (Intel) / Mac OS X 10.5 (Intel / PPC)
 
Three computers:

10.6
10.8.5
10.12

None work...I dont know if its an OS issue since it worked fine with these for 16 months prior
 
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